TY  - JOUR
AU  - Xu, Shiyin
AU  - Liu, Xinhe
AU  - Hou, Yameng
AU  - Kou, Min
AU  - Xu, Xinshi
AU  - Veljković, Filip
AU  - Veličković, Suzana
AU  - Kong, Xianglei
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12955
AB  - Gold chloride clusters play an important role in catalysis and materials chemistry. Due to the diversity of their species and isomers, there is still a dearth of structural studies at the molecular level. In this work, anions of AunCln+3- and AunCln+5- (n = 2–4) clusters were obtained by laser desorption/ionization mass spectrometry (LDI MS), and the most stable isomers of AunCln+3- were determined after a thorough search and optimization at the TPSSh/aug-cc-pVTZ/ECP60MDF level. The results indicate that all isomers with the lowest energy have a planar zigzag skeleton. In each species, there is one Au(III) atom at the edge connected with four Cl atoms, which sets it from the other Au(I) atoms. Four growth pathways for AunCln+3- (n = 2–7) clusters are proposed (labelled R1, R2, R3 and R4). They are all associated with an aurophilic contact and are exothermic. The binding energies tend to stabilize at ~ −41 kcal/mol when the size of the cluster increases in all pathways. The pathway R1, which connects all the most stable isomers of the respective clusters, is characterized by cluster growth due to aurophilic interactions at the terminal atom of Au(I) in the zigzag chains. In the pathway of R4 involving Au-Au bonding in its initial structures (n ≤ 3), the distance between intermediate gold atoms grows with cluster size, ultimately resulting in the transfer of the intermediate Au-Au bonding into aurophilic interaction. The size effect on the structure and aurophilic interactions of these clusters will be better understood based on these discoveries, potentially providing new insights into the active but elusive chemical species involved in the corresponding catalytic reactions or nanoparticle synthesis processes.
T2  - Frontiers in Chemistry
T1  - Structures and growth pathways of AunCln+3-(n≤7) cluster anions
VL  - 12
SP  - 1382443
DO  - 10.3389/fchem.2024.1382443
ER  - 

@article{
author = "Xu, Shiyin and Liu, Xinhe and Hou, Yameng and Kou, Min and Xu, Xinshi and Veljković, Filip and Veličković, Suzana and Kong, Xianglei",
year = "2024",
abstract = "Gold chloride clusters play an important role in catalysis and materials chemistry. Due to the diversity of their species and isomers, there is still a dearth of structural studies at the molecular level. In this work, anions of AunCln+3- and AunCln+5- (n = 2–4) clusters were obtained by laser desorption/ionization mass spectrometry (LDI MS), and the most stable isomers of AunCln+3- were determined after a thorough search and optimization at the TPSSh/aug-cc-pVTZ/ECP60MDF level. The results indicate that all isomers with the lowest energy have a planar zigzag skeleton. In each species, there is one Au(III) atom at the edge connected with four Cl atoms, which sets it from the other Au(I) atoms. Four growth pathways for AunCln+3- (n = 2–7) clusters are proposed (labelled R1, R2, R3 and R4). They are all associated with an aurophilic contact and are exothermic. The binding energies tend to stabilize at ~ −41 kcal/mol when the size of the cluster increases in all pathways. The pathway R1, which connects all the most stable isomers of the respective clusters, is characterized by cluster growth due to aurophilic interactions at the terminal atom of Au(I) in the zigzag chains. In the pathway of R4 involving Au-Au bonding in its initial structures (n ≤ 3), the distance between intermediate gold atoms grows with cluster size, ultimately resulting in the transfer of the intermediate Au-Au bonding into aurophilic interaction. The size effect on the structure and aurophilic interactions of these clusters will be better understood based on these discoveries, potentially providing new insights into the active but elusive chemical species involved in the corresponding catalytic reactions or nanoparticle synthesis processes.",
journal = "Frontiers in Chemistry",
title = "Structures and growth pathways of AunCln+3-(n≤7) cluster anions",
volume = "12",
pages = "1382443",
doi = "10.3389/fchem.2024.1382443"
}

Xu, S., Liu, X., Hou, Y., Kou, M., Xu, X., Veljković, F., Veličković, S.,& Kong, X.. (2024). Structures and growth pathways of AunCln+3-(n≤7) cluster anions. in Frontiers in Chemistry, 12, 1382443.
https://doi.org/10.3389/fchem.2024.1382443

Xu S, Liu X, Hou Y, Kou M, Xu X, Veljković F, Veličković S, Kong X. Structures and growth pathways of AunCln+3-(n≤7) cluster anions. in Frontiers in Chemistry. 2024;12:1382443.
doi:10.3389/fchem.2024.1382443 .

Xu, Shiyin, Liu, Xinhe, Hou, Yameng, Kou, Min, Xu, Xinshi, Veljković, Filip, Veličković, Suzana, Kong, Xianglei, "Structures and growth pathways of AunCln+3-(n≤7) cluster anions" in Frontiers in Chemistry, 12 (2024):1382443,
https://doi.org/10.3389/fchem.2024.1382443 . .

TY  - JOUR
AU  - Todorović, Ana
AU  - Bobić, Katarina
AU  - Veljković, Filip
AU  - Pejić, Snežana
AU  - Glumac, Sofija
AU  - Stanković, Sanja
AU  - Milovanović, Tijana
AU  - Vukoje, Ivana
AU  - Nedeljković, Jovan
AU  - Radojević Škodrić, Sanja
AU  - Pajović, Snežana B.
AU  - Drakulić, Dunja
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13090
AB  - Nanoparticles (NPs), a distinct class of particles ranging in size from 1 to 100 nm, are one of the most promising technologies of the 21st century, and titanium dioxide NPs (TiO2 NPs) are among the most widely produced and used NPs globally. The increased application of TiO2 NPs raises concerns regarding their global safety and risks of exposure. Many animal studies have reported the accumulation of TiO2 NPs in female reproductive organs; however, evidence of the resultant toxicity remains ambiguous. Since the surface area and chemical modifications of NPs can significantly change their cytotoxicity, we aimed to compare the toxic effects of pristine TiO2 powder with surface-modified TiO2 powders with salicylic acid (TiO2/SA) and 5-aminosalicylic acid (TiO2/5-ASA) on the ovaries, oviducts, and uterus on the 14th day following acute oral treatment. The results, based on alterations in food and water intake, body mass, organ-to-body mass ratio, hormonal status, histological features of tissues of interest, and antioxidant parameters, suggest that the modification with 5-ASA can mitigate some of the observed toxic effects of TiO2 powder and encourage future investigations to create NPs that can potentially reduce the harmful effects of TiO2 NPs while preserving their positive impacts.
T2  - Antioxidants
T1  - Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats
VL  - 13
IS  - 2
SP  - 231
DO  - 10.3390/antiox13020231
ER  - 

@article{
author = "Todorović, Ana and Bobić, Katarina and Veljković, Filip and Pejić, Snežana and Glumac, Sofija and Stanković, Sanja and Milovanović, Tijana and Vukoje, Ivana and Nedeljković, Jovan and Radojević Škodrić, Sanja and Pajović, Snežana B. and Drakulić, Dunja",
year = "2024",
abstract = "Nanoparticles (NPs), a distinct class of particles ranging in size from 1 to 100 nm, are one of the most promising technologies of the 21st century, and titanium dioxide NPs (TiO2 NPs) are among the most widely produced and used NPs globally. The increased application of TiO2 NPs raises concerns regarding their global safety and risks of exposure. Many animal studies have reported the accumulation of TiO2 NPs in female reproductive organs; however, evidence of the resultant toxicity remains ambiguous. Since the surface area and chemical modifications of NPs can significantly change their cytotoxicity, we aimed to compare the toxic effects of pristine TiO2 powder with surface-modified TiO2 powders with salicylic acid (TiO2/SA) and 5-aminosalicylic acid (TiO2/5-ASA) on the ovaries, oviducts, and uterus on the 14th day following acute oral treatment. The results, based on alterations in food and water intake, body mass, organ-to-body mass ratio, hormonal status, histological features of tissues of interest, and antioxidant parameters, suggest that the modification with 5-ASA can mitigate some of the observed toxic effects of TiO2 powder and encourage future investigations to create NPs that can potentially reduce the harmful effects of TiO2 NPs while preserving their positive impacts.",
journal = "Antioxidants",
title = "Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats",
volume = "13",
number = "2",
pages = "231",
doi = "10.3390/antiox13020231"
}

Todorović, A., Bobić, K., Veljković, F., Pejić, S., Glumac, S., Stanković, S., Milovanović, T., Vukoje, I., Nedeljković, J., Radojević Škodrić, S., Pajović, S. B.,& Drakulić, D.. (2024). Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats. in Antioxidants, 13(2), 231.
https://doi.org/10.3390/antiox13020231

Todorović A, Bobić K, Veljković F, Pejić S, Glumac S, Stanković S, Milovanović T, Vukoje I, Nedeljković J, Radojević Škodrić S, Pajović SB, Drakulić D. Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats. in Antioxidants. 2024;13(2):231.
doi:10.3390/antiox13020231 .

Todorović, Ana, Bobić, Katarina, Veljković, Filip, Pejić, Snežana, Glumac, Sofija, Stanković, Sanja, Milovanović, Tijana, Vukoje, Ivana, Nedeljković, Jovan, Radojević Škodrić, Sanja, Pajović, Snežana B., Drakulić, Dunja, "Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats" in Antioxidants, 13, no. 2 (2024):231,
https://doi.org/10.3390/antiox13020231 . .

TY  - CHAP
AU  - Veličković, Suzana
AU  - Veljković, Filip
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12720
AB  - This chapter summarizes the experimental methods used to obtain “superalkali” clusters. First, a brief review of the names, classifications and descriptions of the chemical structure of these clusters useful for explaining the experimental research was given. In the next part of the chapter, the various methods of mass spectrometry are presented, with emphasis on the study of the evaporation of individual salts of alkali halides or their mixtures, where “superalkali” clusters are inevitably detected. Surface ionization (thermal ionization) and the Knudsen effusion cell are two standard techniques that have been used in mass spectrometry for many years and have played an important role in the field of “superalkali” clusters from their discovery to the present.  For this reason, the basic principles of operation of the surface ionization source and the Knudsen cell have been presented, along with a brief history of the origin and application of these methods. Some new possibilities of using the Knudsen cell in the mass spectrometer are pointed out, as well as the possibility of combining surface ionization and the Knudsen cell to obtain “superalkali” clusters. The possibilities of determining ionization energies by these two methods are also described.
PB  - Boca Raton : CRC Press
T2  - Superhalogens and Superalkalis
T1  - Mass Spectrometry and “Superalkali” Clusters
SP  - 156
EP  - 197
DO  - 10.1201/9781003384205-7
ER  - 

@inbook{
author = "Veličković, Suzana and Veljković, Filip",
year = "2024",
abstract = "This chapter summarizes the experimental methods used to obtain “superalkali” clusters. First, a brief review of the names, classifications and descriptions of the chemical structure of these clusters useful for explaining the experimental research was given. In the next part of the chapter, the various methods of mass spectrometry are presented, with emphasis on the study of the evaporation of individual salts of alkali halides or their mixtures, where “superalkali” clusters are inevitably detected. Surface ionization (thermal ionization) and the Knudsen effusion cell are two standard techniques that have been used in mass spectrometry for many years and have played an important role in the field of “superalkali” clusters from their discovery to the present.  For this reason, the basic principles of operation of the surface ionization source and the Knudsen cell have been presented, along with a brief history of the origin and application of these methods. Some new possibilities of using the Knudsen cell in the mass spectrometer are pointed out, as well as the possibility of combining surface ionization and the Knudsen cell to obtain “superalkali” clusters. The possibilities of determining ionization energies by these two methods are also described.",
publisher = "Boca Raton : CRC Press",
journal = "Superhalogens and Superalkalis",
booktitle = "Mass Spectrometry and “Superalkali” Clusters",
pages = "156-197",
doi = "10.1201/9781003384205-7"
}

Veličković, S.,& Veljković, F.. (2024). Mass Spectrometry and “Superalkali” Clusters. in Superhalogens and Superalkalis
Boca Raton : CRC Press., 156-197.
https://doi.org/10.1201/9781003384205-7

Veličković S, Veljković F. Mass Spectrometry and “Superalkali” Clusters. in Superhalogens and Superalkalis. 2024;:156-197.
doi:10.1201/9781003384205-7 .

Veličković, Suzana, Veljković, Filip, "Mass Spectrometry and “Superalkali” Clusters" in Superhalogens and Superalkalis (2024):156-197,
https://doi.org/10.1201/9781003384205-7 . .

TY  - CONF
AU  - Bobić, Katarina
AU  - Todorović, Ana
AU  - Pejić, Snežana
AU  - Veljković, Filip
AU  - Pajović, Snežana
AU  - Nedeljković, Jovan
AU  - Drakulić, Dunja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12810
AB  - Titanium dioxide nanoparticles (Ti02 NPs) are widely used in different cosmetic products, food additives and pharmaceuticals. Their accumulation within the body is associated with adverse health effects. Since animal studies indicate that their outcomes could be ameliorated by different modifications, we tested the impact of Ti02 NPs surface-modified with 5-aminosalicylic acid (Ti02/5-ASA NPs) in female adult Wistar rats. For the purpose of this experiment,14 days following the acute oral intake, the effects of commercially available Ti02 NPs and i02/5-ASA NPs were compared, using well defined methods, to assess the signs of acute toxicity (agitation, convulsion, and mortality) and neurological function (visual placing,
spontaneous activity, and pacing/circling) along with the levels of end products of lipid peroxidation (LPP) in eyes. Our results indicate that following the treatments, spontaneous activity was disturbed while mortality, convulsion and visual placing were unaltered. The modification decreased Ti02 NPs-induced
impairment of agitation and pacing/circling. The insight into biomolecules in the eyes, more precisely into a marker of oxidative stress (LPP), showed that it was decreased after treatment with Ti02/5-ASA NPs in comparison to Ti02 NPs, indicating that this type of modification might mitigate Ti02 NPs-induced oxidative stress. According to obtained results, even though the exact  mechanism of the actions is still unknown, the modification with 5-aminosalicylic acid alleviates toxic effects of commercially available Ti02 NPs.
PB  - Vienna : Young Scientist Association
C3  - 18th YSA PhD Symposium 2023 : Book of abstracts
T1  - Rat toxicity study of orally administrated titanium dioxide nanoparticles modified with 5-aminosalicylic acid
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12810
ER  - 

@conference{
author = "Bobić, Katarina and Todorović, Ana and Pejić, Snežana and Veljković, Filip and Pajović, Snežana and Nedeljković, Jovan and Drakulić, Dunja",
year = "2023",
abstract = "Titanium dioxide nanoparticles (Ti02 NPs) are widely used in different cosmetic products, food additives and pharmaceuticals. Their accumulation within the body is associated with adverse health effects. Since animal studies indicate that their outcomes could be ameliorated by different modifications, we tested the impact of Ti02 NPs surface-modified with 5-aminosalicylic acid (Ti02/5-ASA NPs) in female adult Wistar rats. For the purpose of this experiment,14 days following the acute oral intake, the effects of commercially available Ti02 NPs and i02/5-ASA NPs were compared, using well defined methods, to assess the signs of acute toxicity (agitation, convulsion, and mortality) and neurological function (visual placing,
spontaneous activity, and pacing/circling) along with the levels of end products of lipid peroxidation (LPP) in eyes. Our results indicate that following the treatments, spontaneous activity was disturbed while mortality, convulsion and visual placing were unaltered. The modification decreased Ti02 NPs-induced
impairment of agitation and pacing/circling. The insight into biomolecules in the eyes, more precisely into a marker of oxidative stress (LPP), showed that it was decreased after treatment with Ti02/5-ASA NPs in comparison to Ti02 NPs, indicating that this type of modification might mitigate Ti02 NPs-induced oxidative stress. According to obtained results, even though the exact  mechanism of the actions is still unknown, the modification with 5-aminosalicylic acid alleviates toxic effects of commercially available Ti02 NPs.",
publisher = "Vienna : Young Scientist Association",
journal = "18th YSA PhD Symposium 2023 : Book of abstracts",
title = "Rat toxicity study of orally administrated titanium dioxide nanoparticles modified with 5-aminosalicylic acid",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12810"
}

Bobić, K., Todorović, A., Pejić, S., Veljković, F., Pajović, S., Nedeljković, J.,& Drakulić, D.. (2023). Rat toxicity study of orally administrated titanium dioxide nanoparticles modified with 5-aminosalicylic acid. in 18th YSA PhD Symposium 2023 : Book of abstracts
Vienna : Young Scientist Association..
https://hdl.handle.net/21.15107/rcub_vinar_12810

Bobić K, Todorović A, Pejić S, Veljković F, Pajović S, Nedeljković J, Drakulić D. Rat toxicity study of orally administrated titanium dioxide nanoparticles modified with 5-aminosalicylic acid. in 18th YSA PhD Symposium 2023 : Book of abstracts. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12810 .

Bobić, Katarina, Todorović, Ana, Pejić, Snežana, Veljković, Filip, Pajović, Snežana, Nedeljković, Jovan, Drakulić, Dunja, "Rat toxicity study of orally administrated titanium dioxide nanoparticles modified with 5-aminosalicylic acid" in 18th YSA PhD Symposium 2023 : Book of abstracts (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12810 .

TY  - JOUR
AU  - Veljković, Filip M.
AU  - Dimitrijević, Stevan P.
AU  - Dimitrijević, Silvana B.
AU  - Vurdelja, Borislava D.
AU  - Matović, Branko
AU  - Stoiljković, Milovan
AU  - Kamberović, Željko
AU  - Veličković, Suzana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10589
AB  - This work presents the perspective of applying the laser desorption/ionization mass spectrometry (LDI MS) for characterization the anode film of the Ag60Cu26Zn14, Ag58.5Cu31.5Pd10, and Ag63Cu27In10 alloys (at high concentrations of chloride ions in solutions). The reference LDI mass spectra of anode films of pure Ag and Cu have been used for the identification of product corrosion. Knowing the clusters detected in the reference spectra lead to the facilitating identification of the LDI mass spectrum of the sample and reduces the analysis time. The LDI MS analysis of these alloys revealed that the predominant corrosion product are AgCl (from AgnCln+1−/+, n = 1–3), and CuCl (from “superhalogen” CumCln− clusters, m = 1–2, n = 2–6); it also revealed Cu2(OH)3Cl (from Cu2(OH)(H2O)2+) and Cu2O (from Cu(H2O)+, Cu2O doped with chlorine). These results are in accordance with the X-ray diffraction and Raman analysis. The LDI MS spectra of alloys contain the additional peaks formed due to the mutual influences of different metals in the alloys (AgCuCl3− (AgCl-CuCl2−), AgCu2Cl4− (AgCl-CuCl-CuCl2−), and Ag2CuCl4− (AgCl-AgCl-CuCl−), which is consistent with the identified corrosion products. It should be noted that the LDI MS suggest the presence of CuCl2, which can be interpreted as the corrosion products retained in the porous films of alloys, and not detected by the other methods due to a small amount. The future theoretical and experimental studies of metal clusters, significant for metallurgy, can contribute that the LDI MS is becoming a powerful analytical tool for characterization the metal surfaces.
T2  - Arabian Journal of Chemistry
T1  - Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system
VL  - 16
IS  - 2
SP  - 104461
DO  - 10.1016/j.arabjc.2022.104461
ER  - 

@article{
author = "Veljković, Filip M. and Dimitrijević, Stevan P. and Dimitrijević, Silvana B. and Vurdelja, Borislava D. and Matović, Branko and Stoiljković, Milovan and Kamberović, Željko and Veličković, Suzana",
year = "2023",
abstract = "This work presents the perspective of applying the laser desorption/ionization mass spectrometry (LDI MS) for characterization the anode film of the Ag60Cu26Zn14, Ag58.5Cu31.5Pd10, and Ag63Cu27In10 alloys (at high concentrations of chloride ions in solutions). The reference LDI mass spectra of anode films of pure Ag and Cu have been used for the identification of product corrosion. Knowing the clusters detected in the reference spectra lead to the facilitating identification of the LDI mass spectrum of the sample and reduces the analysis time. The LDI MS analysis of these alloys revealed that the predominant corrosion product are AgCl (from AgnCln+1−/+, n = 1–3), and CuCl (from “superhalogen” CumCln− clusters, m = 1–2, n = 2–6); it also revealed Cu2(OH)3Cl (from Cu2(OH)(H2O)2+) and Cu2O (from Cu(H2O)+, Cu2O doped with chlorine). These results are in accordance with the X-ray diffraction and Raman analysis. The LDI MS spectra of alloys contain the additional peaks formed due to the mutual influences of different metals in the alloys (AgCuCl3− (AgCl-CuCl2−), AgCu2Cl4− (AgCl-CuCl-CuCl2−), and Ag2CuCl4− (AgCl-AgCl-CuCl−), which is consistent with the identified corrosion products. It should be noted that the LDI MS suggest the presence of CuCl2, which can be interpreted as the corrosion products retained in the porous films of alloys, and not detected by the other methods due to a small amount. The future theoretical and experimental studies of metal clusters, significant for metallurgy, can contribute that the LDI MS is becoming a powerful analytical tool for characterization the metal surfaces.",
journal = "Arabian Journal of Chemistry",
title = "Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system",
volume = "16",
number = "2",
pages = "104461",
doi = "10.1016/j.arabjc.2022.104461"
}

Veljković, F. M., Dimitrijević, S. P., Dimitrijević, S. B., Vurdelja, B. D., Matović, B., Stoiljković, M., Kamberović, Ž.,& Veličković, S.. (2023). Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system. in Arabian Journal of Chemistry, 16(2), 104461.
https://doi.org/10.1016/j.arabjc.2022.104461

Veljković FM, Dimitrijević SP, Dimitrijević SB, Vurdelja BD, Matović B, Stoiljković M, Kamberović Ž, Veličković S. Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system. in Arabian Journal of Chemistry. 2023;16(2):104461.
doi:10.1016/j.arabjc.2022.104461 .

Veljković, Filip M., Dimitrijević, Stevan P., Dimitrijević, Silvana B., Vurdelja, Borislava D., Matović, Branko, Stoiljković, Milovan, Kamberović, Željko, Veličković, Suzana, "Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system" in Arabian Journal of Chemistry, 16, no. 2 (2023):104461,
https://doi.org/10.1016/j.arabjc.2022.104461 . .

TY  - CONF
AU  - Veljković, Filip
AU  - Janković, Bojan
AU  - Stajčić, Ivana
AU  - Stoiljković, Milovan
AU  - Janković, Marija
AU  - Kapuran, Đorđe
AU  - Veličković, Suzana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12570
AB  - Mnogi teorijski proračuni su pokazali da su litijumom dekorisni borani (BxHy) ili klasteri bora (Bn) potencijalni materijali za skladištenje vodonika. Pored toga, pokazalo se da klasteri litijumfluorida poboljšavaju kapacitet skladištenja vodonika bolje od samog litijuma. Međutim, broj eksperimentalnih studija je mnogo manji. Zbog toga je u ovom radu ispitivana mogućnost interakcije klastera litijuma ili litijumfluorida sa boranima, metodom laserske desorpcione/jonizacione masenespektrometrije (LDI MS). Preliminarni rezultati su pokazali da negativni mod LDI maseni spektri suspenzije LiF/B (1:3) u dejonizovanoj vodi sadrži Li2(BH18) - , LiF2(BH3) - , LiB2(BH3)2 - , LiF2LiB(BH4)2 - jone. Smanjenje sadržaja bora u LiF/B sistemu (1:1) rezultira malo izmenjenim masenim spektrom. Intenzitet Li2(BH18) - i LiF2(BH3) - opada, dok druga dva jona pokazuju blago izmenjen sastav: Li2F(B3H2) - i LiF2(BH5)3 - . Rezultati pokazuju da klasteri Li2 i “superhalogen” LiF2 mogu da interaguju sa boranima. U oba slučaja, najintenzivniji joni su bili kompleksi između „superhalogena“-LiF2 i borana.
AB  - Many theoretical calculations have shown that lithium decoration of borane (BxHy) or boron (Bn) clusters are potential materials for hydrogen storage. In addition, lithium fluoride clusters have been shown to improve hydrogen storage capacity better than lithium itself. However, the number of experimental studies is much smaller. Therefore, in this work, the possibility of interaction of lithium or lithium fluoride clusters with boranes was investigated by laser desorption/ionization mass spectrometry (LDI MS). The preliminary results have shown that the negative mode LDI mass spectra of the suspension of LiF/B (1:3) in deionized water include Li2(BH18) - , LiF2(BH3) - , LiB2(BH3)2 -  LiF2LiB(BH4)2 -  ions. The reducing the boron content in the LiF/B system (1:1) results in a little changed mass spectrum. The intensities of Li2(BH18) -  and LiF2(BH3) -  decrease, while two other ions show a slightly changed composition: Li2F(B3H2) -  and LiF2(BH5)3 - . The results show that the Li2 and “superhalogen” LiF2 clusters can interact with boranes. In both cases, the most intense ions were complexes between “superhalogen”-LiF2 and boranes.
PB  - Beograd : Savez mašinskih i elektrotehničk ihinženjera i tehničara Srbije (SMEITS) : Društvo za obnovljive izvore električne energije
C3  - 11th International Conference on Renewable Electrical Power Sources : Proceedings
T1  - Ispitivanje LIF/B sistema korišćenjem negativnog moda LDI MS: mogući sistem za skladištenje vodonika
T1  - Investigation of LIF/B system using the negative mode LDI MS: a possible hydrogen storage system
SP  - 115
EP  - 118
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12570
ER  - 

@conference{
author = "Veljković, Filip and Janković, Bojan and Stajčić, Ivana and Stoiljković, Milovan and Janković, Marija and Kapuran, Đorđe and Veličković, Suzana",
year = "2023",
abstract = "Mnogi teorijski proračuni su pokazali da su litijumom dekorisni borani (BxHy) ili klasteri bora (Bn) potencijalni materijali za skladištenje vodonika. Pored toga, pokazalo se da klasteri litijumfluorida poboljšavaju kapacitet skladištenja vodonika bolje od samog litijuma. Međutim, broj eksperimentalnih studija je mnogo manji. Zbog toga je u ovom radu ispitivana mogućnost interakcije klastera litijuma ili litijumfluorida sa boranima, metodom laserske desorpcione/jonizacione masenespektrometrije (LDI MS). Preliminarni rezultati su pokazali da negativni mod LDI maseni spektri suspenzije LiF/B (1:3) u dejonizovanoj vodi sadrži Li2(BH18) - , LiF2(BH3) - , LiB2(BH3)2 - , LiF2LiB(BH4)2 - jone. Smanjenje sadržaja bora u LiF/B sistemu (1:1) rezultira malo izmenjenim masenim spektrom. Intenzitet Li2(BH18) - i LiF2(BH3) - opada, dok druga dva jona pokazuju blago izmenjen sastav: Li2F(B3H2) - i LiF2(BH5)3 - . Rezultati pokazuju da klasteri Li2 i “superhalogen” LiF2 mogu da interaguju sa boranima. U oba slučaja, najintenzivniji joni su bili kompleksi između „superhalogena“-LiF2 i borana., Many theoretical calculations have shown that lithium decoration of borane (BxHy) or boron (Bn) clusters are potential materials for hydrogen storage. In addition, lithium fluoride clusters have been shown to improve hydrogen storage capacity better than lithium itself. However, the number of experimental studies is much smaller. Therefore, in this work, the possibility of interaction of lithium or lithium fluoride clusters with boranes was investigated by laser desorption/ionization mass spectrometry (LDI MS). The preliminary results have shown that the negative mode LDI mass spectra of the suspension of LiF/B (1:3) in deionized water include Li2(BH18) - , LiF2(BH3) - , LiB2(BH3)2 -  LiF2LiB(BH4)2 -  ions. The reducing the boron content in the LiF/B system (1:1) results in a little changed mass spectrum. The intensities of Li2(BH18) -  and LiF2(BH3) -  decrease, while two other ions show a slightly changed composition: Li2F(B3H2) -  and LiF2(BH5)3 - . The results show that the Li2 and “superhalogen” LiF2 clusters can interact with boranes. In both cases, the most intense ions were complexes between “superhalogen”-LiF2 and boranes.",
publisher = "Beograd : Savez mašinskih i elektrotehničk ihinženjera i tehničara Srbije (SMEITS) : Društvo za obnovljive izvore električne energije",
journal = "11th International Conference on Renewable Electrical Power Sources : Proceedings",
title = "Ispitivanje LIF/B sistema korišćenjem negativnog moda LDI MS: mogući sistem za skladištenje vodonika, Investigation of LIF/B system using the negative mode LDI MS: a possible hydrogen storage system",
pages = "115-118",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12570"
}

Veljković, F., Janković, B., Stajčić, I., Stoiljković, M., Janković, M., Kapuran, Đ.,& Veličković, S.. (2023). Ispitivanje LIF/B sistema korišćenjem negativnog moda LDI MS: mogući sistem za skladištenje vodonika. in 11th International Conference on Renewable Electrical Power Sources : Proceedings
Beograd : Savez mašinskih i elektrotehničk ihinženjera i tehničara Srbije (SMEITS) : Društvo za obnovljive izvore električne energije., 115-118.
https://hdl.handle.net/21.15107/rcub_vinar_12570

Veljković F, Janković B, Stajčić I, Stoiljković M, Janković M, Kapuran Đ, Veličković S. Ispitivanje LIF/B sistema korišćenjem negativnog moda LDI MS: mogući sistem za skladištenje vodonika. in 11th International Conference on Renewable Electrical Power Sources : Proceedings. 2023;:115-118.
https://hdl.handle.net/21.15107/rcub_vinar_12570 .

Veljković, Filip, Janković, Bojan, Stajčić, Ivana, Stoiljković, Milovan, Janković, Marija, Kapuran, Đorđe, Veličković, Suzana, "Ispitivanje LIF/B sistema korišćenjem negativnog moda LDI MS: mogući sistem za skladištenje vodonika" in 11th International Conference on Renewable Electrical Power Sources : Proceedings (2023):115-118,
https://hdl.handle.net/21.15107/rcub_vinar_12570 .

TY  - CONF
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Waisi, Hadi
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Veljković, Filip
AU  - Janković, Bojan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12358
AB  - This paper presents the results for gross alpha and gross beta activity in leaves samples: Fig (Ficus carica), Vine (Vitis vinifera L.), and Apricot (Prunus armeniaca). Samples were collected in Iraq (Sulaymaniyah, Kurdistan region), and in the Serbia (Belgrade), in the summer 2018. The analysis was done in dried and milled samples as well as in the annealed samples, using gas flow proportional counter. Determination of gross alpha and gross beta activity presents rapid method, essential for the analysis of radioactivity in environmental samples. The gross alpha activity is defines as the total activity of alpha emitters, and originates from the decay chains of 238U and 232Th, which quantity depends on the geological and geographical formation of natural radionuclides. The main contributor to the gross beta activity is natural long-lived isotope 40K, as well as 210Pb, 228Ra. The gross beta measurements also include a contribution from anthropogenic radionuclides 137Cs and 90Sr. Radionuclides that emitting low-energy beta radiation (3 H and gaseous or volatile radionuclide such as iodine) cannot be detected by gross beta activity measurements.
PB  - Belgrade : University „Union-Nikola Tesla”
C3  - 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings
T1  - Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine)
SP  - 309
EP  - 314
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12358
ER  - 

@conference{
author = "Janković, Marija and Sarap, Nataša and Waisi, Hadi and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Veljković, Filip and Janković, Bojan",
year = "2023",
abstract = "This paper presents the results for gross alpha and gross beta activity in leaves samples: Fig (Ficus carica), Vine (Vitis vinifera L.), and Apricot (Prunus armeniaca). Samples were collected in Iraq (Sulaymaniyah, Kurdistan region), and in the Serbia (Belgrade), in the summer 2018. The analysis was done in dried and milled samples as well as in the annealed samples, using gas flow proportional counter. Determination of gross alpha and gross beta activity presents rapid method, essential for the analysis of radioactivity in environmental samples. The gross alpha activity is defines as the total activity of alpha emitters, and originates from the decay chains of 238U and 232Th, which quantity depends on the geological and geographical formation of natural radionuclides. The main contributor to the gross beta activity is natural long-lived isotope 40K, as well as 210Pb, 228Ra. The gross beta measurements also include a contribution from anthropogenic radionuclides 137Cs and 90Sr. Radionuclides that emitting low-energy beta radiation (3 H and gaseous or volatile radionuclide such as iodine) cannot be detected by gross beta activity measurements.",
publisher = "Belgrade : University „Union-Nikola Tesla”",
journal = "3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings",
title = "Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine)",
pages = "309-314",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12358"
}

Janković, M., Sarap, N., Waisi, H., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Veljković, F.,& Janković, B.. (2023). Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine). in 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings
Belgrade : University „Union-Nikola Tesla”., 309-314.
https://hdl.handle.net/21.15107/rcub_vinar_12358

Janković M, Sarap N, Waisi H, Krneta Nikolić J, Rajačić M, Vukanac I, Veljković F, Janković B. Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine). in 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings. 2023;:309-314.
https://hdl.handle.net/21.15107/rcub_vinar_12358 .

Janković, Marija, Sarap, Nataša, Waisi, Hadi, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Veljković, Filip, Janković, Bojan, "Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine)" in 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings (2023):309-314,
https://hdl.handle.net/21.15107/rcub_vinar_12358 .

TY  - JOUR
AU  - Jelić, Dijana
AU  - Đermanović, Mirjana
AU  - Marković, Anđela
AU  - Manić, Nebojša
AU  - Veličković, Suzana
AU  - Veljković, Filip M.
AU  - Janković, Bojan Ž.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10738
AB  - This work provides detailed mechanistic analysis of thermo-oxidative degradation behavior of vitamin D3—Ca (CaCO3 form) solid state supplement formulation. Analytical techniques such Attenuated Total Reflection Fourier-transform Infrared (ATR-FTIR) spectroscopy and Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS) were used for analysis of homogeneity of active pharmaceutical ingredients (APIs) throughout excipients contained within solid dosage forms. Information gained from MALDI-MS experiments was used to improve and better understand interactions present, later clearly disclosed through kinetic modeling. It was found that process mechanism proceeds via two single-step unbranched reactions and two steps of consecutive reactions. Key features include vitamin D3 meltings and degradation via hydrogen abstraction followed by addition of oxygen forming 1-hydroxy-vitamin D3 and further through its dehydration to 1-keto-vitamin D3. Identified product 1-hydroxy-vitamin D3 is substantial for enhancing the immune response of human body in fight against respiratory viruses. Another two degradation products, namely pyrocalciferol and isopyrocalciferol, produced by thermal isomerization at higher temperatures, were also identified. These vitamin epimers have crucial role in functioning of immune cells. Degradation process of mineral structure occurs through water molecules removal, forming anhydrous polymorph of CaCO3, where formation of solid (CaO) and gaseous (CO2) products participates in kinetically stabilized additive-functionalized amorphous CaCO3 crystallization. Confirmation of correctness of proposed degradation mechanism was verified by modulated dynamic (MD) predictions. Information obtained is valuable and suitable for safety evaluations of given supplement, but also could be applied for solid state forms, which are generally sensitive to oxidative conditions. © 2023, Akadémiai Kiadó, Budapest, Hungary.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Novel insight in thermo-oxidative kinetics of vitamin D-based supplement formulation using TG–DTG–DTA, ATR-FTIR and MALDI-MS techniques
VL  - 148
SP  - 4281
EP  - 4305
DO  - 10.1007/s10973-023-12017-3
ER  - 

@article{
author = "Jelić, Dijana and Đermanović, Mirjana and Marković, Anđela and Manić, Nebojša and Veličković, Suzana and Veljković, Filip M. and Janković, Bojan Ž.",
year = "2023",
abstract = "This work provides detailed mechanistic analysis of thermo-oxidative degradation behavior of vitamin D3—Ca (CaCO3 form) solid state supplement formulation. Analytical techniques such Attenuated Total Reflection Fourier-transform Infrared (ATR-FTIR) spectroscopy and Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS) were used for analysis of homogeneity of active pharmaceutical ingredients (APIs) throughout excipients contained within solid dosage forms. Information gained from MALDI-MS experiments was used to improve and better understand interactions present, later clearly disclosed through kinetic modeling. It was found that process mechanism proceeds via two single-step unbranched reactions and two steps of consecutive reactions. Key features include vitamin D3 meltings and degradation via hydrogen abstraction followed by addition of oxygen forming 1-hydroxy-vitamin D3 and further through its dehydration to 1-keto-vitamin D3. Identified product 1-hydroxy-vitamin D3 is substantial for enhancing the immune response of human body in fight against respiratory viruses. Another two degradation products, namely pyrocalciferol and isopyrocalciferol, produced by thermal isomerization at higher temperatures, were also identified. These vitamin epimers have crucial role in functioning of immune cells. Degradation process of mineral structure occurs through water molecules removal, forming anhydrous polymorph of CaCO3, where formation of solid (CaO) and gaseous (CO2) products participates in kinetically stabilized additive-functionalized amorphous CaCO3 crystallization. Confirmation of correctness of proposed degradation mechanism was verified by modulated dynamic (MD) predictions. Information obtained is valuable and suitable for safety evaluations of given supplement, but also could be applied for solid state forms, which are generally sensitive to oxidative conditions. © 2023, Akadémiai Kiadó, Budapest, Hungary.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Novel insight in thermo-oxidative kinetics of vitamin D-based supplement formulation using TG–DTG–DTA, ATR-FTIR and MALDI-MS techniques",
volume = "148",
pages = "4281-4305",
doi = "10.1007/s10973-023-12017-3"
}

Jelić, D., Đermanović, M., Marković, A., Manić, N., Veličković, S., Veljković, F. M.,& Janković, B. Ž.. (2023). Novel insight in thermo-oxidative kinetics of vitamin D-based supplement formulation using TG–DTG–DTA, ATR-FTIR and MALDI-MS techniques. in Journal of Thermal Analysis and Calorimetry, 148, 4281-4305.
https://doi.org/10.1007/s10973-023-12017-3

Jelić D, Đermanović M, Marković A, Manić N, Veličković S, Veljković FM, Janković BŽ. Novel insight in thermo-oxidative kinetics of vitamin D-based supplement formulation using TG–DTG–DTA, ATR-FTIR and MALDI-MS techniques. in Journal of Thermal Analysis and Calorimetry. 2023;148:4281-4305.
doi:10.1007/s10973-023-12017-3 .

Jelić, Dijana, Đermanović, Mirjana, Marković, Anđela, Manić, Nebojša, Veličković, Suzana, Veljković, Filip M., Janković, Bojan Ž., "Novel insight in thermo-oxidative kinetics of vitamin D-based supplement formulation using TG–DTG–DTA, ATR-FTIR and MALDI-MS techniques" in Journal of Thermal Analysis and Calorimetry, 148 (2023):4281-4305,
https://doi.org/10.1007/s10973-023-12017-3 . .

TY  - CONF
AU  - Bobić, Katarina
AU  - Guševac Stojanović, Ivana
AU  - Todorović, Ana
AU  - Veljković, Filip
AU  - Pejić, Snežana
AU  - Martinović, Jelena
AU  - Drakulić, Dunja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11060
AB  - Prolonged disturbance of cerebral blood flow causes metabolic insufficiency and neuronal hypofunction, for which there is still no adequate therapeutic strategy. In several animal models of neurodegenerative diseases, progesterone (P4), a potent gonadal steroid hormone, and its metabolites showed neuroprotective outcomes through reduction of oxidative stress and stabilization of membrane lipids and their downstream signalling. As P4 actions in rat striatum following permanent bilateral occlusion of both common carotid arteries are still uncertain, we investigated its capacity to reduce neuronal damage induced by permanent occlusion of both carotid arteries (2VO), focusing on several oxidative stress markers (end products of lipid peroxidation (LPP) and phosphatidylcholine (PC) to lysophosphatidylcholine (LPC) intensity ratio) in crude synaptosomal fraction. Adult male Wistar rats were divided into groups: control ‒ sham operated animals treated with vehicle (commercial flax oil, 1 mg/kg) and permanently occluded animals subjected to either vehicle (commercial flax oil, 1 mg/kg) or P4 (dissolved in commercial flax oil, 1.7 mg/kg). Animals were subcutaneously injected for 7 days and sacrificed 4 h following the last treatment. LPP levels were determined spectrophotometrically, while PC/LPC intensity ratio was estimated by mass spectrometer. Obtained results indicate that P4 treatment alleviates 2VO – induced prooxidative changes by decreasing LPP levels and elevating PC/LPC intensity ratio, and returning them closer to levels observed in controls. According to our findings, P4 treatment in cerebral hypoperfusion model, via targeting striatal cell lipid components and altering lipid profile, might be implicated in reduction of oxidative stress and promotion of protective environment.
PB  - Belgrade : Serbian Neurocardiological Society
C3  - 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade
T1  - Progesterone modulates striatal lipid profile in rat cerebral hypoperfusion model
SP  - 119
EP  - 119
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11060
ER  - 

@conference{
author = "Bobić, Katarina and Guševac Stojanović, Ivana and Todorović, Ana and Veljković, Filip and Pejić, Snežana and Martinović, Jelena and Drakulić, Dunja",
year = "2023",
abstract = "Prolonged disturbance of cerebral blood flow causes metabolic insufficiency and neuronal hypofunction, for which there is still no adequate therapeutic strategy. In several animal models of neurodegenerative diseases, progesterone (P4), a potent gonadal steroid hormone, and its metabolites showed neuroprotective outcomes through reduction of oxidative stress and stabilization of membrane lipids and their downstream signalling. As P4 actions in rat striatum following permanent bilateral occlusion of both common carotid arteries are still uncertain, we investigated its capacity to reduce neuronal damage induced by permanent occlusion of both carotid arteries (2VO), focusing on several oxidative stress markers (end products of lipid peroxidation (LPP) and phosphatidylcholine (PC) to lysophosphatidylcholine (LPC) intensity ratio) in crude synaptosomal fraction. Adult male Wistar rats were divided into groups: control ‒ sham operated animals treated with vehicle (commercial flax oil, 1 mg/kg) and permanently occluded animals subjected to either vehicle (commercial flax oil, 1 mg/kg) or P4 (dissolved in commercial flax oil, 1.7 mg/kg). Animals were subcutaneously injected for 7 days and sacrificed 4 h following the last treatment. LPP levels were determined spectrophotometrically, while PC/LPC intensity ratio was estimated by mass spectrometer. Obtained results indicate that P4 treatment alleviates 2VO – induced prooxidative changes by decreasing LPP levels and elevating PC/LPC intensity ratio, and returning them closer to levels observed in controls. According to our findings, P4 treatment in cerebral hypoperfusion model, via targeting striatal cell lipid components and altering lipid profile, might be implicated in reduction of oxidative stress and promotion of protective environment.",
publisher = "Belgrade : Serbian Neurocardiological Society",
journal = "8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade",
title = "Progesterone modulates striatal lipid profile in rat cerebral hypoperfusion model",
pages = "119-119",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11060"
}

Bobić, K., Guševac Stojanović, I., Todorović, A., Veljković, F., Pejić, S., Martinović, J.,& Drakulić, D.. (2023). Progesterone modulates striatal lipid profile in rat cerebral hypoperfusion model. in 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade
Belgrade : Serbian Neurocardiological Society., 119-119.
https://hdl.handle.net/21.15107/rcub_vinar_11060

Bobić K, Guševac Stojanović I, Todorović A, Veljković F, Pejić S, Martinović J, Drakulić D. Progesterone modulates striatal lipid profile in rat cerebral hypoperfusion model. in 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade. 2023;:119-119.
https://hdl.handle.net/21.15107/rcub_vinar_11060 .

Bobić, Katarina, Guševac Stojanović, Ivana, Todorović, Ana, Veljković, Filip, Pejić, Snežana, Martinović, Jelena, Drakulić, Dunja, "Progesterone modulates striatal lipid profile in rat cerebral hypoperfusion model" in 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade (2023):119-119,
https://hdl.handle.net/21.15107/rcub_vinar_11060 .

TY  - CONF
AU  - Stajčić, A.
AU  - Veljković, Filip
AU  - Veličković, Suzana
AU  - Janković, Marija
AU  - Janković, Bojan
AU  - Pijović, Milena
AU  - Stajčić, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12598
AB  - Polymers and polymer composites have wide application in every industrial field, and are a subject of continuous research from different scientific aspects [1,2]. However, most commercial polymers are oil refinery based products. Recently, due to a growing concern for oil depletion, researchers have been focused on modification of polymers, as well as reinforcements [3,4]. Epoxy resin is the most commonly used adhesive that can be improved with fiber or particle reinforcements, or by using chemical modifiers. Modifying agents from renewable resources show potential in replacing oil-based compounds, because of their abundance, low price and heterogeneous structure that offers number of reactive groups [5]. In our research, honey was used as a bio-based modifier for diglycidyl ether of bisphenolA (DGEBA) based epoxy resin, with the aim of investigating structural changes. MALDI-TOF mass spectrometry [6] was used as a powerful technique that is able to reveal presence of functional groups and modified epoxy resin structure. In this manner, successful chemical modification of epoxy resin was confirmed, which further opened the path for the investigation of honey potential as epoxy modifying agent.
PB  - Belgrade : Serbian Chemical Society
C3  - 9th Symposium Chemistry and Environmental Protection : Book of Abstracts
T1  - Structural characterization of bio-modified epoxy resin by using MALDI-TOF
SP  - 99
EP  - 99
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12598
ER  - 

@conference{
author = "Stajčić, A. and Veljković, Filip and Veličković, Suzana and Janković, Marija and Janković, Bojan and Pijović, Milena and Stajčić, Ivana",
year = "2023",
abstract = "Polymers and polymer composites have wide application in every industrial field, and are a subject of continuous research from different scientific aspects [1,2]. However, most commercial polymers are oil refinery based products. Recently, due to a growing concern for oil depletion, researchers have been focused on modification of polymers, as well as reinforcements [3,4]. Epoxy resin is the most commonly used adhesive that can be improved with fiber or particle reinforcements, or by using chemical modifiers. Modifying agents from renewable resources show potential in replacing oil-based compounds, because of their abundance, low price and heterogeneous structure that offers number of reactive groups [5]. In our research, honey was used as a bio-based modifier for diglycidyl ether of bisphenolA (DGEBA) based epoxy resin, with the aim of investigating structural changes. MALDI-TOF mass spectrometry [6] was used as a powerful technique that is able to reveal presence of functional groups and modified epoxy resin structure. In this manner, successful chemical modification of epoxy resin was confirmed, which further opened the path for the investigation of honey potential as epoxy modifying agent.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "9th Symposium Chemistry and Environmental Protection : Book of Abstracts",
title = "Structural characterization of bio-modified epoxy resin by using MALDI-TOF",
pages = "99-99",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12598"
}

Stajčić, A., Veljković, F., Veličković, S., Janković, M., Janković, B., Pijović, M.,& Stajčić, I.. (2023). Structural characterization of bio-modified epoxy resin by using MALDI-TOF. in 9th Symposium Chemistry and Environmental Protection : Book of Abstracts
Belgrade : Serbian Chemical Society., 99-99.
https://hdl.handle.net/21.15107/rcub_vinar_12598

Stajčić A, Veljković F, Veličković S, Janković M, Janković B, Pijović M, Stajčić I. Structural characterization of bio-modified epoxy resin by using MALDI-TOF. in 9th Symposium Chemistry and Environmental Protection : Book of Abstracts. 2023;:99-99.
https://hdl.handle.net/21.15107/rcub_vinar_12598 .

Stajčić, A., Veljković, Filip, Veličković, Suzana, Janković, Marija, Janković, Bojan, Pijović, Milena, Stajčić, Ivana, "Structural characterization of bio-modified epoxy resin by using MALDI-TOF" in 9th Symposium Chemistry and Environmental Protection : Book of Abstracts (2023):99-99,
https://hdl.handle.net/21.15107/rcub_vinar_12598 .

TY  - CONF
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Veljković, Filip
AU  - Pijović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12614
AB  - This paper considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of goji berry mesocarp as sugar-riched feedstock was investigated using simultaneous thermal analysis measurements in non-isothermal conditions. This work announced that pyrolysis of goji berry mesocarp represents a promising route to obtaining an important key platform chemical - 5-hydroxymethylfurfural (5-HMF). To establish the process mechanism, two kinetic approaches were used for kinetic parameters determination: first, Friedman’s and Vyazovkin’s model-free (inverse) methods supported by numerical optimization of the process, and second, the model-based (direct) method. Model-free results showed a complex evolution of activation energy with conversion, indicating a multi-step mechanism. It was found that autocatalytic dehydration of fructose (in the presence of Lewis acids) is responsible for the production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 K/min and 15.0 K/min) trigger the fructose autogenesis behavior which opens the transferability channel to glucose (substrate) engagement for 5-HMF theoretical high yield production. It was revealed that differences between kinetic parameters are a consequence of the change in the mechanism of glycosidic bond cleavage. The validity of the proposed reaction mechanism scheme and accuracy of kinetic parameters was confirmed by modulated dynamic predictions.
PB  - SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings
T1  - The kinetic study of fruit processing waste pyrolysis for efficient production of platform chemicals
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12614
ER  - 

@conference{
author = "Manić, Nebojša and Janković, Bojan and Veljković, Filip and Pijović, Milena",
year = "2023",
abstract = "This paper considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of goji berry mesocarp as sugar-riched feedstock was investigated using simultaneous thermal analysis measurements in non-isothermal conditions. This work announced that pyrolysis of goji berry mesocarp represents a promising route to obtaining an important key platform chemical - 5-hydroxymethylfurfural (5-HMF). To establish the process mechanism, two kinetic approaches were used for kinetic parameters determination: first, Friedman’s and Vyazovkin’s model-free (inverse) methods supported by numerical optimization of the process, and second, the model-based (direct) method. Model-free results showed a complex evolution of activation energy with conversion, indicating a multi-step mechanism. It was found that autocatalytic dehydration of fructose (in the presence of Lewis acids) is responsible for the production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 K/min and 15.0 K/min) trigger the fructose autogenesis behavior which opens the transferability channel to glucose (substrate) engagement for 5-HMF theoretical high yield production. It was revealed that differences between kinetic parameters are a consequence of the change in the mechanism of glycosidic bond cleavage. The validity of the proposed reaction mechanism scheme and accuracy of kinetic parameters was confirmed by modulated dynamic predictions.",
publisher = "SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems, Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings",
title = "The kinetic study of fruit processing waste pyrolysis for efficient production of platform chemicals",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12614"
}

Manić, N., Janković, B., Veljković, F.,& Pijović, M.. (2023). The kinetic study of fruit processing waste pyrolysis for efficient production of platform chemicals. in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings
SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems..
https://hdl.handle.net/21.15107/rcub_vinar_12614

Manić N, Janković B, Veljković F, Pijović M. The kinetic study of fruit processing waste pyrolysis for efficient production of platform chemicals. in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12614 .

Manić, Nebojša, Janković, Bojan, Veljković, Filip, Pijović, Milena, "The kinetic study of fruit processing waste pyrolysis for efficient production of platform chemicals" in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12614 .

TY  - JOUR
AU  - Grigorov, Ilijana
AU  - Pejić, Snežana
AU  - Todorović, Ana
AU  - Drakulić, Dunja
AU  - Veljković, Filip
AU  - Miletić Vukajlović, Jadranka
AU  - Bobić, Katarina
AU  - Soldatović, Ivan
AU  - Đurašević, Siniša
AU  - Jasnić, Nebojša
AU  - Stanković, Sanja
AU  - Glumac, Sofija
AU  - Mihailović-Vučinić, Violeta
AU  - Milenković, Branislava
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11550
AB  - The careful monitoring of patients with mild/moderate COVID-19 is of particular importance because of the rapid progression of complications associated with COVID-19. For prognostic reasons and for the economic management of health care resources, additional biomarkers need to be identified, and their monitoring can conceivably be performed in the early stages of the disease. In this retrospective cross-sectional study, we found that serum concentrations of high-mobility group box 1 (HMGB1) and heme oxygenase-1 (HO-1), at the time of hospital admission, could be useful biomarkers for COVID-19 management. The study included 160 randomly selected recovered patients with mild to moderate COVID-19 on admission. Compared with healthy controls, serum HMGB1 and HO-1 levels increased by 487.6 pg/mL versus 43.1 pg/mL and 1497.7 pg/mL versus 756.1 pg/mL, respectively. Serum HO-1 correlated significantly with serum HMGB1, oxidative stress parameters (malondialdehyde (MDA), the phosphatidylcholine/lysophosphatidylcholine ratio (PC/LPC), the ratio of reduced and oxidative glutathione (GSH/GSSG)), and anti-inflammatory acute phase proteins (ferritin, haptoglobin). Increased heme catabolism/hemolysis were not detected. We hypothesize that the increase in HO-1 in the early phase of COVID-19 disease is likely to have a survival benefit by providing protection against oxidative stress and inflammation, whereas the level of HMGB1 increase reflects the activity of the innate immune system and represents levels within which the disease can be kept under control.
T2  - International Journal of Molecular Sciences
T1  - Serum High-Mobility Group Box 1 and Heme Oxygenase-1 as Biomarkers in COVID-19 Patients at Hospital Admission
VL  - 24
IS  - 17
SP  - 13164
DO  - 10.3390/ijms241713164
ER  - 

@article{
author = "Grigorov, Ilijana and Pejić, Snežana and Todorović, Ana and Drakulić, Dunja and Veljković, Filip and Miletić Vukajlović, Jadranka and Bobić, Katarina and Soldatović, Ivan and Đurašević, Siniša and Jasnić, Nebojša and Stanković, Sanja and Glumac, Sofija and Mihailović-Vučinić, Violeta and Milenković, Branislava",
year = "2023",
abstract = "The careful monitoring of patients with mild/moderate COVID-19 is of particular importance because of the rapid progression of complications associated with COVID-19. For prognostic reasons and for the economic management of health care resources, additional biomarkers need to be identified, and their monitoring can conceivably be performed in the early stages of the disease. In this retrospective cross-sectional study, we found that serum concentrations of high-mobility group box 1 (HMGB1) and heme oxygenase-1 (HO-1), at the time of hospital admission, could be useful biomarkers for COVID-19 management. The study included 160 randomly selected recovered patients with mild to moderate COVID-19 on admission. Compared with healthy controls, serum HMGB1 and HO-1 levels increased by 487.6 pg/mL versus 43.1 pg/mL and 1497.7 pg/mL versus 756.1 pg/mL, respectively. Serum HO-1 correlated significantly with serum HMGB1, oxidative stress parameters (malondialdehyde (MDA), the phosphatidylcholine/lysophosphatidylcholine ratio (PC/LPC), the ratio of reduced and oxidative glutathione (GSH/GSSG)), and anti-inflammatory acute phase proteins (ferritin, haptoglobin). Increased heme catabolism/hemolysis were not detected. We hypothesize that the increase in HO-1 in the early phase of COVID-19 disease is likely to have a survival benefit by providing protection against oxidative stress and inflammation, whereas the level of HMGB1 increase reflects the activity of the innate immune system and represents levels within which the disease can be kept under control.",
journal = "International Journal of Molecular Sciences",
title = "Serum High-Mobility Group Box 1 and Heme Oxygenase-1 as Biomarkers in COVID-19 Patients at Hospital Admission",
volume = "24",
number = "17",
pages = "13164",
doi = "10.3390/ijms241713164"
}

Grigorov, I., Pejić, S., Todorović, A., Drakulić, D., Veljković, F., Miletić Vukajlović, J., Bobić, K., Soldatović, I., Đurašević, S., Jasnić, N., Stanković, S., Glumac, S., Mihailović-Vučinić, V.,& Milenković, B.. (2023). Serum High-Mobility Group Box 1 and Heme Oxygenase-1 as Biomarkers in COVID-19 Patients at Hospital Admission. in International Journal of Molecular Sciences, 24(17), 13164.
https://doi.org/10.3390/ijms241713164

Grigorov I, Pejić S, Todorović A, Drakulić D, Veljković F, Miletić Vukajlović J, Bobić K, Soldatović I, Đurašević S, Jasnić N, Stanković S, Glumac S, Mihailović-Vučinić V, Milenković B. Serum High-Mobility Group Box 1 and Heme Oxygenase-1 as Biomarkers in COVID-19 Patients at Hospital Admission. in International Journal of Molecular Sciences. 2023;24(17):13164.
doi:10.3390/ijms241713164 .

Grigorov, Ilijana, Pejić, Snežana, Todorović, Ana, Drakulić, Dunja, Veljković, Filip, Miletić Vukajlović, Jadranka, Bobić, Katarina, Soldatović, Ivan, Đurašević, Siniša, Jasnić, Nebojša, Stanković, Sanja, Glumac, Sofija, Mihailović-Vučinić, Violeta, Milenković, Branislava, "Serum High-Mobility Group Box 1 and Heme Oxygenase-1 as Biomarkers in COVID-19 Patients at Hospital Admission" in International Journal of Molecular Sciences, 24, no. 17 (2023):13164,
https://doi.org/10.3390/ijms241713164 . .

TY  - JOUR
AU  - Stajčić, Ivana
AU  - Veljković, Filip
AU  - Petrović, Miloš
AU  - Veličković, Suzana
AU  - Radojević, Vesna
AU  - Vlahović, Branislav
AU  - Stajčić, Aleksandar
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11093
AB  - High performance polymers with bio-based modifiers are promising materials in terms of applications and environmental impact. In this work, raw acacia honey was used as a bio-modifier for epoxy resin, as a rich source of functional groups. The addition of honey resulted in the formation of highly stable structures that were observed in scanning electron microscopy images as separate phases at the fracture surface, which were involved in the toughening of the resin. Structural changes were investigated, revealing the formation of a new aldehyde carbonyl group. Thermal analysis confirmed the formation of products that were stable up to 600 °C, with a glass transition temperature of 228 °C. An energy-controlled impact test was performed to compare the absorbed impact energy of bio-modified epoxy containing different amounts of honey with unmodified epoxy resin. The results showed that bio-modified epoxy resin with 3 wt% of acacia honey could withstand several impacts with full recovery, while unmodified epoxy resin broke at first impact. The absorbed energy at first impact was 2.5 times higher for bio-modified epoxy resin than it was for unmodified epoxy resin. In this manner, by using simple preparation and a raw material that is abundant in nature, a novel epoxy with high thermal and impact resistance was obtained, opening a path for further research in this field.
T2  - Polymers
T1  - Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey
VL  - 15
IS  - 10
SP  - 2261
DO  - 10.3390/polym15102261
ER  - 

@article{
author = "Stajčić, Ivana and Veljković, Filip and Petrović, Miloš and Veličković, Suzana and Radojević, Vesna and Vlahović, Branislav and Stajčić, Aleksandar",
year = "2023",
abstract = "High performance polymers with bio-based modifiers are promising materials in terms of applications and environmental impact. In this work, raw acacia honey was used as a bio-modifier for epoxy resin, as a rich source of functional groups. The addition of honey resulted in the formation of highly stable structures that were observed in scanning electron microscopy images as separate phases at the fracture surface, which were involved in the toughening of the resin. Structural changes were investigated, revealing the formation of a new aldehyde carbonyl group. Thermal analysis confirmed the formation of products that were stable up to 600 °C, with a glass transition temperature of 228 °C. An energy-controlled impact test was performed to compare the absorbed impact energy of bio-modified epoxy containing different amounts of honey with unmodified epoxy resin. The results showed that bio-modified epoxy resin with 3 wt% of acacia honey could withstand several impacts with full recovery, while unmodified epoxy resin broke at first impact. The absorbed energy at first impact was 2.5 times higher for bio-modified epoxy resin than it was for unmodified epoxy resin. In this manner, by using simple preparation and a raw material that is abundant in nature, a novel epoxy with high thermal and impact resistance was obtained, opening a path for further research in this field.",
journal = "Polymers",
title = "Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey",
volume = "15",
number = "10",
pages = "2261",
doi = "10.3390/polym15102261"
}

Stajčić, I., Veljković, F., Petrović, M., Veličković, S., Radojević, V., Vlahović, B.,& Stajčić, A.. (2023). Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey. in Polymers, 15(10), 2261.
https://doi.org/10.3390/polym15102261

Stajčić I, Veljković F, Petrović M, Veličković S, Radojević V, Vlahović B, Stajčić A. Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey. in Polymers. 2023;15(10):2261.
doi:10.3390/polym15102261 .

Stajčić, Ivana, Veljković, Filip, Petrović, Miloš, Veličković, Suzana, Radojević, Vesna, Vlahović, Branislav, Stajčić, Aleksandar, "Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey" in Polymers, 15, no. 10 (2023):2261,
https://doi.org/10.3390/polym15102261 . .

TY  - CONF
AU  - Janković, Marija
AU  - Veljković, Filip
AU  - Sarap, Nataša
AU  - Veličković, Suzana
AU  - Stajčić, Ivana
AU  - Šljivić-Ivanović, Marija
AU  - Janković, Bojan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12354
AB  - This paper presents application of a nuclear technique for the analysis of radioactivity in supplements using gas proportional counter as well as application of analytical technique Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS) in order to characterize the radioactivity contents and stability of the chemical structures  for commercial supplements. Gas proportional counter enables to determination of gross alpha and gross beta activity in the environmental samples, where they are present as ultra trace elements. Also, MALDI-MS method is used, since it represents an excellent analytical technique for detecting large number of biologically important molecules, such as commercial supplements.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
T1  - Analysis of commercial supplements using a nuclear and MALDI-MS techniques
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12354
ER  - 

@conference{
author = "Janković, Marija and Veljković, Filip and Sarap, Nataša and Veličković, Suzana and Stajčić, Ivana and Šljivić-Ivanović, Marija and Janković, Bojan",
year = "2023",
abstract = "This paper presents application of a nuclear technique for the analysis of radioactivity in supplements using gas proportional counter as well as application of analytical technique Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS) in order to characterize the radioactivity contents and stability of the chemical structures  for commercial supplements. Gas proportional counter enables to determination of gross alpha and gross beta activity in the environmental samples, where they are present as ultra trace elements. Also, MALDI-MS method is used, since it represents an excellent analytical technique for detecting large number of biologically important molecules, such as commercial supplements.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings",
title = "Analysis of commercial supplements using a nuclear and MALDI-MS techniques",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12354"
}

Janković, M., Veljković, F., Sarap, N., Veličković, S., Stajčić, I., Šljivić-Ivanović, M.,& Janković, B.. (2023). Analysis of commercial supplements using a nuclear and MALDI-MS techniques. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
Belgrade : ETRAN Society..
https://hdl.handle.net/21.15107/rcub_vinar_12354

Janković M, Veljković F, Sarap N, Veličković S, Stajčić I, Šljivić-Ivanović M, Janković B. Analysis of commercial supplements using a nuclear and MALDI-MS techniques. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12354 .

Janković, Marija, Veljković, Filip, Sarap, Nataša, Veličković, Suzana, Stajčić, Ivana, Šljivić-Ivanović, Marija, Janković, Bojan, "Analysis of commercial supplements using a nuclear and MALDI-MS techniques" in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12354 .

TY  - CONF
AU  - Veljković, Filip
AU  - Drakulić, Dunja
AU  - Todorović, Ana
AU  - Pejić, Snežana
AU  - Bobić, Katarina
AU  - Stajčić, Ivana
AU  - Pajović, Snežana
AU  - Veličković, Suzana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12663
AB  - It is known that the “superalkali” cluster Li2F can significantly improve the hydrogen storage capabilities in carbon materials; boron compounds play a similar role. However, the possibility of interactions of lithium fluoride clusters with boron and hydrogen has not been investigated so far. In this work, a laser desorption/ionization mass spectrometry (LDI MS) was used for this purpose. Preliminary results showed that the interaction between the “superalkali” Li3F cluster, boron and six hydrogen atoms is possible; the ion Li3FBH6+ was detected. Non-stoichiometric clusters of lithium fluoride can also combine with boron and hydrogen in the following manner: Li5F2BH5+ Li5F3BH2+ Li4F5BH4+ Li6F2B6H+, and Li8F6H+.
PB  - Kragujevac : Institute for Information Technologies, University of Kragujevac
C3  - ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings
T1  - Investigation of the possibility of interaction between lithium fluoride clusters and boron using LDI MS
SP  - 176
EP  - 179
DO  - 10.46793/ICCBI23.176V
ER  - 

@conference{
author = "Veljković, Filip and Drakulić, Dunja and Todorović, Ana and Pejić, Snežana and Bobić, Katarina and Stajčić, Ivana and Pajović, Snežana and Veličković, Suzana",
year = "2023",
abstract = "It is known that the “superalkali” cluster Li2F can significantly improve the hydrogen storage capabilities in carbon materials; boron compounds play a similar role. However, the possibility of interactions of lithium fluoride clusters with boron and hydrogen has not been investigated so far. In this work, a laser desorption/ionization mass spectrometry (LDI MS) was used for this purpose. Preliminary results showed that the interaction between the “superalkali” Li3F cluster, boron and six hydrogen atoms is possible; the ion Li3FBH6+ was detected. Non-stoichiometric clusters of lithium fluoride can also combine with boron and hydrogen in the following manner: Li5F2BH5+ Li5F3BH2+ Li4F5BH4+ Li6F2B6H+, and Li8F6H+.",
publisher = "Kragujevac : Institute for Information Technologies, University of Kragujevac",
journal = "ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings",
title = "Investigation of the possibility of interaction between lithium fluoride clusters and boron using LDI MS",
pages = "176-179",
doi = "10.46793/ICCBI23.176V"
}

Veljković, F., Drakulić, D., Todorović, A., Pejić, S., Bobić, K., Stajčić, I., Pajović, S.,& Veličković, S.. (2023). Investigation of the possibility of interaction between lithium fluoride clusters and boron using LDI MS. in ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings
Kragujevac : Institute for Information Technologies, University of Kragujevac., 176-179.
https://doi.org/10.46793/ICCBI23.176V

Veljković F, Drakulić D, Todorović A, Pejić S, Bobić K, Stajčić I, Pajović S, Veličković S. Investigation of the possibility of interaction between lithium fluoride clusters and boron using LDI MS. in ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings. 2023;:176-179.
doi:10.46793/ICCBI23.176V .

Veljković, Filip, Drakulić, Dunja, Todorović, Ana, Pejić, Snežana, Bobić, Katarina, Stajčić, Ivana, Pajović, Snežana, Veličković, Suzana, "Investigation of the possibility of interaction between lithium fluoride clusters and boron using LDI MS" in ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings (2023):176-179,
https://doi.org/10.46793/ICCBI23.176V . .

TY  - CONF
AU  - Guševac Stojanović, Ivana
AU  - Dragić, Milorad
AU  - Zarić Kontić, Marina
AU  - Martinović, Jelena
AU  - Mitrović, Nataša
AU  - Stojanović, Zoran
AU  - Veljković, Filip
AU  - Martinović, D.
AU  - Grković, Ivana
AU  - Drakulić, Dunja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11058
AB  - Cerebral hypoperfusion (CH) is recognised as a contributor to various impairments characteristic for elderly population and patients with vascular dementia and Alzheimer’s disease. CH-induced brain damage is linked with oxidative stress in the cells that can cause DNA fragmentation and cell death, reflected through a change in cells’ morphology. Our study investigated the beneficial effects of progesterone (P4), a hormone with neuroprotective properties, against CH-induced oxidative stress and neurodegenerative pathologies in rat prefrontal cortex (PFC). For the purpose of the experiment, adult male Wistar rats were dived into groups: (I) animals subjected to permanent bilateral occlusion of common carotid arteries (2VO) treated with vehicle (commercial flax oil, 1 mg/kg/day), (II) animals subjected to 2VO treated with P4 dissolved in vehicle (1.7 mg/kg/day) and (III) animals subjected to sham operation treated with vehicle. Animals were sacrificed after 7 subcutaneous treatments. Levels of pro-/antioxidant balance (PAB) and DNA fragmentation along with cell morphology were estimated by well-defined methods. The results revealed that P4 administration moderated CH-induced impairments in PFC, not only by decreasing PAB level and diminishing DNA fragmentation, but also preserving the cell morphology reflected through clearly defined cell bodies, with round nuclei, prominent nucleolus and visible Nissl bodies in layer III. Obtained results point out that P4 is able to attenuate CH-induced pro-oxidant state and subsequent changes in PFC. This hormone holds promise as an effective agent for the CH treatment, still, its specific actions remain to be discovered.
PB  - Belgrade : Serbian Neuroscience Society
C3  - 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade
T1  - Progesterone treatment preserves cortical pro-/antioxidant balance, DNA integrity and cell morphology in rat cerebral hypoperfusion model
SP  - 117
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11058
ER  - 

@conference{
author = "Guševac Stojanović, Ivana and Dragić, Milorad and Zarić Kontić, Marina and Martinović, Jelena and Mitrović, Nataša and Stojanović, Zoran and Veljković, Filip and Martinović, D. and Grković, Ivana and Drakulić, Dunja",
year = "2023",
abstract = "Cerebral hypoperfusion (CH) is recognised as a contributor to various impairments characteristic for elderly population and patients with vascular dementia and Alzheimer’s disease. CH-induced brain damage is linked with oxidative stress in the cells that can cause DNA fragmentation and cell death, reflected through a change in cells’ morphology. Our study investigated the beneficial effects of progesterone (P4), a hormone with neuroprotective properties, against CH-induced oxidative stress and neurodegenerative pathologies in rat prefrontal cortex (PFC). For the purpose of the experiment, adult male Wistar rats were dived into groups: (I) animals subjected to permanent bilateral occlusion of common carotid arteries (2VO) treated with vehicle (commercial flax oil, 1 mg/kg/day), (II) animals subjected to 2VO treated with P4 dissolved in vehicle (1.7 mg/kg/day) and (III) animals subjected to sham operation treated with vehicle. Animals were sacrificed after 7 subcutaneous treatments. Levels of pro-/antioxidant balance (PAB) and DNA fragmentation along with cell morphology were estimated by well-defined methods. The results revealed that P4 administration moderated CH-induced impairments in PFC, not only by decreasing PAB level and diminishing DNA fragmentation, but also preserving the cell morphology reflected through clearly defined cell bodies, with round nuclei, prominent nucleolus and visible Nissl bodies in layer III. Obtained results point out that P4 is able to attenuate CH-induced pro-oxidant state and subsequent changes in PFC. This hormone holds promise as an effective agent for the CH treatment, still, its specific actions remain to be discovered.",
publisher = "Belgrade : Serbian Neuroscience Society",
journal = "8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade",
title = "Progesterone treatment preserves cortical pro-/antioxidant balance, DNA integrity and cell morphology in rat cerebral hypoperfusion model",
pages = "117",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11058"
}

Guševac Stojanović, I., Dragić, M., Zarić Kontić, M., Martinović, J., Mitrović, N., Stojanović, Z., Veljković, F., Martinović, D., Grković, I.,& Drakulić, D.. (2023). Progesterone treatment preserves cortical pro-/antioxidant balance, DNA integrity and cell morphology in rat cerebral hypoperfusion model. in 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade
Belgrade : Serbian Neuroscience Society., 117.
https://hdl.handle.net/21.15107/rcub_vinar_11058

Guševac Stojanović I, Dragić M, Zarić Kontić M, Martinović J, Mitrović N, Stojanović Z, Veljković F, Martinović D, Grković I, Drakulić D. Progesterone treatment preserves cortical pro-/antioxidant balance, DNA integrity and cell morphology in rat cerebral hypoperfusion model. in 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade. 2023;:117.
https://hdl.handle.net/21.15107/rcub_vinar_11058 .

Guševac Stojanović, Ivana, Dragić, Milorad, Zarić Kontić, Marina, Martinović, Jelena, Mitrović, Nataša, Stojanović, Zoran, Veljković, Filip, Martinović, D., Grković, Ivana, Drakulić, Dunja, "Progesterone treatment preserves cortical pro-/antioxidant balance, DNA integrity and cell morphology in rat cerebral hypoperfusion model" in 8th Congress of Serbian neuroscience society with international participation : the book of abstracts; 31 May – 2 June; Belgrade (2023):117,
https://hdl.handle.net/21.15107/rcub_vinar_11058 .

TY  - JOUR
AU  - Janković, Bojan
AU  - Papović, Snežana
AU  - Vraneš, Milan
AU  - Knežević, Teodora
AU  - Pržulj, Sanja
AU  - Zeljković, Saša
AU  - Veličković, Suzana
AU  - Veljković, Filip
AU  - Jelić, Dijana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10850
AB  - A powdered PVA/CaCO3 nanocomposite carrier was successfully fabricated for effective loading of small bioactive molecules, such as vitamin D3 (VD3). Generation of, namely, VD3/PVA/CaCO3 nanocomposite scaffold was carried out through an adsorption mechanism as a loading route of an active compound onto a powder carrier. Developed composites were characterized by structural, morphological and thermal analyses techniques, such as X-ray powder diffraction (XRPD), Fourier-transform infrared (FTIR) spectroscopy, MALDI (matrix-assisted laser desorption/ionization) – mass spectrometry (MS), Brunauer–Emmett–Teller (BET) – NLDFT (Non-local Density Functional Theory) method, scanning electron microscopy (SEM), simultaneous TG-DTG and coupled TG-MS. XRD results showed that the average crystallite size of synthesized VD3/PVA/CaCO3 amounts 32.93 nm exhibiting microstrain presence, where PVA incorporation causes non-uniform calcite lattice distortion. SEM analysis showed that VD3/PVA/CaCO3 nanocomposite scaffold contains agglomerated rhomboidal calcite particles with VD3 particles of irregular shapes attached. Fabricated VD3/PVA/CaCO3 clearly showed the existence of calcite “staircase” dendrites as the aftermath of inhibiting the effect of impurities on the growth of crystals in normal directions. It was determined that the decomposition of PVA additionally enhances the thermal stability of VD3, through the stabilization effect by acting on van der Waal’s forces during polyene formation, confirmed by MALDI-TOF MS results.
T2  - Journal of Materials Science
T1  - Biomineral nanocomposite scaffold (CaCO3/PVA based) carrier for improved stability of vitamin D3: characterization analysis and material properties
VL  - 58
IS  - 15
SP  - 6580
EP  - 6601
DO  - 10.1007/s10853-023-08453-z
ER  - 

@article{
author = "Janković, Bojan and Papović, Snežana and Vraneš, Milan and Knežević, Teodora and Pržulj, Sanja and Zeljković, Saša and Veličković, Suzana and Veljković, Filip and Jelić, Dijana",
year = "2023",
abstract = "A powdered PVA/CaCO3 nanocomposite carrier was successfully fabricated for effective loading of small bioactive molecules, such as vitamin D3 (VD3). Generation of, namely, VD3/PVA/CaCO3 nanocomposite scaffold was carried out through an adsorption mechanism as a loading route of an active compound onto a powder carrier. Developed composites were characterized by structural, morphological and thermal analyses techniques, such as X-ray powder diffraction (XRPD), Fourier-transform infrared (FTIR) spectroscopy, MALDI (matrix-assisted laser desorption/ionization) – mass spectrometry (MS), Brunauer–Emmett–Teller (BET) – NLDFT (Non-local Density Functional Theory) method, scanning electron microscopy (SEM), simultaneous TG-DTG and coupled TG-MS. XRD results showed that the average crystallite size of synthesized VD3/PVA/CaCO3 amounts 32.93 nm exhibiting microstrain presence, where PVA incorporation causes non-uniform calcite lattice distortion. SEM analysis showed that VD3/PVA/CaCO3 nanocomposite scaffold contains agglomerated rhomboidal calcite particles with VD3 particles of irregular shapes attached. Fabricated VD3/PVA/CaCO3 clearly showed the existence of calcite “staircase” dendrites as the aftermath of inhibiting the effect of impurities on the growth of crystals in normal directions. It was determined that the decomposition of PVA additionally enhances the thermal stability of VD3, through the stabilization effect by acting on van der Waal’s forces during polyene formation, confirmed by MALDI-TOF MS results.",
journal = "Journal of Materials Science",
title = "Biomineral nanocomposite scaffold (CaCO3/PVA based) carrier for improved stability of vitamin D3: characterization analysis and material properties",
volume = "58",
number = "15",
pages = "6580-6601",
doi = "10.1007/s10853-023-08453-z"
}

Janković, B., Papović, S., Vraneš, M., Knežević, T., Pržulj, S., Zeljković, S., Veličković, S., Veljković, F.,& Jelić, D.. (2023). Biomineral nanocomposite scaffold (CaCO3/PVA based) carrier for improved stability of vitamin D3: characterization analysis and material properties. in Journal of Materials Science, 58(15), 6580-6601.
https://doi.org/10.1007/s10853-023-08453-z

Janković B, Papović S, Vraneš M, Knežević T, Pržulj S, Zeljković S, Veličković S, Veljković F, Jelić D. Biomineral nanocomposite scaffold (CaCO3/PVA based) carrier for improved stability of vitamin D3: characterization analysis and material properties. in Journal of Materials Science. 2023;58(15):6580-6601.
doi:10.1007/s10853-023-08453-z .

Janković, Bojan, Papović, Snežana, Vraneš, Milan, Knežević, Teodora, Pržulj, Sanja, Zeljković, Saša, Veličković, Suzana, Veljković, Filip, Jelić, Dijana, "Biomineral nanocomposite scaffold (CaCO3/PVA based) carrier for improved stability of vitamin D3: characterization analysis and material properties" in Journal of Materials Science, 58, no. 15 (2023):6580-6601,
https://doi.org/10.1007/s10853-023-08453-z . .

TY  - CONF
AU  - Bobić, Katarina
AU  - Todorović, Ana
AU  - Pejić, Snežana
AU  - Veljković, Filip
AU  - Veličković, Suzana
AU  - Pajović, Snežana B.
AU  - Drakulić, Dunja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12389
AB  - Titanium dioxide nanoparticles (TiO2NPs) are widely used in pharmaceutics, food products and cosmetics. Besides numerous beneficial outcomes, they also induce toxic effects in different organs, including the eyes. The recent findings report that some surface modifications can attenuate TiO2NPs toxicity. Thus, the aim of this study was to compare the effects of acute oral treatment with commercially available, bare TiO2NPs and TiO2NPs surface modified with salicylic acid (SA-TiO2NPs) using adult Wistar rats as model organisms. Control animals were gastrically intubated with vehicle (0.01 M HCl), while others were treated with either TiO2NPs or SA-TiO2NPs (1000mg/kg dissolved in vehicle). Afterward, the mortality rate as the acute toxicity parameter and parameters of neurological function were assessed. Animals were sacrificed on the 14th day following treatment. In the eye crude synaptosomal fraction, the effects of treatments on oxidative stress markers such as prooxidant/antioxidant balance (PAB) and lipid peroxidation (LPO) were compared. According to the obtained results, the mortality was 0 in all experimental groups. TiO2NPs and SA-TiO2NPs treatments displayed mild effects on spontaneous activity and pacing and had no impact on the visual placing reflex. Moreover, TiO2NPs and SA-TiO2NPs exposure significantly elevated PAB levels, when compared to controls. Animals treated with SA-TiO2NPs had similar LPO levels as controls, while in TiO2NPs group LPO levels were significantly increased. The presented data showed that both examined nanoparticles exerted similar outcomes referring to most of the investigated parameters, however, surface binding of SA decreased the level of LPO and thus, mitigated some of TiO2NPs toxicity in the eyes.
PB  - Kragujevac : Institute for Information Technologies, University of Kragujevac
C3  - ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings
T1  - TiO2 nanoparticles and TiO2 nanoparticles surface modified with salicylic acid affect neurological functions and oxidative stress markers in the eyes of adult rats
SP  - 499
EP  - 502
DO  - 10.46793/ICCBI23.499B
ER  - 

@conference{
author = "Bobić, Katarina and Todorović, Ana and Pejić, Snežana and Veljković, Filip and Veličković, Suzana and Pajović, Snežana B. and Drakulić, Dunja",
year = "2023",
abstract = "Titanium dioxide nanoparticles (TiO2NPs) are widely used in pharmaceutics, food products and cosmetics. Besides numerous beneficial outcomes, they also induce toxic effects in different organs, including the eyes. The recent findings report that some surface modifications can attenuate TiO2NPs toxicity. Thus, the aim of this study was to compare the effects of acute oral treatment with commercially available, bare TiO2NPs and TiO2NPs surface modified with salicylic acid (SA-TiO2NPs) using adult Wistar rats as model organisms. Control animals were gastrically intubated with vehicle (0.01 M HCl), while others were treated with either TiO2NPs or SA-TiO2NPs (1000mg/kg dissolved in vehicle). Afterward, the mortality rate as the acute toxicity parameter and parameters of neurological function were assessed. Animals were sacrificed on the 14th day following treatment. In the eye crude synaptosomal fraction, the effects of treatments on oxidative stress markers such as prooxidant/antioxidant balance (PAB) and lipid peroxidation (LPO) were compared. According to the obtained results, the mortality was 0 in all experimental groups. TiO2NPs and SA-TiO2NPs treatments displayed mild effects on spontaneous activity and pacing and had no impact on the visual placing reflex. Moreover, TiO2NPs and SA-TiO2NPs exposure significantly elevated PAB levels, when compared to controls. Animals treated with SA-TiO2NPs had similar LPO levels as controls, while in TiO2NPs group LPO levels were significantly increased. The presented data showed that both examined nanoparticles exerted similar outcomes referring to most of the investigated parameters, however, surface binding of SA decreased the level of LPO and thus, mitigated some of TiO2NPs toxicity in the eyes.",
publisher = "Kragujevac : Institute for Information Technologies, University of Kragujevac",
journal = "ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings",
title = "TiO2 nanoparticles and TiO2 nanoparticles surface modified with salicylic acid affect neurological functions and oxidative stress markers in the eyes of adult rats",
pages = "499-502",
doi = "10.46793/ICCBI23.499B"
}

Bobić, K., Todorović, A., Pejić, S., Veljković, F., Veličković, S., Pajović, S. B.,& Drakulić, D.. (2023). TiO2 nanoparticles and TiO2 nanoparticles surface modified with salicylic acid affect neurological functions and oxidative stress markers in the eyes of adult rats. in ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings
Kragujevac : Institute for Information Technologies, University of Kragujevac., 499-502.
https://doi.org/10.46793/ICCBI23.499B

Bobić K, Todorović A, Pejić S, Veljković F, Veličković S, Pajović SB, Drakulić D. TiO2 nanoparticles and TiO2 nanoparticles surface modified with salicylic acid affect neurological functions and oxidative stress markers in the eyes of adult rats. in ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings. 2023;:499-502.
doi:10.46793/ICCBI23.499B .

Bobić, Katarina, Todorović, Ana, Pejić, Snežana, Veljković, Filip, Veličković, Suzana, Pajović, Snežana B., Drakulić, Dunja, "TiO2 nanoparticles and TiO2 nanoparticles surface modified with salicylic acid affect neurological functions and oxidative stress markers in the eyes of adult rats" in ICCBIKG 2023 : 2nd International Conference on Chemo and Bioinformatics : Book of Proceedings (2023):499-502,
https://doi.org/10.46793/ICCBI23.499B . .

TY  - CONF
AU  - Veljković, Filip
AU  - Matović, Branko
AU  - Butulija, Svetlana
AU  - Stoiljković, Milovan
AU  - Stajčić, Ivana
AU  - Janković, Bojan
AU  - Veličković, Suzana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12622
AB  - In the last couple of decades the scientific is making great efforts to investigate the phenomenon of laser-matter interaction, because these knowledge can directly positively influence on technological innovations in the field of materials. This phenomenon are still not fully invetigate since involves a number physical and chemical processes, which take place simultaneously or separated in time and space [1]. The laser desorption/ionization (LDI) implies the following processes: the laser provide a pulse of energy to sample (for a few ns), the sample increases in temperature quickly ( to several thousand degrees), so lead to the production ions, neutrals and electrons in the gass phase [2]. The aim of this paper is to examine the products of the gas phase formed during the interaction of laser- Li1.999Ta0.005SiO3. The Li1.999Ta0.005SiO3 ceramics has a wide application because the melting of lithium metasilicate is used for the calibration of thermocouples, as a flux in glazes and ceramic enamels, dental glass, nuclear waste immobilization as well as ceramic materials for fusion reactors. The knowledge gained should contribute to a better understanding behavior of Li1.999Ta0.005SiO3 in extreme conditions. The experiments were performed on a commercial matrix-assisted laser desorption/ionization mass spectrometer (MALDI MS) with time of flight mass analyzer (Voyager-DE PRO, Sciex, USA), equipped with a nitrogen pulse laser (pulse duration of 3 ns, 20 Hz, and wavelength of 337 nm). The mass spectra were obtained using the LDI (without matrices) positive and negative reflector modes. It is known that the LDI MS is an efficient method for the production and detection of homogeneous and heterogeneous clusters [3]. Preliminary results shows that the ion signals in the negative ion LDI mass spectrum of Li1.999Ta0.005SiO3 correspond to the following species: m/z 59.89 SiO2 -  (calcd 59.97), m/z 71.90 Si2O-  (calcd 71.95), m/z 83.90 Si3 -  (calcd 83.93), m/z 95.91 Si(OH)4 - (calcd 95.99), m/z107.91 Si2(OH)2(H2O)-  (calcd 107.97), m/z 119.92 Si2O4 -  (calcd 119.93), m/z 120.95 Si2O3(OH)-  (calcd 120.94), m/z 131.93 Si3O3 -  (calcd 131.92), m/z 143.92 Si2(OH)2(H2O)3 - (calcd 143.99). The ion signals in the positive mode were attributed to the following cations: LiSi(OH)+  (m/z 52.02, calcd 51.99), Li3(OH)(H2O)+ (m/z 56.04, calcd 56.06), Li2SiO+ (m/z 58.05 calcd 58.00), Li3Si2H2(H2O)+ (m/z 97.15 calcd 97.03), Li5Si2H2O+ (m/z 109.10, calcd 109.04). The results show that silicon-oxygen cluster ions were formed in the negative mode, while lithiumsilicon clusters were detected in the positive mode.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
T1  - Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3
SP  - 46
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12622
ER  - 

@conference{
author = "Veljković, Filip and Matović, Branko and Butulija, Svetlana and Stoiljković, Milovan and Stajčić, Ivana and Janković, Bojan and Veličković, Suzana",
year = "2022",
abstract = "In the last couple of decades the scientific is making great efforts to investigate the phenomenon of laser-matter interaction, because these knowledge can directly positively influence on technological innovations in the field of materials. This phenomenon are still not fully invetigate since involves a number physical and chemical processes, which take place simultaneously or separated in time and space [1]. The laser desorption/ionization (LDI) implies the following processes: the laser provide a pulse of energy to sample (for a few ns), the sample increases in temperature quickly ( to several thousand degrees), so lead to the production ions, neutrals and electrons in the gass phase [2]. The aim of this paper is to examine the products of the gas phase formed during the interaction of laser- Li1.999Ta0.005SiO3. The Li1.999Ta0.005SiO3 ceramics has a wide application because the melting of lithium metasilicate is used for the calibration of thermocouples, as a flux in glazes and ceramic enamels, dental glass, nuclear waste immobilization as well as ceramic materials for fusion reactors. The knowledge gained should contribute to a better understanding behavior of Li1.999Ta0.005SiO3 in extreme conditions. The experiments were performed on a commercial matrix-assisted laser desorption/ionization mass spectrometer (MALDI MS) with time of flight mass analyzer (Voyager-DE PRO, Sciex, USA), equipped with a nitrogen pulse laser (pulse duration of 3 ns, 20 Hz, and wavelength of 337 nm). The mass spectra were obtained using the LDI (without matrices) positive and negative reflector modes. It is known that the LDI MS is an efficient method for the production and detection of homogeneous and heterogeneous clusters [3]. Preliminary results shows that the ion signals in the negative ion LDI mass spectrum of Li1.999Ta0.005SiO3 correspond to the following species: m/z 59.89 SiO2 -  (calcd 59.97), m/z 71.90 Si2O-  (calcd 71.95), m/z 83.90 Si3 -  (calcd 83.93), m/z 95.91 Si(OH)4 - (calcd 95.99), m/z107.91 Si2(OH)2(H2O)-  (calcd 107.97), m/z 119.92 Si2O4 -  (calcd 119.93), m/z 120.95 Si2O3(OH)-  (calcd 120.94), m/z 131.93 Si3O3 -  (calcd 131.92), m/z 143.92 Si2(OH)2(H2O)3 - (calcd 143.99). The ion signals in the positive mode were attributed to the following cations: LiSi(OH)+  (m/z 52.02, calcd 51.99), Li3(OH)(H2O)+ (m/z 56.04, calcd 56.06), Li2SiO+ (m/z 58.05 calcd 58.00), Li3Si2H2(H2O)+ (m/z 97.15 calcd 97.03), Li5Si2H2O+ (m/z 109.10, calcd 109.04). The results show that silicon-oxygen cluster ions were formed in the negative mode, while lithiumsilicon clusters were detected in the positive mode.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts",
title = "Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3",
pages = "46-46",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12622"
}

Veljković, F., Matović, B., Butulija, S., Stoiljković, M., Stajčić, I., Janković, B.,& Veličković, S.. (2022). Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 46-46.
https://hdl.handle.net/21.15107/rcub_vinar_12622

Veljković F, Matović B, Butulija S, Stoiljković M, Stajčić I, Janković B, Veličković S. Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts. 2022;:46-46.
https://hdl.handle.net/21.15107/rcub_vinar_12622 .

Veljković, Filip, Matović, Branko, Butulija, Svetlana, Stoiljković, Milovan, Stajčić, Ivana, Janković, Bojan, Veličković, Suzana, "Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3" in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts (2022):46-46,
https://hdl.handle.net/21.15107/rcub_vinar_12622 .

TY  - CONF
AU  - Bobić, Katarina
AU  - Milovanović, Tijana
AU  - Todorović, Ana
AU  - Drakulić, Dunja
AU  - Pejić, Snežana
AU  - Veljković, Filip
AU  - Pajović, Snežana
AU  - Nedeljković, Jovan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12662
AB  - Široka primena nanočestica titanijum-dioksida (TiO2 NČ) u medicini, farmaceutskoj, prehrambenoj i hemijskoj industriji,1 čini TiO2 NČ visoko zastupljenim u životnoj sredini i svim sferama čovekovog života. Negativne efekte ostvaruju u mozgu, s obzirom da lako prolaze krvno-moždanu barijeru, akumuliraju se u različitim regionima mozga i indukuju oksidativni stres tokom kog se oštećuju svi biomolekuli, uključujući i lipide.2 Literaturni podaci ukazuju da različite modifikacije mogu ublažiti uočene efekte, stoga je cilj ovog rada bio da se uporedi odgovor odraslih Wistar pacova 14 dana nakon jednokratnog oralnog tretmana sa komercijalno dostupnim TiO2 NČ i TiO2 NČ površinski modifikovanim salicilnom (TiO2/SK NČ) odnosno 5- aminosalicilnom kiselinom (TiO2/5-ASK NČ). Odgovarajućim testovima praćene su promene parametara senzorno-motorne funkcije (SMF), kao pokazatelja neurološkog deficita, dok je oksidativni stres praćen promenom nivoa lipidne peroksidacije (LPO) u ukupnom ćelijskom ekstraktu moždanog tkiva. Dobijeni rezultati ukazuju da TiO2/SK NČ ispoljavaju slične efekte kao TiO2 NČ, povećavajući nivo LPO koji može biti uzrok narušene SMF. Sa druge strane, smanjen stepen neurološkog deficita i nivoa oksidativnog stresa nakon TiO2/5- ASK NČ tretmana, mogu se povezati sa povećanjem aktivnosti komponenti antioksidativne zaštite. Stoga, može se pretpostaviti da površinska modifikacija TiO2 NČ sa 5-ASK ima sposobnost ublažavanja štetnih efekata komercijalno dostupnih TiO2 NČ.
PB  - Beograd : Srpsko biološko društvo
C3  - Treći kongres biologa Srbije : Osnovna i primenjena istraživanja, metodika nastave : Knjiga sažetaka
T1  - Površinska modifikacija nanočestica titanijum dioksida aminosalicilnom kiselinom ublažava neurološki deficit i lipidnu peroksidaciju u mozgu Wistar pacova
SP  - 311
EP  - 311
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12662
ER  - 

@conference{
author = "Bobić, Katarina and Milovanović, Tijana and Todorović, Ana and Drakulić, Dunja and Pejić, Snežana and Veljković, Filip and Pajović, Snežana and Nedeljković, Jovan",
year = "2022",
abstract = "Široka primena nanočestica titanijum-dioksida (TiO2 NČ) u medicini, farmaceutskoj, prehrambenoj i hemijskoj industriji,1 čini TiO2 NČ visoko zastupljenim u životnoj sredini i svim sferama čovekovog života. Negativne efekte ostvaruju u mozgu, s obzirom da lako prolaze krvno-moždanu barijeru, akumuliraju se u različitim regionima mozga i indukuju oksidativni stres tokom kog se oštećuju svi biomolekuli, uključujući i lipide.2 Literaturni podaci ukazuju da različite modifikacije mogu ublažiti uočene efekte, stoga je cilj ovog rada bio da se uporedi odgovor odraslih Wistar pacova 14 dana nakon jednokratnog oralnog tretmana sa komercijalno dostupnim TiO2 NČ i TiO2 NČ površinski modifikovanim salicilnom (TiO2/SK NČ) odnosno 5- aminosalicilnom kiselinom (TiO2/5-ASK NČ). Odgovarajućim testovima praćene su promene parametara senzorno-motorne funkcije (SMF), kao pokazatelja neurološkog deficita, dok je oksidativni stres praćen promenom nivoa lipidne peroksidacije (LPO) u ukupnom ćelijskom ekstraktu moždanog tkiva. Dobijeni rezultati ukazuju da TiO2/SK NČ ispoljavaju slične efekte kao TiO2 NČ, povećavajući nivo LPO koji može biti uzrok narušene SMF. Sa druge strane, smanjen stepen neurološkog deficita i nivoa oksidativnog stresa nakon TiO2/5- ASK NČ tretmana, mogu se povezati sa povećanjem aktivnosti komponenti antioksidativne zaštite. Stoga, može se pretpostaviti da površinska modifikacija TiO2 NČ sa 5-ASK ima sposobnost ublažavanja štetnih efekata komercijalno dostupnih TiO2 NČ.",
publisher = "Beograd : Srpsko biološko društvo",
journal = "Treći kongres biologa Srbije : Osnovna i primenjena istraživanja, metodika nastave : Knjiga sažetaka",
title = "Površinska modifikacija nanočestica titanijum dioksida aminosalicilnom kiselinom ublažava neurološki deficit i lipidnu peroksidaciju u mozgu Wistar pacova",
pages = "311-311",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12662"
}

Bobić, K., Milovanović, T., Todorović, A., Drakulić, D., Pejić, S., Veljković, F., Pajović, S.,& Nedeljković, J.. (2022). Površinska modifikacija nanočestica titanijum dioksida aminosalicilnom kiselinom ublažava neurološki deficit i lipidnu peroksidaciju u mozgu Wistar pacova. in Treći kongres biologa Srbije : Osnovna i primenjena istraživanja, metodika nastave : Knjiga sažetaka
Beograd : Srpsko biološko društvo., 311-311.
https://hdl.handle.net/21.15107/rcub_vinar_12662

Bobić K, Milovanović T, Todorović A, Drakulić D, Pejić S, Veljković F, Pajović S, Nedeljković J. Površinska modifikacija nanočestica titanijum dioksida aminosalicilnom kiselinom ublažava neurološki deficit i lipidnu peroksidaciju u mozgu Wistar pacova. in Treći kongres biologa Srbije : Osnovna i primenjena istraživanja, metodika nastave : Knjiga sažetaka. 2022;:311-311.
https://hdl.handle.net/21.15107/rcub_vinar_12662 .

Bobić, Katarina, Milovanović, Tijana, Todorović, Ana, Drakulić, Dunja, Pejić, Snežana, Veljković, Filip, Pajović, Snežana, Nedeljković, Jovan, "Površinska modifikacija nanočestica titanijum dioksida aminosalicilnom kiselinom ublažava neurološki deficit i lipidnu peroksidaciju u mozgu Wistar pacova" in Treći kongres biologa Srbije : Osnovna i primenjena istraživanja, metodika nastave : Knjiga sažetaka (2022):311-311,
https://hdl.handle.net/21.15107/rcub_vinar_12662 .

TY  - CONF
AU  - Bobić, Katarina
AU  - Todorović, Ana
AU  - Pejić, Snežana
AU  - Veljković, Filip
AU  - Pajović, Snežana
AU  - Nedeljković, Jovan
AU  - Drakulić, Dunja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12741
AB  - Titanium dioxide nanoparticles (TiO2 NPs) are widely used in many daily necessities, including medicine, food/ beverages, and cosmetics. Besides the numerous benefits of TiO2 NPs utilization, their use raises public concerns since humans are exposed to their toxicity. As different alterations could moderate the observed side effects of commercially available bare TiO2 NPs, we investigated whether TiO2/SA NPs (TiO2 NPs surface‑modified with salicylic acid (SA)) impact the bare TiO2 NPs-induced sensory-motor impairments and eye level of 4-hydroxynonenal (HNE) as the final product of lipid peroxidation and indicator of oxidative stress. Our results demonstrate that 14 days following single oral treatment both investigated TiO2 NPs in adult Wistar rats affected neurological functions and promoted oxidative stress to different extents. Namely, the SA modification alleviated TiO2 NPs-induced asymmetry in four limb movement, while the hind limb clasping reflex and spontaneous activity scores were similar between TiO2 groups. In the eye crude membrane fraction of TiO2/SA NPs-treated rats in comparison to animals treated with bare TiO2 NPs, the HNE level was downregulated. Although SA exhibits the ability to reduce some TiO2 NPs toxicity, due to still unknown mechanism of TiO2 and TiO2/SA NPs actions, further studies are required to verify herein presented findings
PB  - Poland : Nencki Institute of experimental biology
C3  - Acta Neurobiologiae experimentalis : NEURONUS 2022 : 12th Neuronus 2022 Neuroscience Forum : Abstracts
T1  - Surface modification of TiO2 nanoparticles moderates neurological impairments and upregulated oxidative stress indicator in eyes of adult Wistar rats
VL  - 82
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12741
ER  - 

@conference{
author = "Bobić, Katarina and Todorović, Ana and Pejić, Snežana and Veljković, Filip and Pajović, Snežana and Nedeljković, Jovan and Drakulić, Dunja",
year = "2022",
abstract = "Titanium dioxide nanoparticles (TiO2 NPs) are widely used in many daily necessities, including medicine, food/ beverages, and cosmetics. Besides the numerous benefits of TiO2 NPs utilization, their use raises public concerns since humans are exposed to their toxicity. As different alterations could moderate the observed side effects of commercially available bare TiO2 NPs, we investigated whether TiO2/SA NPs (TiO2 NPs surface‑modified with salicylic acid (SA)) impact the bare TiO2 NPs-induced sensory-motor impairments and eye level of 4-hydroxynonenal (HNE) as the final product of lipid peroxidation and indicator of oxidative stress. Our results demonstrate that 14 days following single oral treatment both investigated TiO2 NPs in adult Wistar rats affected neurological functions and promoted oxidative stress to different extents. Namely, the SA modification alleviated TiO2 NPs-induced asymmetry in four limb movement, while the hind limb clasping reflex and spontaneous activity scores were similar between TiO2 groups. In the eye crude membrane fraction of TiO2/SA NPs-treated rats in comparison to animals treated with bare TiO2 NPs, the HNE level was downregulated. Although SA exhibits the ability to reduce some TiO2 NPs toxicity, due to still unknown mechanism of TiO2 and TiO2/SA NPs actions, further studies are required to verify herein presented findings",
publisher = "Poland : Nencki Institute of experimental biology",
journal = "Acta Neurobiologiae experimentalis : NEURONUS 2022 : 12th Neuronus 2022 Neuroscience Forum : Abstracts",
title = "Surface modification of TiO2 nanoparticles moderates neurological impairments and upregulated oxidative stress indicator in eyes of adult Wistar rats",
volume = "82",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12741"
}

Bobić, K., Todorović, A., Pejić, S., Veljković, F., Pajović, S., Nedeljković, J.,& Drakulić, D.. (2022). Surface modification of TiO2 nanoparticles moderates neurological impairments and upregulated oxidative stress indicator in eyes of adult Wistar rats. in Acta Neurobiologiae experimentalis : NEURONUS 2022 : 12th Neuronus 2022 Neuroscience Forum : Abstracts
Poland : Nencki Institute of experimental biology., 82.
https://hdl.handle.net/21.15107/rcub_vinar_12741

Bobić K, Todorović A, Pejić S, Veljković F, Pajović S, Nedeljković J, Drakulić D. Surface modification of TiO2 nanoparticles moderates neurological impairments and upregulated oxidative stress indicator in eyes of adult Wistar rats. in Acta Neurobiologiae experimentalis : NEURONUS 2022 : 12th Neuronus 2022 Neuroscience Forum : Abstracts. 2022;82.
https://hdl.handle.net/21.15107/rcub_vinar_12741 .

Bobić, Katarina, Todorović, Ana, Pejić, Snežana, Veljković, Filip, Pajović, Snežana, Nedeljković, Jovan, Drakulić, Dunja, "Surface modification of TiO2 nanoparticles moderates neurological impairments and upregulated oxidative stress indicator in eyes of adult Wistar rats" in Acta Neurobiologiae experimentalis : NEURONUS 2022 : 12th Neuronus 2022 Neuroscience Forum : Abstracts, 82 (2022),
https://hdl.handle.net/21.15107/rcub_vinar_12741 .

TY  - CONF
AU  - Vuksanović, Marija M.
AU  - Stajčić, Ivana
AU  - Veličković, Z.
AU  - Gržetić, J. D.
AU  - Veljković, Filip M.
AU  - Veličković, Suzana
AU  - Marinković, A.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10675
AB  - Recycling of polymer materials is a promising way of plastic waste reduction and production of compounds that reduce oil-based materials dependence. This paper represents synthesis of waste PET-based plasticizer obtained by esterification of PET depolymerization products (glycolisate) and levulinic (bio-renewable chemical). Depolymerization of the waste PET was performed using diethylene glycol. Morphological and structural analyses confirmed successful depolymerization of waste-PET, as well as esterification of the obtained product with levulinic acid. Good chemical resistance and mechanical properties, e.g. elongation at break of 65% and tensile strength of 50 MPa, of recycled PVC modified with synthesized waste-PET based plasticizer proved that depolymerization and modification of waste-PET represent one efficient solution for plastic waste recycling.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings
T1  - Synthesis and Application of Waste-Pet Glycolyzate Plastisizer for Recycled PVC Production
SP  - 359
EP  - 362
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10675
ER  - 

@conference{
author = "Vuksanović, Marija M. and Stajčić, Ivana and Veličković, Z. and Gržetić, J. D. and Veljković, Filip M. and Veličković, Suzana and Marinković, A.",
year = "2022",
abstract = "Recycling of polymer materials is a promising way of plastic waste reduction and production of compounds that reduce oil-based materials dependence. This paper represents synthesis of waste PET-based plasticizer obtained by esterification of PET depolymerization products (glycolisate) and levulinic (bio-renewable chemical). Depolymerization of the waste PET was performed using diethylene glycol. Morphological and structural analyses confirmed successful depolymerization of waste-PET, as well as esterification of the obtained product with levulinic acid. Good chemical resistance and mechanical properties, e.g. elongation at break of 65% and tensile strength of 50 MPa, of recycled PVC modified with synthesized waste-PET based plasticizer proved that depolymerization and modification of waste-PET represent one efficient solution for plastic waste recycling.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings",
title = "Synthesis and Application of Waste-Pet Glycolyzate Plastisizer for Recycled PVC Production",
pages = "359-362",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10675"
}

Vuksanović, M. M., Stajčić, I., Veličković, Z., Gržetić, J. D., Veljković, F. M., Veličković, S.,& Marinković, A.. (2022). Synthesis and Application of Waste-Pet Glycolyzate Plastisizer for Recycled PVC Production. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings
Belgrade : Society of Physical Chemists of Serbia., 359-362.
https://hdl.handle.net/21.15107/rcub_vinar_10675

Vuksanović MM, Stajčić I, Veličković Z, Gržetić JD, Veljković FM, Veličković S, Marinković A. Synthesis and Application of Waste-Pet Glycolyzate Plastisizer for Recycled PVC Production. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings. 2022;:359-362.
https://hdl.handle.net/21.15107/rcub_vinar_10675 .

Vuksanović, Marija M., Stajčić, Ivana, Veličković, Z., Gržetić, J. D., Veljković, Filip M., Veličković, Suzana, Marinković, A., "Synthesis and Application of Waste-Pet Glycolyzate Plastisizer for Recycled PVC Production" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings (2022):359-362,
https://hdl.handle.net/21.15107/rcub_vinar_10675 .

TY  - CONF
AU  - Veljković, Filip
AU  - Veličković, Suzana
AU  - Manić, Nebojša
AU  - Stajčić, Ivana
AU  - Janković, Bojan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12355
AB  - This paper considers possible uses of fruit-based waste (Goji berry mesocarp (GBM)) for the production of key platform chemicals (5-hydroxymethylfurfural (5-HMF)) through thermochemical conversion via slow pyrolysis, which was performed using simultaneous thermal analysis (STA). Originality and significance of this research is reflected in novel insights of fructose molecule role in the production of 5-hydroxymethylfurfural (5-HMF) through structural characteristics, manifesting reciprocal catalysis behaviour in an endergonic reaction pathway, giving high energy products. Based on proposed experimental and theoretical networks, the unwanted side products are totally blocked, where established results in this research clearly show advantages of synergistic work of the substrate molecule (glucose) and pseudo-catalyst (fructose) for the effective production of 5-HMF. The fructose self-repaired (isomerization) cycle through ‘open’ to ‘closed’ structure organization was explained as the key factor, which was responsible for the fructose effective autocatalytic lineage to the desired product, interpreting high yields of 5-HMF.
AB  - Овај рад разматра могућу употребу отпада на бази воћа (Гоји бобица месокарпа (ГБМ)) за производњу кључних платформских хемикалија (5-хидроксиметилфурфурала (5-ХМФ)) кроз термо хемијску конверзију путем споре пиролизе, која је изведена коришћењем симултане термичке анализе (СТА). Оригиналност и значај овог истраживања огледа се у новим спознајама о улози молекула фруктозе у производњи 5-хидроксиметилфурфурала (5-ХМФ) кроз структурне карактеристике, манифестујући реципрочно понашање катализе у путу ендергонске реакције, дајући производе високе енергије. На основу предложених експерименталних и теоретских мрежа, нежељени споредни производи су потпуно блокирани, при чему утврђени резултати у овом истраживању јасно показују предност и синергистичког рада молекула супстрата (глукозе) и псеудо катализатора (фруктозе) за ефикасну производњу 5-ХМФ. Циклус фруктозе који се само поправља (изомеризација) кроз организацију „отворене“ до „затворене“ структуре објашњен је као кључни фактор, који је био одговоран за ефикасну аутокаталитичку линију фруктозе до жељеног производа, тумачећи високе приносе 5-ХМФ-а.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS
C3  - ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings
T1  - Fructose endergonic autocatalytic cycle in efficient production of 5-Hydroxymethylfurfural (5-HMF) from slow pyrolysis of goji berry mesocarp (GBM)
T1  - Endergonski autokatalitički ciklus fruktoze u efikasnoj proizvodnjI 5-Hidroksimetilfurfurala (5-HMF) iz spore pirolize mezokarpa goji bobica (GBM)
SP  - 77
EP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12355
ER  - 

@conference{
author = "Veljković, Filip and Veličković, Suzana and Manić, Nebojša and Stajčić, Ivana and Janković, Bojan",
year = "2022",
abstract = "This paper considers possible uses of fruit-based waste (Goji berry mesocarp (GBM)) for the production of key platform chemicals (5-hydroxymethylfurfural (5-HMF)) through thermochemical conversion via slow pyrolysis, which was performed using simultaneous thermal analysis (STA). Originality and significance of this research is reflected in novel insights of fructose molecule role in the production of 5-hydroxymethylfurfural (5-HMF) through structural characteristics, manifesting reciprocal catalysis behaviour in an endergonic reaction pathway, giving high energy products. Based on proposed experimental and theoretical networks, the unwanted side products are totally blocked, where established results in this research clearly show advantages of synergistic work of the substrate molecule (glucose) and pseudo-catalyst (fructose) for the effective production of 5-HMF. The fructose self-repaired (isomerization) cycle through ‘open’ to ‘closed’ structure organization was explained as the key factor, which was responsible for the fructose effective autocatalytic lineage to the desired product, interpreting high yields of 5-HMF., Овај рад разматра могућу употребу отпада на бази воћа (Гоји бобица месокарпа (ГБМ)) за производњу кључних платформских хемикалија (5-хидроксиметилфурфурала (5-ХМФ)) кроз термо хемијску конверзију путем споре пиролизе, која је изведена коришћењем симултане термичке анализе (СТА). Оригиналност и значај овог истраживања огледа се у новим спознајама о улози молекула фруктозе у производњи 5-хидроксиметилфурфурала (5-ХМФ) кроз структурне карактеристике, манифестујући реципрочно понашање катализе у путу ендергонске реакције, дајући производе високе енергије. На основу предложених експерименталних и теоретских мрежа, нежељени споредни производи су потпуно блокирани, при чему утврђени резултати у овом истраживању јасно показују предност и синергистичког рада молекула супстрата (глукозе) и псеудо катализатора (фруктозе) за ефикасну производњу 5-ХМФ. Циклус фруктозе који се само поправља (изомеризација) кроз организацију „отворене“ до „затворене“ структуре објашњен је као кључни фактор, који је био одговоран за ефикасну аутокаталитичку линију фруктозе до жељеног производа, тумачећи високе приносе 5-ХМФ-а.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS",
journal = "ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings",
title = "Fructose endergonic autocatalytic cycle in efficient production of 5-Hydroxymethylfurfural (5-HMF) from slow pyrolysis of goji berry mesocarp (GBM), Endergonski autokatalitički ciklus fruktoze u efikasnoj proizvodnjI 5-Hidroksimetilfurfurala (5-HMF) iz spore pirolize mezokarpa goji bobica (GBM)",
pages = "77-83",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12355"
}

Veljković, F., Veličković, S., Manić, N., Stajčić, I.,& Janković, B.. (2022). Fructose endergonic autocatalytic cycle in efficient production of 5-Hydroxymethylfurfural (5-HMF) from slow pyrolysis of goji berry mesocarp (GBM). in ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS., 77-83.
https://hdl.handle.net/21.15107/rcub_vinar_12355

Veljković F, Veličković S, Manić N, Stajčić I, Janković B. Fructose endergonic autocatalytic cycle in efficient production of 5-Hydroxymethylfurfural (5-HMF) from slow pyrolysis of goji berry mesocarp (GBM). in ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings. 2022;:77-83.
https://hdl.handle.net/21.15107/rcub_vinar_12355 .

Veljković, Filip, Veličković, Suzana, Manić, Nebojša, Stajčić, Ivana, Janković, Bojan, "Fructose endergonic autocatalytic cycle in efficient production of 5-Hydroxymethylfurfural (5-HMF) from slow pyrolysis of goji berry mesocarp (GBM)" in ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings (2022):77-83,
https://hdl.handle.net/21.15107/rcub_vinar_12355 .

TY  - CONF
AU  - Veljković, Filip
AU  - Veličković, Suzana
AU  - Manić, Nebojša
AU  - Stajčić, Ivana
AU  - Janković, Bojan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12364
AB  - This work considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of Goji berry mesocarp (GBM) as sugar-rich feedstock was investigated using simultaneous thermal analysis (STA) measurements in non-isothermal conditions. Results reveal that pyrolysis of GBM represents a promising route to obtain important key platform chemical - 5-hydroxymethylfurfural (5-HMF). It was found that autocatalytic dehydration of fructose (in a presence of Lewis acids) is responsible for production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 and 15.0 K/min) trigger fructose autogenesis behavior which opens the transferability channel to glucose engagement for 5-HMF theoretical high yield production.
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts
T1  - TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp
SP  - 155
EP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12364
ER  - 

@conference{
author = "Veljković, Filip and Veličković, Suzana and Manić, Nebojša and Stajčić, Ivana and Janković, Bojan",
year = "2022",
abstract = "This work considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of Goji berry mesocarp (GBM) as sugar-rich feedstock was investigated using simultaneous thermal analysis (STA) measurements in non-isothermal conditions. Results reveal that pyrolysis of GBM represents a promising route to obtain important key platform chemical - 5-hydroxymethylfurfural (5-HMF). It was found that autocatalytic dehydration of fructose (in a presence of Lewis acids) is responsible for production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 and 15.0 K/min) trigger fructose autogenesis behavior which opens the transferability channel to glucose engagement for 5-HMF theoretical high yield production.",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts",
title = "TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp",
pages = "155-155",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12364"
}

Veljković, F., Veličković, S., Manić, N., Stajčić, I.,& Janković, B.. (2022). TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts, 155-155.
https://hdl.handle.net/21.15107/rcub_vinar_12364

Veljković F, Veličković S, Manić N, Stajčić I, Janković B. TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts. 2022;:155-155.
https://hdl.handle.net/21.15107/rcub_vinar_12364 .

Veljković, Filip, Veličković, Suzana, Manić, Nebojša, Stajčić, Ivana, Janković, Bojan, "TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts (2022):155-155,
https://hdl.handle.net/21.15107/rcub_vinar_12364 .

TY  - CONF
AU  - Veljković, Filip
AU  - Veličković, Suzana
AU  - Manić, Nebojša
AU  - Stajčić, Ivana
AU  - Janković, Bojan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12615
AB  - This work considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of Goji berry mesocarp (GBM) as sugar-rich feedstock was investigated using simultaneous thermal analysis (STA) measurements in non-isothermal conditions. Results reveal that pyrolysis of GBM represents a promising route to obtain important key platform chemical - 5-hydroxymethylfurfural (5-HMF). It was found that autocatalytic dehydration of fructose (in a presence of Lewis acids) is responsible for production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 and 15.0 K/min) trigger fructose autogenesis behavior which opens the transferability channel to glucose engagement for 5-HMF theoretical high yield production.
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings
T1  - TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp
VL  - 2
SP  - 553
EP  - 556
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12615
ER  - 

@conference{
author = "Veljković, Filip and Veličković, Suzana and Manić, Nebojša and Stajčić, Ivana and Janković, Bojan",
year = "2022",
abstract = "This work considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of Goji berry mesocarp (GBM) as sugar-rich feedstock was investigated using simultaneous thermal analysis (STA) measurements in non-isothermal conditions. Results reveal that pyrolysis of GBM represents a promising route to obtain important key platform chemical - 5-hydroxymethylfurfural (5-HMF). It was found that autocatalytic dehydration of fructose (in a presence of Lewis acids) is responsible for production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 and 15.0 K/min) trigger fructose autogenesis behavior which opens the transferability channel to glucose engagement for 5-HMF theoretical high yield production.",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings",
title = "TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp",
volume = "2",
pages = "553-556",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12615"
}

Veljković, F., Veličković, S., Manić, N., Stajčić, I.,& Janković, B.. (2022). TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, 2, 553-556.
https://hdl.handle.net/21.15107/rcub_vinar_12615

Veljković F, Veličković S, Manić N, Stajčić I, Janković B. TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings. 2022;2:553-556.
https://hdl.handle.net/21.15107/rcub_vinar_12615 .

Veljković, Filip, Veličković, Suzana, Manić, Nebojša, Stajčić, Ivana, Janković, Bojan, "TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, 2 (2022):553-556,
https://hdl.handle.net/21.15107/rcub_vinar_12615 .