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Recent advances on smart glycoconjugate vaccines in infections and cancer

Anderluh, Marko; Berti, Francesco; Bzducha-Wróbel, Anna; Chiodo, Fabrizio; Colombo, Cinzia; Compostella, Federica; Durlik, Katarzyna; Ferhati, Xhenti; Holmdahl, Rikard; Jovanović, Dragana J.; Kaca, Wieslaw; Lay, Luigi; Marinovic-Cincovic, Milena; Marradi, Marco; Ozil, Musa; Polito, Laura; Reina, Josè Juan; Reis, Celso A.; Sackstein, Robert; Silipo, Alba; Švajger, Urban; Vaněk, Ondřej; Yamamoto, Fumiichiro; Richichi, Barbara; van Vliet, Sandra J.

TY  - JOUR
AU  - Anderluh, Marko
AU  - Berti, Francesco
AU  - Bzducha-Wróbel, Anna
AU  - Chiodo, Fabrizio
AU  - Colombo, Cinzia
AU  - Compostella, Federica
AU  - Durlik, Katarzyna
AU  - Ferhati, Xhenti
AU  - Holmdahl, Rikard
AU  - Jovanović, Dragana J.
AU  - Kaca, Wieslaw
AU  - Lay, Luigi
AU  - Marinovic-Cincovic, Milena
AU  - Marradi, Marco
AU  - Ozil, Musa
AU  - Polito, Laura
AU  - Reina, Josè Juan
AU  - Reis, Celso A.
AU  - Sackstein, Robert
AU  - Silipo, Alba
AU  - Švajger, Urban
AU  - Vaněk, Ondřej
AU  - Yamamoto, Fumiichiro
AU  - Richichi, Barbara
AU  - van Vliet, Sandra J.
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9834
AB  - Vaccination is one of the greatest achievements in biomedical research preventing death and morbidity in many infectious diseases through the induction of pathogen-specific humoral and cellular immune responses. Currently, no effective vaccines are available for pathogens with a highly variable antigenic load, such as the human immunodeficiency virus or to induce cellular T-cell immunity in the fight against cancer. The recent SARS-CoV-2 outbreak has reinforced the relevance of designing smart therapeutic vaccine modalities to ensure public health. Indeed, academic and private companies have ongoing joint efforts to develop novel vaccine prototypes for this virus. Many pathogens are covered by a dense glycan-coat, which form an attractive target for vaccine development. Moreover, many tumor types are characterized by altered glycosylation profiles that are known as “tumor-associated carbohydrate antigens”. Unfortunately, glycans do not provoke a vigorous immune response and generally serve as T-cell-independent antigens, not eliciting protective immunoglobulin G responses nor inducing immunological memory. A close and continuous crosstalk between glycochemists and glycoimmunologists is essential for the successful development of efficient immune modulators. It is clear that this is a key point for the discovery of novel approaches, which could significantly improve our understanding of the immune system. In this review, we discuss the latest advancements in development of vaccines against glycan epitopes to gain selective immune responses and to provide an overview on the role of different immunogenic constructs in improving glycovaccine efficacy.
T2  - The FEBS Journal
T1  - Recent advances on smart glycoconjugate vaccines in infections and cancer
DO  - 10.1111/febs.15909
ER  - 
@article{
author = "Anderluh, Marko and Berti, Francesco and Bzducha-Wróbel, Anna and Chiodo, Fabrizio and Colombo, Cinzia and Compostella, Federica and Durlik, Katarzyna and Ferhati, Xhenti and Holmdahl, Rikard and Jovanović, Dragana J. and Kaca, Wieslaw and Lay, Luigi and Marinovic-Cincovic, Milena and Marradi, Marco and Ozil, Musa and Polito, Laura and Reina, Josè Juan and Reis, Celso A. and Sackstein, Robert and Silipo, Alba and Švajger, Urban and Vaněk, Ondřej and Yamamoto, Fumiichiro and Richichi, Barbara and van Vliet, Sandra J.",
abstract = "Vaccination is one of the greatest achievements in biomedical research preventing death and morbidity in many infectious diseases through the induction of pathogen-specific humoral and cellular immune responses. Currently, no effective vaccines are available for pathogens with a highly variable antigenic load, such as the human immunodeficiency virus or to induce cellular T-cell immunity in the fight against cancer. The recent SARS-CoV-2 outbreak has reinforced the relevance of designing smart therapeutic vaccine modalities to ensure public health. Indeed, academic and private companies have ongoing joint efforts to develop novel vaccine prototypes for this virus. Many pathogens are covered by a dense glycan-coat, which form an attractive target for vaccine development. Moreover, many tumor types are characterized by altered glycosylation profiles that are known as “tumor-associated carbohydrate antigens”. Unfortunately, glycans do not provoke a vigorous immune response and generally serve as T-cell-independent antigens, not eliciting protective immunoglobulin G responses nor inducing immunological memory. A close and continuous crosstalk between glycochemists and glycoimmunologists is essential for the successful development of efficient immune modulators. It is clear that this is a key point for the discovery of novel approaches, which could significantly improve our understanding of the immune system. In this review, we discuss the latest advancements in development of vaccines against glycan epitopes to gain selective immune responses and to provide an overview on the role of different immunogenic constructs in improving glycovaccine efficacy.",
journal = "The FEBS Journal",
title = "Recent advances on smart glycoconjugate vaccines in infections and cancer",
doi = "10.1111/febs.15909"
}
Anderluh, M., Berti, F., Bzducha-Wróbel, A., Chiodo, F., Colombo, C., Compostella, F., Durlik, K., Ferhati, X., Holmdahl, R., Jovanović, D. J., Kaca, W., Lay, L., Marinovic-Cincovic, M., Marradi, M., Ozil, M., Polito, L., Reina, J. J., Reis, C. A., Sackstein, R., Silipo, A., Švajger, U., Vaněk, O., Yamamoto, F., Richichi, B.,& van Vliet, S. J..Recent advances on smart glycoconjugate vaccines in infections and cancer. in The FEBS Journal.
https://doi.org/10.1111/febs.15909
Anderluh M, Berti F, Bzducha-Wróbel A, Chiodo F, Colombo C, Compostella F, Durlik K, Ferhati X, Holmdahl R, Jovanović DJ, Kaca W, Lay L, Marinovic-Cincovic M, Marradi M, Ozil M, Polito L, Reina JJ, Reis CA, Sackstein R, Silipo A, Švajger U, Vaněk O, Yamamoto F, Richichi B, van Vliet SJ. Recent advances on smart glycoconjugate vaccines in infections and cancer. in The FEBS Journal..
doi:10.1111/febs.15909 .
Anderluh, Marko, Berti, Francesco, Bzducha-Wróbel, Anna, Chiodo, Fabrizio, Colombo, Cinzia, Compostella, Federica, Durlik, Katarzyna, Ferhati, Xhenti, Holmdahl, Rikard, Jovanović, Dragana J., Kaca, Wieslaw, Lay, Luigi, Marinovic-Cincovic, Milena, Marradi, Marco, Ozil, Musa, Polito, Laura, Reina, Josè Juan, Reis, Celso A., Sackstein, Robert, Silipo, Alba, Švajger, Urban, Vaněk, Ondřej, Yamamoto, Fumiichiro, Richichi, Barbara, van Vliet, Sandra J., "Recent advances on smart glycoconjugate vaccines in infections and cancer" in The FEBS Journal,
https://doi.org/10.1111/febs.15909 . .
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Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol

Kovačević, Nikola; Dapčević, Aleksandra; Ivković, Branka; Kachrimanis, Kyriakos; Mitrić, Miodrag; Ibrić, Svetlana; Medarević, Đorđe

TY  - JOUR
AU  - Kovačević, Nikola
AU  - Dapčević, Aleksandra
AU  - Ivković, Branka
AU  - Kachrimanis, Kyriakos
AU  - Mitrić, Miodrag
AU  - Ibrić, Svetlana
AU  - Medarević, Đorđe
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9932
AB  - In this study, four low molecular weight (LMW) excipients, tryptophan (TRY), phenylalanine (PHE), lysine (LYS) and saccharin (SAC) were evaluated as co-formers to generate co-amorphous systems (CAMS) by ball milling with carvedilol (CRV). Mixtures of CRV and LMW excipient in 1:0.5, 1:1 and 1:2 drug:excipient molar ratios were ball milled and analysed by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), Fourier transform (FT-IR) infrared spectroscopy and dissolution testing. CAMS were formed by milling of a mixture of CRV with TRY in 1:2 M ratio and SAC in 1:1 M ratio, while amorphization of only CRV was achieved in other mixtures with SAC. In other samples containing TRY and PHE, milling resulted in partial amorphization, while LYS was the least suitable excipient for the amorphization of CRV. Unexpectedly, the highest supersaturation of CRV was achieved from samples containing CRV and LYS in 1:1 and 1:2 M ratios, despite the absence of a significant reduction in CRV crystallinity upon milling of these samples. Increase of hydrophobic surface area caused by milling of samples with TRY and PHE and agglomeration during dissolution testing of samples containing SAC are likely causes of poor dissolution performance of mixtures containing fully or partially amorphous CRV.
T2  - International Journal of Pharmaceutics
T1  - Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol
VL  - 608
DO  - 10.1016/j.ijpharm.2021.121033
ER  - 
@article{
author = "Kovačević, Nikola and Dapčević, Aleksandra and Ivković, Branka and Kachrimanis, Kyriakos and Mitrić, Miodrag and Ibrić, Svetlana and Medarević, Đorđe",
abstract = "In this study, four low molecular weight (LMW) excipients, tryptophan (TRY), phenylalanine (PHE), lysine (LYS) and saccharin (SAC) were evaluated as co-formers to generate co-amorphous systems (CAMS) by ball milling with carvedilol (CRV). Mixtures of CRV and LMW excipient in 1:0.5, 1:1 and 1:2 drug:excipient molar ratios were ball milled and analysed by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), Fourier transform (FT-IR) infrared spectroscopy and dissolution testing. CAMS were formed by milling of a mixture of CRV with TRY in 1:2 M ratio and SAC in 1:1 M ratio, while amorphization of only CRV was achieved in other mixtures with SAC. In other samples containing TRY and PHE, milling resulted in partial amorphization, while LYS was the least suitable excipient for the amorphization of CRV. Unexpectedly, the highest supersaturation of CRV was achieved from samples containing CRV and LYS in 1:1 and 1:2 M ratios, despite the absence of a significant reduction in CRV crystallinity upon milling of these samples. Increase of hydrophobic surface area caused by milling of samples with TRY and PHE and agglomeration during dissolution testing of samples containing SAC are likely causes of poor dissolution performance of mixtures containing fully or partially amorphous CRV.",
journal = "International Journal of Pharmaceutics",
title = "Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol",
volume = "608",
doi = "10.1016/j.ijpharm.2021.121033"
}
Kovačević, N., Dapčević, A., Ivković, B., Kachrimanis, K., Mitrić, M., Ibrić, S.,& Medarević, Đ..Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol. in International Journal of Pharmaceutics, 608.
https://doi.org/10.1016/j.ijpharm.2021.121033
Kovačević N, Dapčević A, Ivković B, Kachrimanis K, Mitrić M, Ibrić S, Medarević Đ. Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol. in International Journal of Pharmaceutics.608.
doi:10.1016/j.ijpharm.2021.121033 .
Kovačević, Nikola, Dapčević, Aleksandra, Ivković, Branka, Kachrimanis, Kyriakos, Mitrić, Miodrag, Ibrić, Svetlana, Medarević, Đorđe, "Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol" in International Journal of Pharmaceutics, 608,
https://doi.org/10.1016/j.ijpharm.2021.121033 . .

The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer

Marinković, Aleksandar; Vuksanović, Marija M.; Karić, Nataša; Đokić, Veljko; Popović, Mina; Jančić-Heinemann, Radmila; Tomić, Nataša

TY  - JOUR
AU  - Marinković, Aleksandar
AU  - Vuksanović, Marija M.
AU  - Karić, Nataša
AU  - Đokić, Veljko
AU  - Popović, Mina
AU  - Jančić-Heinemann, Radmila
AU  - Tomić, Nataša
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9761
AB  - As a renewable resource, starch is considered to be fully biodegradable and nonpolluting to the environment but the hygroscopicity of starch is the main disadvantage for wider applicability in the production of a polymer-based material. Hydrophobically modified starch prepared using natural-based plasticizers/modifiers in a first step ([-]-diisopropyl D-tartrate [DiPT], ricinoleic acid [RA] and epoxidized soybean oil [ESO]), and maleated polypropylene (MAPP) in a second step contributed to better compatibility, and thus reinforcing of composites. Tailored processing conditions, structural/morphological properties, hydrophobicity, and water-resistance of the modified starch were established. In addition, the Charpy impact and tensile strength of composites, based on poly(ethylene-co-acrylic acid) (EAA) and modified starches, were determined. Increased tensile strength and Young modulus of the composite using starch-modified with DiPT-MAPP, that is, 3 and 83%, respectively, indicated the possible applicability of obtained materials.
T2  - Polymer Composites
T1  - The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer
DO  - 10.1002/pc.25903
ER  - 
@article{
author = "Marinković, Aleksandar and Vuksanović, Marija M. and Karić, Nataša and Đokić, Veljko and Popović, Mina and Jančić-Heinemann, Radmila and Tomić, Nataša",
abstract = "As a renewable resource, starch is considered to be fully biodegradable and nonpolluting to the environment but the hygroscopicity of starch is the main disadvantage for wider applicability in the production of a polymer-based material. Hydrophobically modified starch prepared using natural-based plasticizers/modifiers in a first step ([-]-diisopropyl D-tartrate [DiPT], ricinoleic acid [RA] and epoxidized soybean oil [ESO]), and maleated polypropylene (MAPP) in a second step contributed to better compatibility, and thus reinforcing of composites. Tailored processing conditions, structural/morphological properties, hydrophobicity, and water-resistance of the modified starch were established. In addition, the Charpy impact and tensile strength of composites, based on poly(ethylene-co-acrylic acid) (EAA) and modified starches, were determined. Increased tensile strength and Young modulus of the composite using starch-modified with DiPT-MAPP, that is, 3 and 83%, respectively, indicated the possible applicability of obtained materials.",
journal = "Polymer Composites",
title = "The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer",
doi = "10.1002/pc.25903"
}
Marinković, A., Vuksanović, M. M., Karić, N., Đokić, V., Popović, M., Jančić-Heinemann, R.,& Tomić, N..The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer. in Polymer Composites.
https://doi.org/10.1002/pc.25903
Marinković A, Vuksanović MM, Karić N, Đokić V, Popović M, Jančić-Heinemann R, Tomić N. The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer. in Polymer Composites..
doi:10.1002/pc.25903 .
Marinković, Aleksandar, Vuksanović, Marija M., Karić, Nataša, Đokić, Veljko, Popović, Mina, Jančić-Heinemann, Radmila, Tomić, Nataša, "The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer" in Polymer Composites,
https://doi.org/10.1002/pc.25903 . .
1
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Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method

Vasiljević, Zorka Ž.; Dojčinović, Milena; Vujančević, Jelena; Janković-Častvan, Ivona; Ognjanović, Miloš; Tadić, Nenad B.; Stojadinović, Stevan; Branković, Goran O.; Nikolić, Maria Vesna

TY  - JOUR
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Janković-Častvan, Ivona
AU  - Ognjanović, Miloš
AU  - Tadić, Nenad B.
AU  - Stojadinović, Stevan
AU  - Branković, Goran O.
AU  - Nikolić, Maria Vesna
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9706
AB  - The aim of this work was to synthesize semiconducting oxide nanoparticles using a simple method with low production cost to be applied in natural sunlight for photocatalytic degradation of pollutants in waste water. Iron titanate (Fe2TiO5) nanoparticles with an orthorhombic structure were successfully synthesized using a modified sol–gel method and calcination at 750°C. The as-prepared Fe2TiO5 nanoparticles exhibited a moderate specific surface area. The mesoporous Fe2TiO5 nanoparticles possessed strong absorption in the visible-light region and the band gap was estimated to be around 2.16 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under natural sunlight. The effect of parameters such as the amount of catalyst, initial concentration of the dye and pH of the dye solution on the removal efficiency of methylene blue was investigated. Fe2TiO5 showed high degradation efficiency in a strong alkaline medium that can be the result of the facilitated formation of OH radicals due to an increased concentration of hydroxyl ions.
T2  - Royal Society Open Science
T1  - Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method
VL  - 7
IS  - 9
SP  - 200708
DO  - 10.1098/rsos.200708
ER  - 
@article{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Janković-Častvan, Ivona and Ognjanović, Miloš and Tadić, Nenad B. and Stojadinović, Stevan and Branković, Goran O. and Nikolić, Maria Vesna",
abstract = "The aim of this work was to synthesize semiconducting oxide nanoparticles using a simple method with low production cost to be applied in natural sunlight for photocatalytic degradation of pollutants in waste water. Iron titanate (Fe2TiO5) nanoparticles with an orthorhombic structure were successfully synthesized using a modified sol–gel method and calcination at 750°C. The as-prepared Fe2TiO5 nanoparticles exhibited a moderate specific surface area. The mesoporous Fe2TiO5 nanoparticles possessed strong absorption in the visible-light region and the band gap was estimated to be around 2.16 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under natural sunlight. The effect of parameters such as the amount of catalyst, initial concentration of the dye and pH of the dye solution on the removal efficiency of methylene blue was investigated. Fe2TiO5 showed high degradation efficiency in a strong alkaline medium that can be the result of the facilitated formation of OH radicals due to an increased concentration of hydroxyl ions.",
journal = "Royal Society Open Science",
title = "Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method",
volume = "7",
number = "9",
pages = "200708",
doi = "10.1098/rsos.200708"
}
Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J., Janković-Častvan, I., Ognjanović, M., Tadić, N. B., Stojadinović, S., Branković, G. O.,& Nikolić, M. V..Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method. in Royal Society Open Science, 7(9), 200708.
https://doi.org/10.1098/rsos.200708
Vasiljević ZŽ, Dojčinović M, Vujančević J, Janković-Častvan I, Ognjanović M, Tadić NB, Stojadinović S, Branković GO, Nikolić MV. Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method. in Royal Society Open Science.7(9):200708.
doi:10.1098/rsos.200708 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Vujančević, Jelena, Janković-Častvan, Ivona, Ognjanović, Miloš, Tadić, Nenad B., Stojadinović, Stevan, Branković, Goran O., Nikolić, Maria Vesna, "Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method" in Royal Society Open Science, 7, no. 9:200708,
https://doi.org/10.1098/rsos.200708 . .
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Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles

Lojpur, Vesna; Joschko, Maximilian; Graf, Christina; Radmilović, Nadežda; Novaković, Mirjana; Validžić, Ivana

(2022)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Joschko, Maximilian
AU  - Graf, Christina
AU  - Radmilović, Nadežda
AU  - Novaković, Mirjana
AU  - Validžić, Ivana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9955
AB  - Amorphous non-doped, iodine- and tin-doped Sb2S3 nanoparticles were prepared via the hot-injection method. HRTEM of amorphous undoped and doped samples revealed the formation of spherical nanoparticles of 20–50 nm diameter aggregated into clusters in the size of 100–200 nm. EDX analysis indicated the presence of desired elements in all observed samples. The bandgaps of non-doped and doped samples were determined from the reflectance spectra, and variations of the bandgaps, even small ones, are insufficient indications of doping. These uncertainties are further clarified by investigating crystalline undoped and doped samples in addition to the amorphous ones. XRPD results of the amorphous samples confirmed the amorphous structure, while Le Bail refinements of the crystalline samples show well-defined peaks from only the Sb2S3 phase, indicating a successful doping process. XPS measurements revealed that the phase of the undoped sample is free of impurities and that 3 d peaks of iodine and tin in the doped samples are present. The XPS valence bands shifted towards higher (I) or lower (Sn) binding energies compared to the undoped samples for both amorphous and crystalline samples, which is an additional support that incorporation of dopant ions in the Sb2S3 lattice took place.
T2  - Materials Science in Semiconductor Processing
T1  - Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles
VL  - 137
SP  - 106196
DO  - 10.1016/j.mssp.2021.106196
ER  - 
@article{
author = "Lojpur, Vesna and Joschko, Maximilian and Graf, Christina and Radmilović, Nadežda and Novaković, Mirjana and Validžić, Ivana",
year = "2022",
abstract = "Amorphous non-doped, iodine- and tin-doped Sb2S3 nanoparticles were prepared via the hot-injection method. HRTEM of amorphous undoped and doped samples revealed the formation of spherical nanoparticles of 20–50 nm diameter aggregated into clusters in the size of 100–200 nm. EDX analysis indicated the presence of desired elements in all observed samples. The bandgaps of non-doped and doped samples were determined from the reflectance spectra, and variations of the bandgaps, even small ones, are insufficient indications of doping. These uncertainties are further clarified by investigating crystalline undoped and doped samples in addition to the amorphous ones. XRPD results of the amorphous samples confirmed the amorphous structure, while Le Bail refinements of the crystalline samples show well-defined peaks from only the Sb2S3 phase, indicating a successful doping process. XPS measurements revealed that the phase of the undoped sample is free of impurities and that 3 d peaks of iodine and tin in the doped samples are present. The XPS valence bands shifted towards higher (I) or lower (Sn) binding energies compared to the undoped samples for both amorphous and crystalline samples, which is an additional support that incorporation of dopant ions in the Sb2S3 lattice took place.",
journal = "Materials Science in Semiconductor Processing",
title = "Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles",
volume = "137",
pages = "106196",
doi = "10.1016/j.mssp.2021.106196"
}
Lojpur, V., Joschko, M., Graf, C., Radmilović, N., Novaković, M.,& Validžić, I.. (2022). Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles. in Materials Science in Semiconductor Processing, 137, 106196.
https://doi.org/10.1016/j.mssp.2021.106196
Lojpur V, Joschko M, Graf C, Radmilović N, Novaković M, Validžić I. Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles. in Materials Science in Semiconductor Processing. 2022;137:106196.
doi:10.1016/j.mssp.2021.106196 .
Lojpur, Vesna, Joschko, Maximilian, Graf, Christina, Radmilović, Nadežda, Novaković, Mirjana, Validžić, Ivana, "Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles" in Materials Science in Semiconductor Processing, 137 (2022):106196,
https://doi.org/10.1016/j.mssp.2021.106196 . .

Temperature dependence of red emission in YPO4:Pr3+ nanopowders

Kahouadji, Badis; Guerbous, Lakhdar; Jovanović, Dragana J.; Dramićanin, Miroslav

(2022)

TY  - JOUR
AU  - Kahouadji, Badis
AU  - Guerbous, Lakhdar
AU  - Jovanović, Dragana J.
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9954
AB  - In order to compare spectroscopic properties between nanosized and that in single crystal form of YPO4:Pr3+, temperature-dependence of the red emission from 3P0 → 3H4 and 1D2 → 3H4 transitions of YPO4:0.1 at. % Pr3+ nanopowders has been investigated in details. The emission spectra of the sample in size of 20 nm, under selective excitation at 3P2, measured at different temperatures, T = 10, 100, 200 and 300 K have been recorded. The variation of emission intensity of each 3P0 → 3H4 and 1D2 → 3H4 against temperature has been investigated. Several spectral lines constitute 1D2 → 3H4 emission, assigned to transitions between 1D2 and 3H4 Stark levels are observed with no noticeable shifts between them and those observed at the single crystal. It is found that 1D2 → 3H4 emission intensity dominates that of 3P0 → 3H4 transition, pointing out the high efficiency of the multiphonon relaxation (MPR) process from 3P0 to 1D2. Fitting the temperature dependence of 3P0 → 3H4 emission intensity permits to estimate the phonons and their energies involved in non-radiatively transition between 3P0 and 1D2 levels, which are found different from single crystal. Also, fitting the multiphonon relaxation (MPR) rates against temperature, extracted from the measured 1D2 lifetime gives information that seven phonons can be involved to bridge the gap between 1D2 and 1G4. Furthermore, the possibility to use the YPO4: 0.1 at. % Pr3+ in the nano-thermometry application in temperature range T = 10–300 K was investigated.
T2  - Journal of Luminescence
T1  - Temperature dependence of red emission in YPO4:Pr3+ nanopowders
VL  - 241
SP  - 118499
DO  - 10.1016/j.jlumin.2021.118499
ER  - 
@article{
author = "Kahouadji, Badis and Guerbous, Lakhdar and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2022",
abstract = "In order to compare spectroscopic properties between nanosized and that in single crystal form of YPO4:Pr3+, temperature-dependence of the red emission from 3P0 → 3H4 and 1D2 → 3H4 transitions of YPO4:0.1 at. % Pr3+ nanopowders has been investigated in details. The emission spectra of the sample in size of 20 nm, under selective excitation at 3P2, measured at different temperatures, T = 10, 100, 200 and 300 K have been recorded. The variation of emission intensity of each 3P0 → 3H4 and 1D2 → 3H4 against temperature has been investigated. Several spectral lines constitute 1D2 → 3H4 emission, assigned to transitions between 1D2 and 3H4 Stark levels are observed with no noticeable shifts between them and those observed at the single crystal. It is found that 1D2 → 3H4 emission intensity dominates that of 3P0 → 3H4 transition, pointing out the high efficiency of the multiphonon relaxation (MPR) process from 3P0 to 1D2. Fitting the temperature dependence of 3P0 → 3H4 emission intensity permits to estimate the phonons and their energies involved in non-radiatively transition between 3P0 and 1D2 levels, which are found different from single crystal. Also, fitting the multiphonon relaxation (MPR) rates against temperature, extracted from the measured 1D2 lifetime gives information that seven phonons can be involved to bridge the gap between 1D2 and 1G4. Furthermore, the possibility to use the YPO4: 0.1 at. % Pr3+ in the nano-thermometry application in temperature range T = 10–300 K was investigated.",
journal = "Journal of Luminescence",
title = "Temperature dependence of red emission in YPO4:Pr3+ nanopowders",
volume = "241",
pages = "118499",
doi = "10.1016/j.jlumin.2021.118499"
}
Kahouadji, B., Guerbous, L., Jovanović, D. J.,& Dramićanin, M.. (2022). Temperature dependence of red emission in YPO4:Pr3+ nanopowders. in Journal of Luminescence, 241, 118499.
https://doi.org/10.1016/j.jlumin.2021.118499
Kahouadji B, Guerbous L, Jovanović DJ, Dramićanin M. Temperature dependence of red emission in YPO4:Pr3+ nanopowders. in Journal of Luminescence. 2022;241:118499.
doi:10.1016/j.jlumin.2021.118499 .
Kahouadji, Badis, Guerbous, Lakhdar, Jovanović, Dragana J., Dramićanin, Miroslav, "Temperature dependence of red emission in YPO4:Pr3+ nanopowders" in Journal of Luminescence, 241 (2022):118499,
https://doi.org/10.1016/j.jlumin.2021.118499 . .

TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis

Trtica, Milan; Kuzmanović, Miroslav; Savović, Jelena; Ranković, Dragan

(2022)

TY  - JOUR
AU  - Trtica, Milan
AU  - Kuzmanović, Miroslav
AU  - Savović, Jelena
AU  - Ranković, Dragan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9972
AB  - The interaction of a Transversely Excited Atmospheric (TEA) CO2 laser with a polymer polymethyl methacrylate (PMMA) sample in a vacuum ambiance was studied. The main goal was to demonstrate the feasibility of laser-induced breakdown spectroscopy (LIBS) to detect hydrogen. The generation of plasma over the PMMA surface, using a low laser intensity of ∼ 48 MW/cm2 and fluence of ∼ 16.5 J/cm2, required the application of a metal sub-target. Besides hydrogen, the recorded spectra were dominated by atomic lines of carbon and oxygen and band emission of the C2 and CN molecules. The electron number density and temperature (ionic, vibrational, and rotational) were evaluated to characterize the laser-induced plasma. In addition, PMMA micro-damages (diameter ∼ 45 µm) created by a multipulse laser ablation could find potential applications in sensor technologies.
T2  - Applied Surface Science
T2  - Applied Surface ScienceApplied Surface Science
T1  - TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis
VL  - 572
SP  - 151424
DO  - 10.1016/j.apsusc.2021.151424
ER  - 
@article{
author = "Trtica, Milan and Kuzmanović, Miroslav and Savović, Jelena and Ranković, Dragan",
year = "2022",
abstract = "The interaction of a Transversely Excited Atmospheric (TEA) CO2 laser with a polymer polymethyl methacrylate (PMMA) sample in a vacuum ambiance was studied. The main goal was to demonstrate the feasibility of laser-induced breakdown spectroscopy (LIBS) to detect hydrogen. The generation of plasma over the PMMA surface, using a low laser intensity of ∼ 48 MW/cm2 and fluence of ∼ 16.5 J/cm2, required the application of a metal sub-target. Besides hydrogen, the recorded spectra were dominated by atomic lines of carbon and oxygen and band emission of the C2 and CN molecules. The electron number density and temperature (ionic, vibrational, and rotational) were evaluated to characterize the laser-induced plasma. In addition, PMMA micro-damages (diameter ∼ 45 µm) created by a multipulse laser ablation could find potential applications in sensor technologies.",
journal = "Applied Surface Science, Applied Surface ScienceApplied Surface Science",
title = "TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis",
volume = "572",
pages = "151424",
doi = "10.1016/j.apsusc.2021.151424"
}
Trtica, M., Kuzmanović, M., Savović, J.,& Ranković, D.. (2022). TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis. in Applied Surface Science, 572, 151424.
https://doi.org/10.1016/j.apsusc.2021.151424
Trtica M, Kuzmanović M, Savović J, Ranković D. TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis. in Applied Surface Science. 2022;572:151424.
doi:10.1016/j.apsusc.2021.151424 .
Trtica, Milan, Kuzmanović, Miroslav, Savović, Jelena, Ranković, Dragan, "TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis" in Applied Surface Science, 572 (2022):151424,
https://doi.org/10.1016/j.apsusc.2021.151424 . .

Influence of Sn doping on the structural, magnetic, optical and photocatalytic properties of hematite (α-Fe2O3) nanoparticles

Popov, Nina; Ristić, Mira; Bošković, Marko; Perović, Marija; Musić, Svetozar; Stanković, Dalibor M.; Krehula, Stjepko

(2022)

TY  - JOUR
AU  - Popov, Nina
AU  - Ristić, Mira
AU  - Bošković, Marko
AU  - Perović, Marija
AU  - Musić, Svetozar
AU  - Stanković, Dalibor M.
AU  - Krehula, Stjepko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9929
AB  - Sn-doped hematite (α-Fe2O3) nanoparticles of fairly uniform and Sn-dependent size and shape were synthesized via a simple combination of hydrothermal co-precipitation and calcination. The effects of Sn doping on the unit cell size, crystallinity, particle size and shape, as well as the magnetic, optical and photocatalytic properties of hematite nanoparticles were analyzed. The incorporation of Sn4+ ions into the crystal structure of hematite was confirmed by determination of the unit cell expansion due to the replacement of octahedrally coordinated Fe3+ ions by significantly larger Sn4+ ions, as well as a substantially reduced hyperfine magnetic field due to magnetic dilution upon the substitution of non-magnetic Sn4+ ions for magnetic high-spin Fe3+ ions. Sn doping caused a decrease in length and width and an increase in thickness of elongated hematite nanoparticles. Fairly uniform Sn-doped hematite nanoellipsoids or nanocuboids were formed, depending on the Sn content. Temperature dependence of magnetization measurements showed the disappearance of the magnetic phase transition (Morin transition) in hematite upon Sn doping. Magnetic coercivity decreased upon Sn doping due to a decrease in shape anisotropy induced by the change in particle shape from nanorods to nanoellipsoids and nanocuboids. The optical and electronic properties of hematite nanoparticles were significantly affected by Sn doping – the absorption edge was shifted to higher wavelengths, while direct and indirect optical band gaps narrowed with the increasing Sn4+-for-Fe3+ substitution. Sn-doped hematite nanoellipsoids containing 4.3 mol% Sn exhibited a substantial visible light photocatalytic activity in the heterogeneous photo-Fenton process, but this activity significantly decreased with higher Sn doping.
T2  - Journal of Physics and Chemistry of Solids
T1  - Influence of Sn doping on the structural, magnetic, optical and photocatalytic properties of hematite (α-Fe2O3) nanoparticles
VL  - 161
SP  - 110372
DO  - 10.1016/j.jpcs.2021.110372
ER  - 
@article{
author = "Popov, Nina and Ristić, Mira and Bošković, Marko and Perović, Marija and Musić, Svetozar and Stanković, Dalibor M. and Krehula, Stjepko",
year = "2022",
abstract = "Sn-doped hematite (α-Fe2O3) nanoparticles of fairly uniform and Sn-dependent size and shape were synthesized via a simple combination of hydrothermal co-precipitation and calcination. The effects of Sn doping on the unit cell size, crystallinity, particle size and shape, as well as the magnetic, optical and photocatalytic properties of hematite nanoparticles were analyzed. The incorporation of Sn4+ ions into the crystal structure of hematite was confirmed by determination of the unit cell expansion due to the replacement of octahedrally coordinated Fe3+ ions by significantly larger Sn4+ ions, as well as a substantially reduced hyperfine magnetic field due to magnetic dilution upon the substitution of non-magnetic Sn4+ ions for magnetic high-spin Fe3+ ions. Sn doping caused a decrease in length and width and an increase in thickness of elongated hematite nanoparticles. Fairly uniform Sn-doped hematite nanoellipsoids or nanocuboids were formed, depending on the Sn content. Temperature dependence of magnetization measurements showed the disappearance of the magnetic phase transition (Morin transition) in hematite upon Sn doping. Magnetic coercivity decreased upon Sn doping due to a decrease in shape anisotropy induced by the change in particle shape from nanorods to nanoellipsoids and nanocuboids. The optical and electronic properties of hematite nanoparticles were significantly affected by Sn doping – the absorption edge was shifted to higher wavelengths, while direct and indirect optical band gaps narrowed with the increasing Sn4+-for-Fe3+ substitution. Sn-doped hematite nanoellipsoids containing 4.3 mol% Sn exhibited a substantial visible light photocatalytic activity in the heterogeneous photo-Fenton process, but this activity significantly decreased with higher Sn doping.",
journal = "Journal of Physics and Chemistry of Solids",
title = "Influence of Sn doping on the structural, magnetic, optical and photocatalytic properties of hematite (α-Fe2O3) nanoparticles",
volume = "161",
pages = "110372",
doi = "10.1016/j.jpcs.2021.110372"
}
Popov, N., Ristić, M., Bošković, M., Perović, M., Musić, S., Stanković, D. M.,& Krehula, S.. (2022). Influence of Sn doping on the structural, magnetic, optical and photocatalytic properties of hematite (α-Fe2O3) nanoparticles. in Journal of Physics and Chemistry of Solids, 161, 110372.
https://doi.org/10.1016/j.jpcs.2021.110372
Popov N, Ristić M, Bošković M, Perović M, Musić S, Stanković DM, Krehula S. Influence of Sn doping on the structural, magnetic, optical and photocatalytic properties of hematite (α-Fe2O3) nanoparticles. in Journal of Physics and Chemistry of Solids. 2022;161:110372.
doi:10.1016/j.jpcs.2021.110372 .
Popov, Nina, Ristić, Mira, Bošković, Marko, Perović, Marija, Musić, Svetozar, Stanković, Dalibor M., Krehula, Stjepko, "Influence of Sn doping on the structural, magnetic, optical and photocatalytic properties of hematite (α-Fe2O3) nanoparticles" in Journal of Physics and Chemistry of Solids, 161 (2022):110372,
https://doi.org/10.1016/j.jpcs.2021.110372 . .

Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals

Piotrowski, Wojciech M.; Kuchowicz, Maciej; Dramićanin, Miroslav; Marciniak, Lukasz

(2022)

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Kuchowicz, Maciej
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9890
AB  - Herein, we show that the substitution of Sr2+ by trivalent lanthanide ions (Lu3+, La3+, Tb3+) in SrTiO3 nanocrystals stabilizes and enhances Ti3+ near-infrared emission (around 800 nm). This emission occurs from the 6-fold coordinated Ti3+ luminescent centers that appear in the vacancy–Ti3+–O form after lanthanide doping into the Sr2+ site. The strong dependence of the Ti3+ emission on temperature provided means for the tailored chemical engineering of luminescent nanonthermometers able to read the temperature in three ways: from the changes in Ti3+ emission intensity, excited-state lifetime, and from the ratio of Tb3+ and Ti3+ emission intensities. We demonstrated the unprecedented temperature sensitivity of the lifetime-based luminescent thermometer (8.83% K−1) with SrTiO3:Tb3+, along with exceptional repeatability in measurements.
T2  - Chemical Engineering Journal
T1  - Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals
VL  - 428
SP  - 131165
DO  - 10.1016/j.cej.2021.131165
ER  - 
@article{
author = "Piotrowski, Wojciech M. and Kuchowicz, Maciej and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2022",
abstract = "Herein, we show that the substitution of Sr2+ by trivalent lanthanide ions (Lu3+, La3+, Tb3+) in SrTiO3 nanocrystals stabilizes and enhances Ti3+ near-infrared emission (around 800 nm). This emission occurs from the 6-fold coordinated Ti3+ luminescent centers that appear in the vacancy–Ti3+–O form after lanthanide doping into the Sr2+ site. The strong dependence of the Ti3+ emission on temperature provided means for the tailored chemical engineering of luminescent nanonthermometers able to read the temperature in three ways: from the changes in Ti3+ emission intensity, excited-state lifetime, and from the ratio of Tb3+ and Ti3+ emission intensities. We demonstrated the unprecedented temperature sensitivity of the lifetime-based luminescent thermometer (8.83% K−1) with SrTiO3:Tb3+, along with exceptional repeatability in measurements.",
journal = "Chemical Engineering Journal",
title = "Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals",
volume = "428",
pages = "131165",
doi = "10.1016/j.cej.2021.131165"
}
Piotrowski, W. M., Kuchowicz, M., Dramićanin, M.,& Marciniak, L.. (2022). Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals. in Chemical Engineering Journal, 428, 131165.
https://doi.org/10.1016/j.cej.2021.131165
Piotrowski WM, Kuchowicz M, Dramićanin M, Marciniak L. Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals. in Chemical Engineering Journal. 2022;428:131165.
doi:10.1016/j.cej.2021.131165 .
Piotrowski, Wojciech M., Kuchowicz, Maciej, Dramićanin, Miroslav, Marciniak, Lukasz, "Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals" in Chemical Engineering Journal, 428 (2022):131165,
https://doi.org/10.1016/j.cej.2021.131165 . .
3
1

Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition

Marciniak, Lukasz; Piotrowski, Wojciech; Szalkowski, Marcin; Kinzhybalo, Vasyl V.; Drozd, Marek; Dramićanin, Miroslav; Bednarkiewicz, Artur

(2022)

TY  - JOUR
AU  - Marciniak, Lukasz
AU  - Piotrowski, Wojciech
AU  - Szalkowski, Marcin
AU  - Kinzhybalo, Vasyl V.
AU  - Drozd, Marek
AU  - Dramićanin, Miroslav
AU  - Bednarkiewicz, Artur
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9912
AB  - Currently available temperature measurements or imaging at nano-micro scale are limited to fluorescent molecules and luminescent nanocrystals, whose spectral properties respond to temperature variation. The principle of operation of these conventional temperature probes is typically related to temperature induced multiphonon quenching or temperature dependent energy transfers, therefore, above 12%/K sensitivity and high thermal resolution remain a serious challenge. Here we demonstrate a novel class of highly sensitive thermographic phosphors operating in room temperature range with sub-kelvin thermal resolution, whose temperature readings are reproducible, luminescence is photostable and brightness is not compromised by thermal quenching. Corroborated with phase transition structural characterization and high spatio-temporal temperature imaging, we demonstrated that optically active europium ions are highly and smoothly susceptible to monoclinic to tetragonal phase transition in nanocrystalline (54 ± 14 nm) LiYO2 host, which is evidenced by changed number and the splitting of Stark components as well as by smooth variation of contribution between magnetic and electric dipole transitions. Further, reducing the size of phosphor from bulk to nanocrystalline matrix, shifted the phase transition temperature from 100 °C down to room temperature. These findings provide insights into the mechanism underlaying phase transition based luminescence nanothermometry and motivate future research toward new, highly sensitive, high temporal and spatial resolution nano-thermometers aiming at precise studying heat generation or diffusion in numerous biological and technology applications.
T2  - Chemical Engineering Journal
T1  - Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition
VL  - 427
SP  - 131941
DO  - 10.1016/j.cej.2021.131941
ER  - 
@article{
author = "Marciniak, Lukasz and Piotrowski, Wojciech and Szalkowski, Marcin and Kinzhybalo, Vasyl V. and Drozd, Marek and Dramićanin, Miroslav and Bednarkiewicz, Artur",
year = "2022",
abstract = "Currently available temperature measurements or imaging at nano-micro scale are limited to fluorescent molecules and luminescent nanocrystals, whose spectral properties respond to temperature variation. The principle of operation of these conventional temperature probes is typically related to temperature induced multiphonon quenching or temperature dependent energy transfers, therefore, above 12%/K sensitivity and high thermal resolution remain a serious challenge. Here we demonstrate a novel class of highly sensitive thermographic phosphors operating in room temperature range with sub-kelvin thermal resolution, whose temperature readings are reproducible, luminescence is photostable and brightness is not compromised by thermal quenching. Corroborated with phase transition structural characterization and high spatio-temporal temperature imaging, we demonstrated that optically active europium ions are highly and smoothly susceptible to monoclinic to tetragonal phase transition in nanocrystalline (54 ± 14 nm) LiYO2 host, which is evidenced by changed number and the splitting of Stark components as well as by smooth variation of contribution between magnetic and electric dipole transitions. Further, reducing the size of phosphor from bulk to nanocrystalline matrix, shifted the phase transition temperature from 100 °C down to room temperature. These findings provide insights into the mechanism underlaying phase transition based luminescence nanothermometry and motivate future research toward new, highly sensitive, high temporal and spatial resolution nano-thermometers aiming at precise studying heat generation or diffusion in numerous biological and technology applications.",
journal = "Chemical Engineering Journal",
title = "Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition",
volume = "427",
pages = "131941",
doi = "10.1016/j.cej.2021.131941"
}
Marciniak, L., Piotrowski, W., Szalkowski, M., Kinzhybalo, V. V., Drozd, M., Dramićanin, M.,& Bednarkiewicz, A.. (2022). Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition. in Chemical Engineering Journal, 427, 131941.
https://doi.org/10.1016/j.cej.2021.131941
Marciniak L, Piotrowski W, Szalkowski M, Kinzhybalo VV, Drozd M, Dramićanin M, Bednarkiewicz A. Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition. in Chemical Engineering Journal. 2022;427:131941.
doi:10.1016/j.cej.2021.131941 .
Marciniak, Lukasz, Piotrowski, Wojciech, Szalkowski, Marcin, Kinzhybalo, Vasyl V., Drozd, Marek, Dramićanin, Miroslav, Bednarkiewicz, Artur, "Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition" in Chemical Engineering Journal, 427 (2022):131941,
https://doi.org/10.1016/j.cej.2021.131941 . .

Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings

Riđošić, Marija; Nikolić, Nebojša D.; Salicio-Paz, Asier; García-Lecina, Eva; Živković, Ljiljana; Bajat, Jelena B.

(2021)

TY  - JOUR
AU  - Riđošić, Marija
AU  - Nikolić, Nebojša D.
AU  - Salicio-Paz, Asier
AU  - García-Lecina, Eva
AU  - Živković, Ljiljana
AU  - Bajat, Jelena B.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9657
AB  - Electrodeposition and characterization of novel ceria-doped Zn-Co composite coatings was the main goal of this research. Electrodeposited composite coatings were compared to pure Zn-Co coatings obtained under the same conditions. The effect of two ceria sources, powder and home-made sol, on the morphology and corrosion resistance of the composite coatings was determined. During the electrodeposition process the plating solution was successfully agitated in an ultrasound bath. The source of the particles was found to influence the stability and dispersity of plating solutions. The application of ceria sol resulted in an increase of the ceria content in the resulting coating and favored the refinement from cauliflower-like morphology (Zn-Co) to uniform and compact coral-like structure (Zn-Co-CeO2 sol). The corrosion resistance of the composite coatings was enhanced compared to bare Zn-Co as evidenced by electrochemical impedance spectroscopy and scanning Kelvin probe results. Zn-Co doped with ceria particles originating from ceria sol exhibited superior corrosion resistance compared to Zn-Co-CeO2 (powder) coatings. The self-healing rate of artificial defect was calculated based on measured Volta potential difference for which Zn-Co-CeO2 (sol) coatings exhibited a self-healing rate of 73.28% in a chloride-rich environment.
T2  - Metals
T1  - Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings
VL  - 11
IS  - 5
SP  - 704
DO  - 10.3390/met11050704
ER  - 
@article{
author = "Riđošić, Marija and Nikolić, Nebojša D. and Salicio-Paz, Asier and García-Lecina, Eva and Živković, Ljiljana and Bajat, Jelena B.",
year = "2021",
abstract = "Electrodeposition and characterization of novel ceria-doped Zn-Co composite coatings was the main goal of this research. Electrodeposited composite coatings were compared to pure Zn-Co coatings obtained under the same conditions. The effect of two ceria sources, powder and home-made sol, on the morphology and corrosion resistance of the composite coatings was determined. During the electrodeposition process the plating solution was successfully agitated in an ultrasound bath. The source of the particles was found to influence the stability and dispersity of plating solutions. The application of ceria sol resulted in an increase of the ceria content in the resulting coating and favored the refinement from cauliflower-like morphology (Zn-Co) to uniform and compact coral-like structure (Zn-Co-CeO2 sol). The corrosion resistance of the composite coatings was enhanced compared to bare Zn-Co as evidenced by electrochemical impedance spectroscopy and scanning Kelvin probe results. Zn-Co doped with ceria particles originating from ceria sol exhibited superior corrosion resistance compared to Zn-Co-CeO2 (powder) coatings. The self-healing rate of artificial defect was calculated based on measured Volta potential difference for which Zn-Co-CeO2 (sol) coatings exhibited a self-healing rate of 73.28% in a chloride-rich environment.",
journal = "Metals",
title = "Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings",
volume = "11",
number = "5",
pages = "704",
doi = "10.3390/met11050704"
}
Riđošić, M., Nikolić, N. D., Salicio-Paz, A., García-Lecina, E., Živković, L.,& Bajat, J. B.. (2021). Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings. in Metals, 11(5), 704.
https://doi.org/10.3390/met11050704
Riđošić M, Nikolić ND, Salicio-Paz A, García-Lecina E, Živković L, Bajat JB. Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings. in Metals. 2021;11(5):704.
doi:10.3390/met11050704 .
Riđošić, Marija, Nikolić, Nebojša D., Salicio-Paz, Asier, García-Lecina, Eva, Živković, Ljiljana, Bajat, Jelena B., "Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings" in Metals, 11, no. 5 (2021):704,
https://doi.org/10.3390/met11050704 . .
1
1
1

Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration

Riđošić, Marija; Bučko, Mihael; Salicio-Paz, Asier; García-Lecina, Eva; Živković, Ljiljana; Bajat, Jelena

(2021)

TY  - JOUR
AU  - Riđošić, Marija
AU  - Bučko, Mihael
AU  - Salicio-Paz, Asier
AU  - García-Lecina, Eva
AU  - Živković, Ljiljana
AU  - Bajat, Jelena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9905
AB  - Novel Zn-Co-CeO2 protective composite coatings were deposited successfully from chloride plating solutions. Two different types of ceria sources were used and compared: commercial ceria powder and home-made ceria sol. Electrodeposition was performed by a direct current in the range of 1–8 A dm−2. Two different agitation modes were used and compared, magnetic stirring and ultrasound-assisted stirring (US). The influence of magnetic stirring on the stability of the related plating baths was evaluated via a dynamic scattering method. The results pointed to better stability of the prepared ceria sol. The morphology of the composite coatings was examined by scanning electron microscopy (SEM), and particle content was determined by energy-dispersive X-ray spectroscopy (EDS). The results showed that the increase in the deposition current density was not beneficial to the coating morphology and particle content. The corrosion behavior of the Zn-Co-CeO2 composite coatings was analyzed and compared by electrochemical impedance spectroscopy and polarization resistance. The ultrasound-assisted electrodeposition at small current densities was favorable for obtaining composite coatings with enhanced corrosion stability. The protection was more effective when US was applied and, additionally, upon utilization of ceria sol as a particle source, which was revealed by higher polarization resistance and greater low-frequency impedance modulus values for sol-derived composite coatings deposited under ultrasound.
T2  - Molecules
T1  - Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration
VL  - 26
IS  - 15
SP  - 4578
DO  - 10.3390/molecules26154578
ER  - 
@article{
author = "Riđošić, Marija and Bučko, Mihael and Salicio-Paz, Asier and García-Lecina, Eva and Živković, Ljiljana and Bajat, Jelena",
year = "2021",
abstract = "Novel Zn-Co-CeO2 protective composite coatings were deposited successfully from chloride plating solutions. Two different types of ceria sources were used and compared: commercial ceria powder and home-made ceria sol. Electrodeposition was performed by a direct current in the range of 1–8 A dm−2. Two different agitation modes were used and compared, magnetic stirring and ultrasound-assisted stirring (US). The influence of magnetic stirring on the stability of the related plating baths was evaluated via a dynamic scattering method. The results pointed to better stability of the prepared ceria sol. The morphology of the composite coatings was examined by scanning electron microscopy (SEM), and particle content was determined by energy-dispersive X-ray spectroscopy (EDS). The results showed that the increase in the deposition current density was not beneficial to the coating morphology and particle content. The corrosion behavior of the Zn-Co-CeO2 composite coatings was analyzed and compared by electrochemical impedance spectroscopy and polarization resistance. The ultrasound-assisted electrodeposition at small current densities was favorable for obtaining composite coatings with enhanced corrosion stability. The protection was more effective when US was applied and, additionally, upon utilization of ceria sol as a particle source, which was revealed by higher polarization resistance and greater low-frequency impedance modulus values for sol-derived composite coatings deposited under ultrasound.",
journal = "Molecules",
title = "Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration",
volume = "26",
number = "15",
pages = "4578",
doi = "10.3390/molecules26154578"
}
Riđošić, M., Bučko, M., Salicio-Paz, A., García-Lecina, E., Živković, L.,& Bajat, J.. (2021). Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration. in Molecules, 26(15), 4578.
https://doi.org/10.3390/molecules26154578
Riđošić M, Bučko M, Salicio-Paz A, García-Lecina E, Živković L, Bajat J. Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration. in Molecules. 2021;26(15):4578.
doi:10.3390/molecules26154578 .
Riđošić, Marija, Bučko, Mihael, Salicio-Paz, Asier, García-Lecina, Eva, Živković, Ljiljana, Bajat, Jelena, "Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration" in Molecules, 26, no. 15 (2021):4578,
https://doi.org/10.3390/molecules26154578 . .

Bactericidal and antioxidant bacterial cellulose hydrogels doped with chitosan as potential urinary tract infection biomedical agent

Zmejkoski, Danica; Marković, Zoran M.; Zdravković, Nemanja M.; Trišić, Dijana; Budimir, Milica; Kuzman, Sanja; Kozyrovska, Natalia O.; Orlovska, Iryna V.; Bugárová, Nikol; Petrović, Đorđe; Kováčová, Mária; Kleinová, Angela; Špitalský, Zdeno; Pavlović, Vladimir B.; Todorović-Marković, Biljana

(2021)

TY  - JOUR
AU  - Zmejkoski, Danica
AU  - Marković, Zoran M.
AU  - Zdravković, Nemanja M.
AU  - Trišić, Dijana
AU  - Budimir, Milica
AU  - Kuzman, Sanja
AU  - Kozyrovska, Natalia O.
AU  - Orlovska, Iryna V.
AU  - Bugárová, Nikol
AU  - Petrović, Đorđe
AU  - Kováčová, Mária
AU  - Kleinová, Angela
AU  - Špitalský, Zdeno
AU  - Pavlović, Vladimir B.
AU  - Todorović-Marković, Biljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9143
AB  - Therapy of bacterial urinary tract infections (UTIs) and catheter associated urinary tract infections (CAUTIs) is still a great challenge because of the resistance of bacteria to nowadays used antibiotics and encrustation of catheters. Bacterial cellulose (BC) as a biocompatible material with a high porosity allows incorporation of different materials in its three dimensional network structure. In this work a low molecular weight chitosan (Chi) polymer is incorporated in BC with different concentrations. Different characterization techniques are used to investigate structural and optical properties of these composites. Radical scavenging activity test shows moderate antioxidant activity of these biocompatible composites whereasin vitrorelease test shows that 13.3% of chitosan is released after 72 h. Antibacterial testing of BC-Chi composites conducted on Gram-positive and Gram-negative bacteria causing UTIs and CAUTIs (Escherichia coli,Pseudomonas aeruginosa,Klebsiella pneumoniae) and encrustation (Proteus mirabilis) show bactericidal effect. The morphology analysis of bacteria after the application of BC-Chi shows that they are flattened with a rough surface, with a tendency to agglomerate and with decreased length and width. All obtained results show that BC-Chi composites might be considered as potential biomedical agents in treatment of UTIs and CAUTIs and as a urinary catheter coating in encrustation prevention.
T2  - RSC Advances
T1  - Bactericidal and antioxidant bacterial cellulose hydrogels doped with chitosan as potential urinary tract infection biomedical agent
VL  - 11
IS  - 15
SP  - 8559
EP  - 8568
DO  - 10.1039/D0RA10782D
ER  - 
@article{
author = "Zmejkoski, Danica and Marković, Zoran M. and Zdravković, Nemanja M. and Trišić, Dijana and Budimir, Milica and Kuzman, Sanja and Kozyrovska, Natalia O. and Orlovska, Iryna V. and Bugárová, Nikol and Petrović, Đorđe and Kováčová, Mária and Kleinová, Angela and Špitalský, Zdeno and Pavlović, Vladimir B. and Todorović-Marković, Biljana",
year = "2021",
abstract = "Therapy of bacterial urinary tract infections (UTIs) and catheter associated urinary tract infections (CAUTIs) is still a great challenge because of the resistance of bacteria to nowadays used antibiotics and encrustation of catheters. Bacterial cellulose (BC) as a biocompatible material with a high porosity allows incorporation of different materials in its three dimensional network structure. In this work a low molecular weight chitosan (Chi) polymer is incorporated in BC with different concentrations. Different characterization techniques are used to investigate structural and optical properties of these composites. Radical scavenging activity test shows moderate antioxidant activity of these biocompatible composites whereasin vitrorelease test shows that 13.3% of chitosan is released after 72 h. Antibacterial testing of BC-Chi composites conducted on Gram-positive and Gram-negative bacteria causing UTIs and CAUTIs (Escherichia coli,Pseudomonas aeruginosa,Klebsiella pneumoniae) and encrustation (Proteus mirabilis) show bactericidal effect. The morphology analysis of bacteria after the application of BC-Chi shows that they are flattened with a rough surface, with a tendency to agglomerate and with decreased length and width. All obtained results show that BC-Chi composites might be considered as potential biomedical agents in treatment of UTIs and CAUTIs and as a urinary catheter coating in encrustation prevention.",
journal = "RSC Advances",
title = "Bactericidal and antioxidant bacterial cellulose hydrogels doped with chitosan as potential urinary tract infection biomedical agent",
volume = "11",
number = "15",
pages = "8559-8568",
doi = "10.1039/D0RA10782D"
}
Zmejkoski, D., Marković, Z. M., Zdravković, N. M., Trišić, D., Budimir, M., Kuzman, S., Kozyrovska, N. O., Orlovska, I. V., Bugárová, N., Petrović, Đ., Kováčová, M., Kleinová, A., Špitalský, Z., Pavlović, V. B.,& Todorović-Marković, B.. (2021). Bactericidal and antioxidant bacterial cellulose hydrogels doped with chitosan as potential urinary tract infection biomedical agent. in RSC Advances, 11(15), 8559-8568.
https://doi.org/10.1039/D0RA10782D
Zmejkoski D, Marković ZM, Zdravković NM, Trišić D, Budimir M, Kuzman S, Kozyrovska NO, Orlovska IV, Bugárová N, Petrović Đ, Kováčová M, Kleinová A, Špitalský Z, Pavlović VB, Todorović-Marković B. Bactericidal and antioxidant bacterial cellulose hydrogels doped with chitosan as potential urinary tract infection biomedical agent. in RSC Advances. 2021;11(15):8559-8568.
doi:10.1039/D0RA10782D .
Zmejkoski, Danica, Marković, Zoran M., Zdravković, Nemanja M., Trišić, Dijana, Budimir, Milica, Kuzman, Sanja, Kozyrovska, Natalia O., Orlovska, Iryna V., Bugárová, Nikol, Petrović, Đorđe, Kováčová, Mária, Kleinová, Angela, Špitalský, Zdeno, Pavlović, Vladimir B., Todorović-Marković, Biljana, "Bactericidal and antioxidant bacterial cellulose hydrogels doped with chitosan as potential urinary tract infection biomedical agent" in RSC Advances, 11, no. 15 (2021):8559-8568,
https://doi.org/10.1039/D0RA10782D . .
2
1
2

Photoactive and antioxidant nanochitosan dots/biocellulose hydrogels for wound healing treatment

Zmejkoski, Danica; Marković, Zoran M.; Budimir, Milica; Zdravković, Nemanja M.; Trišić, Dijana ; Bugárová, Nikol; Danko, Martin; Kozyrovska, Natalia O.; Špitalský, Zdeno; Kleinová, Angela; Kuzman, Sanja; Pavlović, Vladimir B.; Todorović-Marković, Biljana

(2021)

TY  - JOUR
AU  - Zmejkoski, Danica
AU  - Marković, Zoran M.
AU  - Budimir, Milica
AU  - Zdravković, Nemanja M.
AU  - Trišić, Dijana 
AU  - Bugárová, Nikol
AU  - Danko, Martin
AU  - Kozyrovska, Natalia O.
AU  - Špitalský, Zdeno
AU  - Kleinová, Angela
AU  - Kuzman, Sanja
AU  - Pavlović, Vladimir B.
AU  - Todorović-Marković, Biljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9566
AB  - Bacterial infection and their resistance to known antibiotics delays wound healing. In this study, nanochitosan dots (nChiD) produced by gamma irradiation have been encapsulated in bacterial cellulose (BC) polymer matrix to study the antibacterial potentials of these nanocomposites and their possible usage in wound healing treatment (scratch assay). Detailed analyses show that nChiDs have disc-like shape and average diameter in the range of 40 to 60 nm depending of the applied dose. All nChiDs as well as BC-nChiD nanocomposites emit green photoluminescence independently on the excitation wavelengths. The new designed nanocomposites do not have a cytotoxic effect; antioxidant analysis shows their moderate radical scavenging activity whereas antibacterial properties show significant growth inhibition of strains mostly found in difficult-to-heal wounds. The obtained results confirm that new designed BC-nChiD nanocomposites might be potential agent in wound healing treatment. © 2021 Elsevier B.V.
T2  - Materials Science and Engineering: C
T1  - Photoactive and antioxidant nanochitosan dots/biocellulose hydrogels for wound healing treatment
VL  - 122
SP  - 111925
DO  - 10.1016/j.msec.2021.111925
ER  - 
@article{
author = "Zmejkoski, Danica and Marković, Zoran M. and Budimir, Milica and Zdravković, Nemanja M. and Trišić, Dijana  and Bugárová, Nikol and Danko, Martin and Kozyrovska, Natalia O. and Špitalský, Zdeno and Kleinová, Angela and Kuzman, Sanja and Pavlović, Vladimir B. and Todorović-Marković, Biljana",
year = "2021",
abstract = "Bacterial infection and their resistance to known antibiotics delays wound healing. In this study, nanochitosan dots (nChiD) produced by gamma irradiation have been encapsulated in bacterial cellulose (BC) polymer matrix to study the antibacterial potentials of these nanocomposites and their possible usage in wound healing treatment (scratch assay). Detailed analyses show that nChiDs have disc-like shape and average diameter in the range of 40 to 60 nm depending of the applied dose. All nChiDs as well as BC-nChiD nanocomposites emit green photoluminescence independently on the excitation wavelengths. The new designed nanocomposites do not have a cytotoxic effect; antioxidant analysis shows their moderate radical scavenging activity whereas antibacterial properties show significant growth inhibition of strains mostly found in difficult-to-heal wounds. The obtained results confirm that new designed BC-nChiD nanocomposites might be potential agent in wound healing treatment. © 2021 Elsevier B.V.",
journal = "Materials Science and Engineering: C",
title = "Photoactive and antioxidant nanochitosan dots/biocellulose hydrogels for wound healing treatment",
volume = "122",
pages = "111925",
doi = "10.1016/j.msec.2021.111925"
}
Zmejkoski, D., Marković, Z. M., Budimir, M., Zdravković, N. M., Trišić, D., Bugárová, N., Danko, M., Kozyrovska, N. O., Špitalský, Z., Kleinová, A., Kuzman, S., Pavlović, V. B.,& Todorović-Marković, B.. (2021). Photoactive and antioxidant nanochitosan dots/biocellulose hydrogels for wound healing treatment. in Materials Science and Engineering: C, 122, 111925.
https://doi.org/10.1016/j.msec.2021.111925
Zmejkoski D, Marković ZM, Budimir M, Zdravković NM, Trišić D, Bugárová N, Danko M, Kozyrovska NO, Špitalský Z, Kleinová A, Kuzman S, Pavlović VB, Todorović-Marković B. Photoactive and antioxidant nanochitosan dots/biocellulose hydrogels for wound healing treatment. in Materials Science and Engineering: C. 2021;122:111925.
doi:10.1016/j.msec.2021.111925 .
Zmejkoski, Danica, Marković, Zoran M., Budimir, Milica, Zdravković, Nemanja M., Trišić, Dijana , Bugárová, Nikol, Danko, Martin, Kozyrovska, Natalia O., Špitalský, Zdeno, Kleinová, Angela, Kuzman, Sanja, Pavlović, Vladimir B., Todorović-Marković, Biljana, "Photoactive and antioxidant nanochitosan dots/biocellulose hydrogels for wound healing treatment" in Materials Science and Engineering: C, 122 (2021):111925,
https://doi.org/10.1016/j.msec.2021.111925 . .
3
1
1

One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications

Kepić, Dejan P.; Kleut, Duška; Marković, Zoran M.; Bajuk-Bogdanović, Danica; Pavlović, Vladimir B.; Krmpot, Aleksandar; Lekić, Marina; Jovanović, Dragana J.; Todorović-Marković, Biljana

(2021)

TY  - JOUR
AU  - Kepić, Dejan P.
AU  - Kleut, Duška
AU  - Marković, Zoran M.
AU  - Bajuk-Bogdanović, Danica
AU  - Pavlović, Vladimir B.
AU  - Krmpot, Aleksandar
AU  - Lekić, Marina
AU  - Jovanović, Dragana J.
AU  - Todorović-Marković, Biljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9568
AB  - Graphene is an excellent material to anchor metal nanoparticles due to its large surface area. In this paper, we report the use of electrochemically exfoliated graphene as support to anchor gold nanoparticles (Au NPs). Au NPs are synthesized via the reduction of chloroauric acid under gamma irradiation at low doses of 1, 5, and 10 kGy and directly deposited onto the graphene surface, making this procedure simple and fast. Good water dispersibility of exfoliated graphene, due to the presence of oxygen-containing functional groups in the structure of graphene, provides long-term stability of Au NPs - graphene composite dispersions. The majority of the Au NPs obtained by this method have sizes of up to 40 nm, while the increase in the applied dose leads to an increase in the amount of smaller nanoparticles. The increase of temperature of the prepared composite material upon irradiation with an 808 nm continuous wave laser was monitored. All samples show a temperature increase between 21.5 and 25.6 °C for 10 min of the laser exposure, which indicates that Au NPs - graphene composite can effectively be used in photothermal treatment for cancer therapy. © 2021 Elsevier Inc.
T2  - Materials Characterization
T1  - One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications
VL  - 173
SP  - 110944
DO  - 10.1016/j.matchar.2021.110944
ER  - 
@article{
author = "Kepić, Dejan P. and Kleut, Duška and Marković, Zoran M. and Bajuk-Bogdanović, Danica and Pavlović, Vladimir B. and Krmpot, Aleksandar and Lekić, Marina and Jovanović, Dragana J. and Todorović-Marković, Biljana",
year = "2021",
abstract = "Graphene is an excellent material to anchor metal nanoparticles due to its large surface area. In this paper, we report the use of electrochemically exfoliated graphene as support to anchor gold nanoparticles (Au NPs). Au NPs are synthesized via the reduction of chloroauric acid under gamma irradiation at low doses of 1, 5, and 10 kGy and directly deposited onto the graphene surface, making this procedure simple and fast. Good water dispersibility of exfoliated graphene, due to the presence of oxygen-containing functional groups in the structure of graphene, provides long-term stability of Au NPs - graphene composite dispersions. The majority of the Au NPs obtained by this method have sizes of up to 40 nm, while the increase in the applied dose leads to an increase in the amount of smaller nanoparticles. The increase of temperature of the prepared composite material upon irradiation with an 808 nm continuous wave laser was monitored. All samples show a temperature increase between 21.5 and 25.6 °C for 10 min of the laser exposure, which indicates that Au NPs - graphene composite can effectively be used in photothermal treatment for cancer therapy. © 2021 Elsevier Inc.",
journal = "Materials Characterization",
title = "One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications",
volume = "173",
pages = "110944",
doi = "10.1016/j.matchar.2021.110944"
}
Kepić, D. P., Kleut, D., Marković, Z. M., Bajuk-Bogdanović, D., Pavlović, V. B., Krmpot, A., Lekić, M., Jovanović, D. J.,& Todorović-Marković, B.. (2021). One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications. in Materials Characterization, 173, 110944.
https://doi.org/10.1016/j.matchar.2021.110944
Kepić DP, Kleut D, Marković ZM, Bajuk-Bogdanović D, Pavlović VB, Krmpot A, Lekić M, Jovanović DJ, Todorović-Marković B. One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications. in Materials Characterization. 2021;173:110944.
doi:10.1016/j.matchar.2021.110944 .
Kepić, Dejan P., Kleut, Duška, Marković, Zoran M., Bajuk-Bogdanović, Danica, Pavlović, Vladimir B., Krmpot, Aleksandar, Lekić, Marina, Jovanović, Dragana J., Todorović-Marković, Biljana, "One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications" in Materials Characterization, 173 (2021):110944,
https://doi.org/10.1016/j.matchar.2021.110944 . .

Enhanced visible light-triggered antibacterial activity of carbon quantum dots/polyurethane nanocomposites by gamma rays induced pre-treatment

Budimir, Milica; Marković, Zoran M.; Vajdak, Jan; Jovanović, Svetlana P.; Kubat, Pavel; Humpoliček, Petr; Mičušik, Matej; Danko, Martin; Barras, Alexandre; Milivojević, Dušan; Špitalsky, Zdenko; Boukherroub, Rabah; Todorović-Marković, Biljana

(2021)

TY  - JOUR
AU  - Budimir, Milica
AU  - Marković, Zoran M.
AU  - Vajdak, Jan
AU  - Jovanović, Svetlana P.
AU  - Kubat, Pavel
AU  - Humpoliček, Petr
AU  - Mičušik, Matej
AU  - Danko, Martin
AU  - Barras, Alexandre
AU  - Milivojević, Dušan
AU  - Špitalsky, Zdenko
AU  - Boukherroub, Rabah
AU  - Todorović-Marković, Biljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9746
AB  - Persistent microbial contamination of medical implant surfaces is becoming a serious threat to public health. This is principally due to antibiotic-resistant bacterial strains and the formation of bacterial biofilms. The development of novel antibacterial materials that will effectively fight both Gram-positive and Gram-negative bacteria and prevent biofilm formation represents a big challenge for researchers in the last few decades. In the present work, we report an antibacterial hydrophobic carbon quantum dots/polyurethane nanocomposite (hCQD-PU), with enhanced antibacterial properties induced by pre-treatment with gamma-irradiation. Hydrophobic quantum dots (hCQDs), which are capable of generating reactive oxygen species (ROS) upon irradiation with low-power blue light (470 nm), have been integrated into the polyurethane (PU) polymer matrix to form a photoactive nanocomposite. To modify its physical and chemical properties and improve its antibacterial efficacy, various doses of gamma irradiation (1, 10, and 200 kGy) in the air environment were applied to the formed nanocomposite. Gamma-irradiation pre-treatment significantly influenced the rise in ROS production, therefore, the prooxidative activity under the blue-light illumination of hCQD-PU was also significantly improved. The best antibacterial activity was demonstrated by the hCQD-PU nanocomposite irradiated with a dose of 200 kGy, with the complete eradication of Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) bacteria after 15 min of exposure to the blue lamp. © 2021 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - Enhanced visible light-triggered antibacterial activity of carbon quantum dots/polyurethane nanocomposites by gamma rays induced pre-treatment
VL  - 185
SP  - 109499
DO  - 10.1016/j.radphyschem.2021.109499
ER  - 
@article{
author = "Budimir, Milica and Marković, Zoran M. and Vajdak, Jan and Jovanović, Svetlana P. and Kubat, Pavel and Humpoliček, Petr and Mičušik, Matej and Danko, Martin and Barras, Alexandre and Milivojević, Dušan and Špitalsky, Zdenko and Boukherroub, Rabah and Todorović-Marković, Biljana",
year = "2021",
abstract = "Persistent microbial contamination of medical implant surfaces is becoming a serious threat to public health. This is principally due to antibiotic-resistant bacterial strains and the formation of bacterial biofilms. The development of novel antibacterial materials that will effectively fight both Gram-positive and Gram-negative bacteria and prevent biofilm formation represents a big challenge for researchers in the last few decades. In the present work, we report an antibacterial hydrophobic carbon quantum dots/polyurethane nanocomposite (hCQD-PU), with enhanced antibacterial properties induced by pre-treatment with gamma-irradiation. Hydrophobic quantum dots (hCQDs), which are capable of generating reactive oxygen species (ROS) upon irradiation with low-power blue light (470 nm), have been integrated into the polyurethane (PU) polymer matrix to form a photoactive nanocomposite. To modify its physical and chemical properties and improve its antibacterial efficacy, various doses of gamma irradiation (1, 10, and 200 kGy) in the air environment were applied to the formed nanocomposite. Gamma-irradiation pre-treatment significantly influenced the rise in ROS production, therefore, the prooxidative activity under the blue-light illumination of hCQD-PU was also significantly improved. The best antibacterial activity was demonstrated by the hCQD-PU nanocomposite irradiated with a dose of 200 kGy, with the complete eradication of Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) bacteria after 15 min of exposure to the blue lamp. © 2021 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Enhanced visible light-triggered antibacterial activity of carbon quantum dots/polyurethane nanocomposites by gamma rays induced pre-treatment",
volume = "185",
pages = "109499",
doi = "10.1016/j.radphyschem.2021.109499"
}
Budimir, M., Marković, Z. M., Vajdak, J., Jovanović, S. P., Kubat, P., Humpoliček, P., Mičušik, M., Danko, M., Barras, A., Milivojević, D., Špitalsky, Z., Boukherroub, R.,& Todorović-Marković, B.. (2021). Enhanced visible light-triggered antibacterial activity of carbon quantum dots/polyurethane nanocomposites by gamma rays induced pre-treatment. in Radiation Physics and Chemistry, 185, 109499.
https://doi.org/10.1016/j.radphyschem.2021.109499
Budimir M, Marković ZM, Vajdak J, Jovanović SP, Kubat P, Humpoliček P, Mičušik M, Danko M, Barras A, Milivojević D, Špitalsky Z, Boukherroub R, Todorović-Marković B. Enhanced visible light-triggered antibacterial activity of carbon quantum dots/polyurethane nanocomposites by gamma rays induced pre-treatment. in Radiation Physics and Chemistry. 2021;185:109499.
doi:10.1016/j.radphyschem.2021.109499 .
Budimir, Milica, Marković, Zoran M., Vajdak, Jan, Jovanović, Svetlana P., Kubat, Pavel, Humpoliček, Petr, Mičušik, Matej, Danko, Martin, Barras, Alexandre, Milivojević, Dušan, Špitalsky, Zdenko, Boukherroub, Rabah, Todorović-Marković, Biljana, "Enhanced visible light-triggered antibacterial activity of carbon quantum dots/polyurethane nanocomposites by gamma rays induced pre-treatment" in Radiation Physics and Chemistry, 185 (2021):109499,
https://doi.org/10.1016/j.radphyschem.2021.109499 . .
1

Chronic wound dressings – Pathogenic bacteria anti-biofilm treatment with bacterial cellulose-chitosan polymer or bacterial cellulose-chitosan dots composite hydrogels

Zmejkoski, Danica Z.; Zdravković, Nemanja M.; Trišić, Dijana D.; Budimir, Milica D.; Marković, Zoran M.; Kozyrovska, Natalia O.; Todorović-Marković, Biljana

(2021)

TY  - JOUR
AU  - Zmejkoski, Danica Z.
AU  - Zdravković, Nemanja M.
AU  - Trišić, Dijana D.
AU  - Budimir, Milica D.
AU  - Marković, Zoran M.
AU  - Kozyrovska, Natalia O.
AU  - Todorović-Marković, Biljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9957
AB  - Since the pathogenic bacteria biofilms are involved in 70% of chronic infections and their resistance to antibiotics is increased, the research in this field requires new healing agents. New composite hydrogels were designed as potential chronic wound dressings composed of bacterial cellulose (BC) with chitosan polymer (Chi) – BC-Chi and chitosan nanoparticles (nChiD) – BC-nChiD. nChiD were obtained by gamma irradiation at doses: 20, 40 and 60 kGy. Physical and chemical analyses showed incorporation of Chi and encapsulation of nChiD into BC. The BC-Chi has the highest average surface roughness. BC-nChiD hydrogels show an irradiated dose-dependent increase of average surface roughness. New composite hydrogels are biocompatible with excellent anti-biofilm potential with up to 90% reduction of viable biofilm and up to 65% reduction of biofilm height. The BC-nChiD showed better dressing characteristics: higher porosity, higher wound fluid absorption and faster migration of cells (in vitro healing). All obtained results confirmed both composite hydrogels as promising chronic wound healing agents.
T2  - International Journal of Biological Macromolecules
T1  - Chronic wound dressings – Pathogenic bacteria anti-biofilm treatment with bacterial cellulose-chitosan polymer or bacterial cellulose-chitosan dots composite hydrogels
VL  - 191
SP  - 315
EP  - 323
DO  - 10.1016/j.ijbiomac.2021.09.118
ER  - 
@article{
author = "Zmejkoski, Danica Z. and Zdravković, Nemanja M. and Trišić, Dijana D. and Budimir, Milica D. and Marković, Zoran M. and Kozyrovska, Natalia O. and Todorović-Marković, Biljana",
year = "2021",
abstract = "Since the pathogenic bacteria biofilms are involved in 70% of chronic infections and their resistance to antibiotics is increased, the research in this field requires new healing agents. New composite hydrogels were designed as potential chronic wound dressings composed of bacterial cellulose (BC) with chitosan polymer (Chi) – BC-Chi and chitosan nanoparticles (nChiD) – BC-nChiD. nChiD were obtained by gamma irradiation at doses: 20, 40 and 60 kGy. Physical and chemical analyses showed incorporation of Chi and encapsulation of nChiD into BC. The BC-Chi has the highest average surface roughness. BC-nChiD hydrogels show an irradiated dose-dependent increase of average surface roughness. New composite hydrogels are biocompatible with excellent anti-biofilm potential with up to 90% reduction of viable biofilm and up to 65% reduction of biofilm height. The BC-nChiD showed better dressing characteristics: higher porosity, higher wound fluid absorption and faster migration of cells (in vitro healing). All obtained results confirmed both composite hydrogels as promising chronic wound healing agents.",
journal = "International Journal of Biological Macromolecules",
title = "Chronic wound dressings – Pathogenic bacteria anti-biofilm treatment with bacterial cellulose-chitosan polymer or bacterial cellulose-chitosan dots composite hydrogels",
volume = "191",
pages = "315-323",
doi = "10.1016/j.ijbiomac.2021.09.118"
}
Zmejkoski, D. Z., Zdravković, N. M., Trišić, D. D., Budimir, M. D., Marković, Z. M., Kozyrovska, N. O.,& Todorović-Marković, B.. (2021). Chronic wound dressings – Pathogenic bacteria anti-biofilm treatment with bacterial cellulose-chitosan polymer or bacterial cellulose-chitosan dots composite hydrogels. in International Journal of Biological Macromolecules, 191, 315-323.
https://doi.org/10.1016/j.ijbiomac.2021.09.118
Zmejkoski DZ, Zdravković NM, Trišić DD, Budimir MD, Marković ZM, Kozyrovska NO, Todorović-Marković B. Chronic wound dressings – Pathogenic bacteria anti-biofilm treatment with bacterial cellulose-chitosan polymer or bacterial cellulose-chitosan dots composite hydrogels. in International Journal of Biological Macromolecules. 2021;191:315-323.
doi:10.1016/j.ijbiomac.2021.09.118 .
Zmejkoski, Danica Z., Zdravković, Nemanja M., Trišić, Dijana D., Budimir, Milica D., Marković, Zoran M., Kozyrovska, Natalia O., Todorović-Marković, Biljana, "Chronic wound dressings – Pathogenic bacteria anti-biofilm treatment with bacterial cellulose-chitosan polymer or bacterial cellulose-chitosan dots composite hydrogels" in International Journal of Biological Macromolecules, 191 (2021):315-323,
https://doi.org/10.1016/j.ijbiomac.2021.09.118 . .
1

Self-ignition potential assessment for different biomass feedstocks based on the dynamic thermal analysis

Manić, Nebojša; Janković, Bojan; Stojiljković, Dragoslava; Radojević, Miloš; Somoza, Blanca Castells; Medić, Ljiljana

(2021)

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš
AU  - Somoza, Blanca Castells
AU  - Medić, Ljiljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9962
AB  - Despite many advantages of the utilization of biomass as a renewable energy source, certain bottlenecks during biomass plant operation can be identified. Transport and collection of biomass as well as non-uniform material characteristics are issues related to decreasing efficiency of logistics and fuel manipulation which can also cause economic problems with biomass collection, transport, and storage. Since biomass is an especially reactive fuel, this has raised concerns over its safe handling and utilization. Fires, and sometimes explosions, are a risk during all stages of fuel production as well as during handling and utilization of the product. This paper presents a novel method for assessing ignition risk and provides a ranking of relative risk of ignition of biomass fuels. Tests within this method include physical and chemical properties of biomass, thermal analysis measurements, and the calculation procedure steps which were made using characteristic temperatures from thermogravimetry recordings. The results of thermogravimetry analysis were used for determination of tangent slope of the mass loss rate curves in devolatilization zone at considered heating rates for all tested samples. Linear interpolation of the data obtained by tangent slope analysis and used heating rates may provide unique straight line for each sample in the ignition testing. Thermogravimetry index of spontaneous ignition (TGspi) is obtained for all samples based on newly established formula. By varying gradient of linear dependence of self-heating coefficient against reference temperatures, mass and heat transfer limitations for various biomasses were discussed. The proposed method is accurate as well as relatively simple and quick, enabling determination of data necessary for design and application of appropriate measures to reduce fire and explosion hazard related to operation of biomass.
T2  - Cleaner Engineering and Technology
T1  - Self-ignition potential assessment for different biomass feedstocks based on the dynamic thermal analysis
VL  - 2
SP  - 100040
DO  - 10.1016/j.clet.2020.100040
ER  - 
@article{
author = "Manić, Nebojša and Janković, Bojan and Stojiljković, Dragoslava and Radojević, Miloš and Somoza, Blanca Castells and Medić, Ljiljana",
year = "2021",
abstract = "Despite many advantages of the utilization of biomass as a renewable energy source, certain bottlenecks during biomass plant operation can be identified. Transport and collection of biomass as well as non-uniform material characteristics are issues related to decreasing efficiency of logistics and fuel manipulation which can also cause economic problems with biomass collection, transport, and storage. Since biomass is an especially reactive fuel, this has raised concerns over its safe handling and utilization. Fires, and sometimes explosions, are a risk during all stages of fuel production as well as during handling and utilization of the product. This paper presents a novel method for assessing ignition risk and provides a ranking of relative risk of ignition of biomass fuels. Tests within this method include physical and chemical properties of biomass, thermal analysis measurements, and the calculation procedure steps which were made using characteristic temperatures from thermogravimetry recordings. The results of thermogravimetry analysis were used for determination of tangent slope of the mass loss rate curves in devolatilization zone at considered heating rates for all tested samples. Linear interpolation of the data obtained by tangent slope analysis and used heating rates may provide unique straight line for each sample in the ignition testing. Thermogravimetry index of spontaneous ignition (TGspi) is obtained for all samples based on newly established formula. By varying gradient of linear dependence of self-heating coefficient against reference temperatures, mass and heat transfer limitations for various biomasses were discussed. The proposed method is accurate as well as relatively simple and quick, enabling determination of data necessary for design and application of appropriate measures to reduce fire and explosion hazard related to operation of biomass.",
journal = "Cleaner Engineering and Technology",
title = "Self-ignition potential assessment for different biomass feedstocks based on the dynamic thermal analysis",
volume = "2",
pages = "100040",
doi = "10.1016/j.clet.2020.100040"
}
Manić, N., Janković, B., Stojiljković, D., Radojević, M., Somoza, B. C.,& Medić, L.. (2021). Self-ignition potential assessment for different biomass feedstocks based on the dynamic thermal analysis. in Cleaner Engineering and Technology, 2, 100040.
https://doi.org/10.1016/j.clet.2020.100040
Manić N, Janković B, Stojiljković D, Radojević M, Somoza BC, Medić L. Self-ignition potential assessment for different biomass feedstocks based on the dynamic thermal analysis. in Cleaner Engineering and Technology. 2021;2:100040.
doi:10.1016/j.clet.2020.100040 .
Manić, Nebojša, Janković, Bojan, Stojiljković, Dragoslava, Radojević, Miloš, Somoza, Blanca Castells, Medić, Ljiljana, "Self-ignition potential assessment for different biomass feedstocks based on the dynamic thermal analysis" in Cleaner Engineering and Technology, 2 (2021):100040,
https://doi.org/10.1016/j.clet.2020.100040 . .

S-Adenosyl-L-Homocysteine Hydrolase Immobilized on Citric Acid-capped Gallium Oxyhydroxide on SWCNTs Modified Electrode for AdoHcy Impedimetric Sensing

Knežević, Sara; Ognjanović, Miloš; Gavrović-Jankulović, Marija; Đurašinović, Tatjana; Antić, Bratislav; Vranješ-Đurić, Sanja; Stanković, Dalibor

(2021)

TY  - JOUR
AU  - Knežević, Sara
AU  - Ognjanović, Miloš
AU  - Gavrović-Jankulović, Marija
AU  - Đurašinović, Tatjana
AU  - Antić, Bratislav
AU  - Vranješ-Đurić, Sanja
AU  - Stanković, Dalibor
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9976
AB  - S-Adenosyl-L-Homocysteine (AdoHcy) is a crucial pathological factor in homocysteine-associated disorders. We developed an impedimetric approach for single drop S-Adenosyl-L-Homocysteine detection, based on S-Adenosyl-L-Homocysteine hydrolase (SAH), produced in the prokaryotic expression system (E. coli) by recombinant DNA technology, immobilized on citrate acid-coated gallium oxyhydroxide dispersed over single-walled carbon nanotubes (CA/GaO(OH)@SWCNT). The proposed biosensor offers detection of AdoHcy, with a limit of detection (LOD) of 0.17 μM. with operating linear range from 1 to 44 μM. The remarkable stability of gallium oxyhydroxide crystal was further improved by citric acid coating and its optical, electrical and physical anisotropy was skipped using SWCNTs.
T2  - Electroanalysis
T1  - S-Adenosyl-L-Homocysteine Hydrolase Immobilized on Citric Acid-capped Gallium Oxyhydroxide on SWCNTs Modified Electrode for AdoHcy Impedimetric Sensing
DO  - 10.1002/elan.202100362
ER  - 
@article{
author = "Knežević, Sara and Ognjanović, Miloš and Gavrović-Jankulović, Marija and Đurašinović, Tatjana and Antić, Bratislav and Vranješ-Đurić, Sanja and Stanković, Dalibor",
year = "2021",
abstract = "S-Adenosyl-L-Homocysteine (AdoHcy) is a crucial pathological factor in homocysteine-associated disorders. We developed an impedimetric approach for single drop S-Adenosyl-L-Homocysteine detection, based on S-Adenosyl-L-Homocysteine hydrolase (SAH), produced in the prokaryotic expression system (E. coli) by recombinant DNA technology, immobilized on citrate acid-coated gallium oxyhydroxide dispersed over single-walled carbon nanotubes (CA/GaO(OH)@SWCNT). The proposed biosensor offers detection of AdoHcy, with a limit of detection (LOD) of 0.17 μM. with operating linear range from 1 to 44 μM. The remarkable stability of gallium oxyhydroxide crystal was further improved by citric acid coating and its optical, electrical and physical anisotropy was skipped using SWCNTs.",
journal = "Electroanalysis",
title = "S-Adenosyl-L-Homocysteine Hydrolase Immobilized on Citric Acid-capped Gallium Oxyhydroxide on SWCNTs Modified Electrode for AdoHcy Impedimetric Sensing",
doi = "10.1002/elan.202100362"
}
Knežević, S., Ognjanović, M., Gavrović-Jankulović, M., Đurašinović, T., Antić, B., Vranješ-Đurić, S.,& Stanković, D.. (2021). S-Adenosyl-L-Homocysteine Hydrolase Immobilized on Citric Acid-capped Gallium Oxyhydroxide on SWCNTs Modified Electrode for AdoHcy Impedimetric Sensing. in Electroanalysis.
https://doi.org/10.1002/elan.202100362
Knežević S, Ognjanović M, Gavrović-Jankulović M, Đurašinović T, Antić B, Vranješ-Đurić S, Stanković D. S-Adenosyl-L-Homocysteine Hydrolase Immobilized on Citric Acid-capped Gallium Oxyhydroxide on SWCNTs Modified Electrode for AdoHcy Impedimetric Sensing. in Electroanalysis. 2021;.
doi:10.1002/elan.202100362 .
Knežević, Sara, Ognjanović, Miloš, Gavrović-Jankulović, Marija, Đurašinović, Tatjana, Antić, Bratislav, Vranješ-Đurić, Sanja, Stanković, Dalibor, "S-Adenosyl-L-Homocysteine Hydrolase Immobilized on Citric Acid-capped Gallium Oxyhydroxide on SWCNTs Modified Electrode for AdoHcy Impedimetric Sensing" in Electroanalysis (2021),
https://doi.org/10.1002/elan.202100362 . .
1

Novel cordierite-acicular mullite composite for diesel particulate filters

Omerašević, Mia; Kocjan, Andraž; Bučevac, Dušan

(2021)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Kocjan, Andraž
AU  - Bučevac, Dušan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9975
AB  - Cordierite-acicular mullite composites containing 0, 25, 50, 75 and 100 wt% of mullite were fabricated from waste MoSi2 and commercial powders of Al2O3 and spinel (MgAl2O4). Careful oxidation of pulverised waste MoSi2 rendered a precursor mixture of MoO3 and amorphous SiO2, which served as pore forming agent and SiO2 source, respectively. Evaporation of MoO3 at ∼750 °C allowed production of highly porous cordierite-mullite ceramic composite after sintering in air at 1350 °C for 4 h. The combination of equiaxed cordierite grains and elongated (prism-like) mullite grains, resulted in unique microstructure with open porosity between 53.3 and 55.6 vol% which makes the obtained composite convenient for application as diesel particulate filter material. The presence of mullite affected four key thermo-mechanical properties which determine the thermal shock resistance of cordierite-mullite composite. The best thermal shock resistance was measured in composite containing 75 wt% of mullite. It was a result of improved thermal conductivity (1.081 W/mK) and bending strength (3.62 MPa) and relatively low values of coefficient of thermal expansion (3.8 × 10−6 K−1) and elastic modulus (2.27 GPa).
T2  - Ceramics International
T1  - Novel cordierite-acicular mullite composite for diesel particulate filters
DO  - 10.1016/j.ceramint.2021.10.005
ER  - 
@article{
author = "Omerašević, Mia and Kocjan, Andraž and Bučevac, Dušan",
year = "2021",
abstract = "Cordierite-acicular mullite composites containing 0, 25, 50, 75 and 100 wt% of mullite were fabricated from waste MoSi2 and commercial powders of Al2O3 and spinel (MgAl2O4). Careful oxidation of pulverised waste MoSi2 rendered a precursor mixture of MoO3 and amorphous SiO2, which served as pore forming agent and SiO2 source, respectively. Evaporation of MoO3 at ∼750 °C allowed production of highly porous cordierite-mullite ceramic composite after sintering in air at 1350 °C for 4 h. The combination of equiaxed cordierite grains and elongated (prism-like) mullite grains, resulted in unique microstructure with open porosity between 53.3 and 55.6 vol% which makes the obtained composite convenient for application as diesel particulate filter material. The presence of mullite affected four key thermo-mechanical properties which determine the thermal shock resistance of cordierite-mullite composite. The best thermal shock resistance was measured in composite containing 75 wt% of mullite. It was a result of improved thermal conductivity (1.081 W/mK) and bending strength (3.62 MPa) and relatively low values of coefficient of thermal expansion (3.8 × 10−6 K−1) and elastic modulus (2.27 GPa).",
journal = "Ceramics International",
title = "Novel cordierite-acicular mullite composite for diesel particulate filters",
doi = "10.1016/j.ceramint.2021.10.005"
}
Omerašević, M., Kocjan, A.,& Bučevac, D.. (2021). Novel cordierite-acicular mullite composite for diesel particulate filters. in Ceramics International.
https://doi.org/10.1016/j.ceramint.2021.10.005
Omerašević M, Kocjan A, Bučevac D. Novel cordierite-acicular mullite composite for diesel particulate filters. in Ceramics International. 2021;.
doi:10.1016/j.ceramint.2021.10.005 .
Omerašević, Mia, Kocjan, Andraž, Bučevac, Dušan, "Novel cordierite-acicular mullite composite for diesel particulate filters" in Ceramics International (2021),
https://doi.org/10.1016/j.ceramint.2021.10.005 . .

The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers

Piotrowski, Wojciech; Dalipi, L.; Szukiewicz, Rafal; Fond, Benoit; Dramićanin, Miroslav; Marciniak, Lukasz

(2021)

TY  - JOUR
AU  - Piotrowski, Wojciech
AU  - Dalipi, L.
AU  - Szukiewicz, Rafal
AU  - Fond, Benoit
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9974
AB  - Despite the numerous advantages of lanthanide based luminescent thermometers, a major limitation is the limited brightness associated with the low absorption cross section of the 4f–4f transitions. In this paper, co-doping with Cr3+/4+ is proposed as a strategy to enhance the near-infrared luminescence emission of Nd3+/Er3+-based luminescent thermometers, as well as to modulate the temperature sensitivity of the ratio of Nd3+ to Er3+ in YAG microcrystals. It was found that an increase in the Cr3+ concentration leads to the enhancement of the YAG:Nd3+,Er3+ emission intensity via the Cr3+ → Ln3+ sensitization process. The quantitative analysis of the absolute brightness indicates the 30-fold enhancement of their near infrared emission upon broad white light excitation for 20% Cr3+ with respect to the non co-doped with the Cr3+ counterpart. In addition, the phonon-assisted nature of the simultaneously occurring Cr3+ → Ln3+ and Nd3+ → Cr4+ → Er3+ energy transfers leads to a 7-fold increase of the relative temperature sensitivity of the ratio of Nd3+ to Er3+ emission. In conclusion, co-doping with transition metals can enhance simultaneously the luminescence brightness and the temperature sensitivity of NIR luminescent thermometers, holding promise for sensitive and robust remote temperature sensing at physiological temperatures.
T2  - Journal of Materials Chemistry C
T1  - The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers
VL  - 9
IS  - 37
SP  - 12671
EP  - 12680
DO  - 10.1039/D1TC03046A
ER  - 
@article{
author = "Piotrowski, Wojciech and Dalipi, L. and Szukiewicz, Rafal and Fond, Benoit and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2021",
abstract = "Despite the numerous advantages of lanthanide based luminescent thermometers, a major limitation is the limited brightness associated with the low absorption cross section of the 4f–4f transitions. In this paper, co-doping with Cr3+/4+ is proposed as a strategy to enhance the near-infrared luminescence emission of Nd3+/Er3+-based luminescent thermometers, as well as to modulate the temperature sensitivity of the ratio of Nd3+ to Er3+ in YAG microcrystals. It was found that an increase in the Cr3+ concentration leads to the enhancement of the YAG:Nd3+,Er3+ emission intensity via the Cr3+ → Ln3+ sensitization process. The quantitative analysis of the absolute brightness indicates the 30-fold enhancement of their near infrared emission upon broad white light excitation for 20% Cr3+ with respect to the non co-doped with the Cr3+ counterpart. In addition, the phonon-assisted nature of the simultaneously occurring Cr3+ → Ln3+ and Nd3+ → Cr4+ → Er3+ energy transfers leads to a 7-fold increase of the relative temperature sensitivity of the ratio of Nd3+ to Er3+ emission. In conclusion, co-doping with transition metals can enhance simultaneously the luminescence brightness and the temperature sensitivity of NIR luminescent thermometers, holding promise for sensitive and robust remote temperature sensing at physiological temperatures.",
journal = "Journal of Materials Chemistry C",
title = "The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers",
volume = "9",
number = "37",
pages = "12671-12680",
doi = "10.1039/D1TC03046A"
}
Piotrowski, W., Dalipi, L., Szukiewicz, R., Fond, B., Dramićanin, M.,& Marciniak, L.. (2021). The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers. in Journal of Materials Chemistry C, 9(37), 12671-12680.
https://doi.org/10.1039/D1TC03046A
Piotrowski W, Dalipi L, Szukiewicz R, Fond B, Dramićanin M, Marciniak L. The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers. in Journal of Materials Chemistry C. 2021;9(37):12671-12680.
doi:10.1039/D1TC03046A .
Piotrowski, Wojciech, Dalipi, L., Szukiewicz, Rafal, Fond, Benoit, Dramićanin, Miroslav, Marciniak, Lukasz, "The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers" in Journal of Materials Chemistry C, 9, no. 37 (2021):12671-12680,
https://doi.org/10.1039/D1TC03046A . .
3

Fructose-rich diet and walnut supplementation differently regulate rat hypothalamic and hippocampal glucose transporters expression

Dakić, Tamara; Lakić, Iva; Zec, Manja; Takić, Marija; Stojiljković, Mojca; Jevđović, Tanja

(2021)

TY  - JOUR
AU  - Dakić, Tamara
AU  - Lakić, Iva
AU  - Zec, Manja
AU  - Takić, Marija
AU  - Stojiljković, Mojca
AU  - Jevđović, Tanja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9973
AB  - Nutritional modulations may be considered a strategy to protect mental health. Neuronal homeostasis is highly dependent on the availability of glucose, which represents the primary energy source for the brain. In this study, we evaluated the effects of walnut intake and fructose-rich diet on the expression of glucose transporters (GLUTs) in two rat brain regions: hypothalamus and hippocampus. RESULTS Our results show that walnut supplementation of fructose-fed animals restored the hypothalamic content of GLUT1 and GLUT3 protein. Furthermore, walnut intake did not affect increased hypothalamic GLUT2 content upon fructose consumption. These effects were accompanied by distinctive alterations of hippocampal GLUTs levels. Specifically, walnut intake increased GLUT1 content, whereas GLUT2 protein was decreased within the rat hippocampus after both individual and combined treatments. CONCLUSION Overall, our study suggests that walnut supplementation exerted modulatory effects on the glucose transporters within specific brain regions in the presence of developed metabolic disorder. © 2021 Society of Chemical Industry.
T2  - Journal of the Science of Food and Agriculture
T1  - Fructose-rich diet and walnut supplementation differently regulate rat hypothalamic and hippocampal glucose transporters expression
VL  - 101
IS  - 14
SP  - 5984
EP  - 5991
DO  - 10.1002/jsfa.11252
ER  - 
@article{
author = "Dakić, Tamara and Lakić, Iva and Zec, Manja and Takić, Marija and Stojiljković, Mojca and Jevđović, Tanja",
year = "2021",
abstract = "Nutritional modulations may be considered a strategy to protect mental health. Neuronal homeostasis is highly dependent on the availability of glucose, which represents the primary energy source for the brain. In this study, we evaluated the effects of walnut intake and fructose-rich diet on the expression of glucose transporters (GLUTs) in two rat brain regions: hypothalamus and hippocampus. RESULTS Our results show that walnut supplementation of fructose-fed animals restored the hypothalamic content of GLUT1 and GLUT3 protein. Furthermore, walnut intake did not affect increased hypothalamic GLUT2 content upon fructose consumption. These effects were accompanied by distinctive alterations of hippocampal GLUTs levels. Specifically, walnut intake increased GLUT1 content, whereas GLUT2 protein was decreased within the rat hippocampus after both individual and combined treatments. CONCLUSION Overall, our study suggests that walnut supplementation exerted modulatory effects on the glucose transporters within specific brain regions in the presence of developed metabolic disorder. © 2021 Society of Chemical Industry.",
journal = "Journal of the Science of Food and Agriculture",
title = "Fructose-rich diet and walnut supplementation differently regulate rat hypothalamic and hippocampal glucose transporters expression",
volume = "101",
number = "14",
pages = "5984-5991",
doi = "10.1002/jsfa.11252"
}
Dakić, T., Lakić, I., Zec, M., Takić, M., Stojiljković, M.,& Jevđović, T.. (2021). Fructose-rich diet and walnut supplementation differently regulate rat hypothalamic and hippocampal glucose transporters expression. in Journal of the Science of Food and Agriculture, 101(14), 5984-5991.
https://doi.org/10.1002/jsfa.11252
Dakić T, Lakić I, Zec M, Takić M, Stojiljković M, Jevđović T. Fructose-rich diet and walnut supplementation differently regulate rat hypothalamic and hippocampal glucose transporters expression. in Journal of the Science of Food and Agriculture. 2021;101(14):5984-5991.
doi:10.1002/jsfa.11252 .
Dakić, Tamara, Lakić, Iva, Zec, Manja, Takić, Marija, Stojiljković, Mojca, Jevđović, Tanja, "Fructose-rich diet and walnut supplementation differently regulate rat hypothalamic and hippocampal glucose transporters expression" in Journal of the Science of Food and Agriculture, 101, no. 14 (2021):5984-5991,
https://doi.org/10.1002/jsfa.11252 . .

Follicular and serum levels of vitamin D in women with unexplained infertility and their relationship with in vitro fertilization outcome: an observational pilot study

Jeremić, Ana; Miković, Željko; Sudar-Milovanović, Emina; Isenović, Esma R.; Perović, Milan

(2021)

TY  - JOUR
AU  - Jeremić, Ana
AU  - Miković, Željko
AU  - Sudar-Milovanović, Emina
AU  - Isenović, Esma R.
AU  - Perović, Milan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9971
AB  - Follicular and serum vitamin D are considered potential markers of the oocyte and embryos' quality and predictors of IVF outcomes.   Material and methods:  This retrospective cross-sectional study correlated vitamin D in sera and follicular fluid of women with unexplained...
T2  - Archives of Medical Science
T1  - Follicular and serum levels of vitamin D in women with unexplained infertility and their relationship with in vitro fertilization outcome: an observational pilot study
VL  - 17
IS  - 5
SP  - 1418
EP  - 1422
DO  - 10.5114/aoms/141185
ER  - 
@article{
author = "Jeremić, Ana and Miković, Željko and Sudar-Milovanović, Emina and Isenović, Esma R. and Perović, Milan",
year = "2021",
abstract = "Follicular and serum vitamin D are considered potential markers of the oocyte and embryos' quality and predictors of IVF outcomes.   Material and methods:  This retrospective cross-sectional study correlated vitamin D in sera and follicular fluid of women with unexplained...",
journal = "Archives of Medical Science",
title = "Follicular and serum levels of vitamin D in women with unexplained infertility and their relationship with in vitro fertilization outcome: an observational pilot study",
volume = "17",
number = "5",
pages = "1418-1422",
doi = "10.5114/aoms/141185"
}
Jeremić, A., Miković, Ž., Sudar-Milovanović, E., Isenović, E. R.,& Perović, M.. (2021). Follicular and serum levels of vitamin D in women with unexplained infertility and their relationship with in vitro fertilization outcome: an observational pilot study. in Archives of Medical Science, 17(5), 1418-1422.
https://doi.org/10.5114/aoms/141185
Jeremić A, Miković Ž, Sudar-Milovanović E, Isenović ER, Perović M. Follicular and serum levels of vitamin D in women with unexplained infertility and their relationship with in vitro fertilization outcome: an observational pilot study. in Archives of Medical Science. 2021;17(5):1418-1422.
doi:10.5114/aoms/141185 .
Jeremić, Ana, Miković, Željko, Sudar-Milovanović, Emina, Isenović, Esma R., Perović, Milan, "Follicular and serum levels of vitamin D in women with unexplained infertility and their relationship with in vitro fertilization outcome: an observational pilot study" in Archives of Medical Science, 17, no. 5 (2021):1418-1422,
https://doi.org/10.5114/aoms/141185 . .

Microglial- and Astrocyte-Specific Expression of Purinergic Signaling Components and Inflammatory Mediators in the Rat Hippocampus During Trimethyltin-Induced Neurodegeneration

Dragić, Milorad; Mitrović, Nataša; Adžić, Marija; Nedeljković, Nadežda; Grković, Ivana

(2021)

TY  - JOUR
AU  - Dragić, Milorad
AU  - Mitrović, Nataša
AU  - Adžić, Marija
AU  - Nedeljković, Nadežda
AU  - Grković, Ivana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9970
AB  - The present study examined the involvement of purinergic signaling components in the rat model of hippocampal degeneration induced by trimethyltin (TMT) intoxication (8 mg/kg, single intraperitoneal injection), which results in behavioral and neurological dysfunction similar to neurodegenerative disorders. We investigated spatial and temporal patterns of ecto-nucleoside triphosphate diphosphohydrolase 1 (NTPDase1/CD39) and ecto-5′ nucleotidase (eN/CD73) activity, their cell-specific localization, and analyzed gene expression pattern and/or cellular localization of purinoreceptors and proinflammatory mediators associated with reactive glial cells. Our study demonstrated that all Iba1+ cells at the injured area, irrespective of their morphology, upregulated NTPDase1/CD39, while induction of eN/CD73 has been observed at amoeboid Iba1+ cells localized within the hippocampal neuronal layers with pronounced cell death. Marked induction of P2Y12R, P2Y6R, and P2X4-messenger RNA at the early stage of TMT-induced neurodegeneration might reflect the functional properties, migration, and chemotaxis of microglia, while induction of P2X7R at amoeboid cells probably modulates their phagocytic role. Reactive astrocytes expressed adenosine A1, A2A, and P2Y1 receptors, revealed induction of complement component C3, inducible nitric oxide synthase, nuclear factor-kB, and proinflammatory cytokines at the late stage of TMT-induced neurodegeneration. An increased set of purinergic system components on activated microglia (NTPDase1/CD39, eN/CD73, and P2X7) and astrocytes (A1R, A2AR, and P2Y1), and loss of homeostatic glial and neuronal purinergic pathways (P2Y12 and A1R) may shift purinergic signaling balance toward excitotoxicity and inflammation, thus favoring progression of pathological events. These findings may contribute to a better understanding of the involvement of purinergic signaling components in the progression of neurodegenerative disorders that could be target molecules for the development of novel therapies.
T2  - ASN Neuro
T1  - Microglial- and Astrocyte-Specific Expression of Purinergic Signaling Components and Inflammatory Mediators in the Rat Hippocampus During Trimethyltin-Induced Neurodegeneration
VL  - 13
SP  - 17590914211044882
DO  - 10.1177/17590914211044882
ER  - 
@article{
author = "Dragić, Milorad and Mitrović, Nataša and Adžić, Marija and Nedeljković, Nadežda and Grković, Ivana",
year = "2021",
abstract = "The present study examined the involvement of purinergic signaling components in the rat model of hippocampal degeneration induced by trimethyltin (TMT) intoxication (8 mg/kg, single intraperitoneal injection), which results in behavioral and neurological dysfunction similar to neurodegenerative disorders. We investigated spatial and temporal patterns of ecto-nucleoside triphosphate diphosphohydrolase 1 (NTPDase1/CD39) and ecto-5′ nucleotidase (eN/CD73) activity, their cell-specific localization, and analyzed gene expression pattern and/or cellular localization of purinoreceptors and proinflammatory mediators associated with reactive glial cells. Our study demonstrated that all Iba1+ cells at the injured area, irrespective of their morphology, upregulated NTPDase1/CD39, while induction of eN/CD73 has been observed at amoeboid Iba1+ cells localized within the hippocampal neuronal layers with pronounced cell death. Marked induction of P2Y12R, P2Y6R, and P2X4-messenger RNA at the early stage of TMT-induced neurodegeneration might reflect the functional properties, migration, and chemotaxis of microglia, while induction of P2X7R at amoeboid cells probably modulates their phagocytic role. Reactive astrocytes expressed adenosine A1, A2A, and P2Y1 receptors, revealed induction of complement component C3, inducible nitric oxide synthase, nuclear factor-kB, and proinflammatory cytokines at the late stage of TMT-induced neurodegeneration. An increased set of purinergic system components on activated microglia (NTPDase1/CD39, eN/CD73, and P2X7) and astrocytes (A1R, A2AR, and P2Y1), and loss of homeostatic glial and neuronal purinergic pathways (P2Y12 and A1R) may shift purinergic signaling balance toward excitotoxicity and inflammation, thus favoring progression of pathological events. These findings may contribute to a better understanding of the involvement of purinergic signaling components in the progression of neurodegenerative disorders that could be target molecules for the development of novel therapies.",
journal = "ASN Neuro",
title = "Microglial- and Astrocyte-Specific Expression of Purinergic Signaling Components and Inflammatory Mediators in the Rat Hippocampus During Trimethyltin-Induced Neurodegeneration",
volume = "13",
pages = "17590914211044882",
doi = "10.1177/17590914211044882"
}
Dragić, M., Mitrović, N., Adžić, M., Nedeljković, N.,& Grković, I.. (2021). Microglial- and Astrocyte-Specific Expression of Purinergic Signaling Components and Inflammatory Mediators in the Rat Hippocampus During Trimethyltin-Induced Neurodegeneration. in ASN Neuro, 13, 17590914211044882.
https://doi.org/10.1177/17590914211044882
Dragić M, Mitrović N, Adžić M, Nedeljković N, Grković I. Microglial- and Astrocyte-Specific Expression of Purinergic Signaling Components and Inflammatory Mediators in the Rat Hippocampus During Trimethyltin-Induced Neurodegeneration. in ASN Neuro. 2021;13:17590914211044882.
doi:10.1177/17590914211044882 .
Dragić, Milorad, Mitrović, Nataša, Adžić, Marija, Nedeljković, Nadežda, Grković, Ivana, "Microglial- and Astrocyte-Specific Expression of Purinergic Signaling Components and Inflammatory Mediators in the Rat Hippocampus During Trimethyltin-Induced Neurodegeneration" in ASN Neuro, 13 (2021):17590914211044882,
https://doi.org/10.1177/17590914211044882 . .
3

Ab Initio Investigations and Behaviour of the α-Ce2ON2 Phase in the Extreme Pressure Conditions

Zagorac, Jelena B.; Zagorac, Dejan; Jovanović, Dušica; Pejić, Milan; Škundrić, Tamara; Matović, Branko

(2021)

TY  - JOUR
AU  - Zagorac, Jelena B.
AU  - Zagorac, Dejan
AU  - Jovanović, Dušica
AU  - Pejić, Milan
AU  - Škundrić, Tamara
AU  - Matović, Branko
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9969
AB  - Recently predicted α-phase in the Ce2ON2 compound has been further investigated using ab initio methods. The structural properties of the α-Ce2ON2 have been investigated and compared with the related AlCo2Pr2 structure. Mechanical properties including elastic constants, bulk, shear and elastic moduli, Poisson's ratio, Pugh’s criterion, and hardness are calculated in the pressure range from 0 to 10 GPa. Also, electronic properties are calculated at the same pressure conditions using DFT-LDA approximation and the characteristic band structure has been analyzed.
T2  - Journal of Innovative Materials in Extreme Conditions
T1  - Ab Initio Investigations and Behaviour of the α-Ce2ON2 Phase in the Extreme Pressure Conditions
VL  - 2
IS  - 2
SP  - 36
EP  - 43
ER  - 
@article{
author = "Zagorac, Jelena B. and Zagorac, Dejan and Jovanović, Dušica and Pejić, Milan and Škundrić, Tamara and Matović, Branko",
year = "2021",
abstract = "Recently predicted α-phase in the Ce2ON2 compound has been further investigated using ab initio methods. The structural properties of the α-Ce2ON2 have been investigated and compared with the related AlCo2Pr2 structure. Mechanical properties including elastic constants, bulk, shear and elastic moduli, Poisson's ratio, Pugh’s criterion, and hardness are calculated in the pressure range from 0 to 10 GPa. Also, electronic properties are calculated at the same pressure conditions using DFT-LDA approximation and the characteristic band structure has been analyzed.",
journal = "Journal of Innovative Materials in Extreme Conditions",
title = "Ab Initio Investigations and Behaviour of the α-Ce2ON2 Phase in the Extreme Pressure Conditions",
volume = "2",
number = "2",
pages = "36-43"
}
Zagorac, J. B., Zagorac, D., Jovanović, D., Pejić, M., Škundrić, T.,& Matović, B.. (2021). Ab Initio Investigations and Behaviour of the α-Ce2ON2 Phase in the Extreme Pressure Conditions. in Journal of Innovative Materials in Extreme Conditions, 2(2), 36-43.
Zagorac JB, Zagorac D, Jovanović D, Pejić M, Škundrić T, Matović B. Ab Initio Investigations and Behaviour of the α-Ce2ON2 Phase in the Extreme Pressure Conditions. in Journal of Innovative Materials in Extreme Conditions. 2021;2(2):36-43..
Zagorac, Jelena B., Zagorac, Dejan, Jovanović, Dušica, Pejić, Milan, Škundrić, Tamara, Matović, Branko, "Ab Initio Investigations and Behaviour of the α-Ce2ON2 Phase in the Extreme Pressure Conditions" in Journal of Innovative Materials in Extreme Conditions, 2, no. 2 (2021):36-43.