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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 . .
2
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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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
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",
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 . .

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 . .

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 . .
1

Efekti svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida

Sarap, Nataša; Janković, Marija M.; Rajačić, Milica; Krneta-Nikolić, Jelena D.; Todorović, Dragana; Vukanac, Ivana; Pantelić, Gordana K.

(Institut za nuklearne nauke "Vinča", 2021)

TY  - CONF
AU  - Sarap, Nataša
AU  - Janković, Marija M.
AU  - Rajačić, Milica
AU  - Krneta-Nikolić, Jelena D.
AU  - Todorović, Dragana
AU  - Vukanac, Ivana
AU  - Pantelić, Gordana K.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9997
AB  - Istraživanja obuhvaćena ovom studijom predstavljaju prikaz efekata svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida, 90Sr i 137Cs. Za potrebe ovog rada, izvršeno je uzorkovanje obradivog zemljišta na dve dubine na teritoriji grada Beograda tokom 2014. godine. U uzorcima zemljišta su određene fizičko−hemijske osobine i specifične aktivnosti ispitanih radionuklida. Radiohemijska analitička metoda je primenjena za određivanje sadržaja 90Sr, dok je specifična aktivnost 137Cs određena primenom gamaspektrometrijske metode. Ispitivanje efekata svojstava analiziranih uzoraka obradivog zemljišta na migraciju 90Sr i 137Cs, izvršeno je statističkim metodama analize. Primenom linearne korelacione analize utvrđeni su dominantni fizičko−hemijski parametri koji utiču na migraciju 90Sr i 137Cs u poljoprivrednom zemljištu.
AB  - The research included by this study presents the effects of soil properties of different agricultural concepts to the migration of anthropogenic radionuclides, 90Sr and 137Cs. For the purposes of this paper, sampling of agricultural soil at two depths on the territory of the city of Belgrade during 2014 was performed. The physico−chemical properties of investigated soil, as well as the specific activities of the mentioned radionuclides were determined. The radiochemical analytical method was used to determine the 90Sr content, while the specific activity of 137Cs was determined using the gamma spectrometric method. Examination of the effects of soil properties on the migration of anthropogenic radionuclides 90Sr and 137Cs, based on the analyzed soil samples, was performed by statistical methods of analysis. By applying linear correlation analysis, the dominant physico−chemical parameters that affect the migration of 90Sr and 137Cs in agricultural soil were determined.
PB  - Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 31. симпозијум ДЗЗСЦГ : зборник радова
T1  - Efekti svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida
T1  - Effects of Soil Properties of Different Agricultural Concepts to Migration of the Artificial Radionuclides
SP  - 19
EP  - 26
ER  - 
@conference{
author = "Sarap, Nataša and Janković, Marija M. and Rajačić, Milica and Krneta-Nikolić, Jelena D. and Todorović, Dragana and Vukanac, Ivana and Pantelić, Gordana K.",
year = "2021",
abstract = "Istraživanja obuhvaćena ovom studijom predstavljaju prikaz efekata svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida, 90Sr i 137Cs. Za potrebe ovog rada, izvršeno je uzorkovanje obradivog zemljišta na dve dubine na teritoriji grada Beograda tokom 2014. godine. U uzorcima zemljišta su određene fizičko−hemijske osobine i specifične aktivnosti ispitanih radionuklida. Radiohemijska analitička metoda je primenjena za određivanje sadržaja 90Sr, dok je specifična aktivnost 137Cs određena primenom gamaspektrometrijske metode. Ispitivanje efekata svojstava analiziranih uzoraka obradivog zemljišta na migraciju 90Sr i 137Cs, izvršeno je statističkim metodama analize. Primenom linearne korelacione analize utvrđeni su dominantni fizičko−hemijski parametri koji utiču na migraciju 90Sr i 137Cs u poljoprivrednom zemljištu., The research included by this study presents the effects of soil properties of different agricultural concepts to the migration of anthropogenic radionuclides, 90Sr and 137Cs. For the purposes of this paper, sampling of agricultural soil at two depths on the territory of the city of Belgrade during 2014 was performed. The physico−chemical properties of investigated soil, as well as the specific activities of the mentioned radionuclides were determined. The radiochemical analytical method was used to determine the 90Sr content, while the specific activity of 137Cs was determined using the gamma spectrometric method. Examination of the effects of soil properties on the migration of anthropogenic radionuclides 90Sr and 137Cs, based on the analyzed soil samples, was performed by statistical methods of analysis. By applying linear correlation analysis, the dominant physico−chemical parameters that affect the migration of 90Sr and 137Cs in agricultural soil were determined.",
publisher = "Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "31. симпозијум ДЗЗСЦГ : зборник радова",
title = "Efekti svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida, Effects of Soil Properties of Different Agricultural Concepts to Migration of the Artificial Radionuclides",
pages = "19-26"
}
Sarap, N., Janković, M. M., Rajačić, M., Krneta-Nikolić, J. D., Todorović, D., Vukanac, I.,& Pantelić, G. K.. (2021). Efekti svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida. in 31. симпозијум ДЗЗСЦГ : зборник радова
Institut za nuklearne nauke "Vinča"., 19-26.
Sarap N, Janković MM, Rajačić M, Krneta-Nikolić JD, Todorović D, Vukanac I, Pantelić GK. Efekti svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida. in 31. симпозијум ДЗЗСЦГ : зборник радова. 2021;:19-26..
Sarap, Nataša, Janković, Marija M., Rajačić, Milica, Krneta-Nikolić, Jelena D., Todorović, Dragana, Vukanac, Ivana, Pantelić, Gordana K., "Efekti svojstava tla različitih poljoprivrednih koncepata na migraciju antropogenih radionuklida" in 31. симпозијум ДЗЗСЦГ : зборник радова (2021):19-26.

Technical and radiological characterisation of fly ash and bottom ash from thermal power plant

Fidanchevska, Emilija; Angjusheva, Biljana; Jovanov, Vojo; Murtanovski, Pece; Vladiceska, Ljubica; Stamatovska Aluloska, Nikolina; Krneta-Nikolić, Jelena D.; Ipavec, Andrej; Šter, Katarina; Mrak, Maruša; Dolenec, Sabina

(2021)

TY  - JOUR
AU  - Fidanchevska, Emilija
AU  - Angjusheva, Biljana
AU  - Jovanov, Vojo
AU  - Murtanovski, Pece
AU  - Vladiceska, Ljubica
AU  - Stamatovska Aluloska, Nikolina
AU  - Krneta-Nikolić, Jelena D.
AU  - Ipavec, Andrej
AU  - Šter, Katarina
AU  - Mrak, Maruša
AU  - Dolenec, Sabina
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9953
AB  - Huge quantities of fly ash and bottom ash are generated from thermal power plants and it presents great concern for country, mainly due to the environmental effects. In this study, fly ashes and bottom ash were characterized from technical and radiological aspects. Health effect due to the activity of radionuclides 226Ra, 232Th and 40K was estimated via radium equivalent activity (Raeq), external hazards index (Hex), the external absorbed dose rate (D) and annual effective dose rate (EDR). The specific surface area (40.25 m2 g−1), particle density (1.88 g cm−3) and LOI (23.49%) were typical for bottom ash. Siliceous fly ash contained 32% reactive silica. The annual effective dose rate for all ashes is ≤ 0.2 mSv y−1. Both, fly ash and bottom ash present potential secondary raw materials to be used for building purposes as result of their technological and radiological assessment.
T2  - Journal of Radioanalytical and Nuclear Chemistry
T1  - Technical and radiological characterisation of fly ash and bottom ash from thermal power plant
VL  - 330
IS  - 3
SP  - 685
EP  - 694
DO  - 10.1007/s10967-021-07980-w
ER  - 
@article{
author = "Fidanchevska, Emilija and Angjusheva, Biljana and Jovanov, Vojo and Murtanovski, Pece and Vladiceska, Ljubica and Stamatovska Aluloska, Nikolina and Krneta-Nikolić, Jelena D. and Ipavec, Andrej and Šter, Katarina and Mrak, Maruša and Dolenec, Sabina",
year = "2021",
abstract = "Huge quantities of fly ash and bottom ash are generated from thermal power plants and it presents great concern for country, mainly due to the environmental effects. In this study, fly ashes and bottom ash were characterized from technical and radiological aspects. Health effect due to the activity of radionuclides 226Ra, 232Th and 40K was estimated via radium equivalent activity (Raeq), external hazards index (Hex), the external absorbed dose rate (D) and annual effective dose rate (EDR). The specific surface area (40.25 m2 g−1), particle density (1.88 g cm−3) and LOI (23.49%) were typical for bottom ash. Siliceous fly ash contained 32% reactive silica. The annual effective dose rate for all ashes is ≤ 0.2 mSv y−1. Both, fly ash and bottom ash present potential secondary raw materials to be used for building purposes as result of their technological and radiological assessment.",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
title = "Technical and radiological characterisation of fly ash and bottom ash from thermal power plant",
volume = "330",
number = "3",
pages = "685-694",
doi = "10.1007/s10967-021-07980-w"
}
Fidanchevska, E., Angjusheva, B., Jovanov, V., Murtanovski, P., Vladiceska, L., Stamatovska Aluloska, N., Krneta-Nikolić, J. D., Ipavec, A., Šter, K., Mrak, M.,& Dolenec, S.. (2021). Technical and radiological characterisation of fly ash and bottom ash from thermal power plant. in Journal of Radioanalytical and Nuclear Chemistry, 330(3), 685-694.
https://doi.org/10.1007/s10967-021-07980-w
Fidanchevska E, Angjusheva B, Jovanov V, Murtanovski P, Vladiceska L, Stamatovska Aluloska N, Krneta-Nikolić JD, Ipavec A, Šter K, Mrak M, Dolenec S. Technical and radiological characterisation of fly ash and bottom ash from thermal power plant. in Journal of Radioanalytical and Nuclear Chemistry. 2021;330(3):685-694.
doi:10.1007/s10967-021-07980-w .
Fidanchevska, Emilija, Angjusheva, Biljana, Jovanov, Vojo, Murtanovski, Pece, Vladiceska, Ljubica, Stamatovska Aluloska, Nikolina, Krneta-Nikolić, Jelena D., Ipavec, Andrej, Šter, Katarina, Mrak, Maruša, Dolenec, Sabina, "Technical and radiological characterisation of fly ash and bottom ash from thermal power plant" in Journal of Radioanalytical and Nuclear Chemistry, 330, no. 3 (2021):685-694,
https://doi.org/10.1007/s10967-021-07980-w . .

A Supramolecular Perspective of Coordination Effects on Fluorine Interactions

Petković Benazzouz, Marija M.; Rakić, Aleksandra A.; Trišović, Nemanja P.; Zarić, Božidarka; Janjić, Goran V.

(2021)

TY  - DATA
AU  - Petković Benazzouz, Marija M.
AU  - Rakić, Aleksandra A.
AU  - Trišović, Nemanja P.
AU  - Zarić, Božidarka
AU  - Janjić, Goran V.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9996
AB  - Statistical analysis of the geometric parameters used for the description of noncovalent interactions involving the fluorine atom in crystal structures extracted from the CSD, the crystal packing, the model systems extracted from the crystal structure or obtained by reduction of the structures and interactions between different parts of the crystal structures (C−H/F, F/F, C−H/π, and F/π interactions), the total interaction energy, calculation of CCSD(T)/CBS interaction energies, Hartree−Fock energy and dispersion energy calculated at model system extracted from the crystal structure with refcode MINMAZ, and the analysis of the topological parame- ters by quantum theory of atoms in molecules (QTAIM).
T2  - Crystal Growth & Design
T1  - A Supramolecular Perspective of Coordination Effects on Fluorine Interactions
VL  - 21
IS  - 11
SP  - SI 001
DO  - 10.1021/acs.cgd.1c00584
ER  - 
@misc{
author = "Petković Benazzouz, Marija M. and Rakić, Aleksandra A. and Trišović, Nemanja P. and Zarić, Božidarka and Janjić, Goran V.",
year = "2021",
abstract = "Statistical analysis of the geometric parameters used for the description of noncovalent interactions involving the fluorine atom in crystal structures extracted from the CSD, the crystal packing, the model systems extracted from the crystal structure or obtained by reduction of the structures and interactions between different parts of the crystal structures (C−H/F, F/F, C−H/π, and F/π interactions), the total interaction energy, calculation of CCSD(T)/CBS interaction energies, Hartree−Fock energy and dispersion energy calculated at model system extracted from the crystal structure with refcode MINMAZ, and the analysis of the topological parame- ters by quantum theory of atoms in molecules (QTAIM).",
journal = "Crystal Growth & Design",
title = "A Supramolecular Perspective of Coordination Effects on Fluorine Interactions",
volume = "21",
number = "11",
pages = "SI 001",
doi = "10.1021/acs.cgd.1c00584"
}
Petković Benazzouz, M. M., Rakić, A. A., Trišović, N. P., Zarić, B.,& Janjić, G. V.. (2021). A Supramolecular Perspective of Coordination Effects on Fluorine Interactions. in Crystal Growth & Design, 21(11), SI 001.
https://doi.org/10.1021/acs.cgd.1c00584
Petković Benazzouz MM, Rakić AA, Trišović NP, Zarić B, Janjić GV. A Supramolecular Perspective of Coordination Effects on Fluorine Interactions. in Crystal Growth & Design. 2021;21(11):SI 001.
doi:10.1021/acs.cgd.1c00584 .
Petković Benazzouz, Marija M., Rakić, Aleksandra A., Trišović, Nemanja P., Zarić, Božidarka, Janjić, Goran V., "A Supramolecular Perspective of Coordination Effects on Fluorine Interactions" in Crystal Growth & Design, 21, no. 11 (2021):SI 001,
https://doi.org/10.1021/acs.cgd.1c00584 . .

Optical properties of zigzag nickel nanostructures obtained at different deposition angles

Potočnik, Jelena; Popović, Maja

(2021)

TY  - JOUR
AU  - Potočnik, Jelena
AU  - Popović, Maja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9994
AB  - In this study, nickel (Ni) thin films were deposited at two different angles (65o and 85o) using Glancing Angle Deposition technique, to the thicknesses of 60 – 290 nm. Structural analysis of the deposited films was performed by scanning electron microscopy and X-ray diffraction, while spectroscopic ellipsometry was used for the investigation of optical properties. Electrical resitivity of the samples was determined by four-point probe method. Structural analysis showed that the Ni films grow in a shape of zigzag nanocolumns, where the deposition angle strongly affects their porosity. As the thickness of the films increase they absorb light strongly and become less dense. Besides, samples deposited at the angle of 85o exhibit higher values of electrical resistivity as compared to the samples deposited at the angle of 65o, which can be correlated with high porosity and the growth mechanism of the deposited nanostructures.
T2  - Science of Sintering
T1  - Optical properties of zigzag nickel nanostructures obtained at different deposition angles
VL  - 53
IS  - 3
SP  - 347
EP  - 353
DO  - 10.2298/SOS2103347P
ER  - 
@article{
author = "Potočnik, Jelena and Popović, Maja",
year = "2021",
abstract = "In this study, nickel (Ni) thin films were deposited at two different angles (65o and 85o) using Glancing Angle Deposition technique, to the thicknesses of 60 – 290 nm. Structural analysis of the deposited films was performed by scanning electron microscopy and X-ray diffraction, while spectroscopic ellipsometry was used for the investigation of optical properties. Electrical resitivity of the samples was determined by four-point probe method. Structural analysis showed that the Ni films grow in a shape of zigzag nanocolumns, where the deposition angle strongly affects their porosity. As the thickness of the films increase they absorb light strongly and become less dense. Besides, samples deposited at the angle of 85o exhibit higher values of electrical resistivity as compared to the samples deposited at the angle of 65o, which can be correlated with high porosity and the growth mechanism of the deposited nanostructures.",
journal = "Science of Sintering",
title = "Optical properties of zigzag nickel nanostructures obtained at different deposition angles",
volume = "53",
number = "3",
pages = "347-353",
doi = "10.2298/SOS2103347P"
}
Potočnik, J.,& Popović, M.. (2021). Optical properties of zigzag nickel nanostructures obtained at different deposition angles. in Science of Sintering, 53(3), 347-353.
https://doi.org/10.2298/SOS2103347P
Potočnik J, Popović M. Optical properties of zigzag nickel nanostructures obtained at different deposition angles. in Science of Sintering. 2021;53(3):347-353.
doi:10.2298/SOS2103347P .
Potočnik, Jelena, Popović, Maja, "Optical properties of zigzag nickel nanostructures obtained at different deposition angles" in Science of Sintering, 53, no. 3 (2021):347-353,
https://doi.org/10.2298/SOS2103347P . .

Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases

Radosavljević-Mihajlović, Ana; Mitić, Vojislav; Šaponjić, Aleksandra; Kasić, Vladan

(2021)

TY  - JOUR
AU  - Radosavljević-Mihajlović, Ana
AU  - Mitić, Vojislav
AU  - Šaponjić, Aleksandra
AU  - Kasić, Vladan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9991
AB  - Data on thermally induced transformations of Mn exchanged zeolites LTA and FAU topology are presented in this paper. Thermally induced phase transformation of Mn-exchange zeolites are followed in the range from 700 to 1300oC. Both frameworks collapse into amorphous intermediate products after heating between 600 and 650oC. Prolonged heating of the intermediate product above 1100 °C results directly in formation of a disorder Mn-anorthiteLTA and Mn-anorthiteFAU. The parameter of unit cell of Mn-anorthiteLTA and Mn-anorthiteFAU, in temperature range between 700 and 1300oC, was observed in space group C-1. The phase conversions in the temperature range investigated were followed by thermal, X-ray powder diffraction and FT-IR analyses.
T2  - Science of Sintering
T1  - Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases
VL  - 53
IS  - 3
SP  - 397
EP  - 406
DO  - 10.2298/SOS2103397R
ER  - 
@article{
author = "Radosavljević-Mihajlović, Ana and Mitić, Vojislav and Šaponjić, Aleksandra and Kasić, Vladan",
year = "2021",
abstract = "Data on thermally induced transformations of Mn exchanged zeolites LTA and FAU topology are presented in this paper. Thermally induced phase transformation of Mn-exchange zeolites are followed in the range from 700 to 1300oC. Both frameworks collapse into amorphous intermediate products after heating between 600 and 650oC. Prolonged heating of the intermediate product above 1100 °C results directly in formation of a disorder Mn-anorthiteLTA and Mn-anorthiteFAU. The parameter of unit cell of Mn-anorthiteLTA and Mn-anorthiteFAU, in temperature range between 700 and 1300oC, was observed in space group C-1. The phase conversions in the temperature range investigated were followed by thermal, X-ray powder diffraction and FT-IR analyses.",
journal = "Science of Sintering",
title = "Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases",
volume = "53",
number = "3",
pages = "397-406",
doi = "10.2298/SOS2103397R"
}
Radosavljević-Mihajlović, A., Mitić, V., Šaponjić, A.,& Kasić, V.. (2021). Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases. in Science of Sintering, 53(3), 397-406.
https://doi.org/10.2298/SOS2103397R
Radosavljević-Mihajlović A, Mitić V, Šaponjić A, Kasić V. Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases. in Science of Sintering. 2021;53(3):397-406.
doi:10.2298/SOS2103397R .
Radosavljević-Mihajlović, Ana, Mitić, Vojislav, Šaponjić, Aleksandra, Kasić, Vladan, "Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases" in Science of Sintering, 53, no. 3 (2021):397-406,
https://doi.org/10.2298/SOS2103397R . .

Supramolecular Perspective of Coordination Effects on Fluorine Interactions

Petković Benazzouz, Marija M.; Rakić, Aleksandra A.; Trišović, Nemanja P.; Zarić, Božidarka; Janjić, Goran V.

(2021)

TY  - JOUR
AU  - Petković Benazzouz, Marija M.
AU  - Rakić, Aleksandra A.
AU  - Trišović, Nemanja P.
AU  - Zarić, Božidarka
AU  - Janjić, Goran V.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9989
AB  - Coordination effects have been considered through the most common interactions in the crystal structures of fluoro compounds (C-H/F and F/F interactions). The supramolecular profile of these effects is based on quantum-chemical calculations for the assessment of the interaction strength and electrostatic potential maps, which provide a qualitative insight into the examined effect. Coordination of aliphatic fluorides leads to an increase of the negative potential of the F atoms, and, hence, an increase in the hydrogen-bonding acceptor ability (strengthening of C-H/F interactions) and a weakening of the F/F interactions, due to an increase in repulsive interactions between the F atoms. There is no significant change in the potential of the F atoms due to coordination of C6-aromatic fluorides, as in the case of aliphatic ones. This results in slight changes in the strengths of the C-H/F and F/F interactions (coupled with parallel interaction at large offsets, PILO), in a noticeable enhancement of stacking interactions, as well as in a significant enhancement of interactions involving the π-system (F/πand C-H/πinteractions). It has also been shown that a decrease in the charge of the metal ions leads to a decrease in the negative potential of the F atom and also that the nature of the metal ion has a significant influence on the value of the potential of the F atoms.
T2  - Crystal Growth & Design
T1  - Supramolecular Perspective of Coordination Effects on Fluorine Interactions
VL  - 21
IS  - 11
SP  - 6129
EP  - 6142
DO  - 10.1021/acs.cgd.1c00584
ER  - 
@article{
author = "Petković Benazzouz, Marija M. and Rakić, Aleksandra A. and Trišović, Nemanja P. and Zarić, Božidarka and Janjić, Goran V.",
year = "2021",
abstract = "Coordination effects have been considered through the most common interactions in the crystal structures of fluoro compounds (C-H/F and F/F interactions). The supramolecular profile of these effects is based on quantum-chemical calculations for the assessment of the interaction strength and electrostatic potential maps, which provide a qualitative insight into the examined effect. Coordination of aliphatic fluorides leads to an increase of the negative potential of the F atoms, and, hence, an increase in the hydrogen-bonding acceptor ability (strengthening of C-H/F interactions) and a weakening of the F/F interactions, due to an increase in repulsive interactions between the F atoms. There is no significant change in the potential of the F atoms due to coordination of C6-aromatic fluorides, as in the case of aliphatic ones. This results in slight changes in the strengths of the C-H/F and F/F interactions (coupled with parallel interaction at large offsets, PILO), in a noticeable enhancement of stacking interactions, as well as in a significant enhancement of interactions involving the π-system (F/πand C-H/πinteractions). It has also been shown that a decrease in the charge of the metal ions leads to a decrease in the negative potential of the F atom and also that the nature of the metal ion has a significant influence on the value of the potential of the F atoms.",
journal = "Crystal Growth & Design",
title = "Supramolecular Perspective of Coordination Effects on Fluorine Interactions",
volume = "21",
number = "11",
pages = "6129-6142",
doi = "10.1021/acs.cgd.1c00584"
}
Petković Benazzouz, M. M., Rakić, A. A., Trišović, N. P., Zarić, B.,& Janjić, G. V.. (2021). Supramolecular Perspective of Coordination Effects on Fluorine Interactions. in Crystal Growth & Design, 21(11), 6129-6142.
https://doi.org/10.1021/acs.cgd.1c00584
Petković Benazzouz MM, Rakić AA, Trišović NP, Zarić B, Janjić GV. Supramolecular Perspective of Coordination Effects on Fluorine Interactions. in Crystal Growth & Design. 2021;21(11):6129-6142.
doi:10.1021/acs.cgd.1c00584 .
Petković Benazzouz, Marija M., Rakić, Aleksandra A., Trišović, Nemanja P., Zarić, Božidarka, Janjić, Goran V., "Supramolecular Perspective of Coordination Effects on Fluorine Interactions" in Crystal Growth & Design, 21, no. 11 (2021):6129-6142,
https://doi.org/10.1021/acs.cgd.1c00584 . .

Probing the CP properties of the Higgs sector at ILC

Agatonović-Jovin, Tatjana; Božović-Jelisavčić, Ivanka; Smiljanić, Ivan; Kačarević, Goran; Vukašinović, Nataša; Milutinović-Dumbelović, Gordana; Stevanović, Jasna M.; Radulović, Mirko M.; Jeans, Daniel T.

(2021)

TY  - CONF
AU  - Agatonović-Jovin, Tatjana
AU  - Božović-Jelisavčić, Ivanka
AU  - Smiljanić, Ivan
AU  - Kačarević, Goran
AU  - Vukašinović, Nataša
AU  - Milutinović-Dumbelović, Gordana
AU  - Stevanović, Jasna M.
AU  - Radulović, Mirko M.
AU  - Jeans, Daniel T.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9993
AB  - The violation of CP symmetry is one of Sakharov's conditions for the matter-antimatter asymmetry of the Universe. Currently known sources of CP violation in the quark and neutrino sectors are insufficient to account for this. Is CP also violated in the Higgs sector? Could the SM-like Higgs boson be a mixture of even and odd CP states of an extended Higgs sector? With what precision could such effects be measured at future electron-positron colliders? These questions will be discussed in the light of the latest and ongoing studies at ILC.
C3  - International Workshop on Future Linear Colliders, LCWS 2021
T1  - Probing the CP properties of the Higgs sector at ILC
ER  - 
@conference{
author = "Agatonović-Jovin, Tatjana and Božović-Jelisavčić, Ivanka and Smiljanić, Ivan and Kačarević, Goran and Vukašinović, Nataša and Milutinović-Dumbelović, Gordana and Stevanović, Jasna M. and Radulović, Mirko M. and Jeans, Daniel T.",
year = "2021",
abstract = "The violation of CP symmetry is one of Sakharov's conditions for the matter-antimatter asymmetry of the Universe. Currently known sources of CP violation in the quark and neutrino sectors are insufficient to account for this. Is CP also violated in the Higgs sector? Could the SM-like Higgs boson be a mixture of even and odd CP states of an extended Higgs sector? With what precision could such effects be measured at future electron-positron colliders? These questions will be discussed in the light of the latest and ongoing studies at ILC.",
journal = "International Workshop on Future Linear Colliders, LCWS 2021",
title = "Probing the CP properties of the Higgs sector at ILC"
}
Agatonović-Jovin, T., Božović-Jelisavčić, I., Smiljanić, I., Kačarević, G., Vukašinović, N., Milutinović-Dumbelović, G., Stevanović, J. M., Radulović, M. M.,& Jeans, D. T.. (2021). Probing the CP properties of the Higgs sector at ILC. in International Workshop on Future Linear Colliders, LCWS 2021.
Agatonović-Jovin T, Božović-Jelisavčić I, Smiljanić I, Kačarević G, Vukašinović N, Milutinović-Dumbelović G, Stevanović JM, Radulović MM, Jeans DT. Probing the CP properties of the Higgs sector at ILC. in International Workshop on Future Linear Colliders, LCWS 2021. 2021;..
Agatonović-Jovin, Tatjana, Božović-Jelisavčić, Ivanka, Smiljanić, Ivan, Kačarević, Goran, Vukašinović, Nataša, Milutinović-Dumbelović, Gordana, Stevanović, Jasna M., Radulović, Mirko M., Jeans, Daniel T., "Probing the CP properties of the Higgs sector at ILC" in International Workshop on Future Linear Colliders, LCWS 2021 (2021).

Integrated luminosity measurement at CEPC

Smiljanić, Ivan; Božović-Jelisavčić, Ivanka; Kačarević, Goran; Vukašinović, Nataša; Agatonović-Jovin, Tatjana; Milutinović-Dumbelović, Gordana; Stevanović, Jasna M.; Radulović, Mirko M.

(2021)

TY  - CONF
AU  - Smiljanić, Ivan
AU  - Božović-Jelisavčić, Ivanka
AU  - Kačarević, Goran
AU  - Vukašinović, Nataša
AU  - Agatonović-Jovin, Tatjana
AU  - Milutinović-Dumbelović, Gordana
AU  - Stevanović, Jasna M.
AU  - Radulović, Mirko M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9992
AB  - The very forward region is one of the most challenging regions to instrument at a future e+e- collider. At CEPC, machine-detector interface includes, among others, a calorimeter dedicated for precision measurement of the integrated luminosity at a permille level or better. Here we review a feasibility of such precision, from the point of view of luminometer mechanical precision and positioning, beam-related requirements and physics background. A method of the effective center-of-mass determination from e+e-→μ+μ-, initially proposed for FCC, is also discussed for the CEPC beams.
C3  - International Workshop on Future Linear Colliders, LCWS 2021
T1  - Integrated luminosity measurement at CEPC
ER  - 
@conference{
author = "Smiljanić, Ivan and Božović-Jelisavčić, Ivanka and Kačarević, Goran and Vukašinović, Nataša and Agatonović-Jovin, Tatjana and Milutinović-Dumbelović, Gordana and Stevanović, Jasna M. and Radulović, Mirko M.",
year = "2021",
abstract = "The very forward region is one of the most challenging regions to instrument at a future e+e- collider. At CEPC, machine-detector interface includes, among others, a calorimeter dedicated for precision measurement of the integrated luminosity at a permille level or better. Here we review a feasibility of such precision, from the point of view of luminometer mechanical precision and positioning, beam-related requirements and physics background. A method of the effective center-of-mass determination from e+e-→μ+μ-, initially proposed for FCC, is also discussed for the CEPC beams.",
journal = "International Workshop on Future Linear Colliders, LCWS 2021",
title = "Integrated luminosity measurement at CEPC"
}
Smiljanić, I., Božović-Jelisavčić, I., Kačarević, G., Vukašinović, N., Agatonović-Jovin, T., Milutinović-Dumbelović, G., Stevanović, J. M.,& Radulović, M. M.. (2021). Integrated luminosity measurement at CEPC. in International Workshop on Future Linear Colliders, LCWS 2021.
Smiljanić I, Božović-Jelisavčić I, Kačarević G, Vukašinović N, Agatonović-Jovin T, Milutinović-Dumbelović G, Stevanović JM, Radulović MM. Integrated luminosity measurement at CEPC. in International Workshop on Future Linear Colliders, LCWS 2021. 2021;..
Smiljanić, Ivan, Božović-Jelisavčić, Ivanka, Kačarević, Goran, Vukašinović, Nataša, Agatonović-Jovin, Tatjana, Milutinović-Dumbelović, Gordana, Stevanović, Jasna M., Radulović, Mirko M., "Integrated luminosity measurement at CEPC" in International Workshop on Future Linear Colliders, LCWS 2021 (2021).

Measurement of the Higgs branching ratio BR(H → γγ) at 3 TeV CLIC

Kačarević, Goran; Božović-Jelisavčić, Ivanka; Vukašinović, Nataša; Milutinović-Dumbelović, Gordana; Radulović, Mirko M.; Stevanović, Jasna M.; Agatonović-Jovin, Tatjana

(2021)

TY  - CONF
AU  - Kačarević, Goran
AU  - Božović-Jelisavčić, Ivanka
AU  - Vukašinović, Nataša
AU  - Milutinović-Dumbelović, Gordana
AU  - Radulović, Mirko M.
AU  - Stevanović, Jasna M.
AU  - Agatonović-Jovin, Tatjana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9995
AB  - In this paper we address the potential of a 3 TeV center-of-mass energy Compact Linear Collider (CLIC) to measure the Standard Model (SM) Higgs boson decay to two photons. Since photons are massless, they are not coupled to the Higgs boson at tree level, but they are created in a loop exchange of heavy particles either from the Standard Model or beyond. Any deviation of the effective H → γγ branching ratio and consequently of the Higgs to photon coupling may indicate New Physics. The Higgs decay to two photons is thus an interesting probe of the Higgs sector, both at the running and future experiments. A similar study has been performed at 1.4 TeV CLIC, where the statistical uncertainty is determined to be 15% for an integrated luminosity of 1.5 ab−1 with unpolarized beams. This study is performed using a full simulation of the detector for CLIC and by considering all relevant physics and beam-induced processes in a full reconstruction chain. The measurement is simulated on 5000 pseudo-experiments and the relative statistical uncertainty is extracted from the pull distribution. It is shown that the Higgs production cross-section in W+W− fusion times the branching ratio BR(H → γγ) can be measured with a relative statistical accuracy of 8.2%, assuming an integrated luminosity of 5 ab−1 with unpolarized beams.
C3  - International Workshop on Future Linear Colliders, LCWS 2021
T1  - Measurement of the Higgs branching ratio BR(H → γγ) at 3 TeV CLIC
ER  - 
@conference{
author = "Kačarević, Goran and Božović-Jelisavčić, Ivanka and Vukašinović, Nataša and Milutinović-Dumbelović, Gordana and Radulović, Mirko M. and Stevanović, Jasna M. and Agatonović-Jovin, Tatjana",
year = "2021",
abstract = "In this paper we address the potential of a 3 TeV center-of-mass energy Compact Linear Collider (CLIC) to measure the Standard Model (SM) Higgs boson decay to two photons. Since photons are massless, they are not coupled to the Higgs boson at tree level, but they are created in a loop exchange of heavy particles either from the Standard Model or beyond. Any deviation of the effective H → γγ branching ratio and consequently of the Higgs to photon coupling may indicate New Physics. The Higgs decay to two photons is thus an interesting probe of the Higgs sector, both at the running and future experiments. A similar study has been performed at 1.4 TeV CLIC, where the statistical uncertainty is determined to be 15% for an integrated luminosity of 1.5 ab−1 with unpolarized beams. This study is performed using a full simulation of the detector for CLIC and by considering all relevant physics and beam-induced processes in a full reconstruction chain. The measurement is simulated on 5000 pseudo-experiments and the relative statistical uncertainty is extracted from the pull distribution. It is shown that the Higgs production cross-section in W+W− fusion times the branching ratio BR(H → γγ) can be measured with a relative statistical accuracy of 8.2%, assuming an integrated luminosity of 5 ab−1 with unpolarized beams.",
journal = "International Workshop on Future Linear Colliders, LCWS 2021",
title = "Measurement of the Higgs branching ratio BR(H → γγ) at 3 TeV CLIC"
}
Kačarević, G., Božović-Jelisavčić, I., Vukašinović, N., Milutinović-Dumbelović, G., Radulović, M. M., Stevanović, J. M.,& Agatonović-Jovin, T.. (2021). Measurement of the Higgs branching ratio BR(H → γγ) at 3 TeV CLIC. in International Workshop on Future Linear Colliders, LCWS 2021.
Kačarević G, Božović-Jelisavčić I, Vukašinović N, Milutinović-Dumbelović G, Radulović MM, Stevanović JM, Agatonović-Jovin T. Measurement of the Higgs branching ratio BR(H → γγ) at 3 TeV CLIC. in International Workshop on Future Linear Colliders, LCWS 2021. 2021;..
Kačarević, Goran, Božović-Jelisavčić, Ivanka, Vukašinović, Nataša, Milutinović-Dumbelović, Gordana, Radulović, Mirko M., Stevanović, Jasna M., Agatonović-Jovin, Tatjana, "Measurement of the Higgs branching ratio BR(H → γγ) at 3 TeV CLIC" in International Workshop on Future Linear Colliders, LCWS 2021 (2021).

Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC

Vukašinović, Nataša; Božović-Jelisavčić, Ivanka; Smiljanić, Ivan; Kačarević, Goran; Milutinović-Dumbelović, Gordana; Agatonović-Jovin, Tatjana; Radulović, Mirko M.; Stevanović, Jasna M.

(2021)

TY  - CONF
AU  - Vukašinović, Nataša
AU  - Božović-Jelisavčić, Ivanka
AU  - Smiljanić, Ivan
AU  - Kačarević, Goran
AU  - Milutinović-Dumbelović, Gordana
AU  - Agatonović-Jovin, Tatjana
AU  - Radulović, Mirko M.
AU  - Stevanović, Jasna M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9990
AB  - The violation of CP symmetry is one of Sakharov's conditions for the matter-antimatter asymmetry of the Universe. Currently known sources of CP violation in the quark and neutrino sectors are insufficient to account for this. Is CP also violated in the Higgs sector? Could the SM-like Higgs boson be a mixture of even and odd CP states of an extended Higgs sector? With what precision could such effects be measured at future electron-positron colliders? These questions will be discussed in the light of the latest and ongoing studies at ILC.
C3  - International Workshop on Future Linear Colliders, LCWS 2021
T1  - Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC
ER  - 
@conference{
author = "Vukašinović, Nataša and Božović-Jelisavčić, Ivanka and Smiljanić, Ivan and Kačarević, Goran and Milutinović-Dumbelović, Gordana and Agatonović-Jovin, Tatjana and Radulović, Mirko M. and Stevanović, Jasna M.",
year = "2021",
abstract = "The violation of CP symmetry is one of Sakharov's conditions for the matter-antimatter asymmetry of the Universe. Currently known sources of CP violation in the quark and neutrino sectors are insufficient to account for this. Is CP also violated in the Higgs sector? Could the SM-like Higgs boson be a mixture of even and odd CP states of an extended Higgs sector? With what precision could such effects be measured at future electron-positron colliders? These questions will be discussed in the light of the latest and ongoing studies at ILC.",
journal = "International Workshop on Future Linear Colliders, LCWS 2021",
title = "Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC"
}
Vukašinović, N., Božović-Jelisavčić, I., Smiljanić, I., Kačarević, G., Milutinović-Dumbelović, G., Agatonović-Jovin, T., Radulović, M. M.,& Stevanović, J. M.. (2021). Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC. in International Workshop on Future Linear Colliders, LCWS 2021.
Vukašinović N, Božović-Jelisavčić I, Smiljanić I, Kačarević G, Milutinović-Dumbelović G, Agatonović-Jovin T, Radulović MM, Stevanović JM. Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC. in International Workshop on Future Linear Colliders, LCWS 2021. 2021;..
Vukašinović, Nataša, Božović-Jelisavčić, Ivanka, Smiljanić, Ivan, Kačarević, Goran, Milutinović-Dumbelović, Gordana, Agatonović-Jovin, Tatjana, Radulović, Mirko M., Stevanović, Jasna M., "Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC" in International Workshop on Future Linear Colliders, LCWS 2021 (2021).

MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV

Sirunyan, A.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Adžić, Petar; Ćirković, Predrag; Đorđević, Miloš; Milenović, Predrag; Milošević, Jovan

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Ambrogi, F.
AU  - Bergauer, T.
AU  - Adžić, Petar
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9988
AB  - Results of the Model Unspecific Search in CMS (MUSiC), using proton–proton collision data recorded at the LHC at a centre-of-mass energy of 13 $$\,\text {TeV}$$     TeV    , corresponding to an integrated luminosity of 35.9 $$\,\text {fb}^{-1}$$      fb  - 1      , are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.
T2  - European Physical Journal C
T1  - MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV
VL  - 81
IS  - 7
SP  - 629
DO  - 10.1140/epjc/s10052-021-09236-z
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Bergauer, T. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "Results of the Model Unspecific Search in CMS (MUSiC), using proton–proton collision data recorded at the LHC at a centre-of-mass energy of 13 $$\,\text {TeV}$$     TeV    , corresponding to an integrated luminosity of 35.9 $$\,\text {fb}^{-1}$$      fb  - 1      , are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.",
journal = "European Physical Journal C",
title = "MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV",
volume = "81",
number = "7",
pages = "629",
doi = "10.1140/epjc/s10052-021-09236-z"
}
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV. in European Physical Journal C, 81(7), 629.
https://doi.org/10.1140/epjc/s10052-021-09236-z
Sirunyan A, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV. in European Physical Journal C. 2021;81(7):629.
doi:10.1140/epjc/s10052-021-09236-z .
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV" in European Physical Journal C, 81, no. 7 (2021):629,
https://doi.org/10.1140/epjc/s10052-021-09236-z . .
1
1

Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method

Papan, Jelena; Hribar Boštjančič, Patricija; Mertelj, Alenka; Lisjak, Darja

(2021)

TY  - JOUR
AU  - Papan, Jelena
AU  - Hribar Boštjančič, Patricija
AU  - Mertelj, Alenka
AU  - Lisjak, Darja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9982
AB  - Janus particles, which have two surfaces exhibiting different properties, are promising candidates for various applications. For example, magneto-optic Janus particles could be used for in-vivo cancer imaging, drug delivery, and photothermal therapy. The preparation of such materials on a relatively large scale is challenging, especially if the Janus structure consists of a hard magnetic material like barium hexaferrite nanoplatelets. The focus of this study was to adopt the known Pickering emulsion, i.e., Granick’s method, for the preparation of barium-hexaferrite/gold Janus nanoplatelets. The wax-in-water Pickering emulsions were stabilized with a combination of cetyltrimethyl ammonium bromide and barium hexaferrite nanoplatelets at 80 °C. Colloidosomes of solidified wax covered with the barium hexaferrite nanoplatelets formed after cooling the Pickering emulsions to room temperature. The formation and microstructure of the colloidosomes were thoroughly studied by optical and scanning electron microscopy. The process was optimized by various processing parameters, such as the composition of the emulsion system and the speed and time of emulsification. The colloidosomes with the highest surface coverage were used to prepare the Janus nanoplatelets by decorating the exposed surfaces of the barium hexaferrite nanoplatelets with gold nanospheres using mercaptan chemistry. Transmission electron microscopy was used to inspect the barium-hexaferrite/gold Janus nanoplatelets that were prepared for the first time.
T2  - Nanomaterials
T1  - Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method
VL  - 11
IS  - 11
SP  - 2797
DO  - 10.3390/nano11112797
ER  - 
@article{
author = "Papan, Jelena and Hribar Boštjančič, Patricija and Mertelj, Alenka and Lisjak, Darja",
year = "2021",
abstract = "Janus particles, which have two surfaces exhibiting different properties, are promising candidates for various applications. For example, magneto-optic Janus particles could be used for in-vivo cancer imaging, drug delivery, and photothermal therapy. The preparation of such materials on a relatively large scale is challenging, especially if the Janus structure consists of a hard magnetic material like barium hexaferrite nanoplatelets. The focus of this study was to adopt the known Pickering emulsion, i.e., Granick’s method, for the preparation of barium-hexaferrite/gold Janus nanoplatelets. The wax-in-water Pickering emulsions were stabilized with a combination of cetyltrimethyl ammonium bromide and barium hexaferrite nanoplatelets at 80 °C. Colloidosomes of solidified wax covered with the barium hexaferrite nanoplatelets formed after cooling the Pickering emulsions to room temperature. The formation and microstructure of the colloidosomes were thoroughly studied by optical and scanning electron microscopy. The process was optimized by various processing parameters, such as the composition of the emulsion system and the speed and time of emulsification. The colloidosomes with the highest surface coverage were used to prepare the Janus nanoplatelets by decorating the exposed surfaces of the barium hexaferrite nanoplatelets with gold nanospheres using mercaptan chemistry. Transmission electron microscopy was used to inspect the barium-hexaferrite/gold Janus nanoplatelets that were prepared for the first time.",
journal = "Nanomaterials",
title = "Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method",
volume = "11",
number = "11",
pages = "2797",
doi = "10.3390/nano11112797"
}
Papan, J., Hribar Boštjančič, P., Mertelj, A.,& Lisjak, D.. (2021). Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method. in Nanomaterials, 11(11), 2797.
https://doi.org/10.3390/nano11112797
Papan J, Hribar Boštjančič P, Mertelj A, Lisjak D. Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method. in Nanomaterials. 2021;11(11):2797.
doi:10.3390/nano11112797 .
Papan, Jelena, Hribar Boštjančič, Patricija, Mertelj, Alenka, Lisjak, Darja, "Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method" in Nanomaterials, 11, no. 11 (2021):2797,
https://doi.org/10.3390/nano11112797 . .

Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star

Borka, Duško; Borka Jovanović, Vesna; Capozziello, Salvatore; Zakharov, Alexander F.; Jovanović, Predrag

(2021)

TY  - JOUR
AU  - Borka, Duško
AU  - Borka Jovanović, Vesna
AU  - Capozziello, Salvatore
AU  - Zakharov, Alexander F.
AU  - Jovanović, Predrag
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9981
AB  - After giving a short overview of previous results on constraining of Extended Gravity by stellar orbits, we discuss the Schwarzschild orbital precession of S2 star assuming the congruence with predictions of General Relativity (GR). At the moment, the S2 star trajectory is remarkably fitted with the first post-Newtonian approximation of GR. In particular, both Keck and VLT (GRAVITY) teams declared that the gravitational redshift near its pericenter passage for the S2 star orbit corresponds to theoretical estimates found with the first post-Newtonian (pN) approximation. In 2020, the GRAVITY Collaboration detected the orbital precession of the S2 star around the supermassive black hole (SMBH) at the Galactic Center and showed that it is close to the GR prediction. Based on this observational fact, we evaluated parameters of the Extended Gravity theories with the Schwarzschild precession of the S2 star. Using the mentioned method, we estimate the orbital precession angles for some Extended Gravity models including power-law f(R), general Yukawa-like corrections, scalar–tensor gravity, and non-local gravity theories formulated in both metric and Palatini formalism. In this consideration, we assume that a gravitational field is spherically symmetric, therefore, alternative theories of gravity could be described only with a few parameters. Specifically, considering the orbital precession, we estimate the range of parameters of these Extended Gravity models for which the orbital precession is like in GR. Then we compare these results with our previous results, which were obtained by fitting the simulated orbits of S2 star to its observed astrometric positions. In case of power-law f(R), generic Yukawa-like correction, scalar–tensor gravity and non-local gravity theories, we were able to obtain a prograde orbital precession, like in GR. According to these results, the method is a useful tool to evaluate parameters of the gravitational potential at the Galactic Center.
T2  - Universe
T1  - Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star
VL  - 7
IS  - 11
SP  - 407
DO  - 10.3390/universe7110407
ER  - 
@article{
author = "Borka, Duško and Borka Jovanović, Vesna and Capozziello, Salvatore and Zakharov, Alexander F. and Jovanović, Predrag",
year = "2021",
abstract = "After giving a short overview of previous results on constraining of Extended Gravity by stellar orbits, we discuss the Schwarzschild orbital precession of S2 star assuming the congruence with predictions of General Relativity (GR). At the moment, the S2 star trajectory is remarkably fitted with the first post-Newtonian approximation of GR. In particular, both Keck and VLT (GRAVITY) teams declared that the gravitational redshift near its pericenter passage for the S2 star orbit corresponds to theoretical estimates found with the first post-Newtonian (pN) approximation. In 2020, the GRAVITY Collaboration detected the orbital precession of the S2 star around the supermassive black hole (SMBH) at the Galactic Center and showed that it is close to the GR prediction. Based on this observational fact, we evaluated parameters of the Extended Gravity theories with the Schwarzschild precession of the S2 star. Using the mentioned method, we estimate the orbital precession angles for some Extended Gravity models including power-law f(R), general Yukawa-like corrections, scalar–tensor gravity, and non-local gravity theories formulated in both metric and Palatini formalism. In this consideration, we assume that a gravitational field is spherically symmetric, therefore, alternative theories of gravity could be described only with a few parameters. Specifically, considering the orbital precession, we estimate the range of parameters of these Extended Gravity models for which the orbital precession is like in GR. Then we compare these results with our previous results, which were obtained by fitting the simulated orbits of S2 star to its observed astrometric positions. In case of power-law f(R), generic Yukawa-like correction, scalar–tensor gravity and non-local gravity theories, we were able to obtain a prograde orbital precession, like in GR. According to these results, the method is a useful tool to evaluate parameters of the gravitational potential at the Galactic Center.",
journal = "Universe",
title = "Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star",
volume = "7",
number = "11",
pages = "407",
doi = "10.3390/universe7110407"
}
Borka, D., Borka Jovanović, V., Capozziello, S., Zakharov, A. F.,& Jovanović, P.. (2021). Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star. in Universe, 7(11), 407.
https://doi.org/10.3390/universe7110407
Borka D, Borka Jovanović V, Capozziello S, Zakharov AF, Jovanović P. Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star. in Universe. 2021;7(11):407.
doi:10.3390/universe7110407 .
Borka, Duško, Borka Jovanović, Vesna, Capozziello, Salvatore, Zakharov, Alexander F., Jovanović, Predrag, "Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star" in Universe, 7, no. 11 (2021):407,
https://doi.org/10.3390/universe7110407 . .
8

Graphene quantum dot antioxidant and proautophagic actions protect SH-SY5Y neuroblastoma cells from oxidative stress-mediated apoptotic death

Krunić, Matija; Ristić, Biljana; Bošnjak, Mihajlo; Paunović, Verica; Tovilović-Kovačević, Gordana; Zogović, Nevena; Mirčić, Aleksandar; Marković, Zoran; Todorović-Marković, Biljana; Jovanović, Svetlana; Kleut, Duška; Mojović, Miloš; Nakarada, Đura; Marković, Olivera; Vuković, Irena; Harhaji-Trajković, Ljubica; Trajković, Vladimir

(2021)

TY  - JOUR
AU  - Krunić, Matija
AU  - Ristić, Biljana
AU  - Bošnjak, Mihajlo
AU  - Paunović, Verica
AU  - Tovilović-Kovačević, Gordana
AU  - Zogović, Nevena
AU  - Mirčić, Aleksandar
AU  - Marković, Zoran
AU  - Todorović-Marković, Biljana
AU  - Jovanović, Svetlana
AU  - Kleut, Duška
AU  - Mojović, Miloš
AU  - Nakarada, Đura
AU  - Marković, Olivera
AU  - Vuković, Irena
AU  - Harhaji-Trajković, Ljubica
AU  - Trajković, Vladimir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9980
AB  - We investigated the ability of graphene quantum dot (GQD) nanoparticles to protect SH-SY5Y human neuroblastoma cells from oxidative/nitrosative stress induced by iron-nitrosyl complex sodium nitroprusside (SNP).GQD reduced SNP cytotoxicity by preventing mitochondrial depolarization, caspase-2 activation, and subsequent apoptotic death. Although GQD diminished the levels of nitric oxide (NO) in SNP-exposed cells, NO scavengers displayed only a slight protective effect, suggesting that NO quenching was not the main protective mechanism of GQD. GQD also reduced SNP-triggered increase in the intracellular levels of hydroxyl radical (•OH), superoxide anion (O2•- ), and lipid peroxidation. Nonselective antioxidants, •OH scavenging, and iron chelators, but not superoxide dismutase, mimicked GQD cytoprotective activity, indicating that GQD protect cells by neutralizing •OH generated in the presence of SNP-released iron. Cellular internalization of GQD was required for optimal protection, since a removal of extracellular GQD by extensive washing only partly diminished their protective effect. Moreover, GQD cooperated with SNP to induce autophagy, as confirmed by the inhibition of autophagylimiting Akt/PRAS40/mTOR signaling and increase in autophagy gene transcription, protein levels of proautophagic beclin-1 and LC3-II, formation of autophagic vesicles, and degradation of autophagic target p62. The antioxidant activity of GQD was not involved in autophagy induction, as antioxidants N-acetylcysteine and dimethyl sulfoxide failed to stimulate autophagy in SNP-exposed cells. Pharmacological inhibitors of early (wortmannin, 3-methyladenine) or late stages of autophagy (NH4Cl) efficiently reduced the protective effect of GQD. Therefore, the ability of GQD to prevent the in vitro neurotoxicity of SNP depends on both •OH/NO scavenging and induction of cytoprotective autophagy.
T2  - Free Radical Biology and Medicine
T1  - Graphene quantum dot antioxidant and proautophagic actions protect SH-SY5Y neuroblastoma cells from oxidative stress-mediated apoptotic death
VL  - 177
SP  - 167
EP  - 180
DO  - 10.1016/j.freeradbiomed.2021.10.025
ER  - 
@article{
author = "Krunić, Matija and Ristić, Biljana and Bošnjak, Mihajlo and Paunović, Verica and Tovilović-Kovačević, Gordana and Zogović, Nevena and Mirčić, Aleksandar and Marković, Zoran and Todorović-Marković, Biljana and Jovanović, Svetlana and Kleut, Duška and Mojović, Miloš and Nakarada, Đura and Marković, Olivera and Vuković, Irena and Harhaji-Trajković, Ljubica and Trajković, Vladimir",
year = "2021",
abstract = "We investigated the ability of graphene quantum dot (GQD) nanoparticles to protect SH-SY5Y human neuroblastoma cells from oxidative/nitrosative stress induced by iron-nitrosyl complex sodium nitroprusside (SNP).GQD reduced SNP cytotoxicity by preventing mitochondrial depolarization, caspase-2 activation, and subsequent apoptotic death. Although GQD diminished the levels of nitric oxide (NO) in SNP-exposed cells, NO scavengers displayed only a slight protective effect, suggesting that NO quenching was not the main protective mechanism of GQD. GQD also reduced SNP-triggered increase in the intracellular levels of hydroxyl radical (•OH), superoxide anion (O2•- ), and lipid peroxidation. Nonselective antioxidants, •OH scavenging, and iron chelators, but not superoxide dismutase, mimicked GQD cytoprotective activity, indicating that GQD protect cells by neutralizing •OH generated in the presence of SNP-released iron. Cellular internalization of GQD was required for optimal protection, since a removal of extracellular GQD by extensive washing only partly diminished their protective effect. Moreover, GQD cooperated with SNP to induce autophagy, as confirmed by the inhibition of autophagylimiting Akt/PRAS40/mTOR signaling and increase in autophagy gene transcription, protein levels of proautophagic beclin-1 and LC3-II, formation of autophagic vesicles, and degradation of autophagic target p62. The antioxidant activity of GQD was not involved in autophagy induction, as antioxidants N-acetylcysteine and dimethyl sulfoxide failed to stimulate autophagy in SNP-exposed cells. Pharmacological inhibitors of early (wortmannin, 3-methyladenine) or late stages of autophagy (NH4Cl) efficiently reduced the protective effect of GQD. Therefore, the ability of GQD to prevent the in vitro neurotoxicity of SNP depends on both •OH/NO scavenging and induction of cytoprotective autophagy.",
journal = "Free Radical Biology and Medicine",
title = "Graphene quantum dot antioxidant and proautophagic actions protect SH-SY5Y neuroblastoma cells from oxidative stress-mediated apoptotic death",
volume = "177",
pages = "167-180",
doi = "10.1016/j.freeradbiomed.2021.10.025"
}
Krunić, M., Ristić, B., Bošnjak, M., Paunović, V., Tovilović-Kovačević, G., Zogović, N., Mirčić, A., Marković, Z., Todorović-Marković, B., Jovanović, S., Kleut, D., Mojović, M., Nakarada, Đ., Marković, O., Vuković, I., Harhaji-Trajković, L.,& Trajković, V.. (2021). Graphene quantum dot antioxidant and proautophagic actions protect SH-SY5Y neuroblastoma cells from oxidative stress-mediated apoptotic death. in Free Radical Biology and Medicine, 177, 167-180.
https://doi.org/10.1016/j.freeradbiomed.2021.10.025
Krunić M, Ristić B, Bošnjak M, Paunović V, Tovilović-Kovačević G, Zogović N, Mirčić A, Marković Z, Todorović-Marković B, Jovanović S, Kleut D, Mojović M, Nakarada Đ, Marković O, Vuković I, Harhaji-Trajković L, Trajković V. Graphene quantum dot antioxidant and proautophagic actions protect SH-SY5Y neuroblastoma cells from oxidative stress-mediated apoptotic death. in Free Radical Biology and Medicine. 2021;177:167-180.
doi:10.1016/j.freeradbiomed.2021.10.025 .
Krunić, Matija, Ristić, Biljana, Bošnjak, Mihajlo, Paunović, Verica, Tovilović-Kovačević, Gordana, Zogović, Nevena, Mirčić, Aleksandar, Marković, Zoran, Todorović-Marković, Biljana, Jovanović, Svetlana, Kleut, Duška, Mojović, Miloš, Nakarada, Đura, Marković, Olivera, Vuković, Irena, Harhaji-Trajković, Ljubica, Trajković, Vladimir, "Graphene quantum dot antioxidant and proautophagic actions protect SH-SY5Y neuroblastoma cells from oxidative stress-mediated apoptotic death" in Free Radical Biology and Medicine, 177 (2021):167-180,
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Electrochemical stability and degradation of commercial Rh/C catalyst in acidic media

Smiljanić, Milutin; Bele, Marjan; Ruiz-Zepeda, Francisco; Šala, Martin; Kroflič, Ana; Hodnik, Nejc

(2021)

TY  - JOUR
AU  - Smiljanić, Milutin
AU  - Bele, Marjan
AU  - Ruiz-Zepeda, Francisco
AU  - Šala, Martin
AU  - Kroflič, Ana
AU  - Hodnik, Nejc
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9979
AB  - Electrochemical stability of a commercial Rh/C catalyst has been studied in an acidic electrolyte by accelerated degradation protocols (ADP) which involved 5000 rapid voltammetric scans (1 V/s) in two potential regions: ADP1 was performed between 0.4 VRHE and 1.4 VRHE, while ADP2 was performed between 0.05 VRHE and 1.4 VRHE. Degradation of Rh/C was monitored by the changes in Rh electrochemical surface area (ECSA) and electrocatalytic activity for hydrogen evolution (HER) and oxygen reduction (ORR). Rh/C catalyst was particularly stable during ADP1 showing only a minor loss of ECSA, while its electrocatalytic activity for HER and ORR was practically unaffected, which was further corroborated with identical location SEM (IL-SEM) imaging. In the case of ADP2, severe degradation of Rh/C occurred followed by substantial decay in its electrocatalytic activity. Coupling of the electrochemical flow cell (EFC) with ICP-MS revealed much higher Rh dissolution in ADP2 than in ADP1. IL-SEM in combination with ex-situ TEM imaging showed that degradation of the Rh/C sample is not homogeneous during ADP2, as dissolution prevails on certain locations, while dissolution followed by re-deposition occurs on others. According to the results obtained in this work, Rh/C catalysts are exceptionally sensitive to the sudden potential jumps between particularly low and high values.
T2  - Electrochimica Acta
T1  - Electrochemical stability and degradation of commercial Rh/C catalyst in acidic media
VL  - 400
SP  - 139435
DO  - 10.1016/j.electacta.2021.139435
ER  - 
@article{
author = "Smiljanić, Milutin and Bele, Marjan and Ruiz-Zepeda, Francisco and Šala, Martin and Kroflič, Ana and Hodnik, Nejc",
year = "2021",
abstract = "Electrochemical stability of a commercial Rh/C catalyst has been studied in an acidic electrolyte by accelerated degradation protocols (ADP) which involved 5000 rapid voltammetric scans (1 V/s) in two potential regions: ADP1 was performed between 0.4 VRHE and 1.4 VRHE, while ADP2 was performed between 0.05 VRHE and 1.4 VRHE. Degradation of Rh/C was monitored by the changes in Rh electrochemical surface area (ECSA) and electrocatalytic activity for hydrogen evolution (HER) and oxygen reduction (ORR). Rh/C catalyst was particularly stable during ADP1 showing only a minor loss of ECSA, while its electrocatalytic activity for HER and ORR was practically unaffected, which was further corroborated with identical location SEM (IL-SEM) imaging. In the case of ADP2, severe degradation of Rh/C occurred followed by substantial decay in its electrocatalytic activity. Coupling of the electrochemical flow cell (EFC) with ICP-MS revealed much higher Rh dissolution in ADP2 than in ADP1. IL-SEM in combination with ex-situ TEM imaging showed that degradation of the Rh/C sample is not homogeneous during ADP2, as dissolution prevails on certain locations, while dissolution followed by re-deposition occurs on others. According to the results obtained in this work, Rh/C catalysts are exceptionally sensitive to the sudden potential jumps between particularly low and high values.",
journal = "Electrochimica Acta",
title = "Electrochemical stability and degradation of commercial Rh/C catalyst in acidic media",
volume = "400",
pages = "139435",
doi = "10.1016/j.electacta.2021.139435"
}
Smiljanić, M., Bele, M., Ruiz-Zepeda, F., Šala, M., Kroflič, A.,& Hodnik, N.. (2021). Electrochemical stability and degradation of commercial Rh/C catalyst in acidic media. in Electrochimica Acta, 400, 139435.
https://doi.org/10.1016/j.electacta.2021.139435
Smiljanić M, Bele M, Ruiz-Zepeda F, Šala M, Kroflič A, Hodnik N. Electrochemical stability and degradation of commercial Rh/C catalyst in acidic media. in Electrochimica Acta. 2021;400:139435.
doi:10.1016/j.electacta.2021.139435 .
Smiljanić, Milutin, Bele, Marjan, Ruiz-Zepeda, Francisco, Šala, Martin, Kroflič, Ana, Hodnik, Nejc, "Electrochemical stability and degradation of commercial Rh/C catalyst in acidic media" in Electrochimica Acta, 400 (2021):139435,
https://doi.org/10.1016/j.electacta.2021.139435 . .