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Amperometric determination of cholesterol using cholesterol oxidase immobilized on Pt,Ru-C nanocomposite and an ionic liquid-modified carbon paste electrode

Mutić, Sanja; Stanković, Dalibor; Konya, Z.; Anojčić, J.

TY  - CONF
AU  - Mutić, Sanja
AU  - Stanković, Dalibor
AU  - Konya, Z.
AU  - Anojčić, J.
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11962
AB  - Cholesterol as very important biomolecule is the precursor of many biologically significant compounds which give strength and flexibility to the biological membranes. It is also a crucial component in lipoproteins, and has an important role to transport hydrophobic molecules in hydrophilic media such as blood [1, 2]. The analytical performance of carbon paste electrodes (CPE) bulk modified with ionic liquid 1-allyl-3-methylimidazolium dicyanamide ([AMIM][DCA]), and surface modified with platinum on graphitized carbon (Pt-C) or platinum-ruthenium alloy on graphitized carbon (Pt,Ru-C) for analysis of hydrogen peroxide (H 2O2) were compared. The prepared working electrodes were characterized using scanning electron microscopy–energydispersive X-ray spectrometry, together with electrochemical impedance spectroscopic, cyclic voltammetric, and amperometric techniques. After method optimization, an enzyme cholesterol oxidase (ChOx) was immobilized on the surface of Pt,Ru-C/IL-CPE by Nafion®. The improved cholesterol amperometric determination was achieved in phosphate buffer solution pH 7.50 at a working potential of 0.60 V. Under the optimized experimental conditions, a linear relationship between oxidation current and cholesterol concentration was in the concentration range from 0.31 to 2.46 µM, with an estimated detection limit of 0.13 µM and relative standard deviation (RSD) below 4.2%. The optimized amperometric method in combination with the developed ChOx/Pt,Ru-C/IL-CPE biosensor showed good repeatability and high selectivity towards cholesterol biosensing despite the presence of possible interferences. The ChOx/Pt,Ru-C/IL-CPE was tested for the determination of the free cholesterol, by its enzymatic reaction product H 2O2, in a human blood serum sample. The percentage recovery ranged from 99.08 to 102.81%, while RSD was below 2.0% for untreated, as well as for spiked human blood serum sample.
PB  - University of Belgrade : Faculty of Chemistry
C3  - YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts
T1  - Amperometric determination of cholesterol using cholesterol oxidase immobilized on Pt,Ru-C nanocomposite and an ionic liquid-modified carbon paste electrode
SP  - 53
EP  - 53
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11962
ER  - 
@conference{
author = "Mutić, Sanja and Stanković, Dalibor and Konya, Z. and Anojčić, J.",
abstract = "Cholesterol as very important biomolecule is the precursor of many biologically significant compounds which give strength and flexibility to the biological membranes. It is also a crucial component in lipoproteins, and has an important role to transport hydrophobic molecules in hydrophilic media such as blood [1, 2]. The analytical performance of carbon paste electrodes (CPE) bulk modified with ionic liquid 1-allyl-3-methylimidazolium dicyanamide ([AMIM][DCA]), and surface modified with platinum on graphitized carbon (Pt-C) or platinum-ruthenium alloy on graphitized carbon (Pt,Ru-C) for analysis of hydrogen peroxide (H 2O2) were compared. The prepared working electrodes were characterized using scanning electron microscopy–energydispersive X-ray spectrometry, together with electrochemical impedance spectroscopic, cyclic voltammetric, and amperometric techniques. After method optimization, an enzyme cholesterol oxidase (ChOx) was immobilized on the surface of Pt,Ru-C/IL-CPE by Nafion®. The improved cholesterol amperometric determination was achieved in phosphate buffer solution pH 7.50 at a working potential of 0.60 V. Under the optimized experimental conditions, a linear relationship between oxidation current and cholesterol concentration was in the concentration range from 0.31 to 2.46 µM, with an estimated detection limit of 0.13 µM and relative standard deviation (RSD) below 4.2%. The optimized amperometric method in combination with the developed ChOx/Pt,Ru-C/IL-CPE biosensor showed good repeatability and high selectivity towards cholesterol biosensing despite the presence of possible interferences. The ChOx/Pt,Ru-C/IL-CPE was tested for the determination of the free cholesterol, by its enzymatic reaction product H 2O2, in a human blood serum sample. The percentage recovery ranged from 99.08 to 102.81%, while RSD was below 2.0% for untreated, as well as for spiked human blood serum sample.",
publisher = "University of Belgrade : Faculty of Chemistry",
journal = "YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts",
title = "Amperometric determination of cholesterol using cholesterol oxidase immobilized on Pt,Ru-C nanocomposite and an ionic liquid-modified carbon paste electrode",
pages = "53-53",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11962"
}
Mutić, S., Stanković, D., Konya, Z.,& Anojčić, J..Amperometric determination of cholesterol using cholesterol oxidase immobilized on Pt,Ru-C nanocomposite and an ionic liquid-modified carbon paste electrode. in YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts
University of Belgrade : Faculty of Chemistry., 53-53.
https://hdl.handle.net/21.15107/rcub_vinar_11962
Mutić S, Stanković D, Konya Z, Anojčić J. Amperometric determination of cholesterol using cholesterol oxidase immobilized on Pt,Ru-C nanocomposite and an ionic liquid-modified carbon paste electrode. in YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts.:53-53.
https://hdl.handle.net/21.15107/rcub_vinar_11962 .
Mutić, Sanja, Stanković, Dalibor, Konya, Z., Anojčić, J., "Amperometric determination of cholesterol using cholesterol oxidase immobilized on Pt,Ru-C nanocomposite and an ionic liquid-modified carbon paste electrode" in YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts:53-53,
https://hdl.handle.net/21.15107/rcub_vinar_11962 .

Employing carbon quantum dots to combat cytomegalovirus

Bulat, Tanja; Zmejkoski, Danica; Marković, Zoran; Satzinger, Melissa; Kovač, Janez; Strobl, Birgit; Milivojević, Dušan; Todorović Marković, Biljana

(2024)

TY  - JOUR
AU  - Bulat, Tanja
AU  - Zmejkoski, Danica
AU  - Marković, Zoran
AU  - Satzinger, Melissa
AU  - Kovač, Janez
AU  - Strobl, Birgit
AU  - Milivojević, Dušan
AU  - Todorović Marković, Biljana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11831
AB  - Carbon quantum dots (CQDs) are well known as a promising therapeutic agent due to their excellent pro-oxidant, antioxidant, antibacterial and anticancer properties under visible light irradiation. This material is easy to produce by several bottom-up or top-down methods. In this study, we used citric acid as starting precursor to synthesize aqueous carbon quantum dots dispersion by pyrolysis at 210 ◦C. Atomic force microscopy and XPS analyses revealed that CQDs synthesized are quasi-spherical with typical diameter of 9 nm and lots of C–O and C––O functional groups distributed over the basal plane and edges of the dots. Here, we investigated the antiviral properties of CQDs against cytomegalovirus (CMV). The pre-treatment with CQDs upregulates interferonstimulated genes (ISG), resulting in better virus control. Cellular defence against cytomegalovirus of CQDs pre-treated cells is increased in a dose-dependent manner. Our results reveal high biocompatibility and potent in vitro antiviral properties of CQDs.
T2  - Materials Chemistry and Physics
T1  - Employing carbon quantum dots to combat cytomegalovirus
VL  - 311
SP  - 128495
DO  - 10.1016/j.matchemphys.2023.128495
ER  - 
@article{
author = "Bulat, Tanja and Zmejkoski, Danica and Marković, Zoran and Satzinger, Melissa and Kovač, Janez and Strobl, Birgit and Milivojević, Dušan and Todorović Marković, Biljana",
year = "2024",
abstract = "Carbon quantum dots (CQDs) are well known as a promising therapeutic agent due to their excellent pro-oxidant, antioxidant, antibacterial and anticancer properties under visible light irradiation. This material is easy to produce by several bottom-up or top-down methods. In this study, we used citric acid as starting precursor to synthesize aqueous carbon quantum dots dispersion by pyrolysis at 210 ◦C. Atomic force microscopy and XPS analyses revealed that CQDs synthesized are quasi-spherical with typical diameter of 9 nm and lots of C–O and C––O functional groups distributed over the basal plane and edges of the dots. Here, we investigated the antiviral properties of CQDs against cytomegalovirus (CMV). The pre-treatment with CQDs upregulates interferonstimulated genes (ISG), resulting in better virus control. Cellular defence against cytomegalovirus of CQDs pre-treated cells is increased in a dose-dependent manner. Our results reveal high biocompatibility and potent in vitro antiviral properties of CQDs.",
journal = "Materials Chemistry and Physics",
title = "Employing carbon quantum dots to combat cytomegalovirus",
volume = "311",
pages = "128495",
doi = "10.1016/j.matchemphys.2023.128495"
}
Bulat, T., Zmejkoski, D., Marković, Z., Satzinger, M., Kovač, J., Strobl, B., Milivojević, D.,& Todorović Marković, B.. (2024). Employing carbon quantum dots to combat cytomegalovirus. in Materials Chemistry and Physics, 311, 128495.
https://doi.org/10.1016/j.matchemphys.2023.128495
Bulat T, Zmejkoski D, Marković Z, Satzinger M, Kovač J, Strobl B, Milivojević D, Todorović Marković B. Employing carbon quantum dots to combat cytomegalovirus. in Materials Chemistry and Physics. 2024;311:128495.
doi:10.1016/j.matchemphys.2023.128495 .
Bulat, Tanja, Zmejkoski, Danica, Marković, Zoran, Satzinger, Melissa, Kovač, Janez, Strobl, Birgit, Milivojević, Dušan, Todorović Marković, Biljana, "Employing carbon quantum dots to combat cytomegalovirus" in Materials Chemistry and Physics, 311 (2024):128495,
https://doi.org/10.1016/j.matchemphys.2023.128495 . .

LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology

Trtica, Milan; Savović, Jelena; Kuzmanović, M.; Ranković, D.; Stašić, Jelena

(2024)

TY  - JOUR
AU  - Trtica, Milan
AU  - Savović, Jelena
AU  - Kuzmanović, M.
AU  - Ranković, D.
AU  - Stašić, Jelena
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12052
AB  - The aspect of the detection of hydrogen isotopes in nuclear materials was analyzed in this review. Particular attention was paid to the spectroscopic methods for the detection of hydrogen isotopes in fusion reactor materials since their presence can induce severe problems in terms of material degradation and shortening of its lifetime. The main focus is on laser-induced breakdown spectroscopy, an optical emission method that is efficient, reliable, and fast. Recent results obtained at the VINCA Institute will also be presented.
T2  - Journal of Applied Spectroscopy
T1  - LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology
VL  - 90
IS  - InPress
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12052
ER  - 
@article{
author = "Trtica, Milan and Savović, Jelena and Kuzmanović, M. and Ranković, D. and Stašić, Jelena",
year = "2024",
abstract = "The aspect of the detection of hydrogen isotopes in nuclear materials was analyzed in this review. Particular attention was paid to the spectroscopic methods for the detection of hydrogen isotopes in fusion reactor materials since their presence can induce severe problems in terms of material degradation and shortening of its lifetime. The main focus is on laser-induced breakdown spectroscopy, an optical emission method that is efficient, reliable, and fast. Recent results obtained at the VINCA Institute will also be presented.",
journal = "Journal of Applied Spectroscopy",
title = "LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology",
volume = "90",
number = "InPress",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12052"
}
Trtica, M., Savović, J., Kuzmanović, M., Ranković, D.,& Stašić, J.. (2024). LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology. in Journal of Applied Spectroscopy, 90(InPress).
https://hdl.handle.net/21.15107/rcub_vinar_12052
Trtica M, Savović J, Kuzmanović M, Ranković D, Stašić J. LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology. in Journal of Applied Spectroscopy. 2024;90(InPress).
https://hdl.handle.net/21.15107/rcub_vinar_12052 .
Trtica, Milan, Savović, Jelena, Kuzmanović, M., Ranković, D., Stašić, Jelena, "LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology" in Journal of Applied Spectroscopy, 90, no. InPress (2024),
https://hdl.handle.net/21.15107/rcub_vinar_12052 .

Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications

Piotrowski, Wojciech M.; Szymczak, Maja; Rodríguez, Emma Martín; Marin, Riccardo; Henklewska, Marta; Poźniak, Błażej; Dramićanin, Miroslav; Marciniak, Lukasz

(2024)

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Szymczak, Maja
AU  - Rodríguez, Emma Martín
AU  - Marin, Riccardo
AU  - Henklewska, Marta
AU  - Poźniak, Błażej
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11929
AB  - The increasing popularity of luminescent nanothermometry in recent years can be attributed to its application potential in biomedicine. In response to this need, we describe a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes based on particles of MgTiO3:Cr3+,Nd3+@SiO2. The introduction of Cr3+ and Nd3+ dopants enabled the luminescence of Ti3+ ions to be observed, and the difference in the thermal quenching rates of Cr3+ (4T2→4A2), Ti3+ (2T2→2E) and Nd3+ (4F3/2 → 4I11/2) ions enabled the ratiometric thermometers. The highest sensitivity reaching SR = 1.00%K−1 was obtained for MgTiO3:0.1 % Cr3+, 0.1 % Nd3+ at 203 K. The shortening of the lifetime of the 4T2 level of Cr3+ ions associated with its thermal depopulation allows to develop a lifetime-based thermometer with a relative sensitivity reaching 0.85–1.18%K−1 in the physiological temperature range. The deposition of a SiO2 shell on a MgTiO3:Cr3+,Nd3+ did not introduce significant changes in the shape of the emission spectrum and slightly elongates the lifetime by reducing the probability of surface-related nonradiative processes. More importantly, the thermometric performance of this luminescence thermometer was preserved. The low cytotoxicity of the obtained materials underlines their potential in bioapplications of the described luminescent thermometers.
T2  - Materials Chemistry and Physics
T1  - Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications
VL  - 312
SP  - 128623
DO  - 10.1016/j.matchemphys.2023.128623
ER  - 
@article{
author = "Piotrowski, Wojciech M. and Szymczak, Maja and Rodríguez, Emma Martín and Marin, Riccardo and Henklewska, Marta and Poźniak, Błażej and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2024",
abstract = "The increasing popularity of luminescent nanothermometry in recent years can be attributed to its application potential in biomedicine. In response to this need, we describe a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes based on particles of MgTiO3:Cr3+,Nd3+@SiO2. The introduction of Cr3+ and Nd3+ dopants enabled the luminescence of Ti3+ ions to be observed, and the difference in the thermal quenching rates of Cr3+ (4T2→4A2), Ti3+ (2T2→2E) and Nd3+ (4F3/2 → 4I11/2) ions enabled the ratiometric thermometers. The highest sensitivity reaching SR = 1.00%K−1 was obtained for MgTiO3:0.1 % Cr3+, 0.1 % Nd3+ at 203 K. The shortening of the lifetime of the 4T2 level of Cr3+ ions associated with its thermal depopulation allows to develop a lifetime-based thermometer with a relative sensitivity reaching 0.85–1.18%K−1 in the physiological temperature range. The deposition of a SiO2 shell on a MgTiO3:Cr3+,Nd3+ did not introduce significant changes in the shape of the emission spectrum and slightly elongates the lifetime by reducing the probability of surface-related nonradiative processes. More importantly, the thermometric performance of this luminescence thermometer was preserved. The low cytotoxicity of the obtained materials underlines their potential in bioapplications of the described luminescent thermometers.",
journal = "Materials Chemistry and Physics",
title = "Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications",
volume = "312",
pages = "128623",
doi = "10.1016/j.matchemphys.2023.128623"
}
Piotrowski, W. M., Szymczak, M., Rodríguez, E. M., Marin, R., Henklewska, M., Poźniak, B., Dramićanin, M.,& Marciniak, L.. (2024). Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications. in Materials Chemistry and Physics, 312, 128623.
https://doi.org/10.1016/j.matchemphys.2023.128623
Piotrowski WM, Szymczak M, Rodríguez EM, Marin R, Henklewska M, Poźniak B, Dramićanin M, Marciniak L. Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications. in Materials Chemistry and Physics. 2024;312:128623.
doi:10.1016/j.matchemphys.2023.128623 .
Piotrowski, Wojciech M., Szymczak, Maja, Rodríguez, Emma Martín, Marin, Riccardo, Henklewska, Marta, Poźniak, Błażej, Dramićanin, Miroslav, Marciniak, Lukasz, "Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications" in Materials Chemistry and Physics, 312 (2024):128623,
https://doi.org/10.1016/j.matchemphys.2023.128623 . .

Irradiated fig pomace pyrochar as a promising and sustainable sterilized sorbent for water pollutant removal

Katnić, Đurica B.; Porobić, Slavica; Vujčić, Ivica; Kojić, Marija; Lazarević-Pašti, Tamara; Milanković, Vedran; Marinović-Cincović, Milena; Živojinović, Dragana Z.

(2024)

TY  - JOUR
AU  - Katnić, Đurica B.
AU  - Porobić, Slavica
AU  - Vujčić, Ivica
AU  - Kojić, Marija
AU  - Lazarević-Pašti, Tamara
AU  - Milanković, Vedran
AU  - Marinović-Cincović, Milena
AU  - Živojinović, Dragana Z.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11863
AB  - Irradiated fig pomace pyrochar (IrrPyrFP) is noteworthy as a novel sterilized low-cost sorbent of BTEX, pesticides, and Pb2+ ions. It was produced by applying pyrolysis treatment followed by gamma irradiation modification in order to obtain a highly efficient and sterile sorbent. The characterization of fig pomace before and after pyrolysis, as well as before and after irradiation of the obtained pyrochar, was done using SEM, FTIR, and elemental analysis, while its sorption ability was tested through the removal of examined pollutants by batch sorption experiments. The obtained results suggest that IrrPyrFP could play a significant role in the control of environmental pollutants, as indicated by the maximum adsorption capacities: 42 mg g−1 for BTEX, 0.625 mg g−1 for malathion, 0.495 mg g−1 for chlorpyrifos and 255 mg g−1 for Pb2+. A kinetic study showed that the removal process by IrrPyrFP mainly follows pseudo 2nd kinetics order, while the sorption equilibriums were estimated using the Langmuir and Freundlich model. Overall, the findings of this work suggest that pyrolysis and activation by irradiation of waste biomass is a promising way to produce sterile efficient sorbents for waste-water treatment based on green chemistry. Additionally, the demonstrated application of fig pomace promotes the potential of using this biomass for continual and economical waste management in the rising fig industry.
T2  - Radiation Physics and Chemistry
T1  - Irradiated fig pomace pyrochar as a promising and sustainable sterilized sorbent for water pollutant removal
VL  - 214
SP  - 111277
DO  - 10.1016/j.radphyschem.2023.111277
ER  - 
@article{
author = "Katnić, Đurica B. and Porobić, Slavica and Vujčić, Ivica and Kojić, Marija and Lazarević-Pašti, Tamara and Milanković, Vedran and Marinović-Cincović, Milena and Živojinović, Dragana Z.",
year = "2024",
abstract = "Irradiated fig pomace pyrochar (IrrPyrFP) is noteworthy as a novel sterilized low-cost sorbent of BTEX, pesticides, and Pb2+ ions. It was produced by applying pyrolysis treatment followed by gamma irradiation modification in order to obtain a highly efficient and sterile sorbent. The characterization of fig pomace before and after pyrolysis, as well as before and after irradiation of the obtained pyrochar, was done using SEM, FTIR, and elemental analysis, while its sorption ability was tested through the removal of examined pollutants by batch sorption experiments. The obtained results suggest that IrrPyrFP could play a significant role in the control of environmental pollutants, as indicated by the maximum adsorption capacities: 42 mg g−1 for BTEX, 0.625 mg g−1 for malathion, 0.495 mg g−1 for chlorpyrifos and 255 mg g−1 for Pb2+. A kinetic study showed that the removal process by IrrPyrFP mainly follows pseudo 2nd kinetics order, while the sorption equilibriums were estimated using the Langmuir and Freundlich model. Overall, the findings of this work suggest that pyrolysis and activation by irradiation of waste biomass is a promising way to produce sterile efficient sorbents for waste-water treatment based on green chemistry. Additionally, the demonstrated application of fig pomace promotes the potential of using this biomass for continual and economical waste management in the rising fig industry.",
journal = "Radiation Physics and Chemistry",
title = "Irradiated fig pomace pyrochar as a promising and sustainable sterilized sorbent for water pollutant removal",
volume = "214",
pages = "111277",
doi = "10.1016/j.radphyschem.2023.111277"
}
Katnić, Đ. B., Porobić, S., Vujčić, I., Kojić, M., Lazarević-Pašti, T., Milanković, V., Marinović-Cincović, M.,& Živojinović, D. Z.. (2024). Irradiated fig pomace pyrochar as a promising and sustainable sterilized sorbent for water pollutant removal. in Radiation Physics and Chemistry, 214, 111277.
https://doi.org/10.1016/j.radphyschem.2023.111277
Katnić ĐB, Porobić S, Vujčić I, Kojić M, Lazarević-Pašti T, Milanković V, Marinović-Cincović M, Živojinović DZ. Irradiated fig pomace pyrochar as a promising and sustainable sterilized sorbent for water pollutant removal. in Radiation Physics and Chemistry. 2024;214:111277.
doi:10.1016/j.radphyschem.2023.111277 .
Katnić, Đurica B., Porobić, Slavica, Vujčić, Ivica, Kojić, Marija, Lazarević-Pašti, Tamara, Milanković, Vedran, Marinović-Cincović, Milena, Živojinović, Dragana Z., "Irradiated fig pomace pyrochar as a promising and sustainable sterilized sorbent for water pollutant removal" in Radiation Physics and Chemistry, 214 (2024):111277,
https://doi.org/10.1016/j.radphyschem.2023.111277 . .
1

Tuning phase and photoluminescent properties of ZrO2:Eu3+ coatings formed by plasma electrolytic oxidation and Judd-Ofelt analysis of composite materials

Ćirić, Aleksandar; Stojadinović, Stevan

(2024)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11828
AB  - Eu3+ doped Zirconia coatings were synthesized by the electrochemical plasma electrolytic oxidation method in only 8 min from the pure zirconium substrate. The phase constitution from pure monoclinic to pure tetragonal and exactly in between was achieved by using different concentrations of Na3PO4 and NaAlO2 electrolytes. The complex emission spectra composed of Eu2+, Eu3+, and ZrO2 defect emission greatly depend on the excitation wavelength and phase constitution. Eu3+ photoluminescence properties depend on the phase, which is reflected by the different Stark splitting and different intensities of transitions. Thus, both phase and photoluminescent properties of ZrO2 coatings are fine-tuneable. Judd-Ofelt analysis was performed from the emission and excitation spectra, showing that all 3 intensity parameters depend linearly on the phase constitution, being largest in the pure monoclinic phase. The mixed phase has Judd-Ofelt parameters between those in pure phases. Eu3+ has 2.45 times more preference to get incorporated into the tetragonal than in the monoclinic phase in the mixed phase samples. The general equation for Judd-Ofelt parameters in a compound with mixed constituents and probability of incorporation is introduced, allowing also for a prediction of the spectrum shape based on the Judd-Ofelt parameters of pure-phase compounds. Python software code for estimating the percent of incorporation by multiple linear regression model is also provided.
T2  - Journal of Luminescence
T1  - Tuning phase and photoluminescent properties of ZrO2:Eu3+ coatings formed by plasma electrolytic oxidation and Judd-Ofelt analysis of composite materials
VL  - 266
SP  - 120268
DO  - 10.1016/j.jlumin.2023.120268
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan",
year = "2024",
abstract = "Eu3+ doped Zirconia coatings were synthesized by the electrochemical plasma electrolytic oxidation method in only 8 min from the pure zirconium substrate. The phase constitution from pure monoclinic to pure tetragonal and exactly in between was achieved by using different concentrations of Na3PO4 and NaAlO2 electrolytes. The complex emission spectra composed of Eu2+, Eu3+, and ZrO2 defect emission greatly depend on the excitation wavelength and phase constitution. Eu3+ photoluminescence properties depend on the phase, which is reflected by the different Stark splitting and different intensities of transitions. Thus, both phase and photoluminescent properties of ZrO2 coatings are fine-tuneable. Judd-Ofelt analysis was performed from the emission and excitation spectra, showing that all 3 intensity parameters depend linearly on the phase constitution, being largest in the pure monoclinic phase. The mixed phase has Judd-Ofelt parameters between those in pure phases. Eu3+ has 2.45 times more preference to get incorporated into the tetragonal than in the monoclinic phase in the mixed phase samples. The general equation for Judd-Ofelt parameters in a compound with mixed constituents and probability of incorporation is introduced, allowing also for a prediction of the spectrum shape based on the Judd-Ofelt parameters of pure-phase compounds. Python software code for estimating the percent of incorporation by multiple linear regression model is also provided.",
journal = "Journal of Luminescence",
title = "Tuning phase and photoluminescent properties of ZrO2:Eu3+ coatings formed by plasma electrolytic oxidation and Judd-Ofelt analysis of composite materials",
volume = "266",
pages = "120268",
doi = "10.1016/j.jlumin.2023.120268"
}
Ćirić, A.,& Stojadinović, S.. (2024). Tuning phase and photoluminescent properties of ZrO2:Eu3+ coatings formed by plasma electrolytic oxidation and Judd-Ofelt analysis of composite materials. in Journal of Luminescence, 266, 120268.
https://doi.org/10.1016/j.jlumin.2023.120268
Ćirić A, Stojadinović S. Tuning phase and photoluminescent properties of ZrO2:Eu3+ coatings formed by plasma electrolytic oxidation and Judd-Ofelt analysis of composite materials. in Journal of Luminescence. 2024;266:120268.
doi:10.1016/j.jlumin.2023.120268 .
Ćirić, Aleksandar, Stojadinović, Stevan, "Tuning phase and photoluminescent properties of ZrO2:Eu3+ coatings formed by plasma electrolytic oxidation and Judd-Ofelt analysis of composite materials" in Journal of Luminescence, 266 (2024):120268,
https://doi.org/10.1016/j.jlumin.2023.120268 . .

First-principles calculations of the electronic structure and mechanical properties of non-doped and Cr3+-Doped K2LiAlF6 under pressure

Umar, Zafari; Kurboniyon, Mekhrdod S.; Khyzhun, Oleg; Yamamoto, Tomoyuki; Ma, Chong-Geng; Brik, Mikhail G.; Piasecki, Michal

(2024)

TY  - JOUR
AU  - Umar, Zafari
AU  - Kurboniyon, Mekhrdod S.
AU  - Khyzhun, Oleg
AU  - Yamamoto, Tomoyuki
AU  - Ma, Chong-Geng
AU  - Brik, Mikhail G.
AU  - Piasecki, Michal
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11826
AB  - We report on the results of the first principles calculations based on density functional theory (DFT) of the electronic structure and mechanical properties of K2LiAlF6, both non-doped and doped with Cr3+ ions. The densities of states of K2LiAlF6 and the K2LiAlF6:Cr3+ phosphor as well as the crystal-field strength 10Dq, the Cr3+ 2E→4A2 emission energy, elastic constants, bulk and shear moduli, sound velocities and Debye temperature as functions of hydrostatic pressure ranging from 0 up to 40 GPa were calculated. The present DFT calculations indicate that, the band gap of non-doped K2LiAlF6 increases quadratically with increasing pressure. Further, the crystal field strength 10Dq and the 2E→4A2 emission energy, the Debye temperature, sound velocities and shear moduli of Cr-doped K2LiAlF6 increase with increasing pressure, while the 2E→4A2 emission energy becomes red-shifted, which indicates potential applicability of the studied system for pressure sensing. Such calculations for the title system were performed for the first time; the obtained results provide a firm basis for a deeper understanding of physical properties of both neat and doped functional materials.
T2  - Journal of Luminescence
T1  - First-principles calculations of the electronic structure and mechanical properties of non-doped and Cr3+-Doped K2LiAlF6 under pressure
VL  - 266
SP  - 120278
DO  - 10.1016/j.jlumin.2023.120278
ER  - 
@article{
author = "Umar, Zafari and Kurboniyon, Mekhrdod S. and Khyzhun, Oleg and Yamamoto, Tomoyuki and Ma, Chong-Geng and Brik, Mikhail G. and Piasecki, Michal",
year = "2024",
abstract = "We report on the results of the first principles calculations based on density functional theory (DFT) of the electronic structure and mechanical properties of K2LiAlF6, both non-doped and doped with Cr3+ ions. The densities of states of K2LiAlF6 and the K2LiAlF6:Cr3+ phosphor as well as the crystal-field strength 10Dq, the Cr3+ 2E→4A2 emission energy, elastic constants, bulk and shear moduli, sound velocities and Debye temperature as functions of hydrostatic pressure ranging from 0 up to 40 GPa were calculated. The present DFT calculations indicate that, the band gap of non-doped K2LiAlF6 increases quadratically with increasing pressure. Further, the crystal field strength 10Dq and the 2E→4A2 emission energy, the Debye temperature, sound velocities and shear moduli of Cr-doped K2LiAlF6 increase with increasing pressure, while the 2E→4A2 emission energy becomes red-shifted, which indicates potential applicability of the studied system for pressure sensing. Such calculations for the title system were performed for the first time; the obtained results provide a firm basis for a deeper understanding of physical properties of both neat and doped functional materials.",
journal = "Journal of Luminescence",
title = "First-principles calculations of the electronic structure and mechanical properties of non-doped and Cr3+-Doped K2LiAlF6 under pressure",
volume = "266",
pages = "120278",
doi = "10.1016/j.jlumin.2023.120278"
}
Umar, Z., Kurboniyon, M. S., Khyzhun, O., Yamamoto, T., Ma, C., Brik, M. G.,& Piasecki, M.. (2024). First-principles calculations of the electronic structure and mechanical properties of non-doped and Cr3+-Doped K2LiAlF6 under pressure. in Journal of Luminescence, 266, 120278.
https://doi.org/10.1016/j.jlumin.2023.120278
Umar Z, Kurboniyon MS, Khyzhun O, Yamamoto T, Ma C, Brik MG, Piasecki M. First-principles calculations of the electronic structure and mechanical properties of non-doped and Cr3+-Doped K2LiAlF6 under pressure. in Journal of Luminescence. 2024;266:120278.
doi:10.1016/j.jlumin.2023.120278 .
Umar, Zafari, Kurboniyon, Mekhrdod S., Khyzhun, Oleg, Yamamoto, Tomoyuki, Ma, Chong-Geng, Brik, Mikhail G., Piasecki, Michal, "First-principles calculations of the electronic structure and mechanical properties of non-doped and Cr3+-Doped K2LiAlF6 under pressure" in Journal of Luminescence, 266 (2024):120278,
https://doi.org/10.1016/j.jlumin.2023.120278 . .

Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles

Alazreg, Asma; Vuksanović, Marija M.; Mladenović, Ivana O.; Egelja, Adela; Janković-Mandić, Ljiljana; Marinković, Aleksandar; Jančić-Heinemann, Radmila

(2024)

TY  - JOUR
AU  - Alazreg, Asma
AU  - Vuksanović, Marija M.
AU  - Mladenović, Ivana O.
AU  - Egelja, Adela
AU  - Janković-Mandić, Ljiljana
AU  - Marinković, Aleksandar
AU  - Jančić-Heinemann, Radmila
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11720
AB  - The MgAl-LDH@SiO2 particles are prepared by the coprecipitation of LDH on silica originating from plants.Particles are of submicron size and are well dispersed in the matrix. Composites consisting of PMMA reinforcedwith MgAl-LDH@SiO2 particles have improved hardness and resistance to viscoelastic deformation, as tested bymicrohardness measurements.
T2  - Materials Letters
T1  - Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles
VL  - 354
SP  - 135354
DO  - 10.1016/j.matlet.2023.135354
ER  - 
@article{
author = "Alazreg, Asma and Vuksanović, Marija M. and Mladenović, Ivana O. and Egelja, Adela and Janković-Mandić, Ljiljana and Marinković, Aleksandar and Jančić-Heinemann, Radmila",
year = "2024",
abstract = "The MgAl-LDH@SiO2 particles are prepared by the coprecipitation of LDH on silica originating from plants.Particles are of submicron size and are well dispersed in the matrix. Composites consisting of PMMA reinforcedwith MgAl-LDH@SiO2 particles have improved hardness and resistance to viscoelastic deformation, as tested bymicrohardness measurements.",
journal = "Materials Letters",
title = "Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles",
volume = "354",
pages = "135354",
doi = "10.1016/j.matlet.2023.135354"
}
Alazreg, A., Vuksanović, M. M., Mladenović, I. O., Egelja, A., Janković-Mandić, L., Marinković, A.,& Jančić-Heinemann, R.. (2024). Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles. in Materials Letters, 354, 135354.
https://doi.org/10.1016/j.matlet.2023.135354
Alazreg A, Vuksanović MM, Mladenović IO, Egelja A, Janković-Mandić L, Marinković A, Jančić-Heinemann R. Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles. in Materials Letters. 2024;354:135354.
doi:10.1016/j.matlet.2023.135354 .
Alazreg, Asma, Vuksanović, Marija M., Mladenović, Ivana O., Egelja, Adela, Janković-Mandić, Ljiljana, Marinković, Aleksandar, Jančić-Heinemann, Radmila, "Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles" in Materials Letters, 354 (2024):135354,
https://doi.org/10.1016/j.matlet.2023.135354 . .

Sixth-century Byzantine glass from Limes Fortifications on Serbian Danube

Balvanović, Roman; Šmit, Žiga; Stojanović, Milica Marić; Špehar, Perica; Milović, Olivera

(2023-11)

TY  - JOUR
AU  - Balvanović, Roman
AU  - Šmit, Žiga
AU  - Stojanović, Milica Marić
AU  - Špehar, Perica
AU  - Milović, Olivera
PY  - 2023-11
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11836
AB  - Thirty-two glasses from four Byzantine fortifications located on the Danube in Serbia, dated to the sixth-century CE, are analysed by PIXE/PIGE, and their compositional types are determined. Most of the glasses belong to Late Antique type Foy 2.1 (22), the rest being Foy 3.2 (3), HIMTa (1), Levantine (2), plant-ash (3), and coloured black (1). The diversity of compositional types and provenances characterizing the same area during the third to fourth century, changed in the sixth century into uniformity of glass types and provenance: more than two-thirds of all glass types represent only one type (Foy 2.1), and at least 87% of all imports came from a single region, Egypt. Apart from two glasses reported herein, no Levantine glasses are reported from Serbia, and almost none from the inner Balkans, which is in contrast with the rest of the Mediterranean excluding Egypt. The reasons for this might be the economic aftermath of earlier Hunnic raids or possible centralization of raw glass imports during the Justinian rebuilding program. Two plant ash glasses of mixed composition, showing characteristics of Egyptian plant-ash flux and Mesopotamian sand, likely represent recycled glass originating from these two regions.
T2  - Archaeological and Anthropological Sciences
T1  - Sixth-century Byzantine glass from Limes Fortifications on Serbian Danube
VL  - 15
IS  - 11
DO  - 10.1007/s12520-023-01872-8
ER  - 
@article{
author = "Balvanović, Roman and Šmit, Žiga and Stojanović, Milica Marić and Špehar, Perica and Milović, Olivera",
year = "2023-11",
abstract = "Thirty-two glasses from four Byzantine fortifications located on the Danube in Serbia, dated to the sixth-century CE, are analysed by PIXE/PIGE, and their compositional types are determined. Most of the glasses belong to Late Antique type Foy 2.1 (22), the rest being Foy 3.2 (3), HIMTa (1), Levantine (2), plant-ash (3), and coloured black (1). The diversity of compositional types and provenances characterizing the same area during the third to fourth century, changed in the sixth century into uniformity of glass types and provenance: more than two-thirds of all glass types represent only one type (Foy 2.1), and at least 87% of all imports came from a single region, Egypt. Apart from two glasses reported herein, no Levantine glasses are reported from Serbia, and almost none from the inner Balkans, which is in contrast with the rest of the Mediterranean excluding Egypt. The reasons for this might be the economic aftermath of earlier Hunnic raids or possible centralization of raw glass imports during the Justinian rebuilding program. Two plant ash glasses of mixed composition, showing characteristics of Egyptian plant-ash flux and Mesopotamian sand, likely represent recycled glass originating from these two regions.",
journal = "Archaeological and Anthropological Sciences",
title = "Sixth-century Byzantine glass from Limes Fortifications on Serbian Danube",
volume = "15",
number = "11",
doi = "10.1007/s12520-023-01872-8"
}
Balvanović, R., Šmit, Ž., Stojanović, M. M., Špehar, P.,& Milović, O.. (2023-11). Sixth-century Byzantine glass from Limes Fortifications on Serbian Danube. in Archaeological and Anthropological Sciences, 15(11).
https://doi.org/10.1007/s12520-023-01872-8
Balvanović R, Šmit Ž, Stojanović MM, Špehar P, Milović O. Sixth-century Byzantine glass from Limes Fortifications on Serbian Danube. in Archaeological and Anthropological Sciences. 2023;15(11).
doi:10.1007/s12520-023-01872-8 .
Balvanović, Roman, Šmit, Žiga, Stojanović, Milica Marić, Špehar, Perica, Milović, Olivera, "Sixth-century Byzantine glass from Limes Fortifications on Serbian Danube" in Archaeological and Anthropological Sciences, 15, no. 11 (2023-11),
https://doi.org/10.1007/s12520-023-01872-8 . .

Influence of zirconium and copper sub-layer in cell integrations on femtosecond laser-processed Ti thin films

Božinović, Nevena; Savva, Kyriaki; Rajić, Vladimir; Popović, Maja; Tošić, Dragana; Janjetović, Kristina; Despotović, Ana; Zogović, Nevena; Stratakis, Emmanuel; Petrović, Suzana

(2023-10)

TY  - JOUR
AU  - Božinović, Nevena
AU  - Savva, Kyriaki
AU  - Rajić, Vladimir
AU  - Popović, Maja
AU  - Tošić, Dragana
AU  - Janjetović, Kristina
AU  - Despotović, Ana
AU  - Zogović, Nevena
AU  - Stratakis, Emmanuel
AU  - Petrović, Suzana
PY  - 2023-10
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11547
AB  - The creation of novel biocompatible Ti-based thin films with a Zr or Cu sub-layer modified by ultrafast laser processing is studied. To prepare bioactive surfaces, ultrafast laser processing is focused on the formation of laser-induced periodic surface structures (LIPSS) with the production of oxide phases at the surfaces. Two differently designed multilayer thin films Ti/Cu/Ti and Ti/Zr/Ti were deposited on the silicon using the ion sputtering method. The Ti thin film contains Cu or Zr sub-layer (thickness of 10 nm) at the 10 nm below the surface. The composition and surface morphology variations for these systems, deposited and laser-processed under the same experimental conditions, were caused only by different thermo-physical properties of the sub-layer (Cu or Zr). The surface morphology in the form of LIPSS, led to improved cell adhesion and stable cells/thin films interface compared to as-deposited samples. Field-emission scanning electron microscopy and MTT analysis revealed that laser processing of both systems increased cell adhesion, proliferation, and metabolical activity of L929 mouse fibroblast cells compared to non-modified flat surfaces. Overall, the biocompatibility of Zrcontaining thin films is better than Ti/Cu/Ti system. Further, laser processing and formation of LIPSS makes Ti/Zr/Ti thin films excellent candidate for biomedical
T2  - Materials Chemistry and Physics
T1  - Influence of zirconium and copper sub-layer in cell integrations on femtosecond laser-processed Ti thin films
VL  - 308
SP  - 128286
DO  - 10.1016/j.matchemphys.2023.128286
ER  - 
@article{
author = "Božinović, Nevena and Savva, Kyriaki and Rajić, Vladimir and Popović, Maja and Tošić, Dragana and Janjetović, Kristina and Despotović, Ana and Zogović, Nevena and Stratakis, Emmanuel and Petrović, Suzana",
year = "2023-10",
abstract = "The creation of novel biocompatible Ti-based thin films with a Zr or Cu sub-layer modified by ultrafast laser processing is studied. To prepare bioactive surfaces, ultrafast laser processing is focused on the formation of laser-induced periodic surface structures (LIPSS) with the production of oxide phases at the surfaces. Two differently designed multilayer thin films Ti/Cu/Ti and Ti/Zr/Ti were deposited on the silicon using the ion sputtering method. The Ti thin film contains Cu or Zr sub-layer (thickness of 10 nm) at the 10 nm below the surface. The composition and surface morphology variations for these systems, deposited and laser-processed under the same experimental conditions, were caused only by different thermo-physical properties of the sub-layer (Cu or Zr). The surface morphology in the form of LIPSS, led to improved cell adhesion and stable cells/thin films interface compared to as-deposited samples. Field-emission scanning electron microscopy and MTT analysis revealed that laser processing of both systems increased cell adhesion, proliferation, and metabolical activity of L929 mouse fibroblast cells compared to non-modified flat surfaces. Overall, the biocompatibility of Zrcontaining thin films is better than Ti/Cu/Ti system. Further, laser processing and formation of LIPSS makes Ti/Zr/Ti thin films excellent candidate for biomedical",
journal = "Materials Chemistry and Physics",
title = "Influence of zirconium and copper sub-layer in cell integrations on femtosecond laser-processed Ti thin films",
volume = "308",
pages = "128286",
doi = "10.1016/j.matchemphys.2023.128286"
}
Božinović, N., Savva, K., Rajić, V., Popović, M., Tošić, D., Janjetović, K., Despotović, A., Zogović, N., Stratakis, E.,& Petrović, S.. (2023-10). Influence of zirconium and copper sub-layer in cell integrations on femtosecond laser-processed Ti thin films. in Materials Chemistry and Physics, 308, 128286.
https://doi.org/10.1016/j.matchemphys.2023.128286
Božinović N, Savva K, Rajić V, Popović M, Tošić D, Janjetović K, Despotović A, Zogović N, Stratakis E, Petrović S. Influence of zirconium and copper sub-layer in cell integrations on femtosecond laser-processed Ti thin films. in Materials Chemistry and Physics. 2023;308:128286.
doi:10.1016/j.matchemphys.2023.128286 .
Božinović, Nevena, Savva, Kyriaki, Rajić, Vladimir, Popović, Maja, Tošić, Dragana, Janjetović, Kristina, Despotović, Ana, Zogović, Nevena, Stratakis, Emmanuel, Petrović, Suzana, "Influence of zirconium and copper sub-layer in cell integrations on femtosecond laser-processed Ti thin films" in Materials Chemistry and Physics, 308 (2023-10):128286,
https://doi.org/10.1016/j.matchemphys.2023.128286 . .

Antioksidativni i antiinflamatorni efekti suplementacije orasima (Juglans regia L.) na srce pacova sa metaboličkim sindromom izazvanim ishranom bogatom fruktozom

Bubić, Maja

(Универзитет у Београду, Биолошки факултет, 2023-02-01)

TY  - THES
AU  - Bubić, Maja
PY  - 2023-02-01
UR  - https://eteze.bg.ac.rs/application/showtheses?thesesId=9135
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:29732/bdef:Content/download
UR  - https://plus.cobiss.net/cobiss/sr/sr/bib/113470217
UR  - https://nardus.mpn.gov.rs/handle/123456789/21456
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11989
AB  - Povećana konzumacija fruktoze kroz industrijsku hranu doprinosi razvojumetaboličkog sindroma (MetS). MetS prati hronična inflamacija niskog intenziteta kojojdoprinosi oksidativni stres i aktivacija renin-angiotenzin sistema (RAS). Orasi su bogatizvor antioksidanasa i polinezasićenih n-3 masnih kiselina koje imajuantiinflamatorne/imunomodulatorne efekte na kardiometaboličko zdravlje, čijamolekularna osnova nije dovoljno poznata.Konzumacija oraha (2,4 g/dan, 6 nedelja) je smanjila sistolni krvni pritisak kodpacova na ishrani bogatoj fruktozom (10% rastvor, 15 nedelja), pokazala je protektivniefekat na antioksidativnu osu SIRT1-FoxO3a-MnSOD/katalaza i antiinflamatornikapacitet srca (smanjenje AA/EPA) i promovisala antiinflamatorni profil masnih kiselinau plazmi (smanjenje AA/EPA i AA/DHA), koji su kompromitovani fruktoznomishranom. Ulogu negativnih regulatora antioksidativne ose, Nox4 i ChREBP, u srcu trebadodatno ispitati jer je nivo Nox4 povećan i nakon fruktozne ishrane i nakonsuplementacije orasima, dok je nivo ChREBP u jedru smanjen nakon fruktozne ishrane inakon konzumacije oraha kod kontrolnih pacova. Fruktozna ishrana je aktivirala signalniput koji reguliše inflamaciju povećanjem nivoa transkripcionog faktora NF-κB i ključnogenzima RAS-a, АСЕ, dok je suplementacija orasima kod pacova na fruktoznoj ishranipovećala nivo ACE2, kardioprotektivne komponente RAS-a. Na proteinski/iRNK nivoRAS receptora, AT1R i AT2R, nije uticao nijedan od dva nutritivna faktora.Ova studija je potvrdila korisne efekte konzumacije oraha na kardiometaboličkistatus i predloţila mehanizme koji su u osnovi njihovih antiinflamatornih iantioksidativnih efekata u srcu, ukazujući na mogućnost razvoja novih, nefarmakološkihpristupa u terapiji kardiometaboličkih bolesti.
AB  - Increased fructose intake via industrial food is associated with metabolic syndrome(MetS). MetS is characterized by chronic low-intensity inflammation caused by oxidativestress and activation of the renin-angiotensin system (RAS). Walnuts are a rich source ofantioxidants and polyunsaturated n-3 fatty acids that exert anti-inflammatory/immunomodulatory effects on cardiometabolic health, which molecularbackground is underexplored.Walnut consumption (2.4 g/day, 6 weeks) reduced systolic blood pressure in ratsfed a fructose-rich diet (10% FRD, 15 weeks), showed a protective effect on theantioxidative axis SIRT1-FoxO3a-MnSOD/catalase and anti-inflammatory cardiac capacity(AA/EPA reduction) and promoted the anti-inflammatory profile of plasma fatty acids(AA/EPA and AA/DHA reduction), which were compromised by FRD. The role of theaxis negative regulators, Nox4 and ChREBP, should be further investigated in the heartbecause the Nox4 level was increased by both, FRD and walnut supplementation, whilethe ChREBP nuclear level was reduced in FRD as well as in control rats subjected towalnuts. FRD activated a signaling pathway that regulated inflammation by increasing thelevels of the transcription factor NF-κB and the key RAS enzyme, ACE, while walnutsupplementation in FRD rats increased ACE2 level, a cardioprotective component of theRAS. The protein/mRNA levels of the RAS receptors, AT1R and AT2R, were not affectedby either of the two nutritional factors.This study confirmed the beneficial effects of walnut consumption oncardiometabolic status and proposed the mechanisms underlying their anti-inflammatoryand antioxidative effects in the heart, indicating the possibility for development of novel,non-pharmacological approaches in cardiometabolic disease therapy.
PB  - Универзитет у Београду, Биолошки факултет
T2  - Универзитет у Београду
T1  - Antioksidativni i antiinflamatorni efekti suplementacije orasima (Juglans regia L.) na srce pacova sa metaboličkim sindromom izazvanim ishranom bogatom fruktozom
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11989
ER  - 
@phdthesis{
author = "Bubić, Maja",
year = "2023-02-01",
abstract = "Povećana konzumacija fruktoze kroz industrijsku hranu doprinosi razvojumetaboličkog sindroma (MetS). MetS prati hronična inflamacija niskog intenziteta kojojdoprinosi oksidativni stres i aktivacija renin-angiotenzin sistema (RAS). Orasi su bogatizvor antioksidanasa i polinezasićenih n-3 masnih kiselina koje imajuantiinflamatorne/imunomodulatorne efekte na kardiometaboličko zdravlje, čijamolekularna osnova nije dovoljno poznata.Konzumacija oraha (2,4 g/dan, 6 nedelja) je smanjila sistolni krvni pritisak kodpacova na ishrani bogatoj fruktozom (10% rastvor, 15 nedelja), pokazala je protektivniefekat na antioksidativnu osu SIRT1-FoxO3a-MnSOD/katalaza i antiinflamatornikapacitet srca (smanjenje AA/EPA) i promovisala antiinflamatorni profil masnih kiselinau plazmi (smanjenje AA/EPA i AA/DHA), koji su kompromitovani fruktoznomishranom. Ulogu negativnih regulatora antioksidativne ose, Nox4 i ChREBP, u srcu trebadodatno ispitati jer je nivo Nox4 povećan i nakon fruktozne ishrane i nakonsuplementacije orasima, dok je nivo ChREBP u jedru smanjen nakon fruktozne ishrane inakon konzumacije oraha kod kontrolnih pacova. Fruktozna ishrana je aktivirala signalniput koji reguliše inflamaciju povećanjem nivoa transkripcionog faktora NF-κB i ključnogenzima RAS-a, АСЕ, dok je suplementacija orasima kod pacova na fruktoznoj ishranipovećala nivo ACE2, kardioprotektivne komponente RAS-a. Na proteinski/iRNK nivoRAS receptora, AT1R i AT2R, nije uticao nijedan od dva nutritivna faktora.Ova studija je potvrdila korisne efekte konzumacije oraha na kardiometaboličkistatus i predloţila mehanizme koji su u osnovi njihovih antiinflamatornih iantioksidativnih efekata u srcu, ukazujući na mogućnost razvoja novih, nefarmakološkihpristupa u terapiji kardiometaboličkih bolesti., Increased fructose intake via industrial food is associated with metabolic syndrome(MetS). MetS is characterized by chronic low-intensity inflammation caused by oxidativestress and activation of the renin-angiotensin system (RAS). Walnuts are a rich source ofantioxidants and polyunsaturated n-3 fatty acids that exert anti-inflammatory/immunomodulatory effects on cardiometabolic health, which molecularbackground is underexplored.Walnut consumption (2.4 g/day, 6 weeks) reduced systolic blood pressure in ratsfed a fructose-rich diet (10% FRD, 15 weeks), showed a protective effect on theantioxidative axis SIRT1-FoxO3a-MnSOD/catalase and anti-inflammatory cardiac capacity(AA/EPA reduction) and promoted the anti-inflammatory profile of plasma fatty acids(AA/EPA and AA/DHA reduction), which were compromised by FRD. The role of theaxis negative regulators, Nox4 and ChREBP, should be further investigated in the heartbecause the Nox4 level was increased by both, FRD and walnut supplementation, whilethe ChREBP nuclear level was reduced in FRD as well as in control rats subjected towalnuts. FRD activated a signaling pathway that regulated inflammation by increasing thelevels of the transcription factor NF-κB and the key RAS enzyme, ACE, while walnutsupplementation in FRD rats increased ACE2 level, a cardioprotective component of theRAS. The protein/mRNA levels of the RAS receptors, AT1R and AT2R, were not affectedby either of the two nutritional factors.This study confirmed the beneficial effects of walnut consumption oncardiometabolic status and proposed the mechanisms underlying their anti-inflammatoryand antioxidative effects in the heart, indicating the possibility for development of novel,non-pharmacological approaches in cardiometabolic disease therapy.",
publisher = "Универзитет у Београду, Биолошки факултет",
journal = "Универзитет у Београду",
title = "Antioksidativni i antiinflamatorni efekti suplementacije orasima (Juglans regia L.) na srce pacova sa metaboličkim sindromom izazvanim ishranom bogatom fruktozom",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11989"
}
Bubić, M.. (2023-02-01). Antioksidativni i antiinflamatorni efekti suplementacije orasima (Juglans regia L.) na srce pacova sa metaboličkim sindromom izazvanim ishranom bogatom fruktozom. in Универзитет у Београду
Универзитет у Београду, Биолошки факултет..
https://hdl.handle.net/21.15107/rcub_vinar_11989
Bubić M. Antioksidativni i antiinflamatorni efekti suplementacije orasima (Juglans regia L.) na srce pacova sa metaboličkim sindromom izazvanim ishranom bogatom fruktozom. in Универзитет у Београду. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_11989 .
Bubić, Maja, "Antioksidativni i antiinflamatorni efekti suplementacije orasima (Juglans regia L.) na srce pacova sa metaboličkim sindromom izazvanim ishranom bogatom fruktozom" in Универзитет у Београду (2023-02-01),
https://hdl.handle.net/21.15107/rcub_vinar_11989 .

Influence of Aggregate Type on the Properties on SCC with Fly Ash

Janković, Ksenija; Stojanović, Marko; Bojović, Dragan; Terzić, Anja; Stanković, Srboljub; Jedrzejewska, Agnieszka; Kanavaris, Fragkoulis; Azenha, Miguel; Benboudjema, Farid; Schlicke, Dirk

(2023)

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Stanković, Srboljub
AU  - Jedrzejewska, Agnieszka
AU  - Kanavaris, Fragkoulis
AU  - Azenha, Miguel
AU  - Benboudjema, Farid
AU  - Schlicke, Dirk
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11172
AB  - This study compared the performance of self-compacting concrete (SCC) based on fly ash addition and limestone filler. A SCC prepared with Portland cement, river sand, and limestone filler was used as a reference sample. Additional experimental self-compacting concretes with different types of fine aggregates, fillers, and special additives for increasing freeze-thaw resistance were prepared and optimized. The correlation between mix design, i.e., percentage of barite sand and additives, and properties of fresh SCC (slump-flow test, V-funnel test, and L-box test), as well as properties of hardened SCC (compressive strengths), were investigated and discussed.
C3  - International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
T1  - Influence of Aggregate Type on the Properties on SCC with Fly Ash
SP  - 47
EP  - 54
DO  - 10.1007/978-3-031-33187-9_5
ER  - 
@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja and Stanković, Srboljub and Jedrzejewska, Agnieszka and Kanavaris, Fragkoulis and Azenha, Miguel and Benboudjema, Farid and Schlicke, Dirk",
year = "2023",
abstract = "This study compared the performance of self-compacting concrete (SCC) based on fly ash addition and limestone filler. A SCC prepared with Portland cement, river sand, and limestone filler was used as a reference sample. Additional experimental self-compacting concretes with different types of fine aggregates, fillers, and special additives for increasing freeze-thaw resistance were prepared and optimized. The correlation between mix design, i.e., percentage of barite sand and additives, and properties of fresh SCC (slump-flow test, V-funnel test, and L-box test), as well as properties of hardened SCC (compressive strengths), were investigated and discussed.",
journal = "International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures",
title = "Influence of Aggregate Type on the Properties on SCC with Fly Ash",
pages = "47-54",
doi = "10.1007/978-3-031-33187-9_5"
}
Janković, K., Stojanović, M., Bojović, D., Terzić, A., Stanković, S., Jedrzejewska, A., Kanavaris, F., Azenha, M., Benboudjema, F.,& Schlicke, D.. (2023). Influence of Aggregate Type on the Properties on SCC with Fly Ash. in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures, 47-54.
https://doi.org/10.1007/978-3-031-33187-9_5
Janković K, Stojanović M, Bojović D, Terzić A, Stanković S, Jedrzejewska A, Kanavaris F, Azenha M, Benboudjema F, Schlicke D. Influence of Aggregate Type on the Properties on SCC with Fly Ash. in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures. 2023;:47-54.
doi:10.1007/978-3-031-33187-9_5 .
Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, Stanković, Srboljub, Jedrzejewska, Agnieszka, Kanavaris, Fragkoulis, Azenha, Miguel, Benboudjema, Farid, Schlicke, Dirk, "Influence of Aggregate Type on the Properties on SCC with Fly Ash" in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures (2023):47-54,
https://doi.org/10.1007/978-3-031-33187-9_5 . .

Application of coal combustion byproducts in self-compacting concrete: influence on flowability

Janković, Ksenija; Stojanović, Marko; Bojović, Dragan; Terzić, Anja; Stanković, Srboljub

(University of Belgrade, Technical Faculty in Bor, 2023)

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11177
AB  - Compared to traditional concrete, self-compacting concrete (SCC) demonstrates greater flowability, which is achieved by including an extra high percentage of ultra-fine particles. As a result, the required high paste content is obtained while the cement content is strictly limited. The coal combustion byproduct (fly ash) is one of the most efficient SCC fillers because it extends the lifecycle of SCC by improving its microstructural properties, strength, and durability. In this study, the amounts of fly ash in SCC compositions varied. The changes in physical and mechanical characteristics of fresh SCC samples related to variations in the water/binder ratio were monitored
PB  - University of Belgrade, Technical Faculty in Bor
C3  - 15th International Mineral Processing and Recycling Conference, IMPRC, 17-19 May 2023, Belgrade, Serbia
T1  - Application of coal combustion byproducts in self-compacting concrete: influence on flowability
SP  - 594
EP  - 599
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11177
ER  - 
@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja and Stanković, Srboljub",
year = "2023",
abstract = "Compared to traditional concrete, self-compacting concrete (SCC) demonstrates greater flowability, which is achieved by including an extra high percentage of ultra-fine particles. As a result, the required high paste content is obtained while the cement content is strictly limited. The coal combustion byproduct (fly ash) is one of the most efficient SCC fillers because it extends the lifecycle of SCC by improving its microstructural properties, strength, and durability. In this study, the amounts of fly ash in SCC compositions varied. The changes in physical and mechanical characteristics of fresh SCC samples related to variations in the water/binder ratio were monitored",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "15th International Mineral Processing and Recycling Conference, IMPRC, 17-19 May 2023, Belgrade, Serbia",
title = "Application of coal combustion byproducts in self-compacting concrete: influence on flowability",
pages = "594-599",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11177"
}
Janković, K., Stojanović, M., Bojović, D., Terzić, A.,& Stanković, S.. (2023). Application of coal combustion byproducts in self-compacting concrete: influence on flowability. in 15th International Mineral Processing and Recycling Conference, IMPRC, 17-19 May 2023, Belgrade, Serbia
University of Belgrade, Technical Faculty in Bor., 594-599.
https://hdl.handle.net/21.15107/rcub_vinar_11177
Janković K, Stojanović M, Bojović D, Terzić A, Stanković S. Application of coal combustion byproducts in self-compacting concrete: influence on flowability. in 15th International Mineral Processing and Recycling Conference, IMPRC, 17-19 May 2023, Belgrade, Serbia. 2023;:594-599.
https://hdl.handle.net/21.15107/rcub_vinar_11177 .
Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, Stanković, Srboljub, "Application of coal combustion byproducts in self-compacting concrete: influence on flowability" in 15th International Mineral Processing and Recycling Conference, IMPRC, 17-19 May 2023, Belgrade, Serbia (2023):594-599,
https://hdl.handle.net/21.15107/rcub_vinar_11177 .

Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement

Janković, Ksenija; Stanković, Srboljub; Bojović, Dragan; Stojanović, Marko; Antić Aranđelović, Lana; Terzić, Anja

(Belgrade : Serbian Ceramic Society, 2023)

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Bojović, Dragan
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
AU  - Terzić, Anja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11650
AB  - The impacts of nano-silica addition, steel micro-reinforcement, and aggregate type on the mechanical properties and durability of ultra-high-performance concrete (UHPC) were studied. As aggregates, quartz and barite were used. The amounts of steel fibers and nanosilica were alternated. Six concrete mixes were produced with quartz sand, and the remaining six concrete mixes were designed with barite sand. Fibers made about 3-5% of the concrete composition’s mass. In a 2-5% concentration, nano-silica was used as a cement replacement. The inclusion of nano-silica significantly boosted the compressive strength of UHPC. The compressive and flexural strengths were also positively impacted by fiber supplementation ranging from 3% to 5%. The amount of fiber utilized proved to be more influential than the aggregate used. The UHPC concrete's durability was increased as all samples were highly resistant to freezing and thawing cycles. UHPC designed with barite aggregate demonstrated good X and gamma ray absorption at energies below 300 keV.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11650
ER  - 
@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Bojović, Dragan and Stojanović, Marko and Antić Aranđelović, Lana and Terzić, Anja",
year = "2023",
abstract = "The impacts of nano-silica addition, steel micro-reinforcement, and aggregate type on the mechanical properties and durability of ultra-high-performance concrete (UHPC) were studied. As aggregates, quartz and barite were used. The amounts of steel fibers and nanosilica were alternated. Six concrete mixes were produced with quartz sand, and the remaining six concrete mixes were designed with barite sand. Fibers made about 3-5% of the concrete composition’s mass. In a 2-5% concentration, nano-silica was used as a cement replacement. The inclusion of nano-silica significantly boosted the compressive strength of UHPC. The compressive and flexural strengths were also positively impacted by fiber supplementation ranging from 3% to 5%. The amount of fiber utilized proved to be more influential than the aggregate used. The UHPC concrete's durability was increased as all samples were highly resistant to freezing and thawing cycles. UHPC designed with barite aggregate demonstrated good X and gamma ray absorption at energies below 300 keV.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11650"
}
Janković, K., Stanković, S., Bojović, D., Stojanović, M., Antić Aranđelović, L.,& Terzić, A.. (2023). Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 83.
https://hdl.handle.net/21.15107/rcub_vinar_11650
Janković K, Stanković S, Bojović D, Stojanović M, Antić Aranđelović L, Terzić A. Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:83.
https://hdl.handle.net/21.15107/rcub_vinar_11650 .
Janković, Ksenija, Stanković, Srboljub, Bojović, Dragan, Stojanović, Marko, Antić Aranđelović, Lana, Terzić, Anja, "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):83,
https://hdl.handle.net/21.15107/rcub_vinar_11650 .

Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel

Janković, Ksenija; Stanković, Srboljub; Živanović, Miloš; Krajinović, Marko; Topalović, Dušan; Kojić, Andrea; Božović, Predrag

(Niš : Sievert Association, 2023)

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Živanović, Miloš
AU  - Krajinović, Marko
AU  - Topalović, Dušan
AU  - Kojić, Andrea
AU  - Božović, Predrag
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12065
AB  - During the implementation of procedures for designing building barriers for protection against gamma and X radiation, the unavoidable question of choosing construction materials with appropriate mechanical and radiation characteristics for protective barriers arises. Based on engineering practice, it is necessary to compare different types of concrete used for the construction of facilities where there are sources of gamma and X radiation, such as in cases where radiation sources appear in medical facilities with linear accelerators, cyclotron installations for accelerating nuclear particles, in the environment of nuclear reactors, in radioactive waste storages, or in radiation sterilization unit s. In the cost-benefit analysis, several criteria are used to evaluate the characteristics of the concrete, so that in addition to the mechanical characteristics, the radiation characteristics of the construction material are also considered. One of the most important characteristics of concrete for radiation protection is its total mass attenuation coefficient. In this paper, computer code XCOM was used for the calculation of the total mass attenuation coefficients in energy range from 0.01MeV to 100 MeV for three types of concrete: ordinary concrete, concrete with barite and concrete with limonite and steel. Based on the comparison of calculation results, it was concluded that concrete with limonite and steel has greater protective power than other two concrete types for the gamma and X radiation energy less than 30 keV. The second important conclusion is that the concrete with barite has greater protective power than other two concrete types in the range of photon energy from 30 keV to 300 keV, and for photon energy greater than 6 MeV. A detailed analysis of the calculation results found that in the energy range of 400 keV to 6 MeV values for the total mass attenuation coefficients are approximately the same for three different types of concrete.
PB  - Niš : Sievert Association
C3  - RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts
T1  - Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel
SP  - 64
EP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12065
ER  - 
@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Živanović, Miloš and Krajinović, Marko and Topalović, Dušan and Kojić, Andrea and Božović, Predrag",
year = "2023",
abstract = "During the implementation of procedures for designing building barriers for protection against gamma and X radiation, the unavoidable question of choosing construction materials with appropriate mechanical and radiation characteristics for protective barriers arises. Based on engineering practice, it is necessary to compare different types of concrete used for the construction of facilities where there are sources of gamma and X radiation, such as in cases where radiation sources appear in medical facilities with linear accelerators, cyclotron installations for accelerating nuclear particles, in the environment of nuclear reactors, in radioactive waste storages, or in radiation sterilization unit s. In the cost-benefit analysis, several criteria are used to evaluate the characteristics of the concrete, so that in addition to the mechanical characteristics, the radiation characteristics of the construction material are also considered. One of the most important characteristics of concrete for radiation protection is its total mass attenuation coefficient. In this paper, computer code XCOM was used for the calculation of the total mass attenuation coefficients in energy range from 0.01MeV to 100 MeV for three types of concrete: ordinary concrete, concrete with barite and concrete with limonite and steel. Based on the comparison of calculation results, it was concluded that concrete with limonite and steel has greater protective power than other two concrete types for the gamma and X radiation energy less than 30 keV. The second important conclusion is that the concrete with barite has greater protective power than other two concrete types in the range of photon energy from 30 keV to 300 keV, and for photon energy greater than 6 MeV. A detailed analysis of the calculation results found that in the energy range of 400 keV to 6 MeV values for the total mass attenuation coefficients are approximately the same for three different types of concrete.",
publisher = "Niš : Sievert Association",
journal = "RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts",
title = "Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel",
pages = "64-64",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12065"
}
Janković, K., Stanković, S., Živanović, M., Krajinović, M., Topalović, D., Kojić, A.,& Božović, P.. (2023). Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts
Niš : Sievert Association., 64-64.
https://hdl.handle.net/21.15107/rcub_vinar_12065
Janković K, Stanković S, Živanović M, Krajinović M, Topalović D, Kojić A, Božović P. Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts. 2023;:64-64.
https://hdl.handle.net/21.15107/rcub_vinar_12065 .
Janković, Ksenija, Stanković, Srboljub, Živanović, Miloš, Krajinović, Marko, Topalović, Dušan, Kojić, Andrea, Božović, Predrag, "Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel" in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts (2023):64-64,
https://hdl.handle.net/21.15107/rcub_vinar_12065 .

Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel

Janković, Ksenija; Stanković, Srboljub; Terzić, Anja; Bojović, Dragan; Stojanović, Marko

(Niš : RAD Centre, 2023)

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Terzić, Anja
AU  - Bojović, Dragan
AU  - Stojanović, Marko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12140
PB  - Niš : RAD Centre
C3  - RAD 2023 - 11th International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
T1  - Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel
SP  - 239
EP  - 239
DO  - 10.21175/rad.abstr.book.2023.36.19
ER  - 
@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Terzić, Anja and Bojović, Dragan and Stojanović, Marko",
year = "2023",
publisher = "Niš : RAD Centre",
journal = "RAD 2023 - 11th International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts",
title = "Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel",
pages = "239-239",
doi = "10.21175/rad.abstr.book.2023.36.19"
}
Janković, K., Stanković, S., Terzić, A., Bojović, D.,& Stojanović, M.. (2023). Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel. in RAD 2023 - 11th International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
Niš : RAD Centre., 239-239.
https://doi.org/10.21175/rad.abstr.book.2023.36.19
Janković K, Stanković S, Terzić A, Bojović D, Stojanović M. Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel. in RAD 2023 - 11th International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts. 2023;:239-239.
doi:10.21175/rad.abstr.book.2023.36.19 .
Janković, Ksenija, Stanković, Srboljub, Terzić, Anja, Bojović, Dragan, Stojanović, Marko, "Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel" in RAD 2023 - 11th International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts (2023):239-239,
https://doi.org/10.21175/rad.abstr.book.2023.36.19 . .

Evaluation of a new procedure for stability checks of well-type brachytherapy chambers

Komatina, Ivana; Živanović, Miloš; Kržanović, Nikola; Đaletić, Miloš; Stanković, Srboljub

(Niš : Sievert Association, 2023)

TY  - CONF
AU  - Komatina, Ivana
AU  - Živanović, Miloš
AU  - Kržanović, Nikola
AU  - Đaletić, Miloš
AU  - Stanković, Srboljub
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11911
AB  - Well-type ionization chambers are routinely used for measurements in brachytherapy departments. Since there is no calibration service for brachytherapy ionization chambers available in Serbia, Secondary Standards Dosimetry Laboratory (SSDL) in Vinca Institute of Nuclear Sciences started establishing this service, using a reference well-type chamber Standard Imaging HDR-1000 plus with a PTW Unidos Webline electrometer. The outer wall of the chamber is made of 20 mm thick aluminum, which reduces the influence of the scattered radiation. For each source there is a unique source holder for placement in a reproducible geometry inside the well of the chamber. The ionization chamber stability has to be checked periodically to ensure reliable measurements. IAEA Technical Report Series (TRS) 1274 [IAEA TRS 1247, IAEA 2002] gives guidelines on standardized procedures at SSDLs and hospitals, including the procedure for stability checks of welltype chambers. According to this procedure, 137Cs or 60Co check sources are inserted in the chamber well, using spacers or holders to achieve reproducible geometry. Measurements during stability checks should remain within ±0.5%. In this research, a different procedure for stability checks was tested. A teletherapy 60Co irradiator was used for external irradiation of the well-type chamber. All measurements were corrected for air density (ambient temperature and pressure). Measurements were done in a minimum scatter environment, which was achieved by positioning the ionization chamber 1 m from the irradiator, with the field size of 20x20cm. Correction for 60Co half-life was applied to all measurements. First, the influence of the source holders was tested, and no significant differences were found (0.16% maximum difference when holder is placed in chamber, compared to no holder present). All the subsequent measurements were performed without source holders. During the second test, 4 stability checks were performed during a period of 4 days without moving the chamber or irradiator. The deviations were within the interval -0.39% – +0.25% compared to the first stability check measurement. During the third test, 7 stability checks were performed during a period of 7 days, and complete setup was repeated during each check (chamber positioning, bench positioning, collimator setup etc.). The purpose of the second test was to check the repeatability of positioning, because the positioning can artificially increase deviations between subsequent measurements, making the chamber stability appear worse. All the results were within the interval -0.17% – +0.27%. The results show that this procedure can be adequate for the stability checks of well-type chambers, because the repeatability due to the changes in measurement procedures setup is better than the 0.5%. Differences between second and third test could be caused by insufficient thermalization of the chamber during the second test.
PB  - Niš : Sievert Association
C3  - RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts
T1  - Evaluation of a new procedure for stability checks of well-type brachytherapy chambers
SP  - 120
EP  - 120
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11911
ER  - 
@conference{
author = "Komatina, Ivana and Živanović, Miloš and Kržanović, Nikola and Đaletić, Miloš and Stanković, Srboljub",
year = "2023",
abstract = "Well-type ionization chambers are routinely used for measurements in brachytherapy departments. Since there is no calibration service for brachytherapy ionization chambers available in Serbia, Secondary Standards Dosimetry Laboratory (SSDL) in Vinca Institute of Nuclear Sciences started establishing this service, using a reference well-type chamber Standard Imaging HDR-1000 plus with a PTW Unidos Webline electrometer. The outer wall of the chamber is made of 20 mm thick aluminum, which reduces the influence of the scattered radiation. For each source there is a unique source holder for placement in a reproducible geometry inside the well of the chamber. The ionization chamber stability has to be checked periodically to ensure reliable measurements. IAEA Technical Report Series (TRS) 1274 [IAEA TRS 1247, IAEA 2002] gives guidelines on standardized procedures at SSDLs and hospitals, including the procedure for stability checks of welltype chambers. According to this procedure, 137Cs or 60Co check sources are inserted in the chamber well, using spacers or holders to achieve reproducible geometry. Measurements during stability checks should remain within ±0.5%. In this research, a different procedure for stability checks was tested. A teletherapy 60Co irradiator was used for external irradiation of the well-type chamber. All measurements were corrected for air density (ambient temperature and pressure). Measurements were done in a minimum scatter environment, which was achieved by positioning the ionization chamber 1 m from the irradiator, with the field size of 20x20cm. Correction for 60Co half-life was applied to all measurements. First, the influence of the source holders was tested, and no significant differences were found (0.16% maximum difference when holder is placed in chamber, compared to no holder present). All the subsequent measurements were performed without source holders. During the second test, 4 stability checks were performed during a period of 4 days without moving the chamber or irradiator. The deviations were within the interval -0.39% – +0.25% compared to the first stability check measurement. During the third test, 7 stability checks were performed during a period of 7 days, and complete setup was repeated during each check (chamber positioning, bench positioning, collimator setup etc.). The purpose of the second test was to check the repeatability of positioning, because the positioning can artificially increase deviations between subsequent measurements, making the chamber stability appear worse. All the results were within the interval -0.17% – +0.27%. The results show that this procedure can be adequate for the stability checks of well-type chambers, because the repeatability due to the changes in measurement procedures setup is better than the 0.5%. Differences between second and third test could be caused by insufficient thermalization of the chamber during the second test.",
publisher = "Niš : Sievert Association",
journal = "RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts",
title = "Evaluation of a new procedure for stability checks of well-type brachytherapy chambers",
pages = "120-120",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11911"
}
Komatina, I., Živanović, M., Kržanović, N., Đaletić, M.,& Stanković, S.. (2023). Evaluation of a new procedure for stability checks of well-type brachytherapy chambers. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts
Niš : Sievert Association., 120-120.
https://hdl.handle.net/21.15107/rcub_vinar_11911
Komatina I, Živanović M, Kržanović N, Đaletić M, Stanković S. Evaluation of a new procedure for stability checks of well-type brachytherapy chambers. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts. 2023;:120-120.
https://hdl.handle.net/21.15107/rcub_vinar_11911 .
Komatina, Ivana, Živanović, Miloš, Kržanović, Nikola, Đaletić, Miloš, Stanković, Srboljub, "Evaluation of a new procedure for stability checks of well-type brachytherapy chambers" in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts (2023):120-120,
https://hdl.handle.net/21.15107/rcub_vinar_11911 .

Uspostavljanje etalonskog polja za male vrednosti jačine doznog ekvivalenta

Živanović, Miloš; Komatina, Ivana; Kržanović, Nikola; Đaletić, Miloš; Stanković, Srboljub

(Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе, 2023)

TY  - CONF
AU  - Živanović, Miloš
AU  - Komatina, Ivana
AU  - Kržanović, Nikola
AU  - Đaletić, Miloš
AU  - Stanković, Srboljub
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11924
AB  - U ovom radu je prikazano korišćenje scintilacionog detektora za etaloniranje polja izvora gama zračenja male aktivnosti, za primenu u etaloniranju fotonskih dozimetara. Sledivost je obezbeđena tako što je scintilacioni detektor etaloniran koristeći jonizacionu komoru i izvor veće aktivnosti za nekoliko vrednosti jačine kerme, što je omogućilo da se odredi i njegova linearnost. Identifikovani su najvažniji doprinosi mernoj nesigurnosti etaloniranja polja, a kombinovana merna nesigurnost iznosi 4,6% (k = 2). Mala merna nesigurnost je od posebnog značaja za overavanje dozimetara
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Uspostavljanje etalonskog polja za male vrednosti jačine doznog ekvivalenta
SP  - 362
EP  - 367
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11924
ER  - 
@conference{
author = "Živanović, Miloš and Komatina, Ivana and Kržanović, Nikola and Đaletić, Miloš and Stanković, Srboljub",
year = "2023",
abstract = "U ovom radu je prikazano korišćenje scintilacionog detektora za etaloniranje polja izvora gama zračenja male aktivnosti, za primenu u etaloniranju fotonskih dozimetara. Sledivost je obezbeđena tako što je scintilacioni detektor etaloniran koristeći jonizacionu komoru i izvor veće aktivnosti za nekoliko vrednosti jačine kerme, što je omogućilo da se odredi i njegova linearnost. Identifikovani su najvažniji doprinosi mernoj nesigurnosti etaloniranja polja, a kombinovana merna nesigurnost iznosi 4,6% (k = 2). Mala merna nesigurnost je od posebnog značaja za overavanje dozimetara",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Uspostavljanje etalonskog polja za male vrednosti jačine doznog ekvivalenta",
pages = "362-367",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11924"
}
Živanović, M., Komatina, I., Kržanović, N., Đaletić, M.,& Stanković, S.. (2023). Uspostavljanje etalonskog polja za male vrednosti jačine doznog ekvivalenta. in 32. simpozijum DZZSCG : zbornik radova
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 362-367.
https://hdl.handle.net/21.15107/rcub_vinar_11924
Živanović M, Komatina I, Kržanović N, Đaletić M, Stanković S. Uspostavljanje etalonskog polja za male vrednosti jačine doznog ekvivalenta. in 32. simpozijum DZZSCG : zbornik radova. 2023;:362-367.
https://hdl.handle.net/21.15107/rcub_vinar_11924 .
Živanović, Miloš, Komatina, Ivana, Kržanović, Nikola, Đaletić, Miloš, Stanković, Srboljub, "Uspostavljanje etalonskog polja za male vrednosti jačine doznog ekvivalenta" in 32. simpozijum DZZSCG : zbornik radova (2023):362-367,
https://hdl.handle.net/21.15107/rcub_vinar_11924 .

Provera radioterapijskih ustanova Srbije od 2019. do 2022. godine poštanskom dozimetrijom u veličini apsorbovana doza u vodi

Kržanović, Nikola; Živanović, Miloš; Đaletić, Miloš; Komatina, Ivana; Kojić, Andrea; Stanković, Srboljub

(Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе, 2023)

TY  - CONF
AU  - Kržanović, Nikola
AU  - Živanović, Miloš
AU  - Đaletić, Miloš
AU  - Komatina, Ivana
AU  - Kojić, Andrea
AU  - Stanković, Srboljub
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11926
AB  - U svrhu osiguranja kvaliteta sprovođenja radioterapijskih procedura, radioterapijski centri širom sveta učestvuju u programu poštanske dozimetrije koju organizuje i sprovodi Međunarodna agencija za atomsku energiju putem globalne mreže Sekundarnih Standardnih Dozimetrijskih Laboratorija. Kontrola kvaliteta podrazumeva ozračivanje pasivnih detektora zračenja (prethodno termoluminiscentnih, danas radiofotoluminiscentnih dozimetara) na poznatu vrednost apsorbovane doze u vodi u visokoenergetskim poljima x-zračenja linearnih akceleratora koji su upotrebi u redovnoj teleterapijskoj praksi. Laboratorija za zaštitu od zračenja i zaštitu životne sredine je u periodu od 2019. do 2022. godine distribuirala pasivne dozimetre radioterapijskim centrima u Srbiji.
AB  - In order to perform quality assurance of radiotherapy procedures, radiotherapy centers participate in a worldwide programme of postal dosimetry external audits, organized by the International Atomic Energy Agency via the global Secondary Standard Dosimetry Laboratory network. Quality control is performed by delivering a known absorbed dose to water value to the passive ionizing radiation detectors (previously thermoluminiscent, recently radiophotoluminiscent dosimeters) in the high-energy x-radiation fields of linear accelerators which are in regular hospital use in teletherapy. Laboratory for radiation and environmental protection has distributed the passive dosimeters to the radiotherapy centers in Serbia in the period from 2019. to 2022.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Provera radioterapijskih ustanova Srbije od 2019. do 2022. godine poštanskom dozimetrijom u veličini apsorbovana doza u vodi
T1  - Postal dosimetry audit of radiotherapy centers in Serbia for the period from 2019. to 2022. in terms of absorbed dose to water
SP  - 376
EP  - 381
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11926
ER  - 
@conference{
author = "Kržanović, Nikola and Živanović, Miloš and Đaletić, Miloš and Komatina, Ivana and Kojić, Andrea and Stanković, Srboljub",
year = "2023",
abstract = "U svrhu osiguranja kvaliteta sprovođenja radioterapijskih procedura, radioterapijski centri širom sveta učestvuju u programu poštanske dozimetrije koju organizuje i sprovodi Međunarodna agencija za atomsku energiju putem globalne mreže Sekundarnih Standardnih Dozimetrijskih Laboratorija. Kontrola kvaliteta podrazumeva ozračivanje pasivnih detektora zračenja (prethodno termoluminiscentnih, danas radiofotoluminiscentnih dozimetara) na poznatu vrednost apsorbovane doze u vodi u visokoenergetskim poljima x-zračenja linearnih akceleratora koji su upotrebi u redovnoj teleterapijskoj praksi. Laboratorija za zaštitu od zračenja i zaštitu životne sredine je u periodu od 2019. do 2022. godine distribuirala pasivne dozimetre radioterapijskim centrima u Srbiji., In order to perform quality assurance of radiotherapy procedures, radiotherapy centers participate in a worldwide programme of postal dosimetry external audits, organized by the International Atomic Energy Agency via the global Secondary Standard Dosimetry Laboratory network. Quality control is performed by delivering a known absorbed dose to water value to the passive ionizing radiation detectors (previously thermoluminiscent, recently radiophotoluminiscent dosimeters) in the high-energy x-radiation fields of linear accelerators which are in regular hospital use in teletherapy. Laboratory for radiation and environmental protection has distributed the passive dosimeters to the radiotherapy centers in Serbia in the period from 2019. to 2022.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Provera radioterapijskih ustanova Srbije od 2019. do 2022. godine poštanskom dozimetrijom u veličini apsorbovana doza u vodi, Postal dosimetry audit of radiotherapy centers in Serbia for the period from 2019. to 2022. in terms of absorbed dose to water",
pages = "376-381",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11926"
}
Kržanović, N., Živanović, M., Đaletić, M., Komatina, I., Kojić, A.,& Stanković, S.. (2023). Provera radioterapijskih ustanova Srbije od 2019. do 2022. godine poštanskom dozimetrijom u veličini apsorbovana doza u vodi. in 32. simpozijum DZZSCG : zbornik radova
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 376-381.
https://hdl.handle.net/21.15107/rcub_vinar_11926
Kržanović N, Živanović M, Đaletić M, Komatina I, Kojić A, Stanković S. Provera radioterapijskih ustanova Srbije od 2019. do 2022. godine poštanskom dozimetrijom u veličini apsorbovana doza u vodi. in 32. simpozijum DZZSCG : zbornik radova. 2023;:376-381.
https://hdl.handle.net/21.15107/rcub_vinar_11926 .
Kržanović, Nikola, Živanović, Miloš, Đaletić, Miloš, Komatina, Ivana, Kojić, Andrea, Stanković, Srboljub, "Provera radioterapijskih ustanova Srbije od 2019. do 2022. godine poštanskom dozimetrijom u veličini apsorbovana doza u vodi" in 32. simpozijum DZZSCG : zbornik radova (2023):376-381,
https://hdl.handle.net/21.15107/rcub_vinar_11926 .

Effects in Commercial p-Channel Power VDMOS Transistors Initiated by Negative Bias Temperature Stress and Irradiation

Veljković, Sandra; Mitrović, Nikola; Đorić-Veljković, Snežana; Davidović, Vojkan; Živanović, E.; Stanković, Srboljub; Anđelković, M.; Ristić, G.; Paskleva, A.; Spassov, D.; Danković, Danijel

(IEEE : Institute of Electrical and Electronics Engineers, 2023)

TY  - CONF
AU  - Veljković, Sandra
AU  - Mitrović, Nikola
AU  - Đorić-Veljković, Snežana
AU  - Davidović, Vojkan
AU  - Živanović, E.
AU  - Stanković, Srboljub
AU  - Anđelković, M.
AU  - Ristić, G.
AU  - Paskleva, A.
AU  - Spassov, D.
AU  - Danković, Danijel
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12120
AB  - This paper investigates the impact of negative bias temperature stress on irradiated commercial p-channel power VDMOS transistors, particularly focusing on gate oxide charge and interface trap alterations and their contribution to threshold voltage shifts. The study addresses the critical issue of transistor reliability, as threshold voltage shifts can significantly affect device performance, especially in elevated temperature and negative gate oxide field conditions. Additionally, the research explores the effects of irradiation on VDMOS power transistors, emphasizing the importance of understanding the associated electrical parameter changes. The paper presents a comprehensive analysis of static and pulsed NBT stressing, with a specific focus on novel stress signals encountered in practical applications. The experimental procedure involves irradiation and NBT stress, and the results reveal insights into the contributions of gate oxide charge and interface traps to threshold voltage shifts. The findings shed light on the reliability of electronic equipment incorporating p-channel power VDMOS transistors under various stress conditions, offering valuable insights for device design and operation.
PB  - IEEE : Institute of Electrical and Electronics Engineers
C3  - MIEL : 33nd International Conference on Microelectronics : Proceedings book
T1  - Effects in Commercial p-Channel Power VDMOS Transistors Initiated by Negative Bias Temperature Stress and Irradiation
SP  - 277
EP  - 280
DO  - 10.1109/MIEL58498.2023.10315932
ER  - 
@conference{
author = "Veljković, Sandra and Mitrović, Nikola and Đorić-Veljković, Snežana and Davidović, Vojkan and Živanović, E. and Stanković, Srboljub and Anđelković, M. and Ristić, G. and Paskleva, A. and Spassov, D. and Danković, Danijel",
year = "2023",
abstract = "This paper investigates the impact of negative bias temperature stress on irradiated commercial p-channel power VDMOS transistors, particularly focusing on gate oxide charge and interface trap alterations and their contribution to threshold voltage shifts. The study addresses the critical issue of transistor reliability, as threshold voltage shifts can significantly affect device performance, especially in elevated temperature and negative gate oxide field conditions. Additionally, the research explores the effects of irradiation on VDMOS power transistors, emphasizing the importance of understanding the associated electrical parameter changes. The paper presents a comprehensive analysis of static and pulsed NBT stressing, with a specific focus on novel stress signals encountered in practical applications. The experimental procedure involves irradiation and NBT stress, and the results reveal insights into the contributions of gate oxide charge and interface traps to threshold voltage shifts. The findings shed light on the reliability of electronic equipment incorporating p-channel power VDMOS transistors under various stress conditions, offering valuable insights for device design and operation.",
publisher = "IEEE : Institute of Electrical and Electronics Engineers",
journal = "MIEL : 33nd International Conference on Microelectronics : Proceedings book",
title = "Effects in Commercial p-Channel Power VDMOS Transistors Initiated by Negative Bias Temperature Stress and Irradiation",
pages = "277-280",
doi = "10.1109/MIEL58498.2023.10315932"
}
Veljković, S., Mitrović, N., Đorić-Veljković, S., Davidović, V., Živanović, E., Stanković, S., Anđelković, M., Ristić, G., Paskleva, A., Spassov, D.,& Danković, D.. (2023). Effects in Commercial p-Channel Power VDMOS Transistors Initiated by Negative Bias Temperature Stress and Irradiation. in MIEL : 33nd International Conference on Microelectronics : Proceedings book
IEEE : Institute of Electrical and Electronics Engineers., 277-280.
https://doi.org/10.1109/MIEL58498.2023.10315932
Veljković S, Mitrović N, Đorić-Veljković S, Davidović V, Živanović E, Stanković S, Anđelković M, Ristić G, Paskleva A, Spassov D, Danković D. Effects in Commercial p-Channel Power VDMOS Transistors Initiated by Negative Bias Temperature Stress and Irradiation. in MIEL : 33nd International Conference on Microelectronics : Proceedings book. 2023;:277-280.
doi:10.1109/MIEL58498.2023.10315932 .
Veljković, Sandra, Mitrović, Nikola, Đorić-Veljković, Snežana, Davidović, Vojkan, Živanović, E., Stanković, Srboljub, Anđelković, M., Ristić, G., Paskleva, A., Spassov, D., Danković, Danijel, "Effects in Commercial p-Channel Power VDMOS Transistors Initiated by Negative Bias Temperature Stress and Irradiation" in MIEL : 33nd International Conference on Microelectronics : Proceedings book (2023):277-280,
https://doi.org/10.1109/MIEL58498.2023.10315932 . .

An improved RADFET-based module with an extended dose range of 1 kGy TID based on COTS parts

Vasović, Nikola; Duane, Russell; Ristić, Goran; Stanković, Srboljub

(Niš : Faculty of Electronic Engineering, 2023)

TY  - CONF
AU  - Vasović, Nikola
AU  - Duane, Russell
AU  - Ristić, Goran
AU  - Stanković, Srboljub
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12122
AB  - An improved RADFET based module dosemeter has been developed by Varadis (a spin out company of Tyndall National Institute in Cork, Ireland) with serial number RM-VT01-A. The module is based on commercially available, commercial-off-the-shelf (COTS) parts and represents an updated version of its predecessor RM-VT01 with an upper dose limit of 10Gy (1 kRad) also based on COTS parts. The RM-VT01-A module was tested to a total dose of 1kGy (100 kRad) in Co60 field at Vinča Institute of Nuclear Sciences, Belgrade, Serbia. The improved module circuit was specifically designed to address the challenge of withstanding 1 kGy (100 kRad) received dose. The primary goal of this poster is to present the improvements in the circuit design and working principle. For this purpose, eleven modules were tested, 8 powered and 3 unpowered during irradiation. The module electronics accommodates both irradiation “sense” and readout “single-current-point” mode, outputting the RADFET threshold voltage (VT) as a dosimetric information, directly proportional to the absorbed dose. The output voltage of the module was measured with a simple benchtop voltmeter to demonstrate module operation simplicity and easy system integrability. The experimental data results showed excellent agreement with the dosimetry system used at the Vinca irradiation facility, and calibration data of the VT01 RadFET part.
PB  - Niš : Faculty of Electronic Engineering
C3  - ELICSIR Project Symposium : Book of abstracts
T1  - An improved RADFET-based module with an extended dose range of 1 kGy TID based on COTS parts
SP  - 49
EP  - 49
ER  - 
@conference{
author = "Vasović, Nikola and Duane, Russell and Ristić, Goran and Stanković, Srboljub",
year = "2023",
abstract = "An improved RADFET based module dosemeter has been developed by Varadis (a spin out company of Tyndall National Institute in Cork, Ireland) with serial number RM-VT01-A. The module is based on commercially available, commercial-off-the-shelf (COTS) parts and represents an updated version of its predecessor RM-VT01 with an upper dose limit of 10Gy (1 kRad) also based on COTS parts. The RM-VT01-A module was tested to a total dose of 1kGy (100 kRad) in Co60 field at Vinča Institute of Nuclear Sciences, Belgrade, Serbia. The improved module circuit was specifically designed to address the challenge of withstanding 1 kGy (100 kRad) received dose. The primary goal of this poster is to present the improvements in the circuit design and working principle. For this purpose, eleven modules were tested, 8 powered and 3 unpowered during irradiation. The module electronics accommodates both irradiation “sense” and readout “single-current-point” mode, outputting the RADFET threshold voltage (VT) as a dosimetric information, directly proportional to the absorbed dose. The output voltage of the module was measured with a simple benchtop voltmeter to demonstrate module operation simplicity and easy system integrability. The experimental data results showed excellent agreement with the dosimetry system used at the Vinca irradiation facility, and calibration data of the VT01 RadFET part.",
publisher = "Niš : Faculty of Electronic Engineering",
journal = "ELICSIR Project Symposium : Book of abstracts",
title = "An improved RADFET-based module with an extended dose range of 1 kGy TID based on COTS parts",
pages = "49-49"
}
Vasović, N., Duane, R., Ristić, G.,& Stanković, S.. (2023). An improved RADFET-based module with an extended dose range of 1 kGy TID based on COTS parts. in ELICSIR Project Symposium : Book of abstracts
Niš : Faculty of Electronic Engineering., 49-49.
Vasović N, Duane R, Ristić G, Stanković S. An improved RADFET-based module with an extended dose range of 1 kGy TID based on COTS parts. in ELICSIR Project Symposium : Book of abstracts. 2023;:49-49..
Vasović, Nikola, Duane, Russell, Ristić, Goran, Stanković, Srboljub, "An improved RADFET-based module with an extended dose range of 1 kGy TID based on COTS parts" in ELICSIR Project Symposium : Book of abstracts (2023):49-49.

The effect of honey on malondialdehyde level in plasma exposed to a therapeutic dose of radiation

Stanić, Vojislav; Gavrilović, Ljubica; Stojiljković, Vesna; Karakašević, Aleksandar; Pantelić, Marija; Gerić, Tamara; Stanković, Srboljub

(Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", 2023)

TY  - CONF
AU  - Stanić, Vojislav
AU  - Gavrilović, Ljubica
AU  - Stojiljković, Vesna
AU  - Karakašević, Aleksandar
AU  - Pantelić, Marija
AU  - Gerić, Tamara
AU  - Stanković, Srboljub
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12124
AB  - Malondialdehyde (MDA) is the end product of lipid peroxidation and biomarker of free radicals. The aim of this study is to investigate the effect of honey on concentrations of MDA in plasma exposed to a therapeutic dose of radiation. In this experiment animals were divided into two groups: in CONTROL group the animals were given distilled water orally for 28 days, and HONEY group consisted of animals given 1,5 ml/kg honey orally for 28 days. Blood samples of both groups were collected from a rat's tail. All blood samples were exposed to radiation of 2 Gy. Malondialdehyde concentration in plasma was determined using spectrophotometric method. Honey treatment in the blood plasma exposed to a therapeutic dose of 2 Gy significantly decreased MDA level by 30 % compared with control group. The present results indicated that honey had an effect on the levels of MDA in plasma exposed to radiation.
AB  - Malondialdehid (MDA) je krajnji proizvod peroksidacije lipida i biomarker slobodnih radikala. Cilj ovog istraživanja je bio da se ispita uticaj meda na koncentraciju MDA u krvnoj plazmi izloženoj terapijskoj dozi zračenja. U ovom eksperimentu životinje su podeljene u dve grupe: u kontrolnoj grupi životinje su dobijale destilovanu vodu oralno tokom 28 dana, a drugu grupu činile su životinje koje su tokom 28 dana dobijale oralno 1.5 ml/kg meda. Uzorci krvi obe grupe su sakupljeni iz repa pacova. Svi uzorci krvi bili su izloženi zračenju od 2 Gy. Koncentracija MDA u plazmi određena je spektrofotometrijskom metodom. Tretman medom u krvnoj plazmi izložen terapijskoj dozi od 2 Gy značajno je smanjio nivo MDA (30 %) u poređenju sa kontrolnom grupom.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - The effect of honey on malondialdehyde level in plasma exposed to a therapeutic dose of radiation
T1  - Delovanje meda na nivo malondialdehida u plazmi izloženoj terapijskoj dozi zračenja
SP  - 417
EP  - 423
ER  - 
@conference{
author = "Stanić, Vojislav and Gavrilović, Ljubica and Stojiljković, Vesna and Karakašević, Aleksandar and Pantelić, Marija and Gerić, Tamara and Stanković, Srboljub",
year = "2023",
abstract = "Malondialdehyde (MDA) is the end product of lipid peroxidation and biomarker of free radicals. The aim of this study is to investigate the effect of honey on concentrations of MDA in plasma exposed to a therapeutic dose of radiation. In this experiment animals were divided into two groups: in CONTROL group the animals were given distilled water orally for 28 days, and HONEY group consisted of animals given 1,5 ml/kg honey orally for 28 days. Blood samples of both groups were collected from a rat's tail. All blood samples were exposed to radiation of 2 Gy. Malondialdehyde concentration in plasma was determined using spectrophotometric method. Honey treatment in the blood plasma exposed to a therapeutic dose of 2 Gy significantly decreased MDA level by 30 % compared with control group. The present results indicated that honey had an effect on the levels of MDA in plasma exposed to radiation., Malondialdehid (MDA) je krajnji proizvod peroksidacije lipida i biomarker slobodnih radikala. Cilj ovog istraživanja je bio da se ispita uticaj meda na koncentraciju MDA u krvnoj plazmi izloženoj terapijskoj dozi zračenja. U ovom eksperimentu životinje su podeljene u dve grupe: u kontrolnoj grupi životinje su dobijale destilovanu vodu oralno tokom 28 dana, a drugu grupu činile su životinje koje su tokom 28 dana dobijale oralno 1.5 ml/kg meda. Uzorci krvi obe grupe su sakupljeni iz repa pacova. Svi uzorci krvi bili su izloženi zračenju od 2 Gy. Koncentracija MDA u plazmi određena je spektrofotometrijskom metodom. Tretman medom u krvnoj plazmi izložen terapijskoj dozi od 2 Gy značajno je smanjio nivo MDA (30 %) u poređenju sa kontrolnom grupom.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "The effect of honey on malondialdehyde level in plasma exposed to a therapeutic dose of radiation, Delovanje meda na nivo malondialdehida u plazmi izloženoj terapijskoj dozi zračenja",
pages = "417-423"
}
Stanić, V., Gavrilović, L., Stojiljković, V., Karakašević, A., Pantelić, M., Gerić, T.,& Stanković, S.. (2023). The effect of honey on malondialdehyde level in plasma exposed to a therapeutic dose of radiation. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 417-423.
Stanić V, Gavrilović L, Stojiljković V, Karakašević A, Pantelić M, Gerić T, Stanković S. The effect of honey on malondialdehyde level in plasma exposed to a therapeutic dose of radiation. in 32. simpozijum DZZSCG : zbornik radova. 2023;:417-423..
Stanić, Vojislav, Gavrilović, Ljubica, Stojiljković, Vesna, Karakašević, Aleksandar, Pantelić, Marija, Gerić, Tamara, Stanković, Srboljub, "The effect of honey on malondialdehyde level in plasma exposed to a therapeutic dose of radiation" in 32. simpozijum DZZSCG : zbornik radova (2023):417-423.

Measuring geopolymer set times under ionizing radiation - advances in instruments and procedures

Rubinjoni, Luka; Stanković, Srboljub; Janićijević, Aco

(Belgrade : ETRAN Society, 2023)

TY  - CONF
AU  - Rubinjoni, Luka
AU  - Stanković, Srboljub
AU  - Janićijević, Aco
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12141
AB  - Geopolymers are a class of alkali activated binders, and present a viable alternative to Portland cement. Utilization of geopolymers is a way to reduce greenhouse gas emissions and utilize secondary materials.Geopolymers are becoming a material of choice in radioactive waste conditioning, for grouting and encapsulation. Binder set times are a key parameter in determining the workability of grouts, mortars and concrete. While studying the effects of ionizing radiation on geopolymer set times, we were constrained by the configuration of the irradiation device and field, so we developed a modified Vicat apparatus, sample case/phantom, and temperature/humidity monitor. The modified procedure has allowed for a better temporal resolution of the measurements, with continuous monitoring of the experimental conditions. Fly-ash geopolymer set times under Co-60 gamma radiation are presented.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - IcETRAN 2023 : 10th Jubilee International Conference IcETRAN and 67th ETRAN Conference : program and book of abstracts
T1  - Measuring geopolymer set times under ionizing radiation - advances in instruments and procedures
SP  - 47
EP  - 47
ER  - 
@conference{
author = "Rubinjoni, Luka and Stanković, Srboljub and Janićijević, Aco",
year = "2023",
abstract = "Geopolymers are a class of alkali activated binders, and present a viable alternative to Portland cement. Utilization of geopolymers is a way to reduce greenhouse gas emissions and utilize secondary materials.Geopolymers are becoming a material of choice in radioactive waste conditioning, for grouting and encapsulation. Binder set times are a key parameter in determining the workability of grouts, mortars and concrete. While studying the effects of ionizing radiation on geopolymer set times, we were constrained by the configuration of the irradiation device and field, so we developed a modified Vicat apparatus, sample case/phantom, and temperature/humidity monitor. The modified procedure has allowed for a better temporal resolution of the measurements, with continuous monitoring of the experimental conditions. Fly-ash geopolymer set times under Co-60 gamma radiation are presented.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "IcETRAN 2023 : 10th Jubilee International Conference IcETRAN and 67th ETRAN Conference : program and book of abstracts",
title = "Measuring geopolymer set times under ionizing radiation - advances in instruments and procedures",
pages = "47-47"
}
Rubinjoni, L., Stanković, S.,& Janićijević, A.. (2023). Measuring geopolymer set times under ionizing radiation - advances in instruments and procedures. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN and 67th ETRAN Conference : program and book of abstracts
Belgrade : ETRAN Society., 47-47.
Rubinjoni L, Stanković S, Janićijević A. Measuring geopolymer set times under ionizing radiation - advances in instruments and procedures. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN and 67th ETRAN Conference : program and book of abstracts. 2023;:47-47..
Rubinjoni, Luka, Stanković, Srboljub, Janićijević, Aco, "Measuring geopolymer set times under ionizing radiation - advances in instruments and procedures" in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN and 67th ETRAN Conference : program and book of abstracts (2023):47-47.

Measurement of the σ x BR(H→ZZ*) at 350 GeV and 3 TeV center-of-mass energies CLIC

Milutinović-Dumbelović, Gordana; Božović-Jelisavčić, Ivanka; Vukašinović, Nataša; Kačarević, Goran; Radulović, M.; Stevanović, J.

(2023)

TY  - CONF
AU  - Milutinović-Dumbelović, Gordana
AU  - Božović-Jelisavčić, Ivanka
AU  - Vukašinović, Nataša
AU  - Kačarević, Goran
AU  - Radulović, M.
AU  - Stevanović, J.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11931
AB  - In this paper we present results of the determination of the statistical precision of the branching fraction measurement, for Higgs decaying to 𝑍 𝑍∗ pairs at 3 TeV and 350 GeV CLIC. Measurements are simulated with the CLIC_ILD detector model, taking into consideration all relevant physics and beam-induced background processes. It is shown that the product of the branching fraction 𝐵𝑅(𝐻 → 𝑍 𝑍∗ ) and the Higgs production cross-section can be measured with a relative statistical uncertainty of 3% (20%) at 3 TeV (350 GeV) center-of-mass energy, using semileptonic final states and assuming an integrated luminosity of 5 (1) ab−1 .
C3  - Proceedings of Science
T1  - Measurement of the σ x BR(H→ZZ*) at 350 GeV and 3 TeV center-of-mass energies CLIC
VL  - 427
SP  - 193246
DO  - 10.22323/1.427.0097
ER  - 
@conference{
author = "Milutinović-Dumbelović, Gordana and Božović-Jelisavčić, Ivanka and Vukašinović, Nataša and Kačarević, Goran and Radulović, M. and Stevanović, J.",
year = "2023",
abstract = "In this paper we present results of the determination of the statistical precision of the branching fraction measurement, for Higgs decaying to 𝑍 𝑍∗ pairs at 3 TeV and 350 GeV CLIC. Measurements are simulated with the CLIC_ILD detector model, taking into consideration all relevant physics and beam-induced background processes. It is shown that the product of the branching fraction 𝐵𝑅(𝐻 → 𝑍 𝑍∗ ) and the Higgs production cross-section can be measured with a relative statistical uncertainty of 3% (20%) at 3 TeV (350 GeV) center-of-mass energy, using semileptonic final states and assuming an integrated luminosity of 5 (1) ab−1 .",
journal = "Proceedings of Science",
title = "Measurement of the σ x BR(H→ZZ*) at 350 GeV and 3 TeV center-of-mass energies CLIC",
volume = "427",
pages = "193246",
doi = "10.22323/1.427.0097"
}
Milutinović-Dumbelović, G., Božović-Jelisavčić, I., Vukašinović, N., Kačarević, G., Radulović, M.,& Stevanović, J.. (2023). Measurement of the σ x BR(H→ZZ*) at 350 GeV and 3 TeV center-of-mass energies CLIC. in Proceedings of Science, 427, 193246.
https://doi.org/10.22323/1.427.0097
Milutinović-Dumbelović G, Božović-Jelisavčić I, Vukašinović N, Kačarević G, Radulović M, Stevanović J. Measurement of the σ x BR(H→ZZ*) at 350 GeV and 3 TeV center-of-mass energies CLIC. in Proceedings of Science. 2023;427:193246.
doi:10.22323/1.427.0097 .
Milutinović-Dumbelović, Gordana, Božović-Jelisavčić, Ivanka, Vukašinović, Nataša, Kačarević, Goran, Radulović, M., Stevanović, J., "Measurement of the σ x BR(H→ZZ*) at 350 GeV and 3 TeV center-of-mass energies CLIC" in Proceedings of Science, 427 (2023):193246,
https://doi.org/10.22323/1.427.0097 . .

Systematic uncertainties in integrated luminosity measurement at CEPC

Smiljanić, Ivan; Božović-Jelisavčić, Ivanka; Kačarević, Goran; Vukašinović, Nataša; Vidaković, Ivana; Reković, Vladimir

(2023)

TY  - CONF
AU  - Smiljanić, Ivan
AU  - Božović-Jelisavčić, Ivanka
AU  - Kačarević, Goran
AU  - Vukašinović, Nataša
AU  - Vidaković, Ivana
AU  - Reković, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11932
AB  - The very forward region is one of the most challenging regions to instrument at a future e+e−  collider. Machine-detector interface at CEPC will include a calorimeter dedicated for precision measurement of the integrated luminosity at a permill level or better. We discuss a feasibility of such precision from the point of view of systematic effects arising from luminometer mechanical precision and positioning, beam-related requirements and physics background. Additionally, a method of the beam energy spread determination, initially proposed for FCC, is discussed for the CEPC beams, as well as the impact of beam energy spread uncertainty on integrated luminosity measurement and the precision of electroweak observables determination at the Z0  pole.
C3  - Proceedings of Science
T1  - Systematic uncertainties in integrated luminosity measurement at CEPC
VL  - 427
SP  - 193246
DO  - 10.22323/1.427.0086
ER  - 
@conference{
author = "Smiljanić, Ivan and Božović-Jelisavčić, Ivanka and Kačarević, Goran and Vukašinović, Nataša and Vidaković, Ivana and Reković, Vladimir",
year = "2023",
abstract = "The very forward region is one of the most challenging regions to instrument at a future e+e−  collider. Machine-detector interface at CEPC will include a calorimeter dedicated for precision measurement of the integrated luminosity at a permill level or better. We discuss a feasibility of such precision from the point of view of systematic effects arising from luminometer mechanical precision and positioning, beam-related requirements and physics background. Additionally, a method of the beam energy spread determination, initially proposed for FCC, is discussed for the CEPC beams, as well as the impact of beam energy spread uncertainty on integrated luminosity measurement and the precision of electroweak observables determination at the Z0  pole.",
journal = "Proceedings of Science",
title = "Systematic uncertainties in integrated luminosity measurement at CEPC",
volume = "427",
pages = "193246",
doi = "10.22323/1.427.0086"
}
Smiljanić, I., Božović-Jelisavčić, I., Kačarević, G., Vukašinović, N., Vidaković, I.,& Reković, V.. (2023). Systematic uncertainties in integrated luminosity measurement at CEPC. in Proceedings of Science, 427, 193246.
https://doi.org/10.22323/1.427.0086
Smiljanić I, Božović-Jelisavčić I, Kačarević G, Vukašinović N, Vidaković I, Reković V. Systematic uncertainties in integrated luminosity measurement at CEPC. in Proceedings of Science. 2023;427:193246.
doi:10.22323/1.427.0086 .
Smiljanić, Ivan, Božović-Jelisavčić, Ivanka, Kačarević, Goran, Vukašinović, Nataša, Vidaković, Ivana, Reković, Vladimir, "Systematic uncertainties in integrated luminosity measurement at CEPC" in Proceedings of Science, 427 (2023):193246,
https://doi.org/10.22323/1.427.0086 . .