All Publications

#### Building integrated photovoltaics - technology status

(2021)

TY  - JOUR
AU  - Stamenić, Ljubisav
AU  - Erban, Christof
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9702
AB  - Building integrated photovoltaics modules provide a high degree of design possibilities and additional functionalities in combination with the plain electricity generation well known for standard photovoltaic installations. Consequently, the specialized know-how to understand building integrated photovoltaics, properly design and manufacture them requires much more than the electrical knowledge developed and applied in standard photovoltaic systems. Expertise of building physics and building regulations are also required on a high level. As building integrated photovoltaics modules are usually custom designed, typical electrical design and simulationols cannot be used without modifications, while deeper insight of complex shading influences and specialized overall system design are advantageous. Authors of this publication were involved in well over 1000 building integrated photovoltaics system designs and developments, and their experiences are shared. Recurring questions, issues and mistakes of various building integrated photovoltaics projects are touched, whereas special emphasis is provided on building integrated photovoltaics engineering procedures, system design complexity, as well as shading issues and differentiation of shading according to their origin.
T2  - Thermal Science
T1  - Building integrated photovoltaics - technology status
VL  - 25
IS  - 2 [Part B]
SP  - 1523
EP  - 1543
DO  - 10.2298/TSCI200929342S
ER  - 
@article{
author = "Stamenić, Ljubisav and Erban, Christof",
year = "2021",
abstract = "Building integrated photovoltaics modules provide a high degree of design possibilities and additional functionalities in combination with the plain electricity generation well known for standard photovoltaic installations. Consequently, the specialized know-how to understand building integrated photovoltaics, properly design and manufacture them requires much more than the electrical knowledge developed and applied in standard photovoltaic systems. Expertise of building physics and building regulations are also required on a high level. As building integrated photovoltaics modules are usually custom designed, typical electrical design and simulationols cannot be used without modifications, while deeper insight of complex shading influences and specialized overall system design are advantageous. Authors of this publication were involved in well over 1000 building integrated photovoltaics system designs and developments, and their experiences are shared. Recurring questions, issues and mistakes of various building integrated photovoltaics projects are touched, whereas special emphasis is provided on building integrated photovoltaics engineering procedures, system design complexity, as well as shading issues and differentiation of shading according to their origin.",
journal = "Thermal Science",
title = "Building integrated photovoltaics - technology status",
volume = "25",
number = "2 [Part B]",
pages = "1523-1543",
doi = "10.2298/TSCI200929342S"
}
Stamenić, L.,& Erban, C.. (2021). Building integrated photovoltaics - technology status. in Thermal Science, 25(2 [Part B]), 1523-1543.
https://doi.org/10.2298/TSCI200929342S
Stamenić L, Erban C. Building integrated photovoltaics - technology status. in Thermal Science. 2021;25(2 [Part B]):1523-1543.
doi:10.2298/TSCI200929342S .
Stamenić, Ljubisav, Erban, Christof, "Building integrated photovoltaics - technology status" in Thermal Science, 25, no. 2 [Part B] (2021):1523-1543,
https://doi.org/10.2298/TSCI200929342S . .

#### Properties of Self-compacting Concrete Produced with Biomass Wood Ash

(2021)

TY  - JOUR
AU  - Grdić, Zoran
AU  - Topličić-Ćurčić, Gordana
AU  - Grdić, Dušan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9701
AB  - The demand of the contemporary society for renewable energy sources lead to the increase of the bio-power plants. Accordingly, the amount of ash generated by burning the biomass is increased, and its disposal becomes a large environmental problem. The paper presents the research of potential use of biomass wood ash as a partial replacement for coal fly ash (10%, 20%, 30% and 40% of mass) in production of self-compacting concrete (SCC). The effects of biomass wood ash on the properties of SCC in fresh and hardened states have been examined, as well as on the properties of durability. Test results indicated that the biomass wood ash slightly reduces the flowability and passing ability of SCC, while its addition enhances the viscosity of SCC and significantly prevents segregation and bleeding. SCCs with the contents of biomass wood ash up to 20% have approximately same mechanical strength as the reference mixture. Biomass wood ash has no negative effect on the resistance of concrete to the action of water under pressure, but a decrease of freeze/thaw resistance with de-icing salt is detected as its contents increases. The addition of biomass wood ash into SCC increases the drying shrinkage in the initial period of drying (up to 14 days), and it is decreased in a later phase. © 2021, Strojarski Facultet. All rights reserved.
T2  - Tehnicki vjesnik - Technical Gazette
T1  - Properties of Self-compacting Concrete Produced with Biomass Wood Ash
VL  - 28
IS  - 2
SP  - 495
EP  - 502
DO  - 10.17559/TV-20200214103332
ER  - 
@article{
author = "Ristić, Nenad and Grdić, Zoran and Topličić-Ćurčić, Gordana and Grdić, Dušan and Dodevski, Vladimir",
year = "2021",
abstract = "The demand of the contemporary society for renewable energy sources lead to the increase of the bio-power plants. Accordingly, the amount of ash generated by burning the biomass is increased, and its disposal becomes a large environmental problem. The paper presents the research of potential use of biomass wood ash as a partial replacement for coal fly ash (10%, 20%, 30% and 40% of mass) in production of self-compacting concrete (SCC). The effects of biomass wood ash on the properties of SCC in fresh and hardened states have been examined, as well as on the properties of durability. Test results indicated that the biomass wood ash slightly reduces the flowability and passing ability of SCC, while its addition enhances the viscosity of SCC and significantly prevents segregation and bleeding. SCCs with the contents of biomass wood ash up to 20% have approximately same mechanical strength as the reference mixture. Biomass wood ash has no negative effect on the resistance of concrete to the action of water under pressure, but a decrease of freeze/thaw resistance with de-icing salt is detected as its contents increases. The addition of biomass wood ash into SCC increases the drying shrinkage in the initial period of drying (up to 14 days), and it is decreased in a later phase. © 2021, Strojarski Facultet. All rights reserved.",
journal = "Tehnicki vjesnik - Technical Gazette",
title = "Properties of Self-compacting Concrete Produced with Biomass Wood Ash",
volume = "28",
number = "2",
pages = "495-502",
doi = "10.17559/TV-20200214103332"
}
Ristić, N., Grdić, Z., Topličić-Ćurčić, G., Grdić, D.,& Dodevski, V.. (2021). Properties of Self-compacting Concrete Produced with Biomass Wood Ash. in Tehnicki vjesnik - Technical Gazette, 28(2), 495-502.
https://doi.org/10.17559/TV-20200214103332
Ristić N, Grdić Z, Topličić-Ćurčić G, Grdić D, Dodevski V. Properties of Self-compacting Concrete Produced with Biomass Wood Ash. in Tehnicki vjesnik - Technical Gazette. 2021;28(2):495-502.
doi:10.17559/TV-20200214103332 .
Ristić, Nenad, Grdić, Zoran, Topličić-Ćurčić, Gordana, Grdić, Dušan, Dodevski, Vladimir, "Properties of Self-compacting Concrete Produced with Biomass Wood Ash" in Tehnicki vjesnik - Technical Gazette, 28, no. 2 (2021):495-502,
https://doi.org/10.17559/TV-20200214103332 . .

#### Self induced transparency pulses in transmon base quantum metamaterials

(IEEE, 2021)

TY  - CONF
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
AU  - Ivić, Zoran
AU  - Chizhov, Alexei
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9700
AB  - In this paper, we analyze the possible utilization of the short electromagnetic pulse for qubit state storage and for qubit manipulation. We analyze the properties of the electromagnetic pulse properties on characteristic preparation of the qubit register as well as on the pulse duration and determined the conditions under which it can be used as a medium for storing the qubit state, as well as for the qubit state manipulation. © 2021 IEEE.
PB  - IEEE
C3  - 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)
T1  - Self induced transparency pulses in transmon base quantum metamaterials
SP  - 9400673
DO  - 10.1109/INFOTEH51037.2021.9400673
ER  - 
@conference{
author = "Čevizović, Dalibor and Pržulj, Željko and Ivić, Zoran and Chizhov, Alexei",
year = "2021",
abstract = "In this paper, we analyze the possible utilization of the short electromagnetic pulse for qubit state storage and for qubit manipulation. We analyze the properties of the electromagnetic pulse properties on characteristic preparation of the qubit register as well as on the pulse duration and determined the conditions under which it can be used as a medium for storing the qubit state, as well as for the qubit state manipulation. © 2021 IEEE.",
publisher = "IEEE",
journal = "20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)",
title = "Self induced transparency pulses in transmon base quantum metamaterials",
pages = "9400673",
doi = "10.1109/INFOTEH51037.2021.9400673"
}
Čevizović, D., Pržulj, Ž., Ivić, Z.,& Chizhov, A.. (2021). Self induced transparency pulses in transmon base quantum metamaterials. in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)
IEEE., 9400673.
https://doi.org/10.1109/INFOTEH51037.2021.9400673
Čevizović D, Pržulj Ž, Ivić Z, Chizhov A. Self induced transparency pulses in transmon base quantum metamaterials. in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021). 2021;:9400673.
doi:10.1109/INFOTEH51037.2021.9400673 .
Čevizović, Dalibor, Pržulj, Željko, Ivić, Zoran, Chizhov, Alexei, "Self induced transparency pulses in transmon base quantum metamaterials" in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021) (2021):9400673,
https://doi.org/10.1109/INFOTEH51037.2021.9400673 . .

#### Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability

(2021)

TY  - JOUR
AU  - Bošković, Marko
AU  - Fabián, Martin
AU  - Vranješ-Đurić, Sanja
AU  - Antić, Bratislav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9699
AB  - A series of Fe3-xGdxO4 (x = 0, 0.1, 0.2) nanoparticles with an average diameter of around 8 nm were prepared by the coprecipitation method and coated by citric acid (CA). The nanoparticles show superparamagnetic behavior at room temperature and transition to a blocked state, at a temperature from ~ 89 K to ~ 213 K, depending on Gd concentration. The saturation magnetization of Fe3-xGdxO4 tended to drop for samples with a higher content of Gd. High colloidal stability is mandatory in medical applications of magnetic nanoparticles, and here we demonstrate a new procedure for its improvement. A colloidal sample of Fe3O4@CA was mechanically milled, after which dynamic light scattering and zeta potential measurements were used to monitor the hydrodynamic size and colloidal stability of the acquired suspensions. After 90 min of milling, the average hydrodynamic diameter decreased by 40%, and size distribution changed from polymodal to monomodal, while the negative zeta potential increased from − 30.5 mV to − 52.8 mV. Additionally, Fe2.80Gd0.20O4@CA nanoparticles were embedded in human serum albumin to produce magnetic microspheres (MMS), which could be used as a drug delivery platform. FE-SEM images showed that magnetic nanoparticles form clusters within MMS. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
T2  - Applied Physics A
T1  - Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability
VL  - 127
IS  - 5
SP  - 372
DO  - 10.1007/s00339-021-04509-6
ER  - 
@article{
author = "Bošković, Marko and Fabián, Martin and Vranješ-Đurić, Sanja and Antić, Bratislav",
year = "2021",
abstract = "A series of Fe3-xGdxO4 (x = 0, 0.1, 0.2) nanoparticles with an average diameter of around 8 nm were prepared by the coprecipitation method and coated by citric acid (CA). The nanoparticles show superparamagnetic behavior at room temperature and transition to a blocked state, at a temperature from ~ 89 K to ~ 213 K, depending on Gd concentration. The saturation magnetization of Fe3-xGdxO4 tended to drop for samples with a higher content of Gd. High colloidal stability is mandatory in medical applications of magnetic nanoparticles, and here we demonstrate a new procedure for its improvement. A colloidal sample of Fe3O4@CA was mechanically milled, after which dynamic light scattering and zeta potential measurements were used to monitor the hydrodynamic size and colloidal stability of the acquired suspensions. After 90 min of milling, the average hydrodynamic diameter decreased by 40%, and size distribution changed from polymodal to monomodal, while the negative zeta potential increased from − 30.5 mV to − 52.8 mV. Additionally, Fe2.80Gd0.20O4@CA nanoparticles were embedded in human serum albumin to produce magnetic microspheres (MMS), which could be used as a drug delivery platform. FE-SEM images showed that magnetic nanoparticles form clusters within MMS. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.",
journal = "Applied Physics A",
title = "Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability",
volume = "127",
number = "5",
pages = "372",
doi = "10.1007/s00339-021-04509-6"
}
Bošković, M., Fabián, M., Vranješ-Đurić, S.,& Antić, B.. (2021). Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability. in Applied Physics A, 127(5), 372.
https://doi.org/10.1007/s00339-021-04509-6
Bošković M, Fabián M, Vranješ-Đurić S, Antić B. Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability. in Applied Physics A. 2021;127(5):372.
doi:10.1007/s00339-021-04509-6 .
Bošković, Marko, Fabián, Martin, Vranješ-Đurić, Sanja, Antić, Bratislav, "Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability" in Applied Physics A, 127, no. 5 (2021):372,
https://doi.org/10.1007/s00339-021-04509-6 . .

#### Critical assessment of protein intrinsic disorder prediction

(2021)

TY  - JOUR
AU  - Necci, Marco
AU  - Piovesan, Damiano
AU  - Tosatto, Silvio C. E.
AU  - Veljković, Nevena V.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9698
AB  - Intrinsically disordered proteins, defying the traditional protein structure–function paradigm, are a challenge to study experimentally. Because a large part of our knowledge rests on computational predictions, it is crucial that their accuracy is high. The Critical Assessment of protein Intrinsic Disorder prediction (CAID) experiment was established as a community-based blind test to determine the state of the art in prediction of intrinsically disordered regions and the subset of residues involved in binding. A total of 43 methods were evaluated on a dataset of 646 proteins from DisProt. The best methods use deep learning techniques and notably outperform physicochemical methods. The top disorder predictor has F max = 0.483 on the full dataset and F max = 0.792 following filtering out of bona fide structured regions. Disordered binding regions remain hard to predict, with F max = 0.231. Interestingly, computing times among methods can vary by up to four orders of magnitude.
T2  - Nature Methods
T1  - Critical assessment of protein intrinsic disorder prediction
VL  - 18
IS  - 5
SP  - 472
EP  - 481
DO  - 10.1038/s41592-021-01117-3
ER  - 
@article{
author = "Necci, Marco and Piovesan, Damiano and Tosatto, Silvio C. E. and Davidović, Radoslav S. and Veljković, Nevena V.",
year = "2021",
abstract = "Intrinsically disordered proteins, defying the traditional protein structure–function paradigm, are a challenge to study experimentally. Because a large part of our knowledge rests on computational predictions, it is crucial that their accuracy is high. The Critical Assessment of protein Intrinsic Disorder prediction (CAID) experiment was established as a community-based blind test to determine the state of the art in prediction of intrinsically disordered regions and the subset of residues involved in binding. A total of 43 methods were evaluated on a dataset of 646 proteins from DisProt. The best methods use deep learning techniques and notably outperform physicochemical methods. The top disorder predictor has F max = 0.483 on the full dataset and F max = 0.792 following filtering out of bona fide structured regions. Disordered binding regions remain hard to predict, with F max = 0.231. Interestingly, computing times among methods can vary by up to four orders of magnitude.",
journal = "Nature Methods",
title = "Critical assessment of protein intrinsic disorder prediction",
volume = "18",
number = "5",
pages = "472-481",
doi = "10.1038/s41592-021-01117-3"
}
Necci, M., Piovesan, D., Tosatto, S. C. E., Davidović, R. S.,& Veljković, N. V.. (2021). Critical assessment of protein intrinsic disorder prediction. in Nature Methods, 18(5), 472-481.
https://doi.org/10.1038/s41592-021-01117-3
Necci M, Piovesan D, Tosatto SCE, Davidović RS, Veljković NV. Critical assessment of protein intrinsic disorder prediction. in Nature Methods. 2021;18(5):472-481.
doi:10.1038/s41592-021-01117-3 .
Necci, Marco, Piovesan, Damiano, Tosatto, Silvio C. E., Davidović, Radoslav S., Veljković, Nevena V., "Critical assessment of protein intrinsic disorder prediction" in Nature Methods, 18, no. 5 (2021):472-481,
https://doi.org/10.1038/s41592-021-01117-3 . .
 42 22

#### Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?

(2021)

TY  - JOUR
AU  - Banjac, Katarina
AU  - Gluvić, Zoran
AU  - Isenović, Esma R.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9697
AB  - Thyroid nodules are among highly prevalent thyroid diseases. To make a distinction between benign and malignant thyroid nodules are of cumbersome significance for each endocrinologist. There is no unique and completely accurate diagnostic test, method, or even biomarker that points to a malignant thyroid nodule. Many studies in modern thyroidology are conducted to determine the usefulness of individual biomarkers, which could help clinicians detect thyroid nodules' potential malignant nature. One interesting biomarker with a promising diagnostic potential for the thyroid gland pathological conditions is nitric oxide (NO). Inducible nitric oxide synthase expression is increased in thyroiditis cases and even more in thyroid carcinoma cases, directly connected with increased NO levels in both pathological conditions. We hypothesize that the basal levels of nitrite/nitrate in serum and biopsy washout could indicate nodules' malignant nature.
T2  - Medical Hypotheses
T1  - Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?
VL  - 150
SP  - 110569
DO  - 10.1016/j.mehy.2021.110569
ER  - 
@article{
author = "Samardžić, Vladimir and Banjac, Katarina and Obradović, Milan and Gluvić, Zoran and Isenović, Esma R.",
year = "2021",
abstract = "Thyroid nodules are among highly prevalent thyroid diseases. To make a distinction between benign and malignant thyroid nodules are of cumbersome significance for each endocrinologist. There is no unique and completely accurate diagnostic test, method, or even biomarker that points to a malignant thyroid nodule. Many studies in modern thyroidology are conducted to determine the usefulness of individual biomarkers, which could help clinicians detect thyroid nodules' potential malignant nature. One interesting biomarker with a promising diagnostic potential for the thyroid gland pathological conditions is nitric oxide (NO). Inducible nitric oxide synthase expression is increased in thyroiditis cases and even more in thyroid carcinoma cases, directly connected with increased NO levels in both pathological conditions. We hypothesize that the basal levels of nitrite/nitrate in serum and biopsy washout could indicate nodules' malignant nature.",
journal = "Medical Hypotheses",
title = "Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?",
volume = "150",
pages = "110569",
doi = "10.1016/j.mehy.2021.110569"
}
Samardžić, V., Banjac, K., Obradović, M., Gluvić, Z.,& Isenović, E. R.. (2021). Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?. in Medical Hypotheses, 150, 110569.
https://doi.org/10.1016/j.mehy.2021.110569
Samardžić V, Banjac K, Obradović M, Gluvić Z, Isenović ER. Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?. in Medical Hypotheses. 2021;150:110569.
doi:10.1016/j.mehy.2021.110569 .
Samardžić, Vladimir, Banjac, Katarina, Obradović, Milan, Gluvić, Zoran, Isenović, Esma R., "Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?" in Medical Hypotheses, 150 (2021):110569,
https://doi.org/10.1016/j.mehy.2021.110569 . .

#### Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9696
AB  - Angular distributions of the decay B+→ K∗(892)+μ+μ− are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K∗(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction.
T2  - Journal of High Energy Physics
T1  - Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV
VL  - 2021
IS  - 4
SP  - 124
DO  - 10.1007/JHEP04(2021)124
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "Angular distributions of the decay B+→ K∗(892)+μ+μ− are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K∗(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction.",
journal = "Journal of High Energy Physics",
title = "Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV",
volume = "2021",
number = "4",
pages = "124",
doi = "10.1007/JHEP04(2021)124"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV. in Journal of High Energy Physics, 2021(4), 124.
https://doi.org/10.1007/JHEP04(2021)124
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Đorđević M, Milenović P, Milošević J. Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV. in Journal of High Energy Physics. 2021;2021(4):124.
doi:10.1007/JHEP04(2021)124 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV" in Journal of High Energy Physics, 2021, no. 4 (2021):124,
https://doi.org/10.1007/JHEP04(2021)124 . .
 4 1

#### Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology

(2021)

TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Xia, Yang
AU  - Benzine, Omar
AU  - Petrović, Jelena
AU  - Papan, Jelena
AU  - Lukić-Petrović, Svetlana R.
AU  - Litvinchuk, Alexander P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9691
AB  - Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.
T2  - Ceramics International
T1  - Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology
VL  - 47
IS  - 4
SP  - 4944
EP  - 4953
DO  - 10.1016/j.ceramint.2020.10.070
ER  - 
@article{
author = "Ivetić, Tamara B. and Xia, Yang and Benzine, Omar and Petrović, Jelena and Papan, Jelena and Lukić-Petrović, Svetlana R. and Litvinchuk, Alexander P.",
year = "2021",
abstract = "Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.",
journal = "Ceramics International",
title = "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology",
volume = "47",
number = "4",
pages = "4944-4953",
doi = "10.1016/j.ceramint.2020.10.070"
}
Ivetić, T. B., Xia, Y., Benzine, O., Petrović, J., Papan, J., Lukić-Petrović, S. R.,& Litvinchuk, A. P.. (2021). Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International, 47(4), 4944-4953.
https://doi.org/10.1016/j.ceramint.2020.10.070
Ivetić TB, Xia Y, Benzine O, Petrović J, Papan J, Lukić-Petrović SR, Litvinchuk AP. Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International. 2021;47(4):4944-4953.
doi:10.1016/j.ceramint.2020.10.070 .
Ivetić, Tamara B., Xia, Yang, Benzine, Omar, Petrović, Jelena, Papan, Jelena, Lukić-Petrović, Svetlana R., Litvinchuk, Alexander P., "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology" in Ceramics International, 47, no. 4 (2021):4944-4953,
https://doi.org/10.1016/j.ceramint.2020.10.070 . .
 1 3 2

#### Vendor‐independent skin dose mapping application for interventional radiology and cardiology

(2021)

TY  - JOUR
AU  - Krajinović, Marko
AU  - Kržanović, Nikola
AU  - Ciraj-Bjelac, Olivera
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9519
AB  - Purpose: The purpose of this paper is to present and validate an originally developed application SkinCare used for skin dose mapping in interventional procedures, which are associated with relatively high radiation doses to the patient’s skin and possible skin reactions. Methods: SkinCare is an application tool for generating skin dose maps following interventional radiology and cardiology procedures using the realistic 3D patient models. Skin dose is calculated using data from Digital Imaging and Communications in Medicine (DICOM) Radiation Dose Structured Reports (RDSRs). SkinCare validation was performed by using the data from the Siemens Artis Zee Biplane fluoroscopy system and conducting “Acceptance and quality control protocols for skin dose calculating software solutions in interventional cardiology” developed and tested in the frame of the VERIDIC project. XR-RV3 Gafchromic films were used as dosimeters to compare peak skin doses (PSDs) and dose maps obtained through measurements and calculations. DICOM RDSRs from four fluoroscopy systems of different vendors (Canon, GE, Philips, and Siemens) were used for the development of the SkinCare and for the comparison of skin dose maps generated using SkinCare to skin dose maps generated by different commercial software tools (Dose Tracking System (DTS) from Canon, RadimetricsTM from Bayer and RDM from MEDSQUARE). The same RDSRs generated during a cardiology clinical procedure (percutaneous coronary intervention—PCI) were used for comparison. Results: Validation performed using VERIDIC's protocols for skin dose calculation software showed that PSD calculated by SkinCare is within 17% and 16% accuracy compared to measurements using XR-RV3 Gafchromic films for fundamental irradiation setups and simplified clinical procedures, respectively. Good visual agreement between dose maps generated by SkinCare and DTS, RadimetricsTM and RDM was obtained. Conclusions: SkinCare is proved to be very convenient solution that can be used for monitoring delivered dose following interventional procedures. © 2021 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.
T2  - Journal of Applied Clinical Medical Physics
T1  - Vendor‐independent skin dose mapping application for interventional radiology and cardiology
VL  - 22
IS  - 2
SP  - 145
EP  - 157
DO  - 10.1002/acm2.13167
ER  - 
@article{
author = "Krajinović, Marko and Kržanović, Nikola and Ciraj-Bjelac, Olivera",
year = "2021",
abstract = "Purpose: The purpose of this paper is to present and validate an originally developed application SkinCare used for skin dose mapping in interventional procedures, which are associated with relatively high radiation doses to the patient’s skin and possible skin reactions. Methods: SkinCare is an application tool for generating skin dose maps following interventional radiology and cardiology procedures using the realistic 3D patient models. Skin dose is calculated using data from Digital Imaging and Communications in Medicine (DICOM) Radiation Dose Structured Reports (RDSRs). SkinCare validation was performed by using the data from the Siemens Artis Zee Biplane fluoroscopy system and conducting “Acceptance and quality control protocols for skin dose calculating software solutions in interventional cardiology” developed and tested in the frame of the VERIDIC project. XR-RV3 Gafchromic films were used as dosimeters to compare peak skin doses (PSDs) and dose maps obtained through measurements and calculations. DICOM RDSRs from four fluoroscopy systems of different vendors (Canon, GE, Philips, and Siemens) were used for the development of the SkinCare and for the comparison of skin dose maps generated using SkinCare to skin dose maps generated by different commercial software tools (Dose Tracking System (DTS) from Canon, RadimetricsTM from Bayer and RDM from MEDSQUARE). The same RDSRs generated during a cardiology clinical procedure (percutaneous coronary intervention—PCI) were used for comparison. Results: Validation performed using VERIDIC's protocols for skin dose calculation software showed that PSD calculated by SkinCare is within 17% and 16% accuracy compared to measurements using XR-RV3 Gafchromic films for fundamental irradiation setups and simplified clinical procedures, respectively. Good visual agreement between dose maps generated by SkinCare and DTS, RadimetricsTM and RDM was obtained. Conclusions: SkinCare is proved to be very convenient solution that can be used for monitoring delivered dose following interventional procedures. © 2021 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.",
journal = "Journal of Applied Clinical Medical Physics",
title = "Vendor‐independent skin dose mapping application for interventional radiology and cardiology",
volume = "22",
number = "2",
pages = "145-157",
doi = "10.1002/acm2.13167"
}
Krajinović, M., Kržanović, N.,& Ciraj-Bjelac, O.. (2021). Vendor‐independent skin dose mapping application for interventional radiology and cardiology. in Journal of Applied Clinical Medical Physics, 22(2), 145-157.
https://doi.org/10.1002/acm2.13167
Krajinović M, Kržanović N, Ciraj-Bjelac O. Vendor‐independent skin dose mapping application for interventional radiology and cardiology. in Journal of Applied Clinical Medical Physics. 2021;22(2):145-157.
doi:10.1002/acm2.13167 .
Krajinović, Marko, Kržanović, Nikola, Ciraj-Bjelac, Olivera, "Vendor‐independent skin dose mapping application for interventional radiology and cardiology" in Journal of Applied Clinical Medical Physics, 22, no. 2 (2021):145-157,
https://doi.org/10.1002/acm2.13167 . .
 1 2 1 1

#### Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project

(2021)

TY  - JOUR
AU  - Kržanović, Nikola
AU  - Blideanu, Valentin
AU  - Ciraj-Bjelac, Olivera
AU  - Plagnard, Johann
AU  - Schoonjans, Werner
AU  - Živanović, Miloš Z.
AU  - Dabin, Jérémie
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9554
AB  - Interventional procedures in radiology and cardiology are associated with high dose to the patient. Accurate dosimetry is essential and calibration of the equipment is a means to provide the necessary accuracy of dose assessment. The objective of this work is to investigate the performance of dosimeters used in interventional procedures in different standard and non-standard X-ray radiation qualities, and to investigate potential uncertainties related to dose measurements, thus improving accuracy of patient dosimetry in interventional procedures. Four new reference radiation qualities dedicated to interventional cardiology applications have been established, allowing calibration of dosimeters used in clinical conditions with appropriate traceability to primary standards. Testing of solid-state semiconductor detectors and thermoluminescent dosimeter properties, e.g. influence of photon energy, angle of incidence and dose rate, was performed in the standard and non-standard radiation qualities. Both dosimeter types showed good performance in the non-standard beams during all performance tests. Solid-state dosimeters displayed weak dependence on energy, angle of incidence and dose rate, in the range defined by the manufacturer and requirements of the international standard. Thermoluminescent dosimeters displayed excellent linearity and angular dependence. The influence of energy dependence on measurement uncertainty can be reduced if appropriate radiation quality is selected for calibration. © 2021 Elsevier Ltd
T1  - Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project
VL  - 141
SP  - 106515
ER  - 
@article{
author = "Kržanović, Nikola and Blideanu, Valentin and Ciraj-Bjelac, Olivera and Plagnard, Johann and Schoonjans, Werner and Živanović, Miloš Z. and Dabin, Jérémie",
year = "2021",
abstract = "Interventional procedures in radiology and cardiology are associated with high dose to the patient. Accurate dosimetry is essential and calibration of the equipment is a means to provide the necessary accuracy of dose assessment. The objective of this work is to investigate the performance of dosimeters used in interventional procedures in different standard and non-standard X-ray radiation qualities, and to investigate potential uncertainties related to dose measurements, thus improving accuracy of patient dosimetry in interventional procedures. Four new reference radiation qualities dedicated to interventional cardiology applications have been established, allowing calibration of dosimeters used in clinical conditions with appropriate traceability to primary standards. Testing of solid-state semiconductor detectors and thermoluminescent dosimeter properties, e.g. influence of photon energy, angle of incidence and dose rate, was performed in the standard and non-standard radiation qualities. Both dosimeter types showed good performance in the non-standard beams during all performance tests. Solid-state dosimeters displayed weak dependence on energy, angle of incidence and dose rate, in the range defined by the manufacturer and requirements of the international standard. Thermoluminescent dosimeters displayed excellent linearity and angular dependence. The influence of energy dependence on measurement uncertainty can be reduced if appropriate radiation quality is selected for calibration. © 2021 Elsevier Ltd",
title = "Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project",
volume = "141",
pages = "106515",
}
Kržanović, N., Blideanu, V., Ciraj-Bjelac, O., Plagnard, J., Schoonjans, W., Živanović, M. Z.,& Dabin, J.. (2021). Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project. in Radiation Measurements, 141, 106515.
https://doi.org/10.1016/j.radmeas.2021.106515
Kržanović N, Blideanu V, Ciraj-Bjelac O, Plagnard J, Schoonjans W, Živanović MZ, Dabin J. Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project. in Radiation Measurements. 2021;141:106515.
doi:10.1016/j.radmeas.2021.106515 .
Kržanović, Nikola, Blideanu, Valentin, Ciraj-Bjelac, Olivera, Plagnard, Johann, Schoonjans, Werner, Živanović, Miloš Z., Dabin, Jérémie, "Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project" in Radiation Measurements, 141 (2021):106515,
https://doi.org/10.1016/j.radmeas.2021.106515 . .
 2 1

#### Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9653
AB  - A Correction to this paper has been published: https://doi.org/10.1140/epjc/s10052-020-08739-5
T2  - European Physical Journal C
T1  - Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)
VL  - 81
IS  - 4
SP  - 333
DO  - 10.1140/epjc/s10052-021-08959-3
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A Correction to this paper has been published: https://doi.org/10.1140/epjc/s10052-020-08739-5",
journal = "European Physical Journal C",
title = "Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)",
volume = "81",
number = "4",
pages = "333",
doi = "10.1140/epjc/s10052-021-08959-3"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5). in European Physical Journal C, 81(4), 333.
https://doi.org/10.1140/epjc/s10052-021-08959-3
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5). in European Physical Journal C. 2021;81(4):333.
doi:10.1140/epjc/s10052-021-08959-3 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)" in European Physical Journal C, 81, no. 4 (2021):333,
https://doi.org/10.1140/epjc/s10052-021-08959-3 . .
 1 1

#### Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9652
AB  - A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a data sample of proton-proton collisions at s = 13 TeV, corresponding to an integrated luminosity of 137 fb−1, collected by the CMS experiment at the LHC. Three potential signatures of physics beyond the standard model are explored: an excess of events with a lepton pair, whose invariant mass is consistent with the Z boson mass; a kinematic edge in the invariant mass distribution of the lepton pair; and the nonresonant production of two leptons. The observed event yields are consistent with those expected from standard model backgrounds. The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) GeV, while those of the searches for the other two signatures allow the exclusion of light-flavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry scenarios.
T2  - Journal of High Energy Physics
T1  - Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV
VL  - 2021
IS  - 4
SP  - 123
DO  - 10.1007/JHEP04(2021)123
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a data sample of proton-proton collisions at s = 13 TeV, corresponding to an integrated luminosity of 137 fb−1, collected by the CMS experiment at the LHC. Three potential signatures of physics beyond the standard model are explored: an excess of events with a lepton pair, whose invariant mass is consistent with the Z boson mass; a kinematic edge in the invariant mass distribution of the lepton pair; and the nonresonant production of two leptons. The observed event yields are consistent with those expected from standard model backgrounds. The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) GeV, while those of the searches for the other two signatures allow the exclusion of light-flavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry scenarios.",
journal = "Journal of High Energy Physics",
title = "Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV",
volume = "2021",
number = "4",
pages = "123",
doi = "10.1007/JHEP04(2021)123"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics, 2021(4), 123.
https://doi.org/10.1007/JHEP04(2021)123
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Đorđević M, Milenović P, Milošević J. Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(4):123.
doi:10.1007/JHEP04(2021)123 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 4 (2021):123,
https://doi.org/10.1007/JHEP04(2021)123 . .
 4 8

#### Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9651
AB  - Measurements are presented of differential cross sections for the production of Z bosons in association with at least one jet initiated by a charm quark in pp collisions at s = 13 TeV. The data recorded by the CMS experiment at the LHC correspond to an integrated luminosity of 35.9 fb−1. The final states contain a pair of electrons or muons that are the decay products of a Z boson, and a jet consistent with being initiated by a charm quark produced in the hard interaction. Differential cross sections as a function of the transverse momentum pT of the Z boson and pT of the charm jet are compared with predictions from Monte Carlo event generators. The inclusive production cross section 405.4 ± 5.6 (stat) ± 24.3 (exp) ± 3.7 (theo) pb, is measured in a fiducial region requiring both leptons to have pseudorapidity |η| < 2.4 and pT> 10 GeV, at least one lepton with pT> 26 GeV, and a mass of the pair in the range 71–111 GeV, while the charm jet is required to have pT> 30 GeV and |η| < 2.4. These are the first measurements of these cross sections in proton-proton collisions at 13 TeV.
T2  - Journal of High Energy Physics
T1  - Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV
VL  - 2021
IS  - 4
SP  - 109
DO  - 10.1007/JHEP04(2021)109
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "Measurements are presented of differential cross sections for the production of Z bosons in association with at least one jet initiated by a charm quark in pp collisions at s = 13 TeV. The data recorded by the CMS experiment at the LHC correspond to an integrated luminosity of 35.9 fb−1. The final states contain a pair of electrons or muons that are the decay products of a Z boson, and a jet consistent with being initiated by a charm quark produced in the hard interaction. Differential cross sections as a function of the transverse momentum pT of the Z boson and pT of the charm jet are compared with predictions from Monte Carlo event generators. The inclusive production cross section 405.4 ± 5.6 (stat) ± 24.3 (exp) ± 3.7 (theo) pb, is measured in a fiducial region requiring both leptons to have pseudorapidity |η| < 2.4 and pT> 10 GeV, at least one lepton with pT> 26 GeV, and a mass of the pair in the range 71–111 GeV, while the charm jet is required to have pT> 30 GeV and |η| < 2.4. These are the first measurements of these cross sections in proton-proton collisions at 13 TeV.",
journal = "Journal of High Energy Physics",
title = "Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV",
volume = "2021",
number = "4",
pages = "109",
doi = "10.1007/JHEP04(2021)109"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV. in Journal of High Energy Physics, 2021(4), 109.
https://doi.org/10.1007/JHEP04(2021)109
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(4):109.
doi:10.1007/JHEP04(2021)109 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 4 (2021):109,
https://doi.org/10.1007/JHEP04(2021)109 . .
 1

#### Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9650
AB  - A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb−1. No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fraction into γγb b ¯. The observed (expected) upper limit is determined to be 0.67 (0.45) fb, which corresponds to 7.7 (5.2) times the standard model prediction. This search has the highest sensitivity to Higgs boson pair production to date. Assuming all other Higgs boson couplings are equal to their values in the standard model, the observed coupling modifiers of the trilinear Higgs boson self-coupling κλ and the coupling between a pair of Higgs bosons and a pair of vector bosons c2V are constrained within the ranges −3.3 < κλ< 8.5 and −1.3 < c2V< 3.5 at 95% confidence level. Constraints on κλ are also set by combining this analysis with a search for single Higgs bosons decaying to two photons, produced in association with top quark-antiquark pairs, and by performing a simultaneous fit of κλ and the top quark Yukawa coupling modifier κt.
T2  - Journal of High Energy Physics
T1  - Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV
VL  - 2021
IS  - 3
SP  - 257
DO  - 10.1007/JHEP03(2021)257
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb−1. No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fraction into γγb b ¯. The observed (expected) upper limit is determined to be 0.67 (0.45) fb, which corresponds to 7.7 (5.2) times the standard model prediction. This search has the highest sensitivity to Higgs boson pair production to date. Assuming all other Higgs boson couplings are equal to their values in the standard model, the observed coupling modifiers of the trilinear Higgs boson self-coupling κλ and the coupling between a pair of Higgs bosons and a pair of vector bosons c2V are constrained within the ranges −3.3 < κλ< 8.5 and −1.3 < c2V< 3.5 at 95% confidence level. Constraints on κλ are also set by combining this analysis with a search for single Higgs bosons decaying to two photons, produced in association with top quark-antiquark pairs, and by performing a simultaneous fit of κλ and the top quark Yukawa coupling modifier κt.",
journal = "Journal of High Energy Physics",
title = "Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV",
volume = "2021",
number = "3",
pages = "257",
doi = "10.1007/JHEP03(2021)257"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics, 2021(3), 257.
https://doi.org/10.1007/JHEP03(2021)257
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Đorđević M, Milenović P, Milošević J. Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(3):257.
doi:10.1007/JHEP03(2021)257 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 3 (2021):257,
https://doi.org/10.1007/JHEP03(2021)257 . .
 2 1 2

#### Development and validation of HERWIG 7 tunes from CMS underlying-event measurements

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Ambrogi, F.
AU  - Bergauer, T.
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9649
AB  - This paper presents new sets of parameters (“tunes”) for the underlying-event model of the  $${\textsc {herwig}} \,7$$     H E R W I G   7     event generator. These parameters control the description of multiple-parton interactions (MPI) and colour reconnection in  $${\textsc {herwig}} \,7$$     H E R W I G   7    , and are obtained from a fit to minimum-bias data collected by the CMS experiment at  $$\sqrt{s}=0.9$$     s  = 0.9    , 7, and  $$13 \,\text {Te}\text {V}$$    13   Te      . The tunes are based on the NNPDF 3.1 next-to-next-to-leading-order parton distribution function (PDF) set for the parton shower, and either a leading-order or next-to-next-to-leading-order PDF set for the simulation of MPI and the beam remnants. Predictions utilizing the tunes are produced for event shape observables in electron-positron collisions, and for minimum-bias, inclusive jet, top quark pair, and Z and W boson events in proton-proton collisions, and are compared with data. Each of the new tunes describes the data at a reasonable level, and the tunes using a leading-order PDF for the simulation of MPI provide the best description of the data.
T2  - European Physical Journal C
T1  - Development and validation of HERWIG 7 tunes from CMS underlying-event measurements
VL  - 81
IS  - 4
SP  - 312
DO  - 10.1140/epjc/s10052-021-08949-5
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Bergauer, T. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "This paper presents new sets of parameters (“tunes”) for the underlying-event model of the  $${\textsc {herwig}} \,7$$     H E R W I G   7     event generator. These parameters control the description of multiple-parton interactions (MPI) and colour reconnection in  $${\textsc {herwig}} \,7$$     H E R W I G   7    , and are obtained from a fit to minimum-bias data collected by the CMS experiment at  $$\sqrt{s}=0.9$$     s  = 0.9    , 7, and  $$13 \,\text {Te}\text {V}$$    13   Te      . The tunes are based on the NNPDF 3.1 next-to-next-to-leading-order parton distribution function (PDF) set for the parton shower, and either a leading-order or next-to-next-to-leading-order PDF set for the simulation of MPI and the beam remnants. Predictions utilizing the tunes are produced for event shape observables in electron-positron collisions, and for minimum-bias, inclusive jet, top quark pair, and Z and W boson events in proton-proton collisions, and are compared with data. Each of the new tunes describes the data at a reasonable level, and the tunes using a leading-order PDF for the simulation of MPI provide the best description of the data.",
journal = "European Physical Journal C",
title = "Development and validation of HERWIG 7 tunes from CMS underlying-event measurements",
volume = "81",
number = "4",
pages = "312",
doi = "10.1140/epjc/s10052-021-08949-5"
}
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Development and validation of HERWIG 7 tunes from CMS underlying-event measurements. in European Physical Journal C, 81(4), 312.
https://doi.org/10.1140/epjc/s10052-021-08949-5
Sirunyan A, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Development and validation of HERWIG 7 tunes from CMS underlying-event measurements. in European Physical Journal C. 2021;81(4):312.
doi:10.1140/epjc/s10052-021-08949-5 .
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Development and validation of HERWIG 7 tunes from CMS underlying-event measurements" in European Physical Journal C, 81, no. 4 (2021):312,
https://doi.org/10.1140/epjc/s10052-021-08949-5 . .
 1 1

#### Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas

(2021)

TY  - JOUR
AU  - Cabrera-Barjas, Gustavo
AU  - González, Cristian
AU  - Nešić, Aleksandra
AU  - Marrugo, Kelly P
AU  - Gómez, Oscar
AU  - Delattre, Cédric
AU  - Valdes, Oscar
AU  - Yin, Heng
AU  - Bravo, Gaston
AU  - Cea, Juan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9628
AB  - β-chitin was isolated from marine waste, giant Humboldt squid Dosidicus gigas, and further converted to nanofibers by use of a collider machine under acidic conditions (pH 3). The FTIR, TGA, and NMR analysis confirmed the efficient extraction of β-chitin. The SEM, TEM, and XRD characterization results verified that β-chitin crystalline structure were maintained after mechanical treatment. The mean particle size of β-chitin nanofibers was in the range between 10 and 15 nm, according to the TEM analysis. In addition, the β-chitin nanofibers were converted into films by the simple solvent-casting and drying process at 60 °C. The obtained films had high lightness, which was evidenced by the CIELAB color test. Moreover, the films showed the medium swelling degree (250–290%) in aqueous solutions of different pH and good mechanical resistance in the range between 4 and 17 MPa, depending on film thickness. The results obtained in this work show that marine waste can be efficiently converted to biomaterial by use of mild extractive conditions and simple mechanical treatment, offering great potential for the future development of sustainable multifunctional materials for various industrial applications such as food packaging, agriculture, and/or wound dressing.
T2  - Marine Drugs
T1  - Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas
VL  - 19
IS  - 4
SP  - 184
DO  - 10.3390/md19040184
ER  - 
@article{
author = "Cabrera-Barjas, Gustavo and González, Cristian and Nešić, Aleksandra and Marrugo, Kelly P and Gómez, Oscar and Delattre, Cédric and Valdes, Oscar and Yin, Heng and Bravo, Gaston and Cea, Juan",
year = "2021",
abstract = "β-chitin was isolated from marine waste, giant Humboldt squid Dosidicus gigas, and further converted to nanofibers by use of a collider machine under acidic conditions (pH 3). The FTIR, TGA, and NMR analysis confirmed the efficient extraction of β-chitin. The SEM, TEM, and XRD characterization results verified that β-chitin crystalline structure were maintained after mechanical treatment. The mean particle size of β-chitin nanofibers was in the range between 10 and 15 nm, according to the TEM analysis. In addition, the β-chitin nanofibers were converted into films by the simple solvent-casting and drying process at 60 °C. The obtained films had high lightness, which was evidenced by the CIELAB color test. Moreover, the films showed the medium swelling degree (250–290%) in aqueous solutions of different pH and good mechanical resistance in the range between 4 and 17 MPa, depending on film thickness. The results obtained in this work show that marine waste can be efficiently converted to biomaterial by use of mild extractive conditions and simple mechanical treatment, offering great potential for the future development of sustainable multifunctional materials for various industrial applications such as food packaging, agriculture, and/or wound dressing.",
journal = "Marine Drugs",
title = "Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas",
volume = "19",
number = "4",
pages = "184",
doi = "10.3390/md19040184"
}
Cabrera-Barjas, G., González, C., Nešić, A., Marrugo, K. P., Gómez, O., Delattre, C., Valdes, O., Yin, H., Bravo, G.,& Cea, J.. (2021). Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas. in Marine Drugs, 19(4), 184.
https://doi.org/10.3390/md19040184
Cabrera-Barjas G, González C, Nešić A, Marrugo KP, Gómez O, Delattre C, Valdes O, Yin H, Bravo G, Cea J. Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas. in Marine Drugs. 2021;19(4):184.
doi:10.3390/md19040184 .
Cabrera-Barjas, Gustavo, González, Cristian, Nešić, Aleksandra, Marrugo, Kelly P, Gómez, Oscar, Delattre, Cédric, Valdes, Oscar, Yin, Heng, Bravo, Gaston, Cea, Juan, "Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas" in Marine Drugs, 19, no. 4 (2021):184,
https://doi.org/10.3390/md19040184 . .
 2 1 1 1

#### Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles

(2021)

TY  - JOUR
AU  - Rakočević, Lazar
AU  - Srejić, Irina
AU  - Maksić, Aleksandar
AU  - Golubović, Jelena
AU  - Štrbac, Svetlana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9626
AB  - Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.
T2  - Catalysts
T1  - Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles
VL  - 11
IS  - 4
SP  - 481
DO  - 10.3390/catal11040481
ER  - 
@article{
author = "Rakočević, Lazar and Srejić, Irina and Maksić, Aleksandar and Golubović, Jelena and Štrbac, Svetlana",
year = "2021",
abstract = "Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.",
journal = "Catalysts",
title = "Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles",
volume = "11",
number = "4",
pages = "481",
doi = "10.3390/catal11040481"
}
Rakočević, L., Srejić, I., Maksić, A., Golubović, J.,& Štrbac, S.. (2021). Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles. in Catalysts, 11(4), 481.
https://doi.org/10.3390/catal11040481
Rakočević L, Srejić I, Maksić A, Golubović J, Štrbac S. Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles. in Catalysts. 2021;11(4):481.
doi:10.3390/catal11040481 .
Rakočević, Lazar, Srejić, Irina, Maksić, Aleksandar, Golubović, Jelena, Štrbac, Svetlana, "Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles" in Catalysts, 11, no. 4 (2021):481,
https://doi.org/10.3390/catal11040481 . .
 1 1

#### Cytotoxic activities of Hypericum perforatum L. extracts against 2D and 3D cancer cell models

(2021)

TY  - JOUR
AU  - Matić, Ivana Z.
AU  - Ergün, Sercan
AU  - Đorđić Crnogorac, Marija
AU  - Misir, Sema
AU  - Aliyazicioğlu, Yüksel
AU  - Damjanović, Ana
AU  - Džudžević-Čančar, Hurija
AU  - Stanojković, Tatjana
AU  - Konanç, Kalbiye
AU  - Petrović, Nina
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9406
AB  - Six extracts were obtained from plant species Hypericum perforatum L., collected at Samsun in Turkey. The aim of this study was to examine the mechanisms of the anticancer activity of these extracts. Methanol, ethyl-acetate and hexane were used as a solvents for extraction from both branch-body part of the plant (extracts 1, 2 and 3) and from plant flowers (extracts 4, 5 and 6). The cytotoxic effects of the extracts were determined against 2D and 3D cancer cell models. Cell cycle changes of treated HeLa cells were analyzed by flow cytometry. Measurements of gene and microRNA expression levels in treated HeLa cells were done by quantitative real time PCR. Five examined extracts (2–6) exerted selective concentration-dependent cytotoxic effects on HeLa, K562, and A549 cancer cells, while the extract 1 exhibited very weak cytotoxicity. The extract 6 showed the highest intensity of cytotoxic activity. All tested extracts (2–6) demonstrated the ability to induce apoptosis in HeLa cells through activation of caspase-3. These extracts remarkably decreased gene expression levels of MMP2, MMP9, TIMP3, and VEGFA in HeLa cells. Flower extracts might have stronger effects on miR128/193a-5p/335 level changes than branch-body extracts. Hypericum perforatum extracts exerted weaker cytotoxic effects on 3D HeLa spheroids when compared with their effects on 2D monolayer HeLa cells. Taken together, results of our research may suggest the promising anticancer properties of the Hypericum perforatum extracts. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
T2  - Cytotechnology
T1  - Cytotoxic activities of Hypericum perforatum L. extracts against 2D and 3D cancer cell models
VL  - 73
IS  - 3
SP  - 373
EP  - 389
DO  - 10.1007/s10616-021-00464-5
ER  - 
@article{
author = "Matić, Ivana Z. and Ergün, Sercan and Đorđić Crnogorac, Marija and Misir, Sema and Aliyazicioğlu, Yüksel and Damjanović, Ana and Džudžević-Čančar, Hurija and Stanojković, Tatjana and Konanç, Kalbiye and Petrović, Nina",
year = "2021",
abstract = "Six extracts were obtained from plant species Hypericum perforatum L., collected at Samsun in Turkey. The aim of this study was to examine the mechanisms of the anticancer activity of these extracts. Methanol, ethyl-acetate and hexane were used as a solvents for extraction from both branch-body part of the plant (extracts 1, 2 and 3) and from plant flowers (extracts 4, 5 and 6). The cytotoxic effects of the extracts were determined against 2D and 3D cancer cell models. Cell cycle changes of treated HeLa cells were analyzed by flow cytometry. Measurements of gene and microRNA expression levels in treated HeLa cells were done by quantitative real time PCR. Five examined extracts (2–6) exerted selective concentration-dependent cytotoxic effects on HeLa, K562, and A549 cancer cells, while the extract 1 exhibited very weak cytotoxicity. The extract 6 showed the highest intensity of cytotoxic activity. All tested extracts (2–6) demonstrated the ability to induce apoptosis in HeLa cells through activation of caspase-3. These extracts remarkably decreased gene expression levels of MMP2, MMP9, TIMP3, and VEGFA in HeLa cells. Flower extracts might have stronger effects on miR128/193a-5p/335 level changes than branch-body extracts. Hypericum perforatum extracts exerted weaker cytotoxic effects on 3D HeLa spheroids when compared with their effects on 2D monolayer HeLa cells. Taken together, results of our research may suggest the promising anticancer properties of the Hypericum perforatum extracts. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.",
journal = "Cytotechnology",
title = "Cytotoxic activities of Hypericum perforatum L. extracts against 2D and 3D cancer cell models",
volume = "73",
number = "3",
pages = "373-389",
doi = "10.1007/s10616-021-00464-5"
}
Matić, I. Z., Ergün, S., Đorđić Crnogorac, M., Misir, S., Aliyazicioğlu, Y., Damjanović, A., Džudžević-Čančar, H., Stanojković, T., Konanç, K.,& Petrović, N.. (2021). Cytotoxic activities of Hypericum perforatum L. extracts against 2D and 3D cancer cell models. in Cytotechnology, 73(3), 373-389.
https://doi.org/10.1007/s10616-021-00464-5
Matić IZ, Ergün S, Đorđić Crnogorac M, Misir S, Aliyazicioğlu Y, Damjanović A, Džudžević-Čančar H, Stanojković T, Konanç K, Petrović N. Cytotoxic activities of Hypericum perforatum L. extracts against 2D and 3D cancer cell models. in Cytotechnology. 2021;73(3):373-389.
doi:10.1007/s10616-021-00464-5 .
Matić, Ivana Z., Ergün, Sercan, Đorđić Crnogorac, Marija, Misir, Sema, Aliyazicioğlu, Yüksel, Damjanović, Ana, Džudžević-Čančar, Hurija, Stanojković, Tatjana, Konanç, Kalbiye, Petrović, Nina, "Cytotoxic activities of Hypericum perforatum L. extracts against 2D and 3D cancer cell models" in Cytotechnology, 73, no. 3 (2021):373-389,
https://doi.org/10.1007/s10616-021-00464-5 . .

#### Condensation Effects on Electron Chiral Asymmetries in the Photoionization of Serine: From Free Molecules to Nanoparticles

(2021)

TY  - JOUR
AU  - Hartweg, Sebastian
AU  - Garcia, Gustavo A.
AU  - Božanić, Dušan K.
AU  - Nahon, Laurent
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9155
AB  - Structural changes at the molecular level, occurring at the onset of condensation, can be probed by angle-resolved valence photoelectron spectroscopy, which is inherently sensitive to the electronic structure. For larger condensed systems like aerosol particles, the observation of intrinsic angular anisotropies in photoemission (β parameters) is challenging due to the strong reduction of their magnitude by electron transport effects. Here, we use a less common, more sensitive observable in the form of the chiral asymmetry parameter to perform a comparative study of the VUV photoelectron spectroscopy and photoelectron circular dichroism (PECD) between pure gas phase enantiomers of the amino acid serine and their corresponding homochiral nanoparticles. We observe a relatively large (1%) and strongly kinetic energy-dependent asymmetry, discussed in terms of the emergence of local order and conformational changes potentially counterbalancing the loss of angular information due to electron transport scattering. This demonstrates the potential of PECD as a sensitive probe of the condensation effects from the gas phase to bulk-like chiral aerosol particles surpassing the potential of conventional photoemission observables such as β parameters. ©
T2  - The Journal of Physical Chemistry Letters
T1  - Condensation Effects on Electron Chiral Asymmetries in the Photoionization of Serine: From Free Molecules to Nanoparticles
VL  - 12
IS  - 9
SP  - 2385
EP  - 2393
DO  - 10.1021/acs.jpclett.1c00258
ER  - 
@article{
author = "Hartweg, Sebastian and Garcia, Gustavo A. and Božanić, Dušan K. and Nahon, Laurent",
year = "2021",
abstract = "Structural changes at the molecular level, occurring at the onset of condensation, can be probed by angle-resolved valence photoelectron spectroscopy, which is inherently sensitive to the electronic structure. For larger condensed systems like aerosol particles, the observation of intrinsic angular anisotropies in photoemission (β parameters) is challenging due to the strong reduction of their magnitude by electron transport effects. Here, we use a less common, more sensitive observable in the form of the chiral asymmetry parameter to perform a comparative study of the VUV photoelectron spectroscopy and photoelectron circular dichroism (PECD) between pure gas phase enantiomers of the amino acid serine and their corresponding homochiral nanoparticles. We observe a relatively large (1%) and strongly kinetic energy-dependent asymmetry, discussed in terms of the emergence of local order and conformational changes potentially counterbalancing the loss of angular information due to electron transport scattering. This demonstrates the potential of PECD as a sensitive probe of the condensation effects from the gas phase to bulk-like chiral aerosol particles surpassing the potential of conventional photoemission observables such as β parameters. ©",
journal = "The Journal of Physical Chemistry Letters",
title = "Condensation Effects on Electron Chiral Asymmetries in the Photoionization of Serine: From Free Molecules to Nanoparticles",
volume = "12",
number = "9",
pages = "2385-2393",
doi = "10.1021/acs.jpclett.1c00258"
}
Hartweg, S., Garcia, G. A., Božanić, D. K.,& Nahon, L.. (2021). Condensation Effects on Electron Chiral Asymmetries in the Photoionization of Serine: From Free Molecules to Nanoparticles. in The Journal of Physical Chemistry Letters, 12(9), 2385-2393.
https://doi.org/10.1021/acs.jpclett.1c00258
Hartweg S, Garcia GA, Božanić DK, Nahon L. Condensation Effects on Electron Chiral Asymmetries in the Photoionization of Serine: From Free Molecules to Nanoparticles. in The Journal of Physical Chemistry Letters. 2021;12(9):2385-2393.
doi:10.1021/acs.jpclett.1c00258 .
Hartweg, Sebastian, Garcia, Gustavo A., Božanić, Dušan K., Nahon, Laurent, "Condensation Effects on Electron Chiral Asymmetries in the Photoionization of Serine: From Free Molecules to Nanoparticles" in The Journal of Physical Chemistry Letters, 12, no. 9 (2021):2385-2393,
https://doi.org/10.1021/acs.jpclett.1c00258 . .
 5 3 3

#### Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F: a tribute to Mahir Hussein

(2021)

TY  - JOUR
AU  - Girard-Alcindor, V
AU  - Stefan, I
AU  - de Oliveira Santos, F
AU  - Sorlin, O
AU  - Ackermann, D
AU  - Angélique, J C
AU  - Assié, M
AU  - Assunção, M
AU  - Beaumel, D
AU  - Berthoumieux, E
AU  - Borcea, R
AU  - Cáceres, L
AU  - Čeliković, Igor T.
AU  - Ciemala, M
AU  - Chudoba, V
AU  - D’Agata, G
AU  - de Grancey, F
AU  - Dumitru, G
AU  - Flavigny, F
AU  - Fougères, C
AU  - Franchoo, S
AU  - Goyal, N
AU  - Grévy, S
AU  - Guillot, J
AU  - Guimaraes, V
AU  - Hammache, F
AU  - Kamalou, O
AU  - Kiener, J
AU  - Koyama, S
AU  - Lalanne, L
AU  - Lapoux, V
AU  - Matea, I
AU  - Matta, A
AU  - Meyer, A
AU  - Michel, N
AU  - Morfouace, P
AU  - Mrazek, J
AU  - Negoita, F
AU  - Niikura, M
AU  - Pantelica, D
AU  - Perrot, L
AU  - Petrone, C
AU  - Piot, J
AU  - Portail, C
AU  - Roger, T
AU  - Rotaru, F
AU  - Sánchez Benítez, A M
AU  - de Séréville, N
AU  - Stanoiu, M
AU  - Stodel, C
AU  - Subotić, Krunoslav M.
AU  - Suzuki, D
AU  - Tatischeff, V
AU  - Thomas, J C
AU  - Ujić, Predrag
AU  - Verney, D
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9152
AB  - The unbound proton-rich nuclei 16F and 15F are investigated experimentally and theoretically. Several experiments using the resonant elastic scattering method were performed at GANIL with radioactive beams to determine the properties of the low lying states of these nuclei. Strong asymmetry between 16F–16N and 15F–15C mirror nuclei is observed. The strength of the nucleon- nucleon effective interaction involving the loosely bound proton in the s1 / 2 orbit is significantly modified with respect to their mirror nuclei 16N and 15C. The reduction of the effective interaction is estimated by calculating the interaction energies with a schematic zero-range force. It is found that, after correcting for the effects due to changes in the radial distribution of the single-particle wave functions, the mirror symmetry of the n- p interaction is preserved between 16F and 16N, while a difference of 63% is measured between the p- p versus n- n interactions in the second excited state of 15F and 15C nuclei. Several explanations are proposed. © 2021, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - The European Physical Journal A
T1  - Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F: a tribute to Mahir Hussein
VL  - 57
IS  - 3
SP  - 93
DO  - 10.1140/epja/s10050-021-00410-1
ER  - 
@article{
author = "Girard-Alcindor, V and Stefan, I and de Oliveira Santos, F and Sorlin, O and Ackermann, D and Adsley, P and Angélique, J C and Assié, M and Assunção, M and Beaumel, D and Berthoumieux, E and Borcea, R and Cáceres, L and Čeliković, Igor T. and Ciemala, M and Chudoba, V and D’Agata, G and de Grancey, F and Dumitru, G and Flavigny, F and Fougères, C and Franchoo, S and Georgiadou, A and Goyal, N and Grévy, S and Guillot, J and Guimaraes, V and Hammache, F and Kamalou, O and Kiener, J and Koyama, S and Lalanne, L and Lapoux, V and Matea, I and Matta, A and Meyer, A and Michel, N and Morfouace, P and Mrazek, J and Negoita, F and Niikura, M and Pantelica, D and Perrot, L and Petrone, C and Piot, J and Portail, C and Roger, T and Rotaru, F and Sánchez Benítez, A M and de Séréville, N and Stanoiu, M and Stodel, C and Subotić, Krunoslav M. and Suzuki, D and Tatischeff, V and Thomas, J C and Ujić, Predrag and Verney, D",
year = "2021",
abstract = "The unbound proton-rich nuclei 16F and 15F are investigated experimentally and theoretically. Several experiments using the resonant elastic scattering method were performed at GANIL with radioactive beams to determine the properties of the low lying states of these nuclei. Strong asymmetry between 16F–16N and 15F–15C mirror nuclei is observed. The strength of the nucleon- nucleon effective interaction involving the loosely bound proton in the s1 / 2 orbit is significantly modified with respect to their mirror nuclei 16N and 15C. The reduction of the effective interaction is estimated by calculating the interaction energies with a schematic zero-range force. It is found that, after correcting for the effects due to changes in the radial distribution of the single-particle wave functions, the mirror symmetry of the n- p interaction is preserved between 16F and 16N, while a difference of 63% is measured between the p- p versus n- n interactions in the second excited state of 15F and 15C nuclei. Several explanations are proposed. © 2021, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "The European Physical Journal A",
title = "Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F: a tribute to Mahir Hussein",
volume = "57",
number = "3",
pages = "93",
doi = "10.1140/epja/s10050-021-00410-1"
}
Girard-Alcindor, V., Stefan, I., de Oliveira Santos, F., Sorlin, O., Ackermann, D., Adsley, P., Angélique, J. C., Assié, M., Assunção, M., Beaumel, D., Berthoumieux, E., Borcea, R., Cáceres, L., Čeliković, I. T., Ciemala, M., Chudoba, V., D’Agata, G., de Grancey, F., Dumitru, G., Flavigny, F., Fougères, C., Franchoo, S., Georgiadou, A., Goyal, N., Grévy, S., Guillot, J., Guimaraes, V., Hammache, F., Kamalou, O., Kiener, J., Koyama, S., Lalanne, L., Lapoux, V., Matea, I., Matta, A., Meyer, A., Michel, N., Morfouace, P., Mrazek, J., Negoita, F., Niikura, M., Pantelica, D., Perrot, L., Petrone, C., Piot, J., Portail, C., Roger, T., Rotaru, F., Sánchez Benítez, A. M., de Séréville, N., Stanoiu, M., Stodel, C., Subotić, K. M., Suzuki, D., Tatischeff, V., Thomas, J. C., Ujić, P.,& Verney, D.. (2021). Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F: a tribute to Mahir Hussein. in The European Physical Journal A, 57(3), 93.
https://doi.org/10.1140/epja/s10050-021-00410-1
Girard-Alcindor V, Stefan I, de Oliveira Santos F, Sorlin O, Ackermann D, Adsley P, Angélique JC, Assié M, Assunção M, Beaumel D, Berthoumieux E, Borcea R, Cáceres L, Čeliković IT, Ciemala M, Chudoba V, D’Agata G, de Grancey F, Dumitru G, Flavigny F, Fougères C, Franchoo S, Georgiadou A, Goyal N, Grévy S, Guillot J, Guimaraes V, Hammache F, Kamalou O, Kiener J, Koyama S, Lalanne L, Lapoux V, Matea I, Matta A, Meyer A, Michel N, Morfouace P, Mrazek J, Negoita F, Niikura M, Pantelica D, Perrot L, Petrone C, Piot J, Portail C, Roger T, Rotaru F, Sánchez Benítez AM, de Séréville N, Stanoiu M, Stodel C, Subotić KM, Suzuki D, Tatischeff V, Thomas JC, Ujić P, Verney D. Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F: a tribute to Mahir Hussein. in The European Physical Journal A. 2021;57(3):93.
doi:10.1140/epja/s10050-021-00410-1 .
Girard-Alcindor, V, Stefan, I, de Oliveira Santos, F, Sorlin, O, Ackermann, D, Adsley, P, Angélique, J C, Assié, M, Assunção, M, Beaumel, D, Berthoumieux, E, Borcea, R, Cáceres, L, Čeliković, Igor T., Ciemala, M, Chudoba, V, D’Agata, G, de Grancey, F, Dumitru, G, Flavigny, F, Fougères, C, Franchoo, S, Georgiadou, A, Goyal, N, Grévy, S, Guillot, J, Guimaraes, V, Hammache, F, Kamalou, O, Kiener, J, Koyama, S, Lalanne, L, Lapoux, V, Matea, I, Matta, A, Meyer, A, Michel, N, Morfouace, P, Mrazek, J, Negoita, F, Niikura, M, Pantelica, D, Perrot, L, Petrone, C, Piot, J, Portail, C, Roger, T, Rotaru, F, Sánchez Benítez, A M, de Séréville, N, Stanoiu, M, Stodel, C, Subotić, Krunoslav M., Suzuki, D, Tatischeff, V, Thomas, J C, Ujić, Predrag, Verney, D, "Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F: a tribute to Mahir Hussein" in The European Physical Journal A, 57, no. 3 (2021):93,
https://doi.org/10.1140/epja/s10050-021-00410-1 . .
 2 1 1 1

#### A crystallographic and solid-state NMR study of 1,4-disubstituted 2,5-diketopiperazines

(2021)

TY  - JOUR
AU  - Perić, Berislav
AU  - Juraj, Natalija Pantalon
AU  - Szalontai, Gábor
AU  - Veličković, Suzana
AU  - Veljković, Filip M.
AU  - Vikić-Topić, Dražen
AU  - Kirin, Srećko I.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9149
AB  - p-Disubstituted phenyldiketopiperazines 1 (R = H), 2 (R = NO2) and 3 (R = -N(CH3)2) were synthesized and characterized by NMR in solution and IR spectroscopy. The identity of the compounds was confirmed and their fragmentation analyzed by ESI-MS and HRMS spectrometry. X-ray single crystal structures revealed that the three compounds crystallize in space groups P21 (1), Pbca (2) and P21/c (3), respectively. The solid-state structures of 1–3 were further analyzed by a combination of solid-state NMR spectroscopy and GIPAW calculations. The NMR crystallography approach was used to analyze symmetry breaking of nearly centrosymmetric molecules in 1, and disorder of piperazine groups in crystal structure of 3. © 2021 Elsevier B.V.
T2  - Journal of Molecular Structure
T1  - A crystallographic and solid-state NMR study of 1,4-disubstituted 2,5-diketopiperazines
VL  - 1234
SP  - 130157
DO  - 10.1016/j.molstruc.2021.130157
ER  - 
@article{
author = "Perić, Berislav and Juraj, Natalija Pantalon and Szalontai, Gábor and Veličković, Suzana and Veljković, Filip M. and Vikić-Topić, Dražen and Kirin, Srećko I.",
year = "2021",
abstract = "p-Disubstituted phenyldiketopiperazines 1 (R = H), 2 (R = NO2) and 3 (R = -N(CH3)2) were synthesized and characterized by NMR in solution and IR spectroscopy. The identity of the compounds was confirmed and their fragmentation analyzed by ESI-MS and HRMS spectrometry. X-ray single crystal structures revealed that the three compounds crystallize in space groups P21 (1), Pbca (2) and P21/c (3), respectively. The solid-state structures of 1–3 were further analyzed by a combination of solid-state NMR spectroscopy and GIPAW calculations. The NMR crystallography approach was used to analyze symmetry breaking of nearly centrosymmetric molecules in 1, and disorder of piperazine groups in crystal structure of 3. © 2021 Elsevier B.V.",
journal = "Journal of Molecular Structure",
title = "A crystallographic and solid-state NMR study of 1,4-disubstituted 2,5-diketopiperazines",
volume = "1234",
pages = "130157",
doi = "10.1016/j.molstruc.2021.130157"
}
Perić, B., Juraj, N. P., Szalontai, G., Veličković, S., Veljković, F. M., Vikić-Topić, D.,& Kirin, S. I.. (2021). A crystallographic and solid-state NMR study of 1,4-disubstituted 2,5-diketopiperazines. in Journal of Molecular Structure, 1234, 130157.
https://doi.org/10.1016/j.molstruc.2021.130157
Perić B, Juraj NP, Szalontai G, Veličković S, Veljković FM, Vikić-Topić D, Kirin SI. A crystallographic and solid-state NMR study of 1,4-disubstituted 2,5-diketopiperazines. in Journal of Molecular Structure. 2021;1234:130157.
doi:10.1016/j.molstruc.2021.130157 .
Perić, Berislav, Juraj, Natalija Pantalon, Szalontai, Gábor, Veličković, Suzana, Veljković, Filip M., Vikić-Topić, Dražen, Kirin, Srećko I., "A crystallographic and solid-state NMR study of 1,4-disubstituted 2,5-diketopiperazines" in Journal of Molecular Structure, 1234 (2021):130157,
https://doi.org/10.1016/j.molstruc.2021.130157 . .
 1 1 1 1

#### Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at √s = 13 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9147
AB  - A search is presented for a Higgs boson that is produced via vector boson fusion and that decays to an undetected particle and an isolated photon. The search is performed by the CMS collaboration at the LHC, using a data set corresponding to an integrated luminosity of 130 fb −1, recorded at a center-of-mass energy of 13 TeV in 2016–2018. No significant excess of events above the expectation from the standard model background is found. The results are interpreted in the context of a theoretical model in which the undetected particle is a massless dark photon. An upper limit is set on the product of the cross section for production via vector boson fusion and the branching fraction for such a Higgs boson decay, as a function of the Higgs boson mass. For a Higgs boson mass of 125 GeV, assuming the standard model production rates, the observed (expected) 95% confidence level upper limit on the branching fraction is 3.5 (2.8)%. This is the first search for such decays in the vector boson fusion channel. Combination with a previous search for Higgs bosons produced in association with a Z boson results in an observed (expected) upper limit on the branching fraction of 2.9 (2.1)% at 95% confidence level.
T2  - Journal of High Energy Physics
T1  - Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at √s = 13 TeV
VL  - 2021
IS  - 3
SP  - 11
DO  - 10.1007/JHEP03(2021)011
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A search is presented for a Higgs boson that is produced via vector boson fusion and that decays to an undetected particle and an isolated photon. The search is performed by the CMS collaboration at the LHC, using a data set corresponding to an integrated luminosity of 130 fb −1, recorded at a center-of-mass energy of 13 TeV in 2016–2018. No significant excess of events above the expectation from the standard model background is found. The results are interpreted in the context of a theoretical model in which the undetected particle is a massless dark photon. An upper limit is set on the product of the cross section for production via vector boson fusion and the branching fraction for such a Higgs boson decay, as a function of the Higgs boson mass. For a Higgs boson mass of 125 GeV, assuming the standard model production rates, the observed (expected) 95% confidence level upper limit on the branching fraction is 3.5 (2.8)%. This is the first search for such decays in the vector boson fusion channel. Combination with a previous search for Higgs bosons produced in association with a Z boson results in an observed (expected) upper limit on the branching fraction of 2.9 (2.1)% at 95% confidence level.",
journal = "Journal of High Energy Physics",
title = "Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at √s = 13 TeV",
volume = "2021",
number = "3",
pages = "11",
doi = "10.1007/JHEP03(2021)011"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics, 2021(3), 11.
https://doi.org/10.1007/JHEP03(2021)011
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(3):11.
doi:10.1007/JHEP03(2021)011 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 3 (2021):11,
https://doi.org/10.1007/JHEP03(2021)011 . .

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

(2021)

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

#### Improving the photocatalytic activity of tetragonal BiVO4 with zircon-type structure through W doping; Ab initio calculations

(2021)

TY  - JOUR
AU  - Toprek, Dragan
AU  - Koteski, Vasil J.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9139
AB  - In this paper we studied the effects of the concentration of W as a doped atom on the V lattice site on the electronic and optical properties of tetragonal zircon-type BiVO4 structure. The calculations were performed by the first-principles density functional theory WIEN2k code. The doping strategy was targeting V atoms substituted by W atoms using the same lattice parameters as pure BiVO4 structure. To avoid the self interaction of impurities, the supercell method was adopted ensuring a sufficient length between the impurities in all directions. For all considered concentrations, the optical properties in the visible light range of λ≥550nm are improved over the undoped BiVO4. © 2021 Elsevier B.V.
T2  - Materials Chemistry and Physics
T1  - Improving the photocatalytic activity of tetragonal BiVO4 with zircon-type structure through W doping; Ab initio calculations
VL  - 264
SP  - 124439
DO  - 10.1016/j.matchemphys.2021.124439
ER  - 
@article{
author = "Toprek, Dragan and Koteski, Vasil J.",
year = "2021",
abstract = "In this paper we studied the effects of the concentration of W as a doped atom on the V lattice site on the electronic and optical properties of tetragonal zircon-type BiVO4 structure. The calculations were performed by the first-principles density functional theory WIEN2k code. The doping strategy was targeting V atoms substituted by W atoms using the same lattice parameters as pure BiVO4 structure. To avoid the self interaction of impurities, the supercell method was adopted ensuring a sufficient length between the impurities in all directions. For all considered concentrations, the optical properties in the visible light range of λ≥550nm are improved over the undoped BiVO4. © 2021 Elsevier B.V.",
journal = "Materials Chemistry and Physics",
title = "Improving the photocatalytic activity of tetragonal BiVO4 with zircon-type structure through W doping; Ab initio calculations",
volume = "264",
pages = "124439",
doi = "10.1016/j.matchemphys.2021.124439"
}
Toprek, D.,& Koteski, V. J.. (2021). Improving the photocatalytic activity of tetragonal BiVO4 with zircon-type structure through W doping; Ab initio calculations. in Materials Chemistry and Physics, 264, 124439.
https://doi.org/10.1016/j.matchemphys.2021.124439
Toprek D, Koteski VJ. Improving the photocatalytic activity of tetragonal BiVO4 with zircon-type structure through W doping; Ab initio calculations. in Materials Chemistry and Physics. 2021;264:124439.
doi:10.1016/j.matchemphys.2021.124439 .
Toprek, Dragan, Koteski, Vasil J., "Improving the photocatalytic activity of tetragonal BiVO4 with zircon-type structure through W doping; Ab initio calculations" in Materials Chemistry and Physics, 264 (2021):124439,
https://doi.org/10.1016/j.matchemphys.2021.124439 . .
 1 1

#### Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination

(2021)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Stojiljković, Dragoslava
AU  - Čeković, Ivana
AU  - Manić, Nebojša
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9138
AB  - This paper provides in-depth knowledge about the evolved gas analysis interpretation via newly proposed semi-quantitative approach, arising from thermogravimetric analysis (TGA) – mass spectrometry (MS) coupled measurements, for studying pyrolysis behavior of three kinds of biomass waste materials (spent coffee grounds, beech sawdust and wheat straw). TGA – MS coupling allows accurate correlation between molecular ion peak and fragment peaks to the corresponding mass loss rates from derivative thermogravimetry curves. Within proposed semi-quantitative analysis, MS spectra were interpreted through the comparative analysis of compounds fragments and of the compound itself, where the single atomic mass unit was identified by multiple compounds exhibition. It was shown that by this procedure which involves overlapping multiple curves supervising, the identification of gases in volatiles complex scheme becomes more simplified. By setting up semi-quantitative formulas, easy and reliable calculations of gaseous products yield and syngas energy capacities are possible to achieve. The H2/CO ratio derived from the proposed method for wood waste product (sawdust) is in an excellent agreement with H2/CO ratio for sawdust syngas production, in fuel reactor for biomass gasiﬁcation and H2 production. © 2021 Elsevier B.V.
T2  - Thermochimica Acta
T1  - Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination
VL  - 699
SP  - 178912
DO  - 10.1016/j.tca.2021.178912
ER  - 
@article{
author = "Radojević, Miloš and Janković, Bojan Ž. and Stojiljković, Dragoslava and Jovanović, Vladimir and Čeković, Ivana and Manić, Nebojša",
year = "2021",
abstract = "This paper provides in-depth knowledge about the evolved gas analysis interpretation via newly proposed semi-quantitative approach, arising from thermogravimetric analysis (TGA) – mass spectrometry (MS) coupled measurements, for studying pyrolysis behavior of three kinds of biomass waste materials (spent coffee grounds, beech sawdust and wheat straw). TGA – MS coupling allows accurate correlation between molecular ion peak and fragment peaks to the corresponding mass loss rates from derivative thermogravimetry curves. Within proposed semi-quantitative analysis, MS spectra were interpreted through the comparative analysis of compounds fragments and of the compound itself, where the single atomic mass unit was identified by multiple compounds exhibition. It was shown that by this procedure which involves overlapping multiple curves supervising, the identification of gases in volatiles complex scheme becomes more simplified. By setting up semi-quantitative formulas, easy and reliable calculations of gaseous products yield and syngas energy capacities are possible to achieve. The H2/CO ratio derived from the proposed method for wood waste product (sawdust) is in an excellent agreement with H2/CO ratio for sawdust syngas production, in fuel reactor for biomass gasiﬁcation and H2 production. © 2021 Elsevier B.V.",
journal = "Thermochimica Acta",
title = "Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination",
volume = "699",
pages = "178912",
doi = "10.1016/j.tca.2021.178912"
}
Radojević, M., Janković, B. Ž., Stojiljković, D., Jovanović, V., Čeković, I.,& Manić, N.. (2021). Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination. in Thermochimica Acta, 699, 178912.
https://doi.org/10.1016/j.tca.2021.178912
Radojević M, Janković BŽ, Stojiljković D, Jovanović V, Čeković I, Manić N. Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination. in Thermochimica Acta. 2021;699:178912.
doi:10.1016/j.tca.2021.178912 .
Radojević, Miloš, Janković, Bojan Ž., Stojiljković, Dragoslava, Jovanović, Vladimir, Čeković, Ivana, Manić, Nebojša, "Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination" in Thermochimica Acta, 699 (2021):178912,
https://doi.org/10.1016/j.tca.2021.178912 . .
 2 1 2