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1 CrossRef citations to date 0 Altmetric Articles Dose effect of gamma radiation on reliable voltage pulse measurement in nuclear fusion experiments

Kartalović, Nenad; Stanković, Koviljka; Nikezić, Dušan; Kovačević, Uroš

(2021)

TY  - JOUR
AU  - Kartalović, Nenad
AU  - Stanković, Koviljka
AU  - Nikezić, Dušan
AU  - Kovačević, Uroš
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9608
AB  - The effect of gamma radiation on the reliable measurement of single voltage pulses of electron beam injectors into plasma during fusion experiments is considered in the manuscript. For this purpose, a 10 GHz fast voltage divider was constructed. The high-voltage capacitor was a gas condenser, and the low-voltage capacitor was a parallel connection of 10 mica capacitors. It turned out that the received radiation dose corrects the transmission ratio since it aligns the frequency characteristic of the mica in the area of spatial charge. This phenomenon has been explained from both a positive and a negative aspect with an effect on the concrete application. The need for further research on this problem was also pointed out to establish a saturation dose and thus obtain a constant frequency characteristic of the mica. The interest in the fast-divider behavior in the neutron field is also highlighted. © 2020 Informa UK Limited, trading as Taylor & Francis Group.
T2  - Radiation Effects and Defects in Solids
T1  - 1 CrossRef citations to date 0 Altmetric Articles Dose effect of gamma radiation on reliable voltage pulse measurement in nuclear fusion experiments
VL  - 176
IS  - 3-4
SP  - 243
EP  - 254
DO  - 10.1080/10420150.2020.1812074
ER  - 
@article{
author = "Kartalović, Nenad and Stanković, Koviljka and Nikezić, Dušan and Kovačević, Uroš",
year = "2021",
abstract = "The effect of gamma radiation on the reliable measurement of single voltage pulses of electron beam injectors into plasma during fusion experiments is considered in the manuscript. For this purpose, a 10 GHz fast voltage divider was constructed. The high-voltage capacitor was a gas condenser, and the low-voltage capacitor was a parallel connection of 10 mica capacitors. It turned out that the received radiation dose corrects the transmission ratio since it aligns the frequency characteristic of the mica in the area of spatial charge. This phenomenon has been explained from both a positive and a negative aspect with an effect on the concrete application. The need for further research on this problem was also pointed out to establish a saturation dose and thus obtain a constant frequency characteristic of the mica. The interest in the fast-divider behavior in the neutron field is also highlighted. © 2020 Informa UK Limited, trading as Taylor & Francis Group.",
journal = "Radiation Effects and Defects in Solids",
title = "1 CrossRef citations to date 0 Altmetric Articles Dose effect of gamma radiation on reliable voltage pulse measurement in nuclear fusion experiments",
volume = "176",
number = "3-4",
pages = "243-254",
doi = "10.1080/10420150.2020.1812074"
}
Kartalović, N., Stanković, K., Nikezić, D.,& Kovačević, U.. (2021). 1 CrossRef citations to date 0 Altmetric Articles Dose effect of gamma radiation on reliable voltage pulse measurement in nuclear fusion experiments. in Radiation Effects and Defects in Solids, 176(3-4), 243-254.
https://doi.org/10.1080/10420150.2020.1812074
Kartalović N, Stanković K, Nikezić D, Kovačević U. 1 CrossRef citations to date 0 Altmetric Articles Dose effect of gamma radiation on reliable voltage pulse measurement in nuclear fusion experiments. in Radiation Effects and Defects in Solids. 2021;176(3-4):243-254.
doi:10.1080/10420150.2020.1812074 .
Kartalović, Nenad, Stanković, Koviljka, Nikezić, Dušan, Kovačević, Uroš, "1 CrossRef citations to date 0 Altmetric Articles Dose effect of gamma radiation on reliable voltage pulse measurement in nuclear fusion experiments" in Radiation Effects and Defects in Solids, 176, no. 3-4 (2021):243-254,
https://doi.org/10.1080/10420150.2020.1812074 . .
1

Investigation of a new way of synthesis for Nano crystallites of La2O2S & 1%Ln3+ (Ln = Pr, Eu, Tb, Dy, Er) doped La2O2S and study their structural and optical properties

Shah, Kevil; Ćirić, Aleksandar; Murthy, K.V.R.; Chakrabarty, B.S.

(2021)

TY  - JOUR
AU  - Shah, Kevil
AU  - Ćirić, Aleksandar
AU  - Murthy, K.V.R.
AU  - Chakrabarty, B.S.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9607
AB  - Nano-crystallite Lanthanum oxysulfide (La2O2S), a versatile compound with a wide range of applications, has been synthesized by the Solid State, Hydrothermal, and a novel Furnace Combustion technique. The last one limits the precursors, thus minimizing the resource usage, does not require passing of the H2S, CS2, or any of the hazardous gasses during the reaction and is less time-consuming while providing the maximum yield output. Thus, the novel Furnace Combustion method is marked for potential industrial use. The comparative XRD analysis showed the highest phase purity of the samples created by the Furnace Combustion technique, which was then employed for the synthesis of 1% Ln3+:La2O2S (Ln = Pr, Eu, Tb, Dy, Er) samples. The crystallite size was estimated by the Scherrer equation. The EDAX spectra proved the successful incorporation of doped elements. The samples showed absorption peaks in the UV region attributed to the excitation into 4f5d for Pr3+ and Tb3+, charge-transfer state for Eu3+, host absorption for Dy3+ and 4f levels for Er3+ doped samples. The emission spectra showed 4f - 4f transitions typical for the doped rare-earth ions. The bandgap energies are estimated by the Tauc plot. The 4.95 eV band-gap of pristine La2O2S is significantly dropped by doping. The refractive index values slightly increased by doping with rare-earth ions from 2.00 for the pure sample to ca. 2.20 for the doped samples. © 2020 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Investigation of a new way of synthesis for Nano crystallites of La2O2S & 1%Ln3+ (Ln = Pr, Eu, Tb, Dy, Er) doped La2O2S and study their structural and optical properties
VL  - 851
DO  - 10.1016/j.jallcom.2020.156725
ER  - 
@article{
author = "Shah, Kevil and Ćirić, Aleksandar and Murthy, K.V.R. and Chakrabarty, B.S.",
year = "2021",
abstract = "Nano-crystallite Lanthanum oxysulfide (La2O2S), a versatile compound with a wide range of applications, has been synthesized by the Solid State, Hydrothermal, and a novel Furnace Combustion technique. The last one limits the precursors, thus minimizing the resource usage, does not require passing of the H2S, CS2, or any of the hazardous gasses during the reaction and is less time-consuming while providing the maximum yield output. Thus, the novel Furnace Combustion method is marked for potential industrial use. The comparative XRD analysis showed the highest phase purity of the samples created by the Furnace Combustion technique, which was then employed for the synthesis of 1% Ln3+:La2O2S (Ln = Pr, Eu, Tb, Dy, Er) samples. The crystallite size was estimated by the Scherrer equation. The EDAX spectra proved the successful incorporation of doped elements. The samples showed absorption peaks in the UV region attributed to the excitation into 4f5d for Pr3+ and Tb3+, charge-transfer state for Eu3+, host absorption for Dy3+ and 4f levels for Er3+ doped samples. The emission spectra showed 4f - 4f transitions typical for the doped rare-earth ions. The bandgap energies are estimated by the Tauc plot. The 4.95 eV band-gap of pristine La2O2S is significantly dropped by doping. The refractive index values slightly increased by doping with rare-earth ions from 2.00 for the pure sample to ca. 2.20 for the doped samples. © 2020 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Investigation of a new way of synthesis for Nano crystallites of La2O2S & 1%Ln3+ (Ln = Pr, Eu, Tb, Dy, Er) doped La2O2S and study their structural and optical properties",
volume = "851",
doi = "10.1016/j.jallcom.2020.156725"
}
Shah, K., Ćirić, A., Murthy, K.V.R.,& Chakrabarty, B.S.. (2021). Investigation of a new way of synthesis for Nano crystallites of La2O2S & 1%Ln3+ (Ln = Pr, Eu, Tb, Dy, Er) doped La2O2S and study their structural and optical properties. in Journal of Alloys and Compounds, 851.
https://doi.org/10.1016/j.jallcom.2020.156725
Shah K, Ćirić A, Murthy K, Chakrabarty B. Investigation of a new way of synthesis for Nano crystallites of La2O2S & 1%Ln3+ (Ln = Pr, Eu, Tb, Dy, Er) doped La2O2S and study their structural and optical properties. in Journal of Alloys and Compounds. 2021;851.
doi:10.1016/j.jallcom.2020.156725 .
Shah, Kevil, Ćirić, Aleksandar, Murthy, K.V.R., Chakrabarty, B.S., "Investigation of a new way of synthesis for Nano crystallites of La2O2S & 1%Ln3+ (Ln = Pr, Eu, Tb, Dy, Er) doped La2O2S and study their structural and optical properties" in Journal of Alloys and Compounds, 851 (2021),
https://doi.org/10.1016/j.jallcom.2020.156725 . .
3

Barjaktarević, Dragana; Međo, Bojan; Štefane, Primož; Gubeljak, Nenad; Cvijović-Alagić, Ivana; Đokić, Veljko; Rakin, Marko

(2021)

TY  - JOUR
AU  - Barjaktarević, Dragana
AU  - Međo, Bojan
AU  - Štefane, Primož
AU  - Gubeljak, Nenad
AU  - Cvijović-Alagić, Ivana
AU  - Đokić, Veljko
AU  - Rakin, Marko
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9606
AB  - Severe plastic deformation (SPD) is a popular group of techniques applied to achieve the nanostructuring of the metallic biomaterials and improvement of their mechanical characteristics. One of the most commonly used SPD methods is the high-pressure torsion (HPT) technique which enables the obtainment of the microstructure with small grains and high strength. In the present study, the influence of the plastic deformation and surface modification treatment on the tensile and corrosion properties of the Ti–13Nb–13Zr (wt%) alloy is investigated. In that purpose, the coarse-grained (CG) Ti–13Nb–13Zr (TNZ) alloy was subjected to the HPT processing by applying a pressure of 4.1 GPa with a rotational speed of 0.2 rpm and 5 revolutions at room temperature to obtain the ultrafine-grained (UFG) microstructure. The alloy microstructure before and after HPT processing was analysed using the scanning electron microscopy (SEM) and the X-ray diffraction (XRD). The homogeneity of the UFG TNZ alloy was determined by microhardness testing and microscopic observations. The nanotubular oxide layer on the surface of the TNZ alloy, both in CG and UFG condition, was formed by electrochemical anodization in 1 M H3PO4 + NaF electrolyte for 90 min. SEM analysis was used to characterise the morphology of the anodized surfaces, while energy dispersive spectroscopy was applied to determine the chemical composition of the nanostructured layers formed at the alloy surfaces. Mechanical properties of the TNZ alloy, before and after HPT processing and electrochemical anodization, were determined by tensile testing. After tensile testing, the fractographic analysis was conducted to identify the fracture mechanisms. The potentiodynamic polarization technique was used to determine the corrosion resistance of the alloy before and after plastic deformation and surface modification treatment. The obtained results showed that the alloy is reasonably homogeneous after the HPT processing. The XRD analyses reviled the presence of α′ and β phases in the CG TNZ alloy microstructure, while the additional ω phase was detected in the microstructure of the UFG TNZ alloy. The HPT obtained alloy exhibits higher hardness and improved tensile properties than the alloy in the as-received CG condition, while the electrochemical anodization leads to a decrease of its mechanical properties. Both CG and UFG alloys show excellent corrosion stability in Ringer’s solution. Moreover, electrochemical anodization leads to a decrease or an increase of the corrosion resistance of these materials, depending on the morphology of the formed nanotubular surface layers. The results indicate that the anodized CG TNZ alloy is characterized by a lower modulus of elasticity and better corrosion resistance properties than the anodized UFG TNZ alloy. Graphic Abstract: [Figure not available: see fulltext.] © 2020, The Korean Institute of Metals and Materials.
T2  - Metals and Materials International
VL  - 27
IS  - 9
SP  - 3325
EP  - 3341
DO  - 10.1007/s12540-020-00837-z
ER  - 
@article{
author = "Barjaktarević, Dragana and Međo, Bojan and Štefane, Primož and Gubeljak, Nenad and Cvijović-Alagić, Ivana and Đokić, Veljko and Rakin, Marko",
year = "2021",
abstract = "Severe plastic deformation (SPD) is a popular group of techniques applied to achieve the nanostructuring of the metallic biomaterials and improvement of their mechanical characteristics. One of the most commonly used SPD methods is the high-pressure torsion (HPT) technique which enables the obtainment of the microstructure with small grains and high strength. In the present study, the influence of the plastic deformation and surface modification treatment on the tensile and corrosion properties of the Ti–13Nb–13Zr (wt%) alloy is investigated. In that purpose, the coarse-grained (CG) Ti–13Nb–13Zr (TNZ) alloy was subjected to the HPT processing by applying a pressure of 4.1 GPa with a rotational speed of 0.2 rpm and 5 revolutions at room temperature to obtain the ultrafine-grained (UFG) microstructure. The alloy microstructure before and after HPT processing was analysed using the scanning electron microscopy (SEM) and the X-ray diffraction (XRD). The homogeneity of the UFG TNZ alloy was determined by microhardness testing and microscopic observations. The nanotubular oxide layer on the surface of the TNZ alloy, both in CG and UFG condition, was formed by electrochemical anodization in 1 M H3PO4 + NaF electrolyte for 90 min. SEM analysis was used to characterise the morphology of the anodized surfaces, while energy dispersive spectroscopy was applied to determine the chemical composition of the nanostructured layers formed at the alloy surfaces. Mechanical properties of the TNZ alloy, before and after HPT processing and electrochemical anodization, were determined by tensile testing. After tensile testing, the fractographic analysis was conducted to identify the fracture mechanisms. The potentiodynamic polarization technique was used to determine the corrosion resistance of the alloy before and after plastic deformation and surface modification treatment. The obtained results showed that the alloy is reasonably homogeneous after the HPT processing. The XRD analyses reviled the presence of α′ and β phases in the CG TNZ alloy microstructure, while the additional ω phase was detected in the microstructure of the UFG TNZ alloy. The HPT obtained alloy exhibits higher hardness and improved tensile properties than the alloy in the as-received CG condition, while the electrochemical anodization leads to a decrease of its mechanical properties. Both CG and UFG alloys show excellent corrosion stability in Ringer’s solution. Moreover, electrochemical anodization leads to a decrease or an increase of the corrosion resistance of these materials, depending on the morphology of the formed nanotubular surface layers. The results indicate that the anodized CG TNZ alloy is characterized by a lower modulus of elasticity and better corrosion resistance properties than the anodized UFG TNZ alloy. Graphic Abstract: [Figure not available: see fulltext.] © 2020, The Korean Institute of Metals and Materials.",
journal = "Metals and Materials International",
volume = "27",
number = "9",
pages = "3325-3341",
doi = "10.1007/s12540-020-00837-z"
}
Barjaktarević, D., Međo, B., Štefane, P., Gubeljak, N., Cvijović-Alagić, I., Đokić, V.,& Rakin, M.. (2021). in Metals and Materials International, 27(9), 3325-3341.
https://doi.org/10.1007/s12540-020-00837-z
Barjaktarević D, Međo B, Štefane P, Gubeljak N, Cvijović-Alagić I, Đokić V, Rakin M. in Metals and Materials International. 2021;27(9):3325-3341.
doi:10.1007/s12540-020-00837-z .
Barjaktarević, Dragana, Međo, Bojan, Štefane, Primož, Gubeljak, Nenad, Cvijović-Alagić, Ivana, Đokić, Veljko, Rakin, Marko, in Metals and Materials International, 27, no. 9 (2021):3325-3341,
https://doi.org/10.1007/s12540-020-00837-z . .
4
4

High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings

Tomić, Nataša Z.; Marinković, Aleksandar D.; Balanč, Bojana; Obradović, Vera; Pavlović, Vladimir; Manojlović, Vaso; Vuksanović, Marija M.

(2021)

TY  - JOUR
AU  - Tomić, Nataša Z.
AU  - Marinković, Aleksandar D.
AU  - Balanč, Bojana
AU  - Obradović, Vera
AU  - Pavlović, Vladimir
AU  - Manojlović, Vaso
AU  - Vuksanović, Marija M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9517
AB  - Intelligent pedestrian crossings were made with the aim to increase pedestrian safety at poorly lit locations. New technologies include the design of polymer materials that have high performance by optimizing properties such as compression, tensile and impact strengths, wear resistance, hardness and transparency. The desired properties are set up to face the demands of a heavy daily traffic load and enable the functionality. Laminate material consists of the epoxy composite reinforced with silica (SiO2) derived from rice husk waste and a protective thermoplastic polyurethane layer. The top layer of the laminate material is a transparent thermoplastic polyurethane (TPU) serving as a protective layer with high wear resistance and good adhesion with epoxy composite. Silica obtained from rice husk waste was used in reinforcing of the epoxide in order to improve the mechanical properties, diffuse the light, improve the adhesion with TPU and decrease the production costs. Micro-Vickers hardness of the epoxy composite was increased by 70% with the addition of 15 wt% of SiO2. Impact energy of the epoxy composite with 15 wt% of SiO2 was increased by 272.9% after adding the TPU layer. Compressive strength of the epoxy resin is improved by 16.2% by reinforcement with 15 wt% of SiO2, while the laminate composite material showed 207% higher compressive strength than the commonly used asphalt pavement. Moreover, the addition of 15 wt% of SiO2 improved the adhesion between epoxy composite and TPU layer (11.2%). Thus, obtained laminated material made of the epoxy composite with 15 wt% of SiO2 (obtained from rice husk waste) and TPU598 showed mechanical properties and LED light transmission/diffusion appropriate for application in the intelligent pedestrian crossings. © 2021, Iran Polymer and Petrochemical Institute.
T2  - Iranian Polymer Journal (English Edition)
T1  - High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings
VL  - 30
IS  - 3
SP  - 319
EP  - 330
DO  - 10.1007/s13726-020-00894-6
ER  - 
@article{
author = "Tomić, Nataša Z. and Marinković, Aleksandar D. and Balanč, Bojana and Obradović, Vera and Pavlović, Vladimir and Manojlović, Vaso and Vuksanović, Marija M.",
year = "2021",
abstract = "Intelligent pedestrian crossings were made with the aim to increase pedestrian safety at poorly lit locations. New technologies include the design of polymer materials that have high performance by optimizing properties such as compression, tensile and impact strengths, wear resistance, hardness and transparency. The desired properties are set up to face the demands of a heavy daily traffic load and enable the functionality. Laminate material consists of the epoxy composite reinforced with silica (SiO2) derived from rice husk waste and a protective thermoplastic polyurethane layer. The top layer of the laminate material is a transparent thermoplastic polyurethane (TPU) serving as a protective layer with high wear resistance and good adhesion with epoxy composite. Silica obtained from rice husk waste was used in reinforcing of the epoxide in order to improve the mechanical properties, diffuse the light, improve the adhesion with TPU and decrease the production costs. Micro-Vickers hardness of the epoxy composite was increased by 70% with the addition of 15 wt% of SiO2. Impact energy of the epoxy composite with 15 wt% of SiO2 was increased by 272.9% after adding the TPU layer. Compressive strength of the epoxy resin is improved by 16.2% by reinforcement with 15 wt% of SiO2, while the laminate composite material showed 207% higher compressive strength than the commonly used asphalt pavement. Moreover, the addition of 15 wt% of SiO2 improved the adhesion between epoxy composite and TPU layer (11.2%). Thus, obtained laminated material made of the epoxy composite with 15 wt% of SiO2 (obtained from rice husk waste) and TPU598 showed mechanical properties and LED light transmission/diffusion appropriate for application in the intelligent pedestrian crossings. © 2021, Iran Polymer and Petrochemical Institute.",
journal = "Iranian Polymer Journal (English Edition)",
title = "High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings",
volume = "30",
number = "3",
pages = "319-330",
doi = "10.1007/s13726-020-00894-6"
}
Tomić, N. Z., Marinković, A. D., Balanč, B., Obradović, V., Pavlović, V., Manojlović, V.,& Vuksanović, M. M.. (2021). High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings. in Iranian Polymer Journal (English Edition), 30(3), 319-330.
https://doi.org/10.1007/s13726-020-00894-6
Tomić NZ, Marinković AD, Balanč B, Obradović V, Pavlović V, Manojlović V, Vuksanović MM. High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings. in Iranian Polymer Journal (English Edition). 2021;30(3):319-330.
doi:10.1007/s13726-020-00894-6 .
Tomić, Nataša Z., Marinković, Aleksandar D., Balanč, Bojana, Obradović, Vera, Pavlović, Vladimir, Manojlović, Vaso, Vuksanović, Marija M., "High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings" in Iranian Polymer Journal (English Edition), 30, no. 3 (2021):319-330,
https://doi.org/10.1007/s13726-020-00894-6 . .
1

Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites

Jelić, Aleksandra; Marinković, Aleksandar D.; Sekulić, Milica; Dikić, Stefan; Ugrinović, Vukašin; Pavlović, Vladimir; Putić, Slaviša

(2021)

TY  - JOUR
AU  - Jelić, Aleksandra
AU  - Marinković, Aleksandar D.
AU  - Sekulić, Milica
AU  - Dikić, Stefan
AU  - Ugrinović, Vukašin
AU  - Pavlović, Vladimir
AU  - Putić, Slaviša
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9562
AB  - In this study, halloysite nanotubes (HNT) were modified by: 3-glycidyloxypropyltrimethoxysilane (GLYMO), 3-aminopropyltrimethoxysilane (APTES), and 2,2-Bis[4-(glycidyloxy) phenyl] propane (DGEBA), and incorporated in the epoxy resin matrix to enhance its mechanical properties. The HNT/epoxy nanocomposite materials were prepared by mixing different ratios of untreated/treated HNT with neat epoxy resin. Characterization of untreated/treated HNT was performed by Fourier-transformation infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). The quantity of grafted molecules and thermal stability of newly synthesized materials were determined by thermogravimetric (TG) and derivative thermogravimetric (DTG) analysis. Tensile properties of newly synthesized materials were compared, and scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis of the fracture surfaces were performed. Incorporation of APTES modified HNT (HNTAPT) and two-step modification APTES followed by DGEBA (HNTAPTDG) has increased the tensile strength of the nanocomposite materials up to 72% and 61%, and strain at break up to 1082% and 1216%, respectively, compared to neat epoxy. It was concluded that the modification of HNT contributed to the enhancement of the dispersion and the cross-linking in the epoxy resin matrix. © 2021 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites
VL  - 42
IS  - 5
SP  - 2180
EP  - 2192
DO  - 10.1002/pc.25967
ER  - 
@article{
author = "Jelić, Aleksandra and Marinković, Aleksandar D. and Sekulić, Milica and Dikić, Stefan and Ugrinović, Vukašin and Pavlović, Vladimir and Putić, Slaviša",
year = "2021",
abstract = "In this study, halloysite nanotubes (HNT) were modified by: 3-glycidyloxypropyltrimethoxysilane (GLYMO), 3-aminopropyltrimethoxysilane (APTES), and 2,2-Bis[4-(glycidyloxy) phenyl] propane (DGEBA), and incorporated in the epoxy resin matrix to enhance its mechanical properties. The HNT/epoxy nanocomposite materials were prepared by mixing different ratios of untreated/treated HNT with neat epoxy resin. Characterization of untreated/treated HNT was performed by Fourier-transformation infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). The quantity of grafted molecules and thermal stability of newly synthesized materials were determined by thermogravimetric (TG) and derivative thermogravimetric (DTG) analysis. Tensile properties of newly synthesized materials were compared, and scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis of the fracture surfaces were performed. Incorporation of APTES modified HNT (HNTAPT) and two-step modification APTES followed by DGEBA (HNTAPTDG) has increased the tensile strength of the nanocomposite materials up to 72% and 61%, and strain at break up to 1082% and 1216%, respectively, compared to neat epoxy. It was concluded that the modification of HNT contributed to the enhancement of the dispersion and the cross-linking in the epoxy resin matrix. © 2021 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites",
volume = "42",
number = "5",
pages = "2180-2192",
doi = "10.1002/pc.25967"
}
Jelić, A., Marinković, A. D., Sekulić, M., Dikić, S., Ugrinović, V., Pavlović, V.,& Putić, S.. (2021). Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites. in Polymer Composites, 42(5), 2180-2192.
https://doi.org/10.1002/pc.25967
Jelić A, Marinković AD, Sekulić M, Dikić S, Ugrinović V, Pavlović V, Putić S. Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites. in Polymer Composites. 2021;42(5):2180-2192.
doi:10.1002/pc.25967 .
Jelić, Aleksandra, Marinković, Aleksandar D., Sekulić, Milica, Dikić, Stefan, Ugrinović, Vukašin, Pavlović, Vladimir, Putić, Slaviša, "Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites" in Polymer Composites, 42, no. 5 (2021):2180-2192,
https://doi.org/10.1002/pc.25967 . .
1
1

On scaling of Schrödinger equation and some results for heavy quarks mesons

Fabiano, Nicola; Radenović, Stojan

(2021)

TY  - JOUR
AU  - Fabiano, Nicola
AU  - Radenović, Stojan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9593
AB  - We consider the scaling of the Schrödinger equation in order to explicitly compute the energy density levels for a specific class of potentials. The resulting eigenvalues spectrum is compared to the heavy quarks mesons spectroscopy, showing a fair agreement with experimental data for the J/ps and, for the heavier case Y, an excellent agreement with the experimental data.
T2  - Bulletin of Natural Sciences Research
T1  - On scaling of Schrödinger equation and some results for heavy quarks mesons
VL  - 11
IS  - 1
SP  - 49
EP  - 53
DO  - 10.5937/bnsr11-31433
ER  - 
@article{
author = "Fabiano, Nicola and Radenović, Stojan",
year = "2021",
abstract = "We consider the scaling of the Schrödinger equation in order to explicitly compute the energy density levels for a specific class of potentials. The resulting eigenvalues spectrum is compared to the heavy quarks mesons spectroscopy, showing a fair agreement with experimental data for the J/ps and, for the heavier case Y, an excellent agreement with the experimental data.",
journal = "Bulletin of Natural Sciences Research",
title = "On scaling of Schrödinger equation and some results for heavy quarks mesons",
volume = "11",
number = "1",
pages = "49-53",
doi = "10.5937/bnsr11-31433"
}
Fabiano, N.,& Radenović, S.. (2021). On scaling of Schrödinger equation and some results for heavy quarks mesons. in Bulletin of Natural Sciences Research, 11(1), 49-53.
https://doi.org/10.5937/bnsr11-31433
Fabiano N, Radenović S. On scaling of Schrödinger equation and some results for heavy quarks mesons. in Bulletin of Natural Sciences Research. 2021;11(1):49-53.
doi:10.5937/bnsr11-31433 .
Fabiano, Nicola, Radenović, Stojan, "On scaling of Schrödinger equation and some results for heavy quarks mesons" in Bulletin of Natural Sciences Research, 11, no. 1 (2021):49-53,
https://doi.org/10.5937/bnsr11-31433 . .

Improvement of Neural Networks Applied to Photoacoustic Signals of Semiconductors with Added Noise

Đorđević, Кatarina Lj.; Galović, Slobodanka; Jordović-Pavlović, Miroslava; Ćojbašić, Žarko; Markushev, Dragan D.

(2021)

TY  - JOUR
AU  - Đorđević, Кatarina Lj.
AU  - Galović, Slobodanka
AU  - Jordović-Pavlović, Miroslava
AU  - Ćojbašić, Žarko
AU  - Markushev, Dragan D.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9581
AB  - This paper provides an overview of the characteristics of different neural networks trained on the same theoretical database of n-type silicon photoacoustic signals. By adding different levels of random Gaussian noise to the training input signals, two important goals were achieved. First, the optimal level of noise was found which significantly shortens the training networks with minimal loss of accuracy of its predictions. Second, the termination criteria of networks training were activated to avoid overtraining, i.e., networks generalization was performed. A networks efficiency analysis was performed on both theoretical and experimental photoacoustic signals, resulting in a selection of one neural network that is optimal to the performance requirements of the real experiment. It is indicated that the application of such trained networks is more reliable on thicker semiconductors, whose thickness is greater than the value of the carrier diffusion length in the investigated sample. © 2020, Springer Nature B.V.
T2  - Silicon
T1  - Improvement of Neural Networks Applied to Photoacoustic Signals of Semiconductors with Added Noise
VL  - 13
IS  - 9
SP  - 2959
EP  - 2969
DO  - 10.1007/s12633-020-00606-y
ER  - 
@article{
author = "Đorđević, Кatarina Lj. and Galović, Slobodanka and Jordović-Pavlović, Miroslava and Ćojbašić, Žarko and Markushev, Dragan D.",
year = "2021",
abstract = "This paper provides an overview of the characteristics of different neural networks trained on the same theoretical database of n-type silicon photoacoustic signals. By adding different levels of random Gaussian noise to the training input signals, two important goals were achieved. First, the optimal level of noise was found which significantly shortens the training networks with minimal loss of accuracy of its predictions. Second, the termination criteria of networks training were activated to avoid overtraining, i.e., networks generalization was performed. A networks efficiency analysis was performed on both theoretical and experimental photoacoustic signals, resulting in a selection of one neural network that is optimal to the performance requirements of the real experiment. It is indicated that the application of such trained networks is more reliable on thicker semiconductors, whose thickness is greater than the value of the carrier diffusion length in the investigated sample. © 2020, Springer Nature B.V.",
journal = "Silicon",
title = "Improvement of Neural Networks Applied to Photoacoustic Signals of Semiconductors with Added Noise",
volume = "13",
number = "9",
pages = "2959-2969",
doi = "10.1007/s12633-020-00606-y"
}
Đorđević, К. Lj., Galović, S., Jordović-Pavlović, M., Ćojbašić, Ž.,& Markushev, D. D.. (2021). Improvement of Neural Networks Applied to Photoacoustic Signals of Semiconductors with Added Noise. in Silicon, 13(9), 2959-2969.
https://doi.org/10.1007/s12633-020-00606-y
Đorđević КL, Galović S, Jordović-Pavlović M, Ćojbašić Ž, Markushev DD. Improvement of Neural Networks Applied to Photoacoustic Signals of Semiconductors with Added Noise. in Silicon. 2021;13(9):2959-2969.
doi:10.1007/s12633-020-00606-y .
Đorđević, Кatarina Lj., Galović, Slobodanka, Jordović-Pavlović, Miroslava, Ćojbašić, Žarko, Markushev, Dragan D., "Improvement of Neural Networks Applied to Photoacoustic Signals of Semiconductors with Added Noise" in Silicon, 13, no. 9 (2021):2959-2969,
https://doi.org/10.1007/s12633-020-00606-y . .

Antidepressants- and antipsychotics-induced hepatotoxicity

Todorović Vukotić, Nevena; Đorđević, Jelena; Pejić, Snežana; Đorđević, Neda O.; Pajović, Snežana B.

(2021)

TY  - JOUR
AU  - Todorović Vukotić, Nevena
AU  - Đorđević, Jelena
AU  - Pejić, Snežana
AU  - Đorđević, Neda O.
AU  - Pajović, Snežana B.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9078
AB  - Drug-induced liver injury (DILI) is a serious health burden. It has diverse clinical presentations that can escalate to acute liver failure. The worldwide increase in the use of psychotropic drugs, their long-term use on a daily basis, common comorbidities of psychiatric and metabolic disorders, and polypharmacy in psychiatric patients increase the incidence of psychotropics-induced DILI. During the last 2 decades, hepatotoxicity of various antidepressants (ADs) and antipsychotics (APs) received much attention. Comprehensive review and discussion of accumulated literature data concerning this issue are performed in this study, as hepatotoxic effects of most commonly prescribed ADs and APs are classified, described, and discussed. The review focuses on ADs and APs characterized by the risk of causing liver damage and highlights the ones found to cause life-threatening or severe DILI cases. In parallel, an overview of hepatic oxidative stress, inflammation, and steatosis underlying DILI is provided, followed by extensive review and discussion of the pathophysiology of AD- and AP-induced DILI revealed in case reports, and animal and in vitro studies. The consequences of some ADs and APs ability to affect drug-metabolizing enzymes and therefore provoke drug–drug interactions are also addressed. Continuous collecting of data on drugs, mechanisms, and risk factors for DILI, as well as critical data reviewing, is crucial for easier DILI diagnosis and more efficient risk assessment of AD- and AP-induced DILI. Higher awareness of ADs and APs hepatotoxicity is the prerequisite for their safe use and optimal dosing. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
T2  - Archives of Toxicology
T1  - Antidepressants- and antipsychotics-induced hepatotoxicity
VL  - 95
IS  - 3
SP  - 767
EP  - 789
DO  - 10.1007/s00204-020-02963-4
ER  - 
@article{
author = "Todorović Vukotić, Nevena and Đorđević, Jelena and Pejić, Snežana and Đorđević, Neda O. and Pajović, Snežana B.",
year = "2021",
abstract = "Drug-induced liver injury (DILI) is a serious health burden. It has diverse clinical presentations that can escalate to acute liver failure. The worldwide increase in the use of psychotropic drugs, their long-term use on a daily basis, common comorbidities of psychiatric and metabolic disorders, and polypharmacy in psychiatric patients increase the incidence of psychotropics-induced DILI. During the last 2 decades, hepatotoxicity of various antidepressants (ADs) and antipsychotics (APs) received much attention. Comprehensive review and discussion of accumulated literature data concerning this issue are performed in this study, as hepatotoxic effects of most commonly prescribed ADs and APs are classified, described, and discussed. The review focuses on ADs and APs characterized by the risk of causing liver damage and highlights the ones found to cause life-threatening or severe DILI cases. In parallel, an overview of hepatic oxidative stress, inflammation, and steatosis underlying DILI is provided, followed by extensive review and discussion of the pathophysiology of AD- and AP-induced DILI revealed in case reports, and animal and in vitro studies. The consequences of some ADs and APs ability to affect drug-metabolizing enzymes and therefore provoke drug–drug interactions are also addressed. Continuous collecting of data on drugs, mechanisms, and risk factors for DILI, as well as critical data reviewing, is crucial for easier DILI diagnosis and more efficient risk assessment of AD- and AP-induced DILI. Higher awareness of ADs and APs hepatotoxicity is the prerequisite for their safe use and optimal dosing. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.",
journal = "Archives of Toxicology",
title = "Antidepressants- and antipsychotics-induced hepatotoxicity",
volume = "95",
number = "3",
pages = "767-789",
doi = "10.1007/s00204-020-02963-4"
}
Todorović Vukotić, N., Đorđević, J., Pejić, S., Đorđević, N. O.,& Pajović, S. B.. (2021). Antidepressants- and antipsychotics-induced hepatotoxicity. in Archives of Toxicology, 95(3), 767-789.
https://doi.org/10.1007/s00204-020-02963-4
Todorović Vukotić N, Đorđević J, Pejić S, Đorđević NO, Pajović SB. Antidepressants- and antipsychotics-induced hepatotoxicity. in Archives of Toxicology. 2021;95(3):767-789.
doi:10.1007/s00204-020-02963-4 .
Todorović Vukotić, Nevena, Đorđević, Jelena, Pejić, Snežana, Đorđević, Neda O., Pajović, Snežana B., "Antidepressants- and antipsychotics-induced hepatotoxicity" in Archives of Toxicology, 95, no. 3 (2021):767-789,
https://doi.org/10.1007/s00204-020-02963-4 . .
3
3
1
2

Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values

Vujčić, Ivica; Mašić, Slobodan

(2021)

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9559
AB  - Aflatoxins are natural mycotoxins that mainly occur in areas with humid climates. One of the methods for the successful elimination of aflatoxins is gamma radiation treatment. In this paper, gamma radiation's influence on the content of aflatoxins in hemp flour and microbiological properties (total number of microorganisms, molds, and potentially pathogenic bacteria) and nutritional values were investigated. The artificial radioactive isotope of cobalt Co-60, with a dose rate of 10 kGy/hr, was used as the radiation source. Using high-performance liquid chromatography, we determined that a dose of 4 kGy was sufficient to eliminate aflatoxins below the acceptable value. An irradiation dose of 8 kGy was sufficient to eliminate the total number of microorganisms and molds. Also, a treatment of 3 kGy is enough to remove all bacteria. Finally, it was shown that gamma irradiation does not affect the nutritional value of the product. Novelty Impact Statement: Hemp flour is rich in healthy fats, magnesium, fiber, and protein. However, it may be contaminated with aflatoxins, microorganisms, molds, and potentially pathogenic bacteria. Gamma irradiation is an effective method of food preservation that guarantees food decontamination and protection of nutrients. In this paper, an adequate dose of gamma radiation to preserve hemp flour has been established. © 2021 Wiley Periodicals LLC.
T2  - Journal of Food Processing and Preservation
T1  - Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values
VL  - 45
IS  - 4
DO  - 10.1111/jfpp.15314
ER  - 
@article{
author = "Vujčić, Ivica and Mašić, Slobodan",
year = "2021",
abstract = "Aflatoxins are natural mycotoxins that mainly occur in areas with humid climates. One of the methods for the successful elimination of aflatoxins is gamma radiation treatment. In this paper, gamma radiation's influence on the content of aflatoxins in hemp flour and microbiological properties (total number of microorganisms, molds, and potentially pathogenic bacteria) and nutritional values were investigated. The artificial radioactive isotope of cobalt Co-60, with a dose rate of 10 kGy/hr, was used as the radiation source. Using high-performance liquid chromatography, we determined that a dose of 4 kGy was sufficient to eliminate aflatoxins below the acceptable value. An irradiation dose of 8 kGy was sufficient to eliminate the total number of microorganisms and molds. Also, a treatment of 3 kGy is enough to remove all bacteria. Finally, it was shown that gamma irradiation does not affect the nutritional value of the product. Novelty Impact Statement: Hemp flour is rich in healthy fats, magnesium, fiber, and protein. However, it may be contaminated with aflatoxins, microorganisms, molds, and potentially pathogenic bacteria. Gamma irradiation is an effective method of food preservation that guarantees food decontamination and protection of nutrients. In this paper, an adequate dose of gamma radiation to preserve hemp flour has been established. © 2021 Wiley Periodicals LLC.",
journal = "Journal of Food Processing and Preservation",
title = "Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values",
volume = "45",
number = "4",
doi = "10.1111/jfpp.15314"
}
Vujčić, I.,& Mašić, S.. (2021). Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values. in Journal of Food Processing and Preservation, 45(4).
https://doi.org/10.1111/jfpp.15314
Vujčić I, Mašić S. Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values. in Journal of Food Processing and Preservation. 2021;45(4).
doi:10.1111/jfpp.15314 .
Vujčić, Ivica, Mašić, Slobodan, "Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values" in Journal of Food Processing and Preservation, 45, no. 4 (2021),
https://doi.org/10.1111/jfpp.15314 . .
2
1

Preparation and validation of laboratory radioactive standards for experimental calibration in gamma ray spectrometry

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

(2021)

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana M.
AU  - Krneta-Nikolić, Jelena D.
AU  - Pantelić, Gordana K.
AU  - Rajačić, Milica
AU  - Janković, Marija M.
AU  - Sarap, Nataša
AU  - Todorović, Dragana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9136
AB  - The procedure of radioactive standards preparation by spiking selected matrices with a certified mixture of radionuclides and its validation is presented in this paper. The uncertainty budget of standard total activity was elaborated in details. The experimentally obtained efficiency curves, as well as comparison with the curves obtained by the efficiency transfer, are presented. Additionally, in order to confirm claimed homogeneity of prepared standard bulk materials, the efficiency versus density dependence for the individual gamma ray energies was checked for the same geometries and the results are presented. The results of the participation in recent IAEA PT scheme are discussed also. © 2021 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - Preparation and validation of laboratory radioactive standards for experimental calibration in gamma ray spectrometry
VL  - 183
SP  - 109407
DO  - 10.1016/j.radphyschem.2021.109407
ER  - 
@article{
author = "Vukanac, Ivana and Đurašević, Mirjana M. and Krneta-Nikolić, Jelena D. and Pantelić, Gordana K. and Rajačić, Milica and Janković, Marija M. and Sarap, Nataša and Todorović, Dragana",
year = "2021",
abstract = "The procedure of radioactive standards preparation by spiking selected matrices with a certified mixture of radionuclides and its validation is presented in this paper. The uncertainty budget of standard total activity was elaborated in details. The experimentally obtained efficiency curves, as well as comparison with the curves obtained by the efficiency transfer, are presented. Additionally, in order to confirm claimed homogeneity of prepared standard bulk materials, the efficiency versus density dependence for the individual gamma ray energies was checked for the same geometries and the results are presented. The results of the participation in recent IAEA PT scheme are discussed also. © 2021 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Preparation and validation of laboratory radioactive standards for experimental calibration in gamma ray spectrometry",
volume = "183",
pages = "109407",
doi = "10.1016/j.radphyschem.2021.109407"
}
Vukanac, I., Đurašević, M. M., Krneta-Nikolić, J. D., Pantelić, G. K., Rajačić, M., Janković, M. M., Sarap, N.,& Todorović, D.. (2021). Preparation and validation of laboratory radioactive standards for experimental calibration in gamma ray spectrometry. in Radiation Physics and Chemistry, 183, 109407.
https://doi.org/10.1016/j.radphyschem.2021.109407
Vukanac I, Đurašević MM, Krneta-Nikolić JD, Pantelić GK, Rajačić M, Janković MM, Sarap N, Todorović D. Preparation and validation of laboratory radioactive standards for experimental calibration in gamma ray spectrometry. in Radiation Physics and Chemistry. 2021;183:109407.
doi:10.1016/j.radphyschem.2021.109407 .
Vukanac, Ivana, Đurašević, Mirjana M., Krneta-Nikolić, Jelena D., Pantelić, Gordana K., Rajačić, Milica, Janković, Marija M., Sarap, Nataša, Todorović, Dragana, "Preparation and validation of laboratory radioactive standards for experimental calibration in gamma ray spectrometry" in Radiation Physics and Chemistry, 183 (2021):109407,
https://doi.org/10.1016/j.radphyschem.2021.109407 . .

Effects of water pretreatment on properties of pellets made from beech particles

Popović, Jasmina; Popović, Mlađan; Điporović-Momčilović, Milanka; Prahin, Ana; Dodevski, Vladimir; Gavrilović-Grmuša, Ivana

(2021)

TY  - JOUR
AU  - Popović, Jasmina
AU  - Popović, Mlađan
AU  - Điporović-Momčilović, Milanka
AU  - Prahin, Ana
AU  - Dodevski, Vladimir
AU  - Gavrilović-Grmuša, Ivana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9157
AB  - Particles of beech wood were treated with hot water at the temperature of 150oC, during 60 min, prior to the pelleting process. The applied hot water pretreatment affected the chemical composition and heating value of particles. Two groups of pellets, designated as PT 10 and PT 20, were produced from treated beech particles, with the moisture content of particles being 10.5 and 20.5 %, respectively. Pellets from nontreated beech particles (PNT) served as controls to assess the hot water pretreatment effects on the pellet properties. Both, the applied pretreatment, and the particle moisture content, affected properties of the obtained pellets. The heating value of PT 10 ad PT 20 pellets has increased for ~6 and 1 %, respectively. The mineral (ash) content in treated pellets decreased for about 24 % in comparison to that in PNT pellets. In addition, the bulk (apparent) density of pellets has increased for 21 % (PT 10) and 10 % (PT 20), as a consequence of the hot water pretreatment of particles. The specific density of PT 10 pellets was for 16 % higher, while the equilibrium moisture content (after conditioning at RH 68 % and 20.1oC) was for about 32 % lower in comparison to the respective properties of PNT pellets.
T2  - Hemijska industrija
T1  - Effects of water pretreatment on properties of pellets made from beech particles
VL  - 75
IS  - 1
SP  - 39
EP  - 51
DO  - 10.2298/HEMIN191224007P
ER  - 
@article{
author = "Popović, Jasmina and Popović, Mlađan and Điporović-Momčilović, Milanka and Prahin, Ana and Dodevski, Vladimir and Gavrilović-Grmuša, Ivana",
year = "2021",
abstract = "Particles of beech wood were treated with hot water at the temperature of 150oC, during 60 min, prior to the pelleting process. The applied hot water pretreatment affected the chemical composition and heating value of particles. Two groups of pellets, designated as PT 10 and PT 20, were produced from treated beech particles, with the moisture content of particles being 10.5 and 20.5 %, respectively. Pellets from nontreated beech particles (PNT) served as controls to assess the hot water pretreatment effects on the pellet properties. Both, the applied pretreatment, and the particle moisture content, affected properties of the obtained pellets. The heating value of PT 10 ad PT 20 pellets has increased for ~6 and 1 %, respectively. The mineral (ash) content in treated pellets decreased for about 24 % in comparison to that in PNT pellets. In addition, the bulk (apparent) density of pellets has increased for 21 % (PT 10) and 10 % (PT 20), as a consequence of the hot water pretreatment of particles. The specific density of PT 10 pellets was for 16 % higher, while the equilibrium moisture content (after conditioning at RH 68 % and 20.1oC) was for about 32 % lower in comparison to the respective properties of PNT pellets.",
journal = "Hemijska industrija",
title = "Effects of water pretreatment on properties of pellets made from beech particles",
volume = "75",
number = "1",
pages = "39-51",
doi = "10.2298/HEMIN191224007P"
}
Popović, J., Popović, M., Điporović-Momčilović, M., Prahin, A., Dodevski, V.,& Gavrilović-Grmuša, I.. (2021). Effects of water pretreatment on properties of pellets made from beech particles. in Hemijska industrija, 75(1), 39-51.
https://doi.org/10.2298/HEMIN191224007P
Popović J, Popović M, Điporović-Momčilović M, Prahin A, Dodevski V, Gavrilović-Grmuša I. Effects of water pretreatment on properties of pellets made from beech particles. in Hemijska industrija. 2021;75(1):39-51.
doi:10.2298/HEMIN191224007P .
Popović, Jasmina, Popović, Mlađan, Điporović-Momčilović, Milanka, Prahin, Ana, Dodevski, Vladimir, Gavrilović-Grmuša, Ivana, "Effects of water pretreatment on properties of pellets made from beech particles" in Hemijska industrija, 75, no. 1 (2021):39-51,
https://doi.org/10.2298/HEMIN191224007P . .

Cell wall response to UV radiation in needles of Picea omorika

Mitrović, Aleksandra Lj.; Simonović-Radosavljević, Jasna; Prokopijević, Miloš; Spasojević, Dragica; Kovačević, Jovana; Prodanović, Olivera; Todorović, Bratislav; Matović, Branko; Stanković, Mira; Maksimović, Vuk; Mutavdžić, Dragosav; Skočić, Miloš; Pešić, Mirjana; Prokić, Ljiljana; Radotić, Ksenija

(2021)

TY  - JOUR
AU  - Mitrović, Aleksandra Lj.
AU  - Simonović-Radosavljević, Jasna
AU  - Prokopijević, Miloš
AU  - Spasojević, Dragica
AU  - Kovačević, Jovana
AU  - Prodanović, Olivera
AU  - Todorović, Bratislav
AU  - Matović, Branko
AU  - Stanković, Mira
AU  - Maksimović, Vuk
AU  - Mutavdžić, Dragosav
AU  - Skočić, Miloš
AU  - Pešić, Mirjana
AU  - Prokić, Ljiljana
AU  - Radotić, Ksenija
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9129
AB  - The UV-B represents the minor fraction of the solar spectrum, while UV-C is not contained in natural solar radiation, but both radiation types can cause damaging effects in plants. Cell walls (CWs) are one of the targets for external stressors. Juvenile P. omorika trees were treated either with 21 day-high doses UV-B or with 7 day- UV-C in open-top chambers. Using spectroscopic and biochemical techniques, it was shown that the response to UV radiation includes numerous modifications in needle CW structure: relative content of xylan, xyloglucan, lignin and cellulose decreased; cellulose crystallinity changed; yield of lignin monomers with stronger connection of C[dbnd]C in side chain with the ring increased; re-distribution of inter- and intra-polymer H-bonds occurred. The recovery was mediated by an increase in the activities and changes in isoform profiles of CW bound covalent peroxidases (POD) and polyphenol oxidases (PO) (UV–B), and ionic POD and covalent PO (UV–C). A connection between activities of specific POD/PO isoforms and phenolic species (m- and p-coumaric acid, pinoresinol and cinnamic acid derivatives) was demonstrated, and supported by changes in the sRNA profile. In vivo fluorometry showed phenolics accumulation in needle epidermal CWs. These results imply transversal connections between polymers and changed mechanical properties of needle CW as a response to UV. The CW alterations enabled maintenance of physiological functions, as indicated by the preserved chlorophyll content and/or organization. The current study provides evidence that in conifers, needle CW response to both UV-B and UV-C includes biochemical modifications and structural remodeling. © 2021 Elsevier Masson SAS
T2  - Plant Physiology and Biochemistry
T1  - Cell wall response to UV radiation in needles of Picea omorika
VL  - 161
SP  - 176
EP  - 190
DO  - 10.1016/j.plaphy.2021.02.007
ER  - 
@article{
author = "Mitrović, Aleksandra Lj. and Simonović-Radosavljević, Jasna and Prokopijević, Miloš and Spasojević, Dragica and Kovačević, Jovana and Prodanović, Olivera and Todorović, Bratislav and Matović, Branko and Stanković, Mira and Maksimović, Vuk and Mutavdžić, Dragosav and Skočić, Miloš and Pešić, Mirjana and Prokić, Ljiljana and Radotić, Ksenija",
year = "2021",
abstract = "The UV-B represents the minor fraction of the solar spectrum, while UV-C is not contained in natural solar radiation, but both radiation types can cause damaging effects in plants. Cell walls (CWs) are one of the targets for external stressors. Juvenile P. omorika trees were treated either with 21 day-high doses UV-B or with 7 day- UV-C in open-top chambers. Using spectroscopic and biochemical techniques, it was shown that the response to UV radiation includes numerous modifications in needle CW structure: relative content of xylan, xyloglucan, lignin and cellulose decreased; cellulose crystallinity changed; yield of lignin monomers with stronger connection of C[dbnd]C in side chain with the ring increased; re-distribution of inter- and intra-polymer H-bonds occurred. The recovery was mediated by an increase in the activities and changes in isoform profiles of CW bound covalent peroxidases (POD) and polyphenol oxidases (PO) (UV–B), and ionic POD and covalent PO (UV–C). A connection between activities of specific POD/PO isoforms and phenolic species (m- and p-coumaric acid, pinoresinol and cinnamic acid derivatives) was demonstrated, and supported by changes in the sRNA profile. In vivo fluorometry showed phenolics accumulation in needle epidermal CWs. These results imply transversal connections between polymers and changed mechanical properties of needle CW as a response to UV. The CW alterations enabled maintenance of physiological functions, as indicated by the preserved chlorophyll content and/or organization. The current study provides evidence that in conifers, needle CW response to both UV-B and UV-C includes biochemical modifications and structural remodeling. © 2021 Elsevier Masson SAS",
journal = "Plant Physiology and Biochemistry",
title = "Cell wall response to UV radiation in needles of Picea omorika",
volume = "161",
pages = "176-190",
doi = "10.1016/j.plaphy.2021.02.007"
}
Mitrović, A. Lj., Simonović-Radosavljević, J., Prokopijević, M., Spasojević, D., Kovačević, J., Prodanović, O., Todorović, B., Matović, B., Stanković, M., Maksimović, V., Mutavdžić, D., Skočić, M., Pešić, M., Prokić, L.,& Radotić, K.. (2021). Cell wall response to UV radiation in needles of Picea omorika. in Plant Physiology and Biochemistry, 161, 176-190.
https://doi.org/10.1016/j.plaphy.2021.02.007
Mitrović AL, Simonović-Radosavljević J, Prokopijević M, Spasojević D, Kovačević J, Prodanović O, Todorović B, Matović B, Stanković M, Maksimović V, Mutavdžić D, Skočić M, Pešić M, Prokić L, Radotić K. Cell wall response to UV radiation in needles of Picea omorika. in Plant Physiology and Biochemistry. 2021;161:176-190.
doi:10.1016/j.plaphy.2021.02.007 .
Mitrović, Aleksandra Lj., Simonović-Radosavljević, Jasna, Prokopijević, Miloš, Spasojević, Dragica, Kovačević, Jovana, Prodanović, Olivera, Todorović, Bratislav, Matović, Branko, Stanković, Mira, Maksimović, Vuk, Mutavdžić, Dragosav, Skočić, Miloš, Pešić, Mirjana, Prokić, Ljiljana, Radotić, Ksenija, "Cell wall response to UV radiation in needles of Picea omorika" in Plant Physiology and Biochemistry, 161 (2021):176-190,
https://doi.org/10.1016/j.plaphy.2021.02.007 . .
1

Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering

Matović, Branko; Maletaškić, Jelena; Prikhna, Tatiana; Urbanovich, Vladimir; Girman, Vladimir; Lisnichuk, Maksym; Todorović, Bratislav; Yoshida, Kutsami; Cvijović-Alagić, Ivana

(2021)

TY  - JOUR
AU  - Matović, Branko
AU  - Maletaškić, Jelena
AU  - Prikhna, Tatiana
AU  - Urbanovich, Vladimir
AU  - Girman, Vladimir
AU  - Lisnichuk, Maksym
AU  - Todorović, Bratislav
AU  - Yoshida, Kutsami
AU  - Cvijović-Alagić, Ivana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9405
AB  - Additive-free boron carbide (B4C) – silicon carbide (SiC) ceramic composites with different B4C and β-SiC powders ratio were densified using the high-pressure “anvil-type with hollows” apparatus at 1500 °C under a pressure of 4 GPa for 60 s in air. The effect of starting powders ratio on the composites sintering behavior, relative density, microstructural development, and thermomechanical properties was studied. The sintered samples hardness was found to be in the range from 24 to 31 GPa. The thermal conductivity measurements, conducted in the temperature range from room temperature to 1000 °C, showed that the thermal diffusivity of sintered samples was between 6 and 9.5 mm2/s whereas the thermal conductivity was in the range from 16 to 28 W/(m K). The results of this study show that the high-pressure sintering can be a very effective low-temperature densification method for the obtainment of additive-free B4C - β-SiC ceramic composites. © 2021 Elsevier Ltd
T2  - Journal of the European Ceramic Society
T1  - Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering
VL  - 41
IS  - 9
SP  - 4755
EP  - 4760
DO  - 10.1016/j.jeurceramsoc.2021.03.047
ER  - 
@article{
author = "Matović, Branko and Maletaškić, Jelena and Prikhna, Tatiana and Urbanovich, Vladimir and Girman, Vladimir and Lisnichuk, Maksym and Todorović, Bratislav and Yoshida, Kutsami and Cvijović-Alagić, Ivana",
year = "2021",
abstract = "Additive-free boron carbide (B4C) – silicon carbide (SiC) ceramic composites with different B4C and β-SiC powders ratio were densified using the high-pressure “anvil-type with hollows” apparatus at 1500 °C under a pressure of 4 GPa for 60 s in air. The effect of starting powders ratio on the composites sintering behavior, relative density, microstructural development, and thermomechanical properties was studied. The sintered samples hardness was found to be in the range from 24 to 31 GPa. The thermal conductivity measurements, conducted in the temperature range from room temperature to 1000 °C, showed that the thermal diffusivity of sintered samples was between 6 and 9.5 mm2/s whereas the thermal conductivity was in the range from 16 to 28 W/(m K). The results of this study show that the high-pressure sintering can be a very effective low-temperature densification method for the obtainment of additive-free B4C - β-SiC ceramic composites. © 2021 Elsevier Ltd",
journal = "Journal of the European Ceramic Society",
title = "Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering",
volume = "41",
number = "9",
pages = "4755-4760",
doi = "10.1016/j.jeurceramsoc.2021.03.047"
}
Matović, B., Maletaškić, J., Prikhna, T., Urbanovich, V., Girman, V., Lisnichuk, M., Todorović, B., Yoshida, K.,& Cvijović-Alagić, I.. (2021). Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering. in Journal of the European Ceramic Society, 41(9), 4755-4760.
https://doi.org/10.1016/j.jeurceramsoc.2021.03.047
Matović B, Maletaškić J, Prikhna T, Urbanovich V, Girman V, Lisnichuk M, Todorović B, Yoshida K, Cvijović-Alagić I. Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering. in Journal of the European Ceramic Society. 2021;41(9):4755-4760.
doi:10.1016/j.jeurceramsoc.2021.03.047 .
Matović, Branko, Maletaškić, Jelena, Prikhna, Tatiana, Urbanovich, Vladimir, Girman, Vladimir, Lisnichuk, Maksym, Todorović, Bratislav, Yoshida, Kutsami, Cvijović-Alagić, Ivana, "Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering" in Journal of the European Ceramic Society, 41, no. 9 (2021):4755-4760,
https://doi.org/10.1016/j.jeurceramsoc.2021.03.047 . .
2
2
1

Adsorption of anthraquinone dye AB111 from aqueous solution using synthesized alumina-iron oxide doped particles

Stupar, Stevan; Vuksanović, Marija M.; Totovski, Ljubica; Jančić-Heinemann, Radmila; Mijin, Dušan

(2021)

TY  - JOUR
AU  - Stupar, Stevan
AU  - Vuksanović, Marija M.
AU  - Totovski, Ljubica
AU  - Jančić-Heinemann, Radmila
AU  - Mijin, Dušan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9411
AB  - Adsorption of anthraquinone dye Acid Blue 111 by alumina-iron oxide doped particles prepared by sol-gel method from aqueous solutions was studied. The adsorbent morphology was revealed by FESEM and the crystallographic phase is analyzed by the XRD technique. The effect of adsorbate and adsorbent concentrations, pH value, type of adsorbent and thermodynamic parameters on dye removal by adsorption was studied. The change of dye concentration during the adsorbtion was followed using the UV-Visible spectrophotometer. The change of the adsorbent surface before and after dye removal was observed using the Fourier Transformation-infrared spectroscopy (FT-IR). The adsorption kinetics is in accordance with the pseudo-second-order kinetics model. The Langmuir and Freundlich adsorption isotherm models were used to describe the adsorption process. The thermodynamic study of dye adsorption proves the process is spontaneous with exothermic nature. © 2021 Authors. Published by association for ETRAN Society.
T2  - Science of Sintering
T1  - Adsorption of anthraquinone dye AB111 from aqueous solution using synthesized alumina-iron oxide doped particles
VL  - 53
IS  - 1
SP  - 91
EP  - 117
DO  - 10.2298/SOS2101091S
ER  - 
@article{
author = "Stupar, Stevan and Vuksanović, Marija M. and Totovski, Ljubica and Jančić-Heinemann, Radmila and Mijin, Dušan",
year = "2021",
abstract = "Adsorption of anthraquinone dye Acid Blue 111 by alumina-iron oxide doped particles prepared by sol-gel method from aqueous solutions was studied. The adsorbent morphology was revealed by FESEM and the crystallographic phase is analyzed by the XRD technique. The effect of adsorbate and adsorbent concentrations, pH value, type of adsorbent and thermodynamic parameters on dye removal by adsorption was studied. The change of dye concentration during the adsorbtion was followed using the UV-Visible spectrophotometer. The change of the adsorbent surface before and after dye removal was observed using the Fourier Transformation-infrared spectroscopy (FT-IR). The adsorption kinetics is in accordance with the pseudo-second-order kinetics model. The Langmuir and Freundlich adsorption isotherm models were used to describe the adsorption process. The thermodynamic study of dye adsorption proves the process is spontaneous with exothermic nature. © 2021 Authors. Published by association for ETRAN Society.",
journal = "Science of Sintering",
title = "Adsorption of anthraquinone dye AB111 from aqueous solution using synthesized alumina-iron oxide doped particles",
volume = "53",
number = "1",
pages = "91-117",
doi = "10.2298/SOS2101091S"
}
Stupar, S., Vuksanović, M. M., Totovski, L., Jančić-Heinemann, R.,& Mijin, D.. (2021). Adsorption of anthraquinone dye AB111 from aqueous solution using synthesized alumina-iron oxide doped particles. in Science of Sintering, 53(1), 91-117.
https://doi.org/10.2298/SOS2101091S
Stupar S, Vuksanović MM, Totovski L, Jančić-Heinemann R, Mijin D. Adsorption of anthraquinone dye AB111 from aqueous solution using synthesized alumina-iron oxide doped particles. in Science of Sintering. 2021;53(1):91-117.
doi:10.2298/SOS2101091S .
Stupar, Stevan, Vuksanović, Marija M., Totovski, Ljubica, Jančić-Heinemann, Radmila, Mijin, Dušan, "Adsorption of anthraquinone dye AB111 from aqueous solution using synthesized alumina-iron oxide doped particles" in Science of Sintering, 53, no. 1 (2021):91-117,
https://doi.org/10.2298/SOS2101091S . .

Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing

Vuksanović, Marija M.; Gajić-Kvaščev, Maja; Volkov-Husović, Tatjana; Jančić-Heinemann, Radmila

(2021)

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Gajić-Kvaščev, Maja
AU  - Volkov-Husović, Tatjana
AU  - Jančić-Heinemann, Radmila
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9162
AB  - Morphology and development of surface damage of alumina-based materials, resulting from cavitation erosion is studied in this paper. Two series of samples were prepared: samples without fibers and those with the addition of 2 wt % of ceramic fibers. The form of surface damage is considered to be the information carrier for the analysis of the resistance of materials to cavitation and the quality of this information is determined. The surface of the samples was monitored in defined time intervals in order to prepare the digitized image suitable for further analysis using image analysis software. The principal component analysis was applied to examine the appearance of certain morphological characteristics depending on the behavior of the material during cavitation erosion. It was concluded that the addition of ceramic fibers gained in importance after a long time of cavitation erosion, while during a starting period of time the difference in the morphology of the damage is not very observable. © 2021 Elsevier B.V.
T2  - Wear
T1  - Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing
VL  - 474-475
SP  - 203877
DO  - 10.1016/j.wear.2021.203877
ER  - 
@article{
author = "Vuksanović, Marija M. and Gajić-Kvaščev, Maja and Volkov-Husović, Tatjana and Jančić-Heinemann, Radmila",
year = "2021",
abstract = "Morphology and development of surface damage of alumina-based materials, resulting from cavitation erosion is studied in this paper. Two series of samples were prepared: samples without fibers and those with the addition of 2 wt % of ceramic fibers. The form of surface damage is considered to be the information carrier for the analysis of the resistance of materials to cavitation and the quality of this information is determined. The surface of the samples was monitored in defined time intervals in order to prepare the digitized image suitable for further analysis using image analysis software. The principal component analysis was applied to examine the appearance of certain morphological characteristics depending on the behavior of the material during cavitation erosion. It was concluded that the addition of ceramic fibers gained in importance after a long time of cavitation erosion, while during a starting period of time the difference in the morphology of the damage is not very observable. © 2021 Elsevier B.V.",
journal = "Wear",
title = "Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing",
volume = "474-475",
pages = "203877",
doi = "10.1016/j.wear.2021.203877"
}
Vuksanović, M. M., Gajić-Kvaščev, M., Volkov-Husović, T.,& Jančić-Heinemann, R.. (2021). Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing. in Wear, 474-475, 203877.
https://doi.org/10.1016/j.wear.2021.203877
Vuksanović MM, Gajić-Kvaščev M, Volkov-Husović T, Jančić-Heinemann R. Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing. in Wear. 2021;474-475:203877.
doi:10.1016/j.wear.2021.203877 .
Vuksanović, Marija M., Gajić-Kvaščev, Maja, Volkov-Husović, Tatjana, Jančić-Heinemann, Radmila, "Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing" in Wear, 474-475 (2021):203877,
https://doi.org/10.1016/j.wear.2021.203877 . .

Association study of rs7799039, rs1137101 and rs8192678 gene variants with disease susceptibility/severity and corresponding LEP, LEPR and PGC1A gene expression in multiple sclerosis

Kolić, Ivana; Stojković, Ljiljana S.; Stanković, Aleksandra; Stefanović, Milan; Dinčić, Evica; Živković, Maja

(2021)

TY  - JOUR
AU  - Kolić, Ivana
AU  - Stojković, Ljiljana S.
AU  - Stanković, Aleksandra
AU  - Stefanović, Milan
AU  - Dinčić, Evica
AU  - Živković, Maja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9542
AB  - Background: Leptin (LEP), leptin receptor (LEPR) and peroxisome proliferator-activated receptor gamma co-activator 1-alpha (PGC1A) are involved in the pathogenesis of multiple sclerosis (MS) by affecting the inflammatory response and reactive oxygen species production. LEP rs7799039 and LEPR rs1137101 genetic variants modify the serum LEP levels and PGC1A rs8192678 alters the PGC1A activity. The study objective was to explore the associations of these variants with susceptibility to MS, disease course/clinical parameters and also with peripheral blood mononuclear cell expression of the target genes and plasma LEP concentrations, in the study subjects. Methods: The study groups included 528 patients with MS and 429 controls. TaqMan® assays were used for genotyping and gene expression quantification. The Chi-square, parametric and nonparametric tests and simple/multiple logistic regression were performed for the statistical analysis of data. Results: A multiple logistic regression model including all three investigated variants, applied to patients (RRMS + SPMS) and controls, showed that PGC1A rs8192678 minor allele had an increased risk for the occurrence of disease, with OR (95%CI) = 1,32 (1,01–1,73), P = 0,04. Between-effect of gender and LEPR variant on the multiple sclerosis severity score (MSSS) was identified (P = 0,005). In male patients (relapsing-remitting and secondary progressive), LEPR minor allele carriers had increased MSSS (GG + AG vs AA, median (minimum–maximum) = 5,38 (0,64–9,88) vs 4,27 (0,78–9,63); P = 0,01, Padj = 0,03). In relapsing-remitting patients LEP rs7799039 affected the LEP gene expression (P = 0,006; Padj = 0,04). Conclusion: The current findings implicate an impact of investigated genetic variants on the pathogenesis of MS. © 2021 Elsevier B.V.
T2  - Gene
T1  - Association study of rs7799039, rs1137101 and rs8192678 gene variants with disease susceptibility/severity and corresponding LEP, LEPR and PGC1A gene expression in multiple sclerosis
VL  - 774
SP  - 145422
DO  - 10.1016/j.gene.2021.145422
ER  - 
@article{
author = "Kolić, Ivana and Stojković, Ljiljana S. and Stanković, Aleksandra and Stefanović, Milan and Dinčić, Evica and Živković, Maja",
year = "2021",
abstract = "Background: Leptin (LEP), leptin receptor (LEPR) and peroxisome proliferator-activated receptor gamma co-activator 1-alpha (PGC1A) are involved in the pathogenesis of multiple sclerosis (MS) by affecting the inflammatory response and reactive oxygen species production. LEP rs7799039 and LEPR rs1137101 genetic variants modify the serum LEP levels and PGC1A rs8192678 alters the PGC1A activity. The study objective was to explore the associations of these variants with susceptibility to MS, disease course/clinical parameters and also with peripheral blood mononuclear cell expression of the target genes and plasma LEP concentrations, in the study subjects. Methods: The study groups included 528 patients with MS and 429 controls. TaqMan® assays were used for genotyping and gene expression quantification. The Chi-square, parametric and nonparametric tests and simple/multiple logistic regression were performed for the statistical analysis of data. Results: A multiple logistic regression model including all three investigated variants, applied to patients (RRMS + SPMS) and controls, showed that PGC1A rs8192678 minor allele had an increased risk for the occurrence of disease, with OR (95%CI) = 1,32 (1,01–1,73), P = 0,04. Between-effect of gender and LEPR variant on the multiple sclerosis severity score (MSSS) was identified (P = 0,005). In male patients (relapsing-remitting and secondary progressive), LEPR minor allele carriers had increased MSSS (GG + AG vs AA, median (minimum–maximum) = 5,38 (0,64–9,88) vs 4,27 (0,78–9,63); P = 0,01, Padj = 0,03). In relapsing-remitting patients LEP rs7799039 affected the LEP gene expression (P = 0,006; Padj = 0,04). Conclusion: The current findings implicate an impact of investigated genetic variants on the pathogenesis of MS. © 2021 Elsevier B.V.",
journal = "Gene",
title = "Association study of rs7799039, rs1137101 and rs8192678 gene variants with disease susceptibility/severity and corresponding LEP, LEPR and PGC1A gene expression in multiple sclerosis",
volume = "774",
pages = "145422",
doi = "10.1016/j.gene.2021.145422"
}
Kolić, I., Stojković, L. S., Stanković, A., Stefanović, M., Dinčić, E.,& Živković, M.. (2021). Association study of rs7799039, rs1137101 and rs8192678 gene variants with disease susceptibility/severity and corresponding LEP, LEPR and PGC1A gene expression in multiple sclerosis. in Gene, 774, 145422.
https://doi.org/10.1016/j.gene.2021.145422
Kolić I, Stojković LS, Stanković A, Stefanović M, Dinčić E, Živković M. Association study of rs7799039, rs1137101 and rs8192678 gene variants with disease susceptibility/severity and corresponding LEP, LEPR and PGC1A gene expression in multiple sclerosis. in Gene. 2021;774:145422.
doi:10.1016/j.gene.2021.145422 .
Kolić, Ivana, Stojković, Ljiljana S., Stanković, Aleksandra, Stefanović, Milan, Dinčić, Evica, Živković, Maja, "Association study of rs7799039, rs1137101 and rs8192678 gene variants with disease susceptibility/severity and corresponding LEP, LEPR and PGC1A gene expression in multiple sclerosis" in Gene, 774 (2021):145422,
https://doi.org/10.1016/j.gene.2021.145422 . .
1

Influence of low-spin Co3+ for high-spin Fe3+ substitution on the structural, magnetic, optical and catalytic properties of hematite (α-Fe2O3) nanorods

Popov, Nina; Bošković, Marko; Perović, Marija M.; Németh, Zoltán; Wang, Junhu; Kuang, Zhichong; Reissner, Michael; Kuzmann, Ernő; Homonnay, Zoltán; Kubuki, Shiro; Marciuš, Marijan; Ristić, Mira; Musić, Svetozar; Stanković, Dalibor M.; Krehula, Stjepko

(2021)

TY  - JOUR
AU  - Popov, Nina
AU  - Bošković, Marko
AU  - Perović, Marija M.
AU  - Németh, Zoltán
AU  - Wang, Junhu
AU  - Kuang, Zhichong
AU  - Reissner, Michael
AU  - Kuzmann, Ernő
AU  - Homonnay, Zoltán
AU  - Kubuki, Shiro
AU  - Marciuš, Marijan
AU  - Ristić, Mira
AU  - Musić, Svetozar
AU  - Stanković, Dalibor M.
AU  - Krehula, Stjepko
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9516
AB  - Pure hematite nanorods and very long and thin cobalt-doped hematite nanorods (nanoneedles) were prepared by a combined precipitation and annealing method. The influence of the level of cobalt doping on different properties of hematite nanorods was investigated. Incorporation of cobalt in the form of low-spin Co3+ ions into the structure of hematite by substitution for high-spin Fe3+ ions was proved by determination of a significant unit cell contraction by powder X-ray diffraction (PXRD) and characteristic positions of the absorption edge in X-ray absorption near edge structure (XANES) spectra and peaks in X-ray emission (XES) spectra. Cobalt doping caused a gradual elongation and thinning of hematite nanorods – very long and thin 1D nanoparticles (nanoneedles) were formed in the presence of 10 and 12 mol% Co. Magnetic measurements showed a strong increase in low-temperature remanent magnetization and coercivity upon cobalt doping, as well as a disappearance of the Morin transition, which was also confirmed by Mössbauer spectroscopy. Cobalt doping significantly affected optical properties of hematite nanorods – absorption in the visible and NIR ranges increased, which was accompanied by narrowing of the optical band gap. Compared with pure hematite nanorods cobalt-doped hematite nanoneedles showed a significantly better electrocatalytic activity for the oxygen evolution reaction (OER). © 2020 Elsevier Ltd
T2  - Journal of Physics and Chemistry of Solids
T1  - Influence of low-spin Co3+ for high-spin Fe3+ substitution on the structural, magnetic, optical and catalytic properties of hematite (α-Fe2O3) nanorods
VL  - 152
SP  - 109929
DO  - 10.1016/j.jpcs.2020.109929
ER  - 
@article{
author = "Popov, Nina and Bošković, Marko and Perović, Marija M. and Németh, Zoltán and Wang, Junhu and Kuang, Zhichong and Reissner, Michael and Kuzmann, Ernő and Homonnay, Zoltán and Kubuki, Shiro and Marciuš, Marijan and Ristić, Mira and Musić, Svetozar and Stanković, Dalibor M. and Krehula, Stjepko",
year = "2021",
abstract = "Pure hematite nanorods and very long and thin cobalt-doped hematite nanorods (nanoneedles) were prepared by a combined precipitation and annealing method. The influence of the level of cobalt doping on different properties of hematite nanorods was investigated. Incorporation of cobalt in the form of low-spin Co3+ ions into the structure of hematite by substitution for high-spin Fe3+ ions was proved by determination of a significant unit cell contraction by powder X-ray diffraction (PXRD) and characteristic positions of the absorption edge in X-ray absorption near edge structure (XANES) spectra and peaks in X-ray emission (XES) spectra. Cobalt doping caused a gradual elongation and thinning of hematite nanorods – very long and thin 1D nanoparticles (nanoneedles) were formed in the presence of 10 and 12 mol% Co. Magnetic measurements showed a strong increase in low-temperature remanent magnetization and coercivity upon cobalt doping, as well as a disappearance of the Morin transition, which was also confirmed by Mössbauer spectroscopy. Cobalt doping significantly affected optical properties of hematite nanorods – absorption in the visible and NIR ranges increased, which was accompanied by narrowing of the optical band gap. Compared with pure hematite nanorods cobalt-doped hematite nanoneedles showed a significantly better electrocatalytic activity for the oxygen evolution reaction (OER). © 2020 Elsevier Ltd",
journal = "Journal of Physics and Chemistry of Solids",
title = "Influence of low-spin Co3+ for high-spin Fe3+ substitution on the structural, magnetic, optical and catalytic properties of hematite (α-Fe2O3) nanorods",
volume = "152",
pages = "109929",
doi = "10.1016/j.jpcs.2020.109929"
}
Popov, N., Bošković, M., Perović, M. M., Németh, Z., Wang, J., Kuang, Z., Reissner, M., Kuzmann, E., Homonnay, Z., Kubuki, S., Marciuš, M., Ristić, M., Musić, S., Stanković, D. M.,& Krehula, S.. (2021). Influence of low-spin Co3+ for high-spin Fe3+ substitution on the structural, magnetic, optical and catalytic properties of hematite (α-Fe2O3) nanorods. in Journal of Physics and Chemistry of Solids, 152, 109929.
https://doi.org/10.1016/j.jpcs.2020.109929
Popov N, Bošković M, Perović MM, Németh Z, Wang J, Kuang Z, Reissner M, Kuzmann E, Homonnay Z, Kubuki S, Marciuš M, Ristić M, Musić S, Stanković DM, Krehula S. Influence of low-spin Co3+ for high-spin Fe3+ substitution on the structural, magnetic, optical and catalytic properties of hematite (α-Fe2O3) nanorods. in Journal of Physics and Chemistry of Solids. 2021;152:109929.
doi:10.1016/j.jpcs.2020.109929 .
Popov, Nina, Bošković, Marko, Perović, Marija M., Németh, Zoltán, Wang, Junhu, Kuang, Zhichong, Reissner, Michael, Kuzmann, Ernő, Homonnay, Zoltán, Kubuki, Shiro, Marciuš, Marijan, Ristić, Mira, Musić, Svetozar, Stanković, Dalibor M., Krehula, Stjepko, "Influence of low-spin Co3+ for high-spin Fe3+ substitution on the structural, magnetic, optical and catalytic properties of hematite (α-Fe2O3) nanorods" in Journal of Physics and Chemistry of Solids, 152 (2021):109929,
https://doi.org/10.1016/j.jpcs.2020.109929 . .
2
1
1

Inverse problem solving in semiconductor photoacoustics by neural networks

Đorđević, Katarina Lj.; Markushev, Dragan D.; Ćojbašić, Žarko M.; Galović, Slobodanka

(2021)

TY  - JOUR
AU  - Đorđević, Katarina Lj.
AU  - Markushev, Dragan D.
AU  - Ćojbašić, Žarko M.
AU  - Galović, Slobodanka
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9075
AB  - We developed a method of inverse problem solving in semiconductor photoacoustics based on neural networks application. Simple structured neural networks, trained on a large set of data obtained by the well–known theoretical models in the 20 Hz–20 kHz modulation frequency range, are applied to determine thermal diffusivity, coefficient of linear expansion and thickness of n–type silicon samples, using undistorted experimental photoacoustic signals. The efficiency of the neural networks was tested depending on the type of input data, showing the best performances in the case when signal amplitudes and phases are simultaneously presented to the network. Real–time parameter prediction is achieved together with high accuracy and reliability allowing one to perform the full characterization of a sample in the frequency domain.
T2  - Inverse Problems in Science and Engineering
T1  - Inverse problem solving in semiconductor photoacoustics by neural networks
VL  - 29
IS  - 2
SP  - 248
EP  - 262
DO  - 10.1080/17415977.2020.1787405
ER  - 
@article{
author = "Đorđević, Katarina Lj. and Markushev, Dragan D. and Ćojbašić, Žarko M. and Galović, Slobodanka",
year = "2021",
abstract = "We developed a method of inverse problem solving in semiconductor photoacoustics based on neural networks application. Simple structured neural networks, trained on a large set of data obtained by the well–known theoretical models in the 20 Hz–20 kHz modulation frequency range, are applied to determine thermal diffusivity, coefficient of linear expansion and thickness of n–type silicon samples, using undistorted experimental photoacoustic signals. The efficiency of the neural networks was tested depending on the type of input data, showing the best performances in the case when signal amplitudes and phases are simultaneously presented to the network. Real–time parameter prediction is achieved together with high accuracy and reliability allowing one to perform the full characterization of a sample in the frequency domain.",
journal = "Inverse Problems in Science and Engineering",
title = "Inverse problem solving in semiconductor photoacoustics by neural networks",
volume = "29",
number = "2",
pages = "248-262",
doi = "10.1080/17415977.2020.1787405"
}
Đorđević, K. Lj., Markushev, D. D., Ćojbašić, Ž. M.,& Galović, S.. (2021). Inverse problem solving in semiconductor photoacoustics by neural networks. in Inverse Problems in Science and Engineering, 29(2), 248-262.
https://doi.org/10.1080/17415977.2020.1787405
Đorđević KL, Markushev DD, Ćojbašić ŽM, Galović S. Inverse problem solving in semiconductor photoacoustics by neural networks. in Inverse Problems in Science and Engineering. 2021;29(2):248-262.
doi:10.1080/17415977.2020.1787405 .
Đorđević, Katarina Lj., Markushev, Dragan D., Ćojbašić, Žarko M., Galović, Slobodanka, "Inverse problem solving in semiconductor photoacoustics by neural networks" in Inverse Problems in Science and Engineering, 29, no. 2 (2021):248-262,
https://doi.org/10.1080/17415977.2020.1787405 . .
1
1
1

Guiding of protons through radially deformed triple-wall carbon nanotubes

Borka, Duško; Borka Jovanović, Vesna

(2021)

TY  - JOUR
AU  - Borka, Duško
AU  - Borka Jovanović, Vesna
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9570
AB  - Abstract: Subject of this study is a theoretical investigation of the channeling of high energy protons with the radially deformed triple-wall carbon nanotubes (TWNTs). Specifically, we chose a proton energy of 1 GeV and perfect and the radially deformed TWNTs (15, 0)@(10, 0)@(5, 0) of radial strengths η= 0.1 , 0.2 and 0.3. We presented the channeling potential within the perfect and deformed TWNTs and corresponding spatial and angular distributions of channeled protons. We treated the problem relativistically. We also analyzed the case where proton beams enter nanotube under different incidence angles. We analyzed two cases L= 1 and 5 μm. We also varied the value of incidence angle of proton beam and calculated the efficiency of nanotube channeling. This is the first time that we presented spatial and angular distributions of channeled protons with radially deformed TWNTs with angular effect of proton beam, and also, for the first time we presented their channeling efficiency. Our results show that the spatial and angular distributions depend strongly on the nanotube lengths, incident angle of the proton beam, and on the level of radial deformation of nanotube. Multi-wall nanotubes (MWNTs) are better candidates for realization of ion guiding than single-wall nanotubes (SWNTs) because it is easier to produce them straight. Also, deformation of the nanotube and the incident proton beam under some initial angle with respect to the nanotube axes represent realistic situation. That is why we believe that these results may be useful for production and guiding of nanosized ion beams by nanotubes. Graphic abstract: [Figure not available: see fulltext.] © 2021, The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - The European Physical Journal D
T1  - Guiding of protons through radially deformed triple-wall carbon nanotubes
VL  - 75
IS  - 2
SP  - 50
DO  - 10.1140/epjd/s10053-021-00039-1
ER  - 
@article{
author = "Borka, Duško and Borka Jovanović, Vesna",
year = "2021",
abstract = "Abstract: Subject of this study is a theoretical investigation of the channeling of high energy protons with the radially deformed triple-wall carbon nanotubes (TWNTs). Specifically, we chose a proton energy of 1 GeV and perfect and the radially deformed TWNTs (15, 0)@(10, 0)@(5, 0) of radial strengths η= 0.1 , 0.2 and 0.3. We presented the channeling potential within the perfect and deformed TWNTs and corresponding spatial and angular distributions of channeled protons. We treated the problem relativistically. We also analyzed the case where proton beams enter nanotube under different incidence angles. We analyzed two cases L= 1 and 5 μm. We also varied the value of incidence angle of proton beam and calculated the efficiency of nanotube channeling. This is the first time that we presented spatial and angular distributions of channeled protons with radially deformed TWNTs with angular effect of proton beam, and also, for the first time we presented their channeling efficiency. Our results show that the spatial and angular distributions depend strongly on the nanotube lengths, incident angle of the proton beam, and on the level of radial deformation of nanotube. Multi-wall nanotubes (MWNTs) are better candidates for realization of ion guiding than single-wall nanotubes (SWNTs) because it is easier to produce them straight. Also, deformation of the nanotube and the incident proton beam under some initial angle with respect to the nanotube axes represent realistic situation. That is why we believe that these results may be useful for production and guiding of nanosized ion beams by nanotubes. Graphic abstract: [Figure not available: see fulltext.] © 2021, The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "The European Physical Journal D",
title = "Guiding of protons through radially deformed triple-wall carbon nanotubes",
volume = "75",
number = "2",
pages = "50",
doi = "10.1140/epjd/s10053-021-00039-1"
}
Borka, D.,& Borka Jovanović, V.. (2021). Guiding of protons through radially deformed triple-wall carbon nanotubes. in The European Physical Journal D, 75(2), 50.
https://doi.org/10.1140/epjd/s10053-021-00039-1
Borka D, Borka Jovanović V. Guiding of protons through radially deformed triple-wall carbon nanotubes. in The European Physical Journal D. 2021;75(2):50.
doi:10.1140/epjd/s10053-021-00039-1 .
Borka, Duško, Borka Jovanović, Vesna, "Guiding of protons through radially deformed triple-wall carbon nanotubes" in The European Physical Journal D, 75, no. 2 (2021):50,
https://doi.org/10.1140/epjd/s10053-021-00039-1 . .
1

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

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

(2021)

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

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

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

(2021)

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

Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China

Wu, Zhen; Zhu, Pengfei; Yao, Jing; Kurko, Sandra V.; Ren, Jianwei; Tan, Peng; Xu, Haoran; Zhang, Zaoxiao; Ni, Meng

(2021)

TY  - JOUR
AU  - Wu, Zhen
AU  - Zhu, Pengfei
AU  - Yao, Jing
AU  - Kurko, Sandra V.
AU  - Ren, Jianwei
AU  - Tan, Peng
AU  - Xu, Haoran
AU  - Zhang, Zaoxiao
AU  - Ni, Meng
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9565
AB  - Advanced efficient energy conversion technology using clean alternative fuel contributes to the alleviation of the energy crisis and environmental deterioration. In this situation, a novel methanol utilization technology for power generation based on hybrid fuel cell system is proposed in this work. The hybrid system consists of a solid oxide fuel cell (SOFC), a gas processing unit (GP) and a proton exchange membrane fuel cell (PEMFC). Thermodynamic analysis of the system shows that the energy conversion efficiency and exergy efficiency are both higher than the previously reported standalone or hybrid energy systems using methanol as fuel, which are 66.2% and 54.2% respectively. Besides, no recirculation ratio of anode off-gas and moderate fuel utilization of about 0.5 are suggested for the SOFC component to balance the power distribution and improve the efficiency. Afterwards, this hybrid fuel cell system is also investigated from thermo-economic and techno-economic perspectives. Take Northwest China as a case, the 1 MWe methanol-fed power plant has a specific electric energy cost of 0.5594 CNY/kWh, much lower than the methanol steam reforming-PEMFC power plant (2.4 CNY/kWh). At the same time, the sensitivity analyses reveal that the cost of the hybrid power system is not sensitive to the market price fluctuation. With financial subsidies for existing renewable power plants, the payback period can be shortened to 1.4 year and the annual return on investment is about 3.58%. These results reveal that this two-stage fuel cell hybrid system is a kind of efficient and economically methanol to power conversion technology, especially for small power scale. © 2021 Elsevier Ltd
T2  - Energy Conversion and Management
T1  - Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China
VL  - 232
SP  - 113899
DO  - 10.1016/j.enconman.2021.113899
ER  - 
@article{
author = "Wu, Zhen and Zhu, Pengfei and Yao, Jing and Kurko, Sandra V. and Ren, Jianwei and Tan, Peng and Xu, Haoran and Zhang, Zaoxiao and Ni, Meng",
year = "2021",
abstract = "Advanced efficient energy conversion technology using clean alternative fuel contributes to the alleviation of the energy crisis and environmental deterioration. In this situation, a novel methanol utilization technology for power generation based on hybrid fuel cell system is proposed in this work. The hybrid system consists of a solid oxide fuel cell (SOFC), a gas processing unit (GP) and a proton exchange membrane fuel cell (PEMFC). Thermodynamic analysis of the system shows that the energy conversion efficiency and exergy efficiency are both higher than the previously reported standalone or hybrid energy systems using methanol as fuel, which are 66.2% and 54.2% respectively. Besides, no recirculation ratio of anode off-gas and moderate fuel utilization of about 0.5 are suggested for the SOFC component to balance the power distribution and improve the efficiency. Afterwards, this hybrid fuel cell system is also investigated from thermo-economic and techno-economic perspectives. Take Northwest China as a case, the 1 MWe methanol-fed power plant has a specific electric energy cost of 0.5594 CNY/kWh, much lower than the methanol steam reforming-PEMFC power plant (2.4 CNY/kWh). At the same time, the sensitivity analyses reveal that the cost of the hybrid power system is not sensitive to the market price fluctuation. With financial subsidies for existing renewable power plants, the payback period can be shortened to 1.4 year and the annual return on investment is about 3.58%. These results reveal that this two-stage fuel cell hybrid system is a kind of efficient and economically methanol to power conversion technology, especially for small power scale. © 2021 Elsevier Ltd",
journal = "Energy Conversion and Management",
title = "Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China",
volume = "232",
pages = "113899",
doi = "10.1016/j.enconman.2021.113899"
}
Wu, Z., Zhu, P., Yao, J., Kurko, S. V., Ren, J., Tan, P., Xu, H., Zhang, Z.,& Ni, M.. (2021). Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China. in Energy Conversion and Management, 232, 113899.
https://doi.org/10.1016/j.enconman.2021.113899
Wu Z, Zhu P, Yao J, Kurko SV, Ren J, Tan P, Xu H, Zhang Z, Ni M. Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China. in Energy Conversion and Management. 2021;232:113899.
doi:10.1016/j.enconman.2021.113899 .
Wu, Zhen, Zhu, Pengfei, Yao, Jing, Kurko, Sandra V., Ren, Jianwei, Tan, Peng, Xu, Haoran, Zhang, Zaoxiao, Ni, Meng, "Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China" in Energy Conversion and Management, 232 (2021):113899,
https://doi.org/10.1016/j.enconman.2021.113899 . .
2

Strawberry (Fragaria ananassa duch.) Alba extract attenuates DNA damage in lymphocytes of patients with Alzheimer’s disease

Živković, Lada; Bajić, Vladan; Čabarkapa‐Pirković, Andrea; Dekanski, Dragana; Forbes‐Hernández, Tamara Yuliett; Zlatković‐Švenda, Mirjana; Perry, George; Spremo‐Potparević, Biljana

(2021)

TY  - JOUR
AU  - Živković, Lada
AU  - Bajić, Vladan
AU  - Čabarkapa‐Pirković, Andrea
AU  - Dekanski, Dragana
AU  - Forbes‐Hernández, Tamara Yuliett
AU  - Zlatković‐Švenda, Mirjana
AU  - Perry, George
AU  - Spremo‐Potparević, Biljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9564
AB  - Increased levels of oxidative stress and oxidative DNA damage are common features in the pathology of Alzheimer’s disease (AD) found in neurons and peripheral cells like peripheral blood lymphocytes (PBL). Natural products such as strawberry cultivar Alba are an important source of bioactive nutrients that could help in lowering both the oxidative stress and DNA damage levels. The objective was to estimate the effects of Alba extract on DNA damage in peripheral blood lymphocytes of sporadic AD (aged 60–84 years) patients, and healthy elderly (aged 69–83 years) and young (aged 21–30 years) individuals in in vitro conditions. Comet assay was used as a sensitive technique for the evaluation of PBL DNA damage levels. Reduction of basal DNA damage level in PBL was shown in the young group after the incubation with Alba extract ranging from 25 to 200 μg/ml, with 100 μg/ml being the most effective concentration. Selected Alba extract of 100 μg/ml was further used for PBL treatment of AD and healthy elderly age matched group, displaying potential to significantly attenuate DNA damage levels in both groups (p <.05). Alba extract displayed biological activity against oxidative DNA damage, suggesting that its functional ingredients may have beneficial health effects. Practical applications: The data obtained in this preliminary study displayed that strawberry Alba extract is efficient against DNA damage induced by endogenous and exogenous oxidative stress in peripheral blood lymphocytes of Alzheimer`s disease in vitro. An active area of future research of Alba cultivar should be to determine the trials in in vivo systems. Our findings also suggest that Alba cultivar’s functional ingredients potentially may have beneficial health effects in AD. © 2021 Wiley Periodicals LLC.
T2  - Journal of Food Biochemistry
T1  - Strawberry (Fragaria ananassa duch.) Alba extract attenuates DNA damage in lymphocytes of patients with Alzheimer’s disease
VL  - 45
IS  - 4
DO  - 10.1111/jfbc.13637
ER  - 
@article{
author = "Živković, Lada and Bajić, Vladan and Čabarkapa‐Pirković, Andrea and Dekanski, Dragana and Forbes‐Hernández, Tamara Yuliett and Zlatković‐Švenda, Mirjana and Perry, George and Spremo‐Potparević, Biljana",
year = "2021",
abstract = "Increased levels of oxidative stress and oxidative DNA damage are common features in the pathology of Alzheimer’s disease (AD) found in neurons and peripheral cells like peripheral blood lymphocytes (PBL). Natural products such as strawberry cultivar Alba are an important source of bioactive nutrients that could help in lowering both the oxidative stress and DNA damage levels. The objective was to estimate the effects of Alba extract on DNA damage in peripheral blood lymphocytes of sporadic AD (aged 60–84 years) patients, and healthy elderly (aged 69–83 years) and young (aged 21–30 years) individuals in in vitro conditions. Comet assay was used as a sensitive technique for the evaluation of PBL DNA damage levels. Reduction of basal DNA damage level in PBL was shown in the young group after the incubation with Alba extract ranging from 25 to 200 μg/ml, with 100 μg/ml being the most effective concentration. Selected Alba extract of 100 μg/ml was further used for PBL treatment of AD and healthy elderly age matched group, displaying potential to significantly attenuate DNA damage levels in both groups (p <.05). Alba extract displayed biological activity against oxidative DNA damage, suggesting that its functional ingredients may have beneficial health effects. Practical applications: The data obtained in this preliminary study displayed that strawberry Alba extract is efficient against DNA damage induced by endogenous and exogenous oxidative stress in peripheral blood lymphocytes of Alzheimer`s disease in vitro. An active area of future research of Alba cultivar should be to determine the trials in in vivo systems. Our findings also suggest that Alba cultivar’s functional ingredients potentially may have beneficial health effects in AD. © 2021 Wiley Periodicals LLC.",
journal = "Journal of Food Biochemistry",
title = "Strawberry (Fragaria ananassa duch.) Alba extract attenuates DNA damage in lymphocytes of patients with Alzheimer’s disease",
volume = "45",
number = "4",
doi = "10.1111/jfbc.13637"
}
Živković, L., Bajić, V., Čabarkapa‐Pirković, A., Dekanski, D., Forbes‐Hernández, T. Y., Zlatković‐Švenda, M., Perry, G.,& Spremo‐Potparević, B.. (2021). Strawberry (Fragaria ananassa duch.) Alba extract attenuates DNA damage in lymphocytes of patients with Alzheimer’s disease. in Journal of Food Biochemistry, 45(4).
https://doi.org/10.1111/jfbc.13637
Živković L, Bajić V, Čabarkapa‐Pirković A, Dekanski D, Forbes‐Hernández TY, Zlatković‐Švenda M, Perry G, Spremo‐Potparević B. Strawberry (Fragaria ananassa duch.) Alba extract attenuates DNA damage in lymphocytes of patients with Alzheimer’s disease. in Journal of Food Biochemistry. 2021;45(4).
doi:10.1111/jfbc.13637 .
Živković, Lada, Bajić, Vladan, Čabarkapa‐Pirković, Andrea, Dekanski, Dragana, Forbes‐Hernández, Tamara Yuliett, Zlatković‐Švenda, Mirjana, Perry, George, Spremo‐Potparević, Biljana, "Strawberry (Fragaria ananassa duch.) Alba extract attenuates DNA damage in lymphocytes of patients with Alzheimer’s disease" in Journal of Food Biochemistry, 45, no. 4 (2021),
https://doi.org/10.1111/jfbc.13637 . .
12

PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix

Pavlović, Vera P.; Tošić, Dragana; Dojčilović, Radovan; Dudić, Duško; Dramićanin, Miroslav; Medić, Mina; McPherson, Michael M.; Pavlović, Vladimir B.; Vlahović, Branislav; Đoković, Vladimir

(2021)

TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Tošić, Dragana
AU  - Dojčilović, Radovan
AU  - Dudić, Duško
AU  - Dramićanin, Miroslav
AU  - Medić, Mina
AU  - McPherson, Michael M.
AU  - Pavlović, Vladimir B.
AU  - Vlahović, Branislav
AU  - Đoković, Vladimir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9563
AB  - Na0.25K0.25Bi0.5TiO3 (NKBT) perovskite particles are synthesized by solid-state method and used as a filler for polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) co-polymer. X-ray diffraction analysis of NKBT powders shows that the particles have a rhombohedral perovskite crystal structure (R3c symmetry). Raman spectroscopy reveals that the co-polymer crystallizes predominantly into the mixture of polar β- and γ-crystals, while there is also a contribution of the non-polar α-crystal phase. The introduction of the NKBT into the PVDF-HFP results with an increase in effective dielectric permittivity and this effect depends on the inorganic content in the composite. The most interesting result of the present study is that the introduction of NKBT particles induces the appearance of an additional transition peak in the dielectric spectra of the co-polymer matrix. At the fixed frequency of ~2 kHz, the observed process appears at ~10 °C (about 45° above the glass transition temperature) and its magnitude strongly depends on the amount of the NKBT in the composite. Dielectric spectroscopy measurements of the composites are carried out in the wide range of frequencies (from 0.1 Hz to 1 MHz) and temperatures (from −100 to 100 °C). They reveal that the novel process can be clearly distinguished in the frequency range between 160 Hz and ~50 kHz. © 2021 The Authors
T2  - Polymer Testing
T1  - PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix
VL  - 96
SP  - 107093
DO  - 10.1016/j.polymertesting.2021.107093
ER  - 
@article{
author = "Pavlović, Vera P. and Tošić, Dragana and Dojčilović, Radovan and Dudić, Duško and Dramićanin, Miroslav and Medić, Mina and McPherson, Michael M. and Pavlović, Vladimir B. and Vlahović, Branislav and Đoković, Vladimir",
year = "2021",
abstract = "Na0.25K0.25Bi0.5TiO3 (NKBT) perovskite particles are synthesized by solid-state method and used as a filler for polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) co-polymer. X-ray diffraction analysis of NKBT powders shows that the particles have a rhombohedral perovskite crystal structure (R3c symmetry). Raman spectroscopy reveals that the co-polymer crystallizes predominantly into the mixture of polar β- and γ-crystals, while there is also a contribution of the non-polar α-crystal phase. The introduction of the NKBT into the PVDF-HFP results with an increase in effective dielectric permittivity and this effect depends on the inorganic content in the composite. The most interesting result of the present study is that the introduction of NKBT particles induces the appearance of an additional transition peak in the dielectric spectra of the co-polymer matrix. At the fixed frequency of ~2 kHz, the observed process appears at ~10 °C (about 45° above the glass transition temperature) and its magnitude strongly depends on the amount of the NKBT in the composite. Dielectric spectroscopy measurements of the composites are carried out in the wide range of frequencies (from 0.1 Hz to 1 MHz) and temperatures (from −100 to 100 °C). They reveal that the novel process can be clearly distinguished in the frequency range between 160 Hz and ~50 kHz. © 2021 The Authors",
journal = "Polymer Testing",
title = "PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix",
volume = "96",
pages = "107093",
doi = "10.1016/j.polymertesting.2021.107093"
}
Pavlović, V. P., Tošić, D., Dojčilović, R., Dudić, D., Dramićanin, M., Medić, M., McPherson, M. M., Pavlović, V. B., Vlahović, B.,& Đoković, V.. (2021). PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix. in Polymer Testing, 96, 107093.
https://doi.org/10.1016/j.polymertesting.2021.107093
Pavlović VP, Tošić D, Dojčilović R, Dudić D, Dramićanin M, Medić M, McPherson MM, Pavlović VB, Vlahović B, Đoković V. PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix. in Polymer Testing. 2021;96:107093.
doi:10.1016/j.polymertesting.2021.107093 .
Pavlović, Vera P., Tošić, Dragana, Dojčilović, Radovan, Dudić, Duško, Dramićanin, Miroslav, Medić, Mina, McPherson, Michael M., Pavlović, Vladimir B., Vlahović, Branislav, Đoković, Vladimir, "PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix" in Polymer Testing, 96 (2021):107093,
https://doi.org/10.1016/j.polymertesting.2021.107093 . .
1

Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies

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

(2021)

TY  - JOUR
AU  - Sirunyan, A.M.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Ambrogi, F.
AU  - Bergauer, T.
AU  - Adžić, Petar
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
AU  - Stojanović, Milan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9573
AB  - Measurements of the second Fourier harmonic coefficient (v2) of the azimuthal distributions of prompt and nonprompt D$^{0}$ mesons produced in pp and pPb collisions are presented. Nonprompt D$^{0}$ mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity pp collisions, v2 signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum (pT) range of 2–6 GeV. Compared at similar event multiplicities, the prompt D$^{0}$ meson v2 values in pp and pPb collisions are similar in magnitude. The v2 values for open beauty hadrons are extracted for the first time via nonprompt D$^{0}$ mesons in pPb collisions. For pT in the range of 2–5 GeV, the results suggest that v2 for nonprompt D$^{0}$ mesons is smaller than that for prompt D$^{0}$ mesons. These new measurements indicate a positive charm hadron v2 in pp collisions and suggest a mass dependence in v2 between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.
T2  - Physics Letters B
T1  - Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies
VL  - 813 C
DO  - 10.1016/j.physletb.2020.136036
ER  - 
@article{
author = "Sirunyan, A.M. 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 and Stojanović, Milan",
year = "2021",
abstract = "Measurements of the second Fourier harmonic coefficient (v2) of the azimuthal distributions of prompt and nonprompt D$^{0}$ mesons produced in pp and pPb collisions are presented. Nonprompt D$^{0}$ mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity pp collisions, v2 signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum (pT) range of 2–6 GeV. Compared at similar event multiplicities, the prompt D$^{0}$ meson v2 values in pp and pPb collisions are similar in magnitude. The v2 values for open beauty hadrons are extracted for the first time via nonprompt D$^{0}$ mesons in pPb collisions. For pT in the range of 2–5 GeV, the results suggest that v2 for nonprompt D$^{0}$ mesons is smaller than that for prompt D$^{0}$ mesons. These new measurements indicate a positive charm hadron v2 in pp collisions and suggest a mass dependence in v2 between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.",
journal = "Physics Letters B",
title = "Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies",
volume = "813 C",
doi = "10.1016/j.physletb.2020.136036"
}
Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P., Milošević, J.,& Stojanović, M.. (2021). Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies. in Physics Letters B, 813 C.
https://doi.org/10.1016/j.physletb.2020.136036
Sirunyan A, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J, Stojanović M. Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies. in Physics Letters B. 2021;813 C.
doi:10.1016/j.physletb.2020.136036 .
Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, Stojanović, Milan, "Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies" in Physics Letters B, 813 C (2021),
https://doi.org/10.1016/j.physletb.2020.136036 . .
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