TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Bundaleski, Nenad
AU  - Petrović, Božana
AU  - Ferarra, Manuela
AU  - Jokanović, Bojan
AU  - Živković, Slavoljub
AU  - Nasov, Ilija
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10029
AB  - Thin films on the base of titanium oxynitrides and copper doped titanium nitride were obtained by a combination of different PVD techniques on the surface of glass substrate and their physicochemical properties were analyzed in details. Phase composition of the samples was analyzed by XRD and FTIR methods, while microstructure of the samples was analyzed by SEM. XPS was used for depth profiling of the samples, which enabled determination of the oxidative state of titanium and corresponding phases through various film layers from the surface to the substrate. The depth of the various layers and their extinction coefficients and refractory indexes were estimated by spectroscopic ellipsometry.
T2  - Vacuum
T1  - Detailed phisyco-chemical characterization of the multilayered thin films based on titanium oxynitride and copper doped titanium nitride obtained by different PVD techniques
VL  - 195
SP  - 110708
DO  - 10.1016/j.vacuum.2021.110708
ER  - 

@article{
author = "Jokanović, Vukoman R. and Bundaleski, Nenad and Petrović, Božana and Ferarra, Manuela and Jokanović, Bojan and Živković, Slavoljub and Nasov, Ilija",
year = "2022",
abstract = "Thin films on the base of titanium oxynitrides and copper doped titanium nitride were obtained by a combination of different PVD techniques on the surface of glass substrate and their physicochemical properties were analyzed in details. Phase composition of the samples was analyzed by XRD and FTIR methods, while microstructure of the samples was analyzed by SEM. XPS was used for depth profiling of the samples, which enabled determination of the oxidative state of titanium and corresponding phases through various film layers from the surface to the substrate. The depth of the various layers and their extinction coefficients and refractory indexes were estimated by spectroscopic ellipsometry.",
journal = "Vacuum",
title = "Detailed phisyco-chemical characterization of the multilayered thin films based on titanium oxynitride and copper doped titanium nitride obtained by different PVD techniques",
volume = "195",
pages = "110708",
doi = "10.1016/j.vacuum.2021.110708"
}

Jokanović, V. R., Bundaleski, N., Petrović, B., Ferarra, M., Jokanović, B., Živković, S.,& Nasov, I.. (2022). Detailed phisyco-chemical characterization of the multilayered thin films based on titanium oxynitride and copper doped titanium nitride obtained by different PVD techniques. in Vacuum, 195, 110708.
https://doi.org/10.1016/j.vacuum.2021.110708

Jokanović VR, Bundaleski N, Petrović B, Ferarra M, Jokanović B, Živković S, Nasov I. Detailed phisyco-chemical characterization of the multilayered thin films based on titanium oxynitride and copper doped titanium nitride obtained by different PVD techniques. in Vacuum. 2022;195:110708.
doi:10.1016/j.vacuum.2021.110708 .

Jokanović, Vukoman R., Bundaleski, Nenad, Petrović, Božana, Ferarra, Manuela, Jokanović, Bojan, Živković, Slavoljub, Nasov, Ilija, "Detailed phisyco-chemical characterization of the multilayered thin films based on titanium oxynitride and copper doped titanium nitride obtained by different PVD techniques" in Vacuum, 195 (2022):110708,
https://doi.org/10.1016/j.vacuum.2021.110708 . .

TY  - JOUR
AU  - Milutinović-Smiljanić, Sanja
AU  - Antonijević, Đorđe
AU  - Mićić, Milutin
AU  - Biočanin, Vladimir
AU  - Sjerobabin, Nikola
AU  - Petrović, Božana
AU  - Danilović, Vesna
AU  - Jokanović, Vukoman R.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11221
AB  - Background/Aim. The materials used nowadays for bone replacement do not fully meet the requirements for complete regeneration, which is why new ones are being tested. Despite numerous attempts to improve bone tissue regeneration, no fulfilling material has been found yet. This study investigated the influence of poly-lactide-co-glycolide (PLGA) and polyethyleneimine (PEI) as coatings for hydroxyapatite (HAP) bone carriers on bone tissue regenerative potential in rabbits? calvarial defect. Methods. Calvarial defects measuring 6 mm in diameter were made in 19 skeletally mature rabbits. Defects were filled with one of the following materials: PLGA coated HAP (HAP + PLGA), PEI coated HAP (HAP + PEI), and bovine HAP ? Bio-Oss? (positive control). Unfilled defects represented negative control. Histological analysis was performed in order to determine the inflammatory response of the host tissue. The formation of the new bone was evaluated using histomorphometric analysis. All analyses have been conducted in samples obtained 3, 6, and 9 weeks after implantation. Results. Three weeks post-implantation, a trend toward increased healing in the HAP + PLGA group compared to other investigated materials was noticed, with no statistically significant difference between the study groups (p > 0.05). However, after 6 and 9 weeks, significant healing was observed in favor of the HAP coated with PLGA compared to other groups (p
AB  - Uvod/Cilj. Materijali koji se u današnje vreme koriste za nadoknadu koštanog tkiva ne dovode do kompletne regeneracije, zbog čega se ispituju novi. Uprkos mnogobrojnim pokušajima da se poboljša regeneracija koštanog tkiva, još uvek nije pronađen materijal koji ispunjava sve kriterijume. Cilj rada bio je da se utvrdi uticaj poli(laktid-ko-glikolida) (PLGA) i polietilenimina (PEI), kao premaza za oblaganje hidroksiapatita (HAP), na regenerativni potencijal koštanog tkiva u defektu kalvarije zeca. Metode. Kod 19 zečeva „zrelog” skeleta načinjeni su defekti kalvarije dijametra 6 mm. Defekti su potom ispunjeni jednim od sledećih materijala: HAP obložen PLGA (HAP + PLGA), HAP obložen PEI (HAP + PEI) i goveđi HAP – Bio-Oss® (pozitivna kontrola). Prazni defekti su predstavljali negativnu kontrolu. Inflamacijska reakcija tkiva domaćina je ispitana histološkom analizom. Formiranje nove kosti je procenjivano histomorfometrijskom analizom. Analizirani su uzorci dobijeni 3, 6 i 9 nedelja nakon implantacije. Rezultati. Tri nedelje nakon implantacije, uočena je tendencija boljeg zarastanja u HAP + PLGA grupi, bez statistički značajne razlike između ispitivanih grupa (p > 0.05). Međutim, 6 i 9 nedelja nakon implantacije, primećeno je značajno formiranje koštanog tkiva u korist HAP + PLGA grupe (p < 0,05). Oblaganje HAP sa PLGA dovelo je do boljeg koštanog zarastanja u poređenju sa HAP+PEI i Bio-Oss®. Zaključak. U pogledu stimulisanja osteogeneze u rekonstruktivnoj hirurgiji kostiju, PLGA je pokazao veći potencijal prekrivanja defekta od PEI.
T2  - Vojnosanitetski pregled
T1  - The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis
T1  - Uticaj različitih materijala koji oblažu hidroksiapatit koštanog nosača na uspeh regeneracije koštanih defekta kalvarije zeca: histomorfometrijska i histološka analiza
VL  - 79
IS  - 10
SP  - 1025
EP  - 1034
DO  - 10.2298/VSP210513072M
ER  - 

@article{
author = "Milutinović-Smiljanić, Sanja and Antonijević, Đorđe and Mićić, Milutin and Biočanin, Vladimir and Sjerobabin, Nikola and Petrović, Božana and Danilović, Vesna and Jokanović, Vukoman R.",
year = "2022",
abstract = "Background/Aim. The materials used nowadays for bone replacement do not fully meet the requirements for complete regeneration, which is why new ones are being tested. Despite numerous attempts to improve bone tissue regeneration, no fulfilling material has been found yet. This study investigated the influence of poly-lactide-co-glycolide (PLGA) and polyethyleneimine (PEI) as coatings for hydroxyapatite (HAP) bone carriers on bone tissue regenerative potential in rabbits? calvarial defect. Methods. Calvarial defects measuring 6 mm in diameter were made in 19 skeletally mature rabbits. Defects were filled with one of the following materials: PLGA coated HAP (HAP + PLGA), PEI coated HAP (HAP + PEI), and bovine HAP ? Bio-Oss? (positive control). Unfilled defects represented negative control. Histological analysis was performed in order to determine the inflammatory response of the host tissue. The formation of the new bone was evaluated using histomorphometric analysis. All analyses have been conducted in samples obtained 3, 6, and 9 weeks after implantation. Results. Three weeks post-implantation, a trend toward increased healing in the HAP + PLGA group compared to other investigated materials was noticed, with no statistically significant difference between the study groups (p > 0.05). However, after 6 and 9 weeks, significant healing was observed in favor of the HAP coated with PLGA compared to other groups (p, Uvod/Cilj. Materijali koji se u današnje vreme koriste za nadoknadu koštanog tkiva ne dovode do kompletne regeneracije, zbog čega se ispituju novi. Uprkos mnogobrojnim pokušajima da se poboljša regeneracija koštanog tkiva, još uvek nije pronađen materijal koji ispunjava sve kriterijume. Cilj rada bio je da se utvrdi uticaj poli(laktid-ko-glikolida) (PLGA) i polietilenimina (PEI), kao premaza za oblaganje hidroksiapatita (HAP), na regenerativni potencijal koštanog tkiva u defektu kalvarije zeca. Metode. Kod 19 zečeva „zrelog” skeleta načinjeni su defekti kalvarije dijametra 6 mm. Defekti su potom ispunjeni jednim od sledećih materijala: HAP obložen PLGA (HAP + PLGA), HAP obložen PEI (HAP + PEI) i goveđi HAP – Bio-Oss® (pozitivna kontrola). Prazni defekti su predstavljali negativnu kontrolu. Inflamacijska reakcija tkiva domaćina je ispitana histološkom analizom. Formiranje nove kosti je procenjivano histomorfometrijskom analizom. Analizirani su uzorci dobijeni 3, 6 i 9 nedelja nakon implantacije. Rezultati. Tri nedelje nakon implantacije, uočena je tendencija boljeg zarastanja u HAP + PLGA grupi, bez statistički značajne razlike između ispitivanih grupa (p > 0.05). Međutim, 6 i 9 nedelja nakon implantacije, primećeno je značajno formiranje koštanog tkiva u korist HAP + PLGA grupe (p < 0,05). Oblaganje HAP sa PLGA dovelo je do boljeg koštanog zarastanja u poređenju sa HAP+PEI i Bio-Oss®. Zaključak. U pogledu stimulisanja osteogeneze u rekonstruktivnoj hirurgiji kostiju, PLGA je pokazao veći potencijal prekrivanja defekta od PEI.",
journal = "Vojnosanitetski pregled",
title = "The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis, Uticaj različitih materijala koji oblažu hidroksiapatit koštanog nosača na uspeh regeneracije koštanih defekta kalvarije zeca: histomorfometrijska i histološka analiza",
volume = "79",
number = "10",
pages = "1025-1034",
doi = "10.2298/VSP210513072M"
}

Milutinović-Smiljanić, S., Antonijević, Đ., Mićić, M., Biočanin, V., Sjerobabin, N., Petrović, B., Danilović, V.,& Jokanović, V. R.. (2022). The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis. in Vojnosanitetski pregled, 79(10), 1025-1034.
https://doi.org/10.2298/VSP210513072M

Milutinović-Smiljanić S, Antonijević Đ, Mićić M, Biočanin V, Sjerobabin N, Petrović B, Danilović V, Jokanović VR. The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis. in Vojnosanitetski pregled. 2022;79(10):1025-1034.
doi:10.2298/VSP210513072M .

Milutinović-Smiljanić, Sanja, Antonijević, Đorđe, Mićić, Milutin, Biočanin, Vladimir, Sjerobabin, Nikola, Petrović, Božana, Danilović, Vesna, Jokanović, Vukoman R., "The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis" in Vojnosanitetski pregled, 79, no. 10 (2022):1025-1034,
https://doi.org/10.2298/VSP210513072M . .

TY  - JOUR
AU  - Suljovrujić, Edin H.
AU  - Rogić Miladinović, Zorana
AU  - Krstić, Maja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11469
AB  - Oligo (ethylene glycol) oligo (propylene glycol) methacrylates (OEGOPGMA) with diferent numbers of ethylene glycol (EG) and propylene glycol (PG) units in backbone were used for the preparation of new thermoresponsive POEGOPGMA hydrogels; EG6PG3MA and EG3PG6MA monomers were used; and three diferent POEGOPGMA hydrogels (PEG6PG3MA, PEG3PG6MA and P(EG6PG3/EG3PG6) MA copolymer with equal mol% of previous two) were fabricated from mono‑ mer–solvent (OEGOPGMA–water/ethanol) mixture by gamma radiation. Charac‑ terisation of the hydrogels was conducted by swelling, UV–Vis, scanning electron microscope, diferential scanning calorimetry and in  vitro biocompatibility (cyto‑ compatibility and haemolytic activity) investigations. The modelling of drug release and difusion characteristics was tested using cephalexin drug. For the frst time, it was shown how to efectively tune the volume phase transition temperature (VPTT) values of the hydrogels by changing the ratio of more hydrophilic (EG) and more hydrophobic (PG) units in (EGPG) “block” pendant chains. The obtained hydrogels revealed the great potential for diferent biomedical applications not only due to the possibility to tune VPTT in the desired way but also due to the good biocompatibil‑ ity and controlled drug delivery within the target temperature range.
T2  - Polymer Bulletin
T1  - Swelling properties and drug release of new biocompatible POEGOPGMA hydrogels with VPTT near to the human body temperature
VL  - 78
SP  - 2405
EP  - 2425
DO  - 10.1007/s00289-020-03217-0
ER  - 

@article{
author = "Suljovrujić, Edin H. and Rogić Miladinović, Zorana and Krstić, Maja",
year = "2021",
abstract = "Oligo (ethylene glycol) oligo (propylene glycol) methacrylates (OEGOPGMA) with diferent numbers of ethylene glycol (EG) and propylene glycol (PG) units in backbone were used for the preparation of new thermoresponsive POEGOPGMA hydrogels; EG6PG3MA and EG3PG6MA monomers were used; and three diferent POEGOPGMA hydrogels (PEG6PG3MA, PEG3PG6MA and P(EG6PG3/EG3PG6) MA copolymer with equal mol% of previous two) were fabricated from mono‑ mer–solvent (OEGOPGMA–water/ethanol) mixture by gamma radiation. Charac‑ terisation of the hydrogels was conducted by swelling, UV–Vis, scanning electron microscope, diferential scanning calorimetry and in  vitro biocompatibility (cyto‑ compatibility and haemolytic activity) investigations. The modelling of drug release and difusion characteristics was tested using cephalexin drug. For the frst time, it was shown how to efectively tune the volume phase transition temperature (VPTT) values of the hydrogels by changing the ratio of more hydrophilic (EG) and more hydrophobic (PG) units in (EGPG) “block” pendant chains. The obtained hydrogels revealed the great potential for diferent biomedical applications not only due to the possibility to tune VPTT in the desired way but also due to the good biocompatibil‑ ity and controlled drug delivery within the target temperature range.",
journal = "Polymer Bulletin",
title = "Swelling properties and drug release of new biocompatible POEGOPGMA hydrogels with VPTT near to the human body temperature",
volume = "78",
pages = "2405-2425",
doi = "10.1007/s00289-020-03217-0"
}

Suljovrujić, E. H., Rogić Miladinović, Z.,& Krstić, M.. (2021). Swelling properties and drug release of new biocompatible POEGOPGMA hydrogels with VPTT near to the human body temperature. in Polymer Bulletin, 78, 2405-2425.
https://doi.org/10.1007/s00289-020-03217-0

Suljovrujić EH, Rogić Miladinović Z, Krstić M. Swelling properties and drug release of new biocompatible POEGOPGMA hydrogels with VPTT near to the human body temperature. in Polymer Bulletin. 2021;78:2405-2425.
doi:10.1007/s00289-020-03217-0 .

Suljovrujić, Edin H., Rogić Miladinović, Zorana, Krstić, Maja, "Swelling properties and drug release of new biocompatible POEGOPGMA hydrogels with VPTT near to the human body temperature" in Polymer Bulletin, 78 (2021):2405-2425,
https://doi.org/10.1007/s00289-020-03217-0 . .

TY  - JOUR
AU  - Đorđević, Katarina Lj.
AU  - Markushev, Dragan D.
AU  - Ćojbašić, Žarko М.
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 М. 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. М.,& 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 ŽМ, 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 М., 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 . .

TY  - JOUR
AU  - Paraš, Smiljana
AU  - Trišić, Dijana
AU  - Mitrović-Ajtić, Olivera
AU  - Antonijević, Đorđe
AU  - Čolović, Božana M.
AU  - Drobne, Damjana
AU  - Jokanović, Vukoman R.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9821
AB  - The effects of a new material based on hydroxyapatite and calcium silicates, named ALBO-MPCA, were investigated on the liver, kidney and spleen. The material was administrated orally for 120 days in an in vivo model in Wistar rats, and untreated animals served as a control. Hematological and biochemical blood parameters were analyzed. Qualitative histological analysis of tissues, change in mitotic activity of cells, and histological characteristics was conducted, as well as quantitative stereological analysis of parenchymal cells, blood sinusoids, and connective tissues. Additionally, the protein expressions of Ki67 and CD68 markers were evaluated. Histological analysis revealed no pathological changes after the tested period. It showed the preservation of the architecture of blood sinusoids and epithelial cells and the presence of mitosis. Additionally, the significantly increased number of the Ki67 in the presence of ALBO-MPCA confirmed the proliferative effect of the material noticed by stereological analysis, while immunoreactive CD68 positive cells did not differ between groups. The study showed non-toxicity of the tested material based on the effects on the hematological, biochemical, and observed histological parameters; in addition, it showed evidence of its biocompatibility. These results could be the basis for further steps toward the application of tested materials in endodontics.
T2  - International Journal of Molecular Science
T1  - Biocompatibility study of a new dental cement based on hydroxyapatite and calcium silicates: Focus on liver, kidney, and spleen tissue effects
VL  - 22
IS  - 11
SP  - 5468
DO  - 10.3390/ijms22115468
ER  - 

@article{
author = "Paraš, Smiljana and Trišić, Dijana and Mitrović-Ajtić, Olivera and Antonijević, Đorđe and Čolović, Božana M. and Drobne, Damjana and Jokanović, Vukoman R.",
year = "2021",
abstract = "The effects of a new material based on hydroxyapatite and calcium silicates, named ALBO-MPCA, were investigated on the liver, kidney and spleen. The material was administrated orally for 120 days in an in vivo model in Wistar rats, and untreated animals served as a control. Hematological and biochemical blood parameters were analyzed. Qualitative histological analysis of tissues, change in mitotic activity of cells, and histological characteristics was conducted, as well as quantitative stereological analysis of parenchymal cells, blood sinusoids, and connective tissues. Additionally, the protein expressions of Ki67 and CD68 markers were evaluated. Histological analysis revealed no pathological changes after the tested period. It showed the preservation of the architecture of blood sinusoids and epithelial cells and the presence of mitosis. Additionally, the significantly increased number of the Ki67 in the presence of ALBO-MPCA confirmed the proliferative effect of the material noticed by stereological analysis, while immunoreactive CD68 positive cells did not differ between groups. The study showed non-toxicity of the tested material based on the effects on the hematological, biochemical, and observed histological parameters; in addition, it showed evidence of its biocompatibility. These results could be the basis for further steps toward the application of tested materials in endodontics.",
journal = "International Journal of Molecular Science",
title = "Biocompatibility study of a new dental cement based on hydroxyapatite and calcium silicates: Focus on liver, kidney, and spleen tissue effects",
volume = "22",
number = "11",
pages = "5468",
doi = "10.3390/ijms22115468"
}

Paraš, S., Trišić, D., Mitrović-Ajtić, O., Antonijević, Đ., Čolović, B. M., Drobne, D.,& Jokanović, V. R.. (2021). Biocompatibility study of a new dental cement based on hydroxyapatite and calcium silicates: Focus on liver, kidney, and spleen tissue effects. in International Journal of Molecular Science, 22(11), 5468.
https://doi.org/10.3390/ijms22115468

Paraš S, Trišić D, Mitrović-Ajtić O, Antonijević Đ, Čolović BM, Drobne D, Jokanović VR. Biocompatibility study of a new dental cement based on hydroxyapatite and calcium silicates: Focus on liver, kidney, and spleen tissue effects. in International Journal of Molecular Science. 2021;22(11):5468.
doi:10.3390/ijms22115468 .

Paraš, Smiljana, Trišić, Dijana, Mitrović-Ajtić, Olivera, Antonijević, Đorđe, Čolović, Božana M., Drobne, Damjana, Jokanović, Vukoman R., "Biocompatibility study of a new dental cement based on hydroxyapatite and calcium silicates: Focus on liver, kidney, and spleen tissue effects" in International Journal of Molecular Science, 22, no. 11 (2021):5468,
https://doi.org/10.3390/ijms22115468 . .

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Bundaleski, Nenad
AU  - Čolović, Božana M.
AU  - Ferarra, Manuela
AU  - Jokanović, Bojan
AU  - Nasov, Ilija
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9891
AB  - Physicochemical properties of thin films on the base of titanium oxides, obtained by a cathodic arc evaporation on the surface of glass substrate are analysed in details. The analysis of these films was made by using XRD, FTIR, SEM, XPS analysis and ellipsometry. On the basis of these analyses, particularly analysis obtained by XPS, the oxidative state Ti and corresponding phases are determined through various film layers from the surface to the substrate. The depth of the various levels and their extinction coefficients and refractory indexes are estimated by ellipsometry.
T2  - Zaštita materijala
T1  - Detailed characterization of the Ti-O based thin films obtained by cathodic arc evaporation
VL  - 62
IS  - 1
SP  - 41
EP  - 50
DO  - 10.5937/zasmat2101041J
ER  - 

@article{
author = "Jokanović, Vukoman R. and Bundaleski, Nenad and Čolović, Božana M. and Ferarra, Manuela and Jokanović, Bojan and Nasov, Ilija",
year = "2021",
abstract = "Physicochemical properties of thin films on the base of titanium oxides, obtained by a cathodic arc evaporation on the surface of glass substrate are analysed in details. The analysis of these films was made by using XRD, FTIR, SEM, XPS analysis and ellipsometry. On the basis of these analyses, particularly analysis obtained by XPS, the oxidative state Ti and corresponding phases are determined through various film layers from the surface to the substrate. The depth of the various levels and their extinction coefficients and refractory indexes are estimated by ellipsometry.",
journal = "Zaštita materijala",
title = "Detailed characterization of the Ti-O based thin films obtained by cathodic arc evaporation",
volume = "62",
number = "1",
pages = "41-50",
doi = "10.5937/zasmat2101041J"
}

Jokanović, V. R., Bundaleski, N., Čolović, B. M., Ferarra, M., Jokanović, B.,& Nasov, I.. (2021). Detailed characterization of the Ti-O based thin films obtained by cathodic arc evaporation. in Zaštita materijala, 62(1), 41-50.
https://doi.org/10.5937/zasmat2101041J

Jokanović VR, Bundaleski N, Čolović BM, Ferarra M, Jokanović B, Nasov I. Detailed characterization of the Ti-O based thin films obtained by cathodic arc evaporation. in Zaštita materijala. 2021;62(1):41-50.
doi:10.5937/zasmat2101041J .

Jokanović, Vukoman R., Bundaleski, Nenad, Čolović, Božana M., Ferarra, Manuela, Jokanović, Bojan, Nasov, Ilija, "Detailed characterization of the Ti-O based thin films obtained by cathodic arc evaporation" in Zaštita materijala, 62, no. 1 (2021):41-50,
https://doi.org/10.5937/zasmat2101041J . .

TY  - JOUR
AU  - Đorđević, Кatarina Lj.
AU  - Galović, Slobodanka
AU  - Jordović-Pavlović, Miroslava I.
AU  - Ćojbašić, Žarko М.
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 I. and Ćojbašić, Žarko М. 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. I., Ćojbašić, Ž. М.,& 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 MI, Ćojbašić ŽМ, 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 I., Ćojbašić, Žarko М., 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 . .

TY  - JOUR
AU  - Milutinović-Smiljanić, Sanja
AU  - Ilić, Dragan
AU  - Danilović, Vesna
AU  - Antonijević, Đorđe
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10030
AB  - Background/Aim. In dentistry, the concept of using inert materials for tissue repair has been replaced by the strategy to find bioactive materials which positively interact with human tissues. The aim of this study was to characterize the physicochemical properties of the commercially available calcium silicate and calcium carbonate-based dental cement, biodentine (Septodont, France). Methods. Material elucidation included the measurements of radiopacity, scanning electron microscopy and x-ray dispersive analyses, wettability, Fourier transform infrared spectroscopy, microindentation, micro- to nanoporosity, setting time, pH and calcium ion release. The cells (mouse bone marrow mesenchymal stem cells – BMSCs) were grown on biodentine surface in order to evaluate its behaviour under biological conditions. Results. The radiopacity of the cement (2.8 mmAl) was below ISO requirement for a root canal filling material. The cement was composed of fine powder with particles similar in size and shape, changing from oval to cubic after having been soaked in a simulated body fluid. Biodentine demonstrated good micromechanical properties and low porosity attributed to microporosity with the average pore size of 92 μm. Wettability (contact angle = 41°), calcium ion release (0.098 μg/cm2) and pH of storage solution (9.07) showed satisfactory characteristics. The BMSCa in intimate contact with cement particles remained viable, indicating biodentine good biocompatibility. Conclusion. Biodentine exhibits good mechanical and physicochemical characteristics, but possesses insufficient radiopacity. © 2021 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.
T2  - Vojnosanitetski pregled
T1  - The advantages and disadvantages of biodentine: satisfactory mechanical properties and radiopacity not meeting ISO standard
VL  - 78
IS  - 9
SP  - 973
EP  - 980
DO  - 10.2298/VSP191212014M
ER  - 

@article{
author = "Milutinović-Smiljanić, Sanja and Ilić, Dragan and Danilović, Vesna and Antonijević, Đorđe",
year = "2021",
abstract = "Background/Aim. In dentistry, the concept of using inert materials for tissue repair has been replaced by the strategy to find bioactive materials which positively interact with human tissues. The aim of this study was to characterize the physicochemical properties of the commercially available calcium silicate and calcium carbonate-based dental cement, biodentine (Septodont, France). Methods. Material elucidation included the measurements of radiopacity, scanning electron microscopy and x-ray dispersive analyses, wettability, Fourier transform infrared spectroscopy, microindentation, micro- to nanoporosity, setting time, pH and calcium ion release. The cells (mouse bone marrow mesenchymal stem cells – BMSCs) were grown on biodentine surface in order to evaluate its behaviour under biological conditions. Results. The radiopacity of the cement (2.8 mmAl) was below ISO requirement for a root canal filling material. The cement was composed of fine powder with particles similar in size and shape, changing from oval to cubic after having been soaked in a simulated body fluid. Biodentine demonstrated good micromechanical properties and low porosity attributed to microporosity with the average pore size of 92 μm. Wettability (contact angle = 41°), calcium ion release (0.098 μg/cm2) and pH of storage solution (9.07) showed satisfactory characteristics. The BMSCa in intimate contact with cement particles remained viable, indicating biodentine good biocompatibility. Conclusion. Biodentine exhibits good mechanical and physicochemical characteristics, but possesses insufficient radiopacity. © 2021 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.",
journal = "Vojnosanitetski pregled",
title = "The advantages and disadvantages of biodentine: satisfactory mechanical properties and radiopacity not meeting ISO standard",
volume = "78",
number = "9",
pages = "973-980",
doi = "10.2298/VSP191212014M"
}

Milutinović-Smiljanić, S., Ilić, D., Danilović, V.,& Antonijević, Đ.. (2021). The advantages and disadvantages of biodentine: satisfactory mechanical properties and radiopacity not meeting ISO standard. in Vojnosanitetski pregled, 78(9), 973-980.
https://doi.org/10.2298/VSP191212014M

Milutinović-Smiljanić S, Ilić D, Danilović V, Antonijević Đ. The advantages and disadvantages of biodentine: satisfactory mechanical properties and radiopacity not meeting ISO standard. in Vojnosanitetski pregled. 2021;78(9):973-980.
doi:10.2298/VSP191212014M .

Milutinović-Smiljanić, Sanja, Ilić, Dragan, Danilović, Vesna, Antonijević, Đorđe, "The advantages and disadvantages of biodentine: satisfactory mechanical properties and radiopacity not meeting ISO standard" in Vojnosanitetski pregled, 78, no. 9 (2021):973-980,
https://doi.org/10.2298/VSP191212014M . .

TY  - JOUR
AU  - Cvijović, Đurđe
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10525
AB  - As a sequel to our recent paper, its general approach was here extended to finite alternating trigonometric sums giving rise to polynomials which were systematically examined in full detail as well as in a unified manner using simple arguments. Two new general families of integer-valued polynomials (along with four other families derived from them, also integer-valued, including two already known) were deduced. Also, these polynomials enable closed-form summation of a great deal of general families of finite sums.
T2  - Applicable Analysis and Discrete Mathematics
T1  - Another two families of integer-valued polynomials associated with finite trigonometric sums
VL  - 15
IS  - 1
SP  - 69
EP  - 81
DO  - 10.2298/AADM200915004C
ER  - 

@article{
author = "Cvijović, Đurđe",
year = "2021",
abstract = "As a sequel to our recent paper, its general approach was here extended to finite alternating trigonometric sums giving rise to polynomials which were systematically examined in full detail as well as in a unified manner using simple arguments. Two new general families of integer-valued polynomials (along with four other families derived from them, also integer-valued, including two already known) were deduced. Also, these polynomials enable closed-form summation of a great deal of general families of finite sums.",
journal = "Applicable Analysis and Discrete Mathematics",
title = "Another two families of integer-valued polynomials associated with finite trigonometric sums",
volume = "15",
number = "1",
pages = "69-81",
doi = "10.2298/AADM200915004C"
}

Cvijović, Đ.. (2021). Another two families of integer-valued polynomials associated with finite trigonometric sums. in Applicable Analysis and Discrete Mathematics, 15(1), 69-81.
https://doi.org/10.2298/AADM200915004C

Cvijović Đ. Another two families of integer-valued polynomials associated with finite trigonometric sums. in Applicable Analysis and Discrete Mathematics. 2021;15(1):69-81.
doi:10.2298/AADM200915004C .

Cvijović, Đurđe, "Another two families of integer-valued polynomials associated with finite trigonometric sums" in Applicable Analysis and Discrete Mathematics, 15, no. 1 (2021):69-81,
https://doi.org/10.2298/AADM200915004C . .

TY  - CONF
AU  - Manić, Nebojša G.
AU  - Janković, Bojan Ž.
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8527
AB  - As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) – differential thermal analysis (DTA) – mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 °C min−1, over temperature range 30–900 °C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (φ), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction. © Springer Nature Switzerland AG 2020.
C3  - Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019
T1  - The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions
VL  - 90
SP  - 39
EP  - 60
DO  - 10.1007/978-3-030-30853-7_3
ER  - 

@conference{
author = "Manić, Nebojša G. and Janković, Bojan Ž. and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir V.",
year = "2020",
abstract = "As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) – differential thermal analysis (DTA) – mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 °C min−1, over temperature range 30–900 °C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (φ), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction. © Springer Nature Switzerland AG 2020.",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019",
title = "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions",
volume = "90",
pages = "39-60",
doi = "10.1007/978-3-030-30853-7_3"
}

Manić, N. G., Janković, B. Ž., Dodevski, V., Stojiljković, D.,& Jovanović, V. V.. (2020). The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019, 90, 39-60.
https://doi.org/10.1007/978-3-030-30853-7_3

Manić NG, Janković BŽ, Dodevski V, Stojiljković D, Jovanović VV. The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019. 2020;90:39-60.
doi:10.1007/978-3-030-30853-7_3 .

Manić, Nebojša G., Janković, Bojan Ž., Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir V., "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions" in Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019, 90 (2020):39-60,
https://doi.org/10.1007/978-3-030-30853-7_3 . .

TY  - JOUR
AU  - Dodevski, Vladimir
AU  - Pagnacco, Maja C.
AU  - Radović, Ivana M.
AU  - Rosić, Milena
AU  - Janković, Bojan Ž.
AU  - Stojmenović, Marija
AU  - Mitić, Vojislav V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8817
AB  - The aim of this research was to obtain a carbon solid residue by the carbonization process of biomass in an inert atmosphere which, through physical activation and chemical treatment (using TEOS - tetraethyl orthosilicate) would allow creation of highly porous and spatially distinct ordered bio-SiC ceramics. The results of carbonization experiments at several operating temperatures and activation of carbons with multiple-cycle treatments TEOS clearly showed the possibility of obtaining SiC nano-structures, after performing the carbothermal reduction at 1400 °C. The increase in the activation temperature and the duration time starts the development of the SiC particles inside the porous structure. The XRPD analysis showed that the major SiC polytype has cubic SiC (β-SiC) structure and remainder is hexagonal SiC polytypic (α-SiC) structure. It was established that the carbons obtained from carbonization of the Platanus orientalis L. plane tree fruit (PTF) precursor and activated at 850 °C with longer holding times (1 and 2 h) exhibit β-SiC (cubic) nano-wires. A possible nano-wires increment mechanism was suggested. The obtained results represent significant contribution in understanding the process as well as the main characteristics of SiC nano-materials and their possible applications.
T2  - Materials Chemistry and Physics
T1  - Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization
VL  - 245
SP  - 122768
DO  - 10.1016/j.matchemphys.2020.122768
ER  - 

@article{
author = "Dodevski, Vladimir and Pagnacco, Maja C. and Radović, Ivana M. and Rosić, Milena and Janković, Bojan Ž. and Stojmenović, Marija and Mitić, Vojislav V.",
year = "2020",
abstract = "The aim of this research was to obtain a carbon solid residue by the carbonization process of biomass in an inert atmosphere which, through physical activation and chemical treatment (using TEOS - tetraethyl orthosilicate) would allow creation of highly porous and spatially distinct ordered bio-SiC ceramics. The results of carbonization experiments at several operating temperatures and activation of carbons with multiple-cycle treatments TEOS clearly showed the possibility of obtaining SiC nano-structures, after performing the carbothermal reduction at 1400 °C. The increase in the activation temperature and the duration time starts the development of the SiC particles inside the porous structure. The XRPD analysis showed that the major SiC polytype has cubic SiC (β-SiC) structure and remainder is hexagonal SiC polytypic (α-SiC) structure. It was established that the carbons obtained from carbonization of the Platanus orientalis L. plane tree fruit (PTF) precursor and activated at 850 °C with longer holding times (1 and 2 h) exhibit β-SiC (cubic) nano-wires. A possible nano-wires increment mechanism was suggested. The obtained results represent significant contribution in understanding the process as well as the main characteristics of SiC nano-materials and their possible applications.",
journal = "Materials Chemistry and Physics",
title = "Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization",
volume = "245",
pages = "122768",
doi = "10.1016/j.matchemphys.2020.122768"
}

Dodevski, V., Pagnacco, M. C., Radović, I. M., Rosić, M., Janković, B. Ž., Stojmenović, M.,& Mitić, V. V.. (2020). Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization. in Materials Chemistry and Physics, 245, 122768.
https://doi.org/10.1016/j.matchemphys.2020.122768

Dodevski V, Pagnacco MC, Radović IM, Rosić M, Janković BŽ, Stojmenović M, Mitić VV. Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization. in Materials Chemistry and Physics. 2020;245:122768.
doi:10.1016/j.matchemphys.2020.122768 .

Dodevski, Vladimir, Pagnacco, Maja C., Radović, Ivana M., Rosić, Milena, Janković, Bojan Ž., Stojmenović, Marija, Mitić, Vojislav V., "Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization" in Materials Chemistry and Physics, 245 (2020):122768,
https://doi.org/10.1016/j.matchemphys.2020.122768 . .

TY  - JOUR
AU  - Dodevski, Vladimir
AU  - Janković, Bojan Ž.
AU  - Radović, Ivana M.
AU  - Stojmenović, Marija
AU  - Čebela, Maria
AU  - Nikolić, Željka
AU  - Pagnacco, Maja C.
AU  - Panić, Ivan
AU  - Stanković, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8900
AB  - In this work, plane tree seed-based activated carbons were characterized in detail for a variety of applications. The particularly important area of application would be in the artificial photosynthesis. After carbonization process of biomass precursor at 650°C, the resulting preliminary activated carbons were activated at various temperatures. The activated carbons were characterized by oxygen functionalities (a particularly important role has ester oxygen groups) which provide a unique microstructure. The chemical compositions of as-prepared activated carbons were analyzed through Fourier transform infrared and Raman spectra as well as gas chromatography–mass spectroscopy analysis, while morphology was observed by scanning electron microscopy analysis. Applied analysis showed that detected graphite mainly becomes uniformly nanocrystalline system. The current study also explored the applicability of carbon material obtained from plane tree seed as a potential gaseous adsorbent. The characterization showed that the tested material contains both mesopores and micropores, and this should be advantageous for the gas sorption process, since mesopores may provide low-resistant pathways for the diffusion of CO 2 molecules, while the micropores are the most suitable for trapping of CO 2 . The sorption process analysis (including adsorption/desorption isotherms behavior) shows indication that the rate-limiting step of CO 2 adsorption onto activated carbon is probably governed by diffusion-controlled process, especially at temperatures below 850°C.
T2  - Energy and Environment
T1  - Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds
VL  - 31
IS  - 4
SP  - 583
EP  - 612
DO  - 10.1177/0958305X19880878
ER  - 

@article{
author = "Dodevski, Vladimir and Janković, Bojan Ž. and Radović, Ivana M. and Stojmenović, Marija and Čebela, Maria and Nikolić, Željka and Pagnacco, Maja C. and Panić, Ivan and Stanković, Miroslav",
year = "2020",
abstract = "In this work, plane tree seed-based activated carbons were characterized in detail for a variety of applications. The particularly important area of application would be in the artificial photosynthesis. After carbonization process of biomass precursor at 650°C, the resulting preliminary activated carbons were activated at various temperatures. The activated carbons were characterized by oxygen functionalities (a particularly important role has ester oxygen groups) which provide a unique microstructure. The chemical compositions of as-prepared activated carbons were analyzed through Fourier transform infrared and Raman spectra as well as gas chromatography–mass spectroscopy analysis, while morphology was observed by scanning electron microscopy analysis. Applied analysis showed that detected graphite mainly becomes uniformly nanocrystalline system. The current study also explored the applicability of carbon material obtained from plane tree seed as a potential gaseous adsorbent. The characterization showed that the tested material contains both mesopores and micropores, and this should be advantageous for the gas sorption process, since mesopores may provide low-resistant pathways for the diffusion of CO 2 molecules, while the micropores are the most suitable for trapping of CO 2 . The sorption process analysis (including adsorption/desorption isotherms behavior) shows indication that the rate-limiting step of CO 2 adsorption onto activated carbon is probably governed by diffusion-controlled process, especially at temperatures below 850°C.",
journal = "Energy and Environment",
title = "Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds",
volume = "31",
number = "4",
pages = "583-612",
doi = "10.1177/0958305X19880878"
}

Dodevski, V., Janković, B. Ž., Radović, I. M., Stojmenović, M., Čebela, M., Nikolić, Ž., Pagnacco, M. C., Panić, I.,& Stanković, M.. (2020). Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds. in Energy and Environment, 31(4), 583-612.
https://doi.org/10.1177/0958305X19880878

Dodevski V, Janković BŽ, Radović IM, Stojmenović M, Čebela M, Nikolić Ž, Pagnacco MC, Panić I, Stanković M. Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds. in Energy and Environment. 2020;31(4):583-612.
doi:10.1177/0958305X19880878 .

Dodevski, Vladimir, Janković, Bojan Ž., Radović, Ivana M., Stojmenović, Marija, Čebela, Maria, Nikolić, Željka, Pagnacco, Maja C., Panić, Ivan, Stanković, Miroslav, "Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds" in Energy and Environment, 31, no. 4 (2020):583-612,
https://doi.org/10.1177/0958305X19880878 . .

TY  - JOUR
AU  - Manić, Nebojša G.
AU  - Janković, Bojan Ž.
AU  - Pijović, Milena
AU  - Waisi, Hadi
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8904
AB  - In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser–Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO2 gases) and charification of the solid residue (increased the bio-char yield). © 2020, Akadémiai Kiadó, Budapest, Hungary.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)
VL  - 142
IS  - 2
SP  - 565
EP  - 579
DO  - 10.1007/s10973-020-09307-5
ER  - 

@article{
author = "Manić, Nebojša G. and Janković, Bojan Ž. and Pijović, Milena and Waisi, Hadi and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir V.",
year = "2020",
abstract = "In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser–Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO2 gases) and charification of the solid residue (increased the bio-char yield). © 2020, Akadémiai Kiadó, Budapest, Hungary.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)",
volume = "142",
number = "2",
pages = "565-579",
doi = "10.1007/s10973-020-09307-5"
}

Manić, N. G., Janković, B. Ž., Pijović, M., Waisi, H., Dodevski, V., Stojiljković, D.,& Jovanović, V. V.. (2020). Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry, 142(2), 565-579.
https://doi.org/10.1007/s10973-020-09307-5

Manić NG, Janković BŽ, Pijović M, Waisi H, Dodevski V, Stojiljković D, Jovanović VV. Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry. 2020;142(2):565-579.
doi:10.1007/s10973-020-09307-5 .

Manić, Nebojša G., Janković, Bojan Ž., Pijović, Milena, Waisi, Hadi, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir V., "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):565-579,
https://doi.org/10.1007/s10973-020-09307-5 . .

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Dodevski, Vladimir
AU  - Radojević, Miloš
AU  - Stojiljković, Dragoslava
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8906
AB  - The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O2/Ar) and different oxygen concentrations (O2/Ar = 20:80% and O2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O2/Ar = 50:50% to O2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 °C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O2/Ar = 50:50% ratio compared with O2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 °C min−1). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (α), especially in devolatilization and combustion of volatiles reaction stages. Large variation in E is attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser–Suzuki function was applied. It was shown that Fraser–Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selected nth-order reaction model.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere
VL  - 142
IS  - 2
SP  - 953
EP  - 976
DO  - 10.1007/s10973-019-09154-z
ER  - 

@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Dodevski, Vladimir and Radojević, Miloš and Stojiljković, Dragoslava",
year = "2020",
abstract = "The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O2/Ar) and different oxygen concentrations (O2/Ar = 20:80% and O2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O2/Ar = 50:50% to O2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 °C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O2/Ar = 50:50% ratio compared with O2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 °C min−1). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (α), especially in devolatilization and combustion of volatiles reaction stages. Large variation in E is attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser–Suzuki function was applied. It was shown that Fraser–Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selected nth-order reaction model.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere",
volume = "142",
number = "2",
pages = "953-976",
doi = "10.1007/s10973-019-09154-z"
}

Janković, B. Ž., Manić, N. G., Dodevski, V., Radojević, M.,& Stojiljković, D.. (2020). Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere. in Journal of Thermal Analysis and Calorimetry, 142(2), 953-976.
https://doi.org/10.1007/s10973-019-09154-z

Janković BŽ, Manić NG, Dodevski V, Radojević M, Stojiljković D. Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere. in Journal of Thermal Analysis and Calorimetry. 2020;142(2):953-976.
doi:10.1007/s10973-019-09154-z .

Janković, Bojan Ž., Manić, Nebojša G., Dodevski, Vladimir, Radojević, Miloš, Stojiljković, Dragoslava, "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):953-976,
https://doi.org/10.1007/s10973-019-09154-z . .

TY  - JOUR
AU  - Dodevski, Vladimir
AU  - Janković, Bojan Ž.
AU  - Mirković, Miljana M.
AU  - Kragović, Milan M.
AU  - Radović, Ivana M.
AU  - Veljković, Filip M.
AU  - Stojmenović, Marija
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8922
AB  - Goal of this work is to establish technical feasibility and fundamentals of producing activated carbon from plane tree seeds biomass for porous materials derivation. Bio-chars produced via carbonization from plane tree seeds precursor were activated in CO2 at 750 and 850?C, during various residence times. Their surface area and porosity were characterized by N2 adsorption at 77 K. Surface areas of activated carbons can be correlated with kinetics mechanism and activation energy magnitudes of oxidation reaction by CO2, which are closely related to applied activation temperature. Result showed that high temperature activated carbon had higher gas adsorption as compared to activated carbon obtained from lower temperature during two-hour residence time. Breakthrough behavior was detected at 850?C where surface reactions dominate, and it is characterized by autocatalytic kinetic model under designed conditions. Both, temperature and CO2 concentration in vicinity of solid surface effect on breakthrough time of adsorbent. Derived bio-chars are converted into high quality activated carbons, with surface area of 776.55 m2/g, where micro-pores with pore diameters less than 2 nm prevail. Produced activated carbons have properties comparable with commercially available activated carbons, which can be successfully used for removal of harmful gaseous pollutants toward air purification.
T2  - Thermal Science
T1  - Carbon dioxide activation of the plane tree seeds derived bio-char: Kinetic properties and application
VL  - 24
IS  - 6 (Part A)
SP  - 3807
EP  - 3821
DO  - 10.2298/TSCI190913064D
ER  - 

@article{
author = "Dodevski, Vladimir and Janković, Bojan Ž. and Mirković, Miljana M. and Kragović, Milan M. and Radović, Ivana M. and Veljković, Filip M. and Stojmenović, Marija",
year = "2020",
abstract = "Goal of this work is to establish technical feasibility and fundamentals of producing activated carbon from plane tree seeds biomass for porous materials derivation. Bio-chars produced via carbonization from plane tree seeds precursor were activated in CO2 at 750 and 850?C, during various residence times. Their surface area and porosity were characterized by N2 adsorption at 77 K. Surface areas of activated carbons can be correlated with kinetics mechanism and activation energy magnitudes of oxidation reaction by CO2, which are closely related to applied activation temperature. Result showed that high temperature activated carbon had higher gas adsorption as compared to activated carbon obtained from lower temperature during two-hour residence time. Breakthrough behavior was detected at 850?C where surface reactions dominate, and it is characterized by autocatalytic kinetic model under designed conditions. Both, temperature and CO2 concentration in vicinity of solid surface effect on breakthrough time of adsorbent. Derived bio-chars are converted into high quality activated carbons, with surface area of 776.55 m2/g, where micro-pores with pore diameters less than 2 nm prevail. Produced activated carbons have properties comparable with commercially available activated carbons, which can be successfully used for removal of harmful gaseous pollutants toward air purification.",
journal = "Thermal Science",
title = "Carbon dioxide activation of the plane tree seeds derived bio-char: Kinetic properties and application",
volume = "24",
number = "6 (Part A)",
pages = "3807-3821",
doi = "10.2298/TSCI190913064D"
}

Dodevski, V., Janković, B. Ž., Mirković, M. M., Kragović, M. M., Radović, I. M., Veljković, F. M.,& Stojmenović, M.. (2020). Carbon dioxide activation of the plane tree seeds derived bio-char: Kinetic properties and application. in Thermal Science, 24(6 (Part A)), 3807-3821.
https://doi.org/10.2298/TSCI190913064D

Dodevski V, Janković BŽ, Mirković MM, Kragović MM, Radović IM, Veljković FM, Stojmenović M. Carbon dioxide activation of the plane tree seeds derived bio-char: Kinetic properties and application. in Thermal Science. 2020;24(6 (Part A)):3807-3821.
doi:10.2298/TSCI190913064D .

Dodevski, Vladimir, Janković, Bojan Ž., Mirković, Miljana M., Kragović, Milan M., Radović, Ivana M., Veljković, Filip M., Stojmenović, Marija, "Carbon dioxide activation of the plane tree seeds derived bio-char: Kinetic properties and application" in Thermal Science, 24, no. 6 (Part A) (2020):3807-3821,
https://doi.org/10.2298/TSCI190913064D . .

TY  - JOUR
AU  - Batalović, Katarina
AU  - Radaković, Jana
AU  - Bundaleski, Nenad
AU  - Rakočević, Zlatko Lj.
AU  - Pašti, Igor A.
AU  - Skorodumova, Natalia V.
AU  - Rangel, Carmen Mireya
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9620
AB  - In pursuit of the ideal photocatalyst, cheap and stable semiconductor TiO2 is considered to be a good choice if one is able to reduce its band gap and decrease the recombination rate of charge carriers. The approach that offers such improvements for energy conversion applications is the modification of TiO2 with nitrogen and noble metals. However, the origin of these improvements and possibilities for further design of single-atom catalysts are not always straightforward. To shed light on the atomic-scale picture, we modeled the nitrogen-doped (001) anatase TiO2 surface as a support for palladium and platinum single-atom deposition. The thermodynamics of various synthesis routes for Pd/Pt deposition and nitrogen doping is considered based on density functional theory (DFT)-calculated energies, highlighting the effect of nitrogen doping on metal dimer formation and metal-support interaction. XPS analysis of the valence band of the modified TiO2 nanocrystals, and the calculated charge transfer and electronic structure of single-atom catalysts supported on the (001) anatase TiO2 surface provide an insight into modifications occurring in the valence zone of TiO2 due to nitrogen doping and Pd/Pt deposition at the surface. DFT results also show that substitutional nitrogen doping significantly increases metal-support interaction, while interstitial nitrogen doping promotes only Pt-support interaction. © the Owner Societies.
T2  - Physical Chemistry Chemical Physics
T1  - Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface
VL  - 22
IS  - 33
SP  - 18536
EP  - 18547
DO  - 10.1039/d0cp03186k
ER  - 

@article{
author = "Batalović, Katarina and Radaković, Jana and Bundaleski, Nenad and Rakočević, Zlatko Lj. and Pašti, Igor A. and Skorodumova, Natalia V. and Rangel, Carmen Mireya",
year = "2020",
abstract = "In pursuit of the ideal photocatalyst, cheap and stable semiconductor TiO2 is considered to be a good choice if one is able to reduce its band gap and decrease the recombination rate of charge carriers. The approach that offers such improvements for energy conversion applications is the modification of TiO2 with nitrogen and noble metals. However, the origin of these improvements and possibilities for further design of single-atom catalysts are not always straightforward. To shed light on the atomic-scale picture, we modeled the nitrogen-doped (001) anatase TiO2 surface as a support for palladium and platinum single-atom deposition. The thermodynamics of various synthesis routes for Pd/Pt deposition and nitrogen doping is considered based on density functional theory (DFT)-calculated energies, highlighting the effect of nitrogen doping on metal dimer formation and metal-support interaction. XPS analysis of the valence band of the modified TiO2 nanocrystals, and the calculated charge transfer and electronic structure of single-atom catalysts supported on the (001) anatase TiO2 surface provide an insight into modifications occurring in the valence zone of TiO2 due to nitrogen doping and Pd/Pt deposition at the surface. DFT results also show that substitutional nitrogen doping significantly increases metal-support interaction, while interstitial nitrogen doping promotes only Pt-support interaction. © the Owner Societies.",
journal = "Physical Chemistry Chemical Physics",
title = "Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface",
volume = "22",
number = "33",
pages = "18536-18547",
doi = "10.1039/d0cp03186k"
}

Batalović, K., Radaković, J., Bundaleski, N., Rakočević, Z. Lj., Pašti, I. A., Skorodumova, N. V.,& Rangel, C. M.. (2020). Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface. in Physical Chemistry Chemical Physics, 22(33), 18536-18547.
https://doi.org/10.1039/d0cp03186k

Batalović K, Radaković J, Bundaleski N, Rakočević ZL, Pašti IA, Skorodumova NV, Rangel CM. Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface. in Physical Chemistry Chemical Physics. 2020;22(33):18536-18547.
doi:10.1039/d0cp03186k .

Batalović, Katarina, Radaković, Jana, Bundaleski, Nenad, Rakočević, Zlatko Lj., Pašti, Igor A., Skorodumova, Natalia V., Rangel, Carmen Mireya, "Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface" in Physical Chemistry Chemical Physics, 22, no. 33 (2020):18536-18547,
https://doi.org/10.1039/d0cp03186k . .

TY  - JOUR
AU  - Đorđević, Katarina Lj.
AU  - Markushev, Dragan D.
AU  - Ćojbašić, Žarko М.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8759
AB  - In this paper, a simple multilayer perceptron neural network with forward signal propagation was designed and used to simultaneously determine the main physical parameters, such as: the thermal diffusivity, thermal expansion coefficient and thickness, from the transmission, frequency-modulated photoacoustic response of the sample. The amplitude and phase responses of the transmission open-cell photoacoustic signals were calculated in n-type silicon plates using a theoretical model and were used to train and test a neural network. The simulation was done in the modulation frequency range from 20 Hz to 20 kHz and using a wide range of expected values of thermal diffusivity and the thermal coefficient of expansion for semiconductor samples as well as their thickness. The advantages and disadvantages of neural networks utilization as an appropriate mathematical tool designated for semiconductor measurement-oriented purposes are analyzed. Network reliability, precision, and the possibility of operation in real time have been verified on an independent set of signals, establishing photoacoustics as a competitive and powerful technique assigned for material characterization. © 2019, Springer Nature B.V.
T2  - Silicon
T1  - Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks
VL  - 12
IS  - 6
SP  - 1289
EP  - 1300
DO  - 10.1007/s12633-019-00213-6
ER  - 

@article{
author = "Đorđević, Katarina Lj. and Markushev, Dragan D. and Ćojbašić, Žarko М.",
year = "2020",
abstract = "In this paper, a simple multilayer perceptron neural network with forward signal propagation was designed and used to simultaneously determine the main physical parameters, such as: the thermal diffusivity, thermal expansion coefficient and thickness, from the transmission, frequency-modulated photoacoustic response of the sample. The amplitude and phase responses of the transmission open-cell photoacoustic signals were calculated in n-type silicon plates using a theoretical model and were used to train and test a neural network. The simulation was done in the modulation frequency range from 20 Hz to 20 kHz and using a wide range of expected values of thermal diffusivity and the thermal coefficient of expansion for semiconductor samples as well as their thickness. The advantages and disadvantages of neural networks utilization as an appropriate mathematical tool designated for semiconductor measurement-oriented purposes are analyzed. Network reliability, precision, and the possibility of operation in real time have been verified on an independent set of signals, establishing photoacoustics as a competitive and powerful technique assigned for material characterization. © 2019, Springer Nature B.V.",
journal = "Silicon",
title = "Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks",
volume = "12",
number = "6",
pages = "1289-1300",
doi = "10.1007/s12633-019-00213-6"
}

Đorđević, K. Lj., Markushev, D. D.,& Ćojbašić, Ž. М.. (2020). Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks. in Silicon, 12(6), 1289-1300.
https://doi.org/10.1007/s12633-019-00213-6

Đorđević KL, Markushev DD, Ćojbašić ŽМ. Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks. in Silicon. 2020;12(6):1289-1300.
doi:10.1007/s12633-019-00213-6 .

Đorđević, Katarina Lj., Markushev, Dragan D., Ćojbašić, Žarko М., "Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks" in Silicon, 12, no. 6 (2020):1289-1300,
https://doi.org/10.1007/s12633-019-00213-6 . .

TY  - JOUR
AU  - Jordović-Pavlović, Miroslava I.
AU  - Markushev, Dragan D.
AU  - Kupusinac, Aleksandar
AU  - Đorđević, Katarina Lj.
AU  - Nešić, Mioljub V.
AU  - Galović, Slobodanka
AU  - Popović, Marica N.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8912
AB  - In this paper, a methodology for the application of neural networks in phase-match calibration of gas–microphone photoacoustics in frequency domain is developed. A two-layer deep neural network is used to determine, in real-time, reliably and accurately, the phase transfer function of the used microphone, applying the photoacoustic response of aluminum as reference material. This transfer function was used to correct the photoacoustic response of laser-sintered polyamide and to compare it with theoretical predictions. The obtained degree of correlation of the corrected and theoretical signal tells us that our method of phase-match calibration in photoacoustics can be generalized to a photoacoustic response coming from a solid sample made of different materials.
T2  - International Journal of Thermophysics
T1  - Deep Neural Network Application in the Phase-Match Calibration of Gas–Microphone Photoacoustics
VL  - 41
IS  - 6
SP  - 73
DO  - 10.1007/s10765-020-02650-7
ER  - 

@article{
author = "Jordović-Pavlović, Miroslava I. and Markushev, Dragan D. and Kupusinac, Aleksandar and Đorđević, Katarina Lj. and Nešić, Mioljub V. and Galović, Slobodanka and Popović, Marica N.",
year = "2020",
abstract = "In this paper, a methodology for the application of neural networks in phase-match calibration of gas–microphone photoacoustics in frequency domain is developed. A two-layer deep neural network is used to determine, in real-time, reliably and accurately, the phase transfer function of the used microphone, applying the photoacoustic response of aluminum as reference material. This transfer function was used to correct the photoacoustic response of laser-sintered polyamide and to compare it with theoretical predictions. The obtained degree of correlation of the corrected and theoretical signal tells us that our method of phase-match calibration in photoacoustics can be generalized to a photoacoustic response coming from a solid sample made of different materials.",
journal = "International Journal of Thermophysics",
title = "Deep Neural Network Application in the Phase-Match Calibration of Gas–Microphone Photoacoustics",
volume = "41",
number = "6",
pages = "73",
doi = "10.1007/s10765-020-02650-7"
}

Jordović-Pavlović, M. I., Markushev, D. D., Kupusinac, A., Đorđević, K. Lj., Nešić, M. V., Galović, S.,& Popović, M. N.. (2020). Deep Neural Network Application in the Phase-Match Calibration of Gas–Microphone Photoacoustics. in International Journal of Thermophysics, 41(6), 73.
https://doi.org/10.1007/s10765-020-02650-7

Jordović-Pavlović MI, Markushev DD, Kupusinac A, Đorđević KL, Nešić MV, Galović S, Popović MN. Deep Neural Network Application in the Phase-Match Calibration of Gas–Microphone Photoacoustics. in International Journal of Thermophysics. 2020;41(6):73.
doi:10.1007/s10765-020-02650-7 .

Jordović-Pavlović, Miroslava I., Markushev, Dragan D., Kupusinac, Aleksandar, Đorđević, Katarina Lj., Nešić, Mioljub V., Galović, Slobodanka, Popović, Marica N., "Deep Neural Network Application in the Phase-Match Calibration of Gas–Microphone Photoacoustics" in International Journal of Thermophysics, 41, no. 6 (2020):73,
https://doi.org/10.1007/s10765-020-02650-7 . .

TY  - JOUR
AU  - Đorđević, Katarina Lj.
AU  - Galović, Slobodanka
AU  - Jordović-Pavlović, Miroslava I.
AU  - Nešić, Mioljub V.
AU  - Popović, Marica N.
AU  - Ćojbašić, Žarko М.
AU  - Markushev, Dragan D.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8972
AB  - This paper introduces the possibility of the determination of optical absorption and reflexivity coefficient of silicon samples using neural networks and reverse-back procedure based on the photoacoustics response in the frequency domain. Differences between neural network predictions and parameters obtained with standard photoacoustic signal correction procedures are used to adjust our experimental set-up due to the instability of the optical excitation source and the state (contamination) of the illuminated surface. It has been shown that the changes of the optical absorption values correspond to the light source wavelength fluctuations, while changes in the reflexivity coefficient, obtained in this way, correspond to the small effect of the ultrathin layer formation of SiO2 due to the natural process of surface oxidation.
T2  - Optical and Quantum Electronics
T1  - Photoacoustic optical semiconductor characterization based on machine learning and reverse-back procedure
VL  - 52
IS  - 5
SP  - 247
DO  - 10.1007/s11082-020-02373-x
ER  - 

@article{
author = "Đorđević, Katarina Lj. and Galović, Slobodanka and Jordović-Pavlović, Miroslava I. and Nešić, Mioljub V. and Popović, Marica N. and Ćojbašić, Žarko М. and Markushev, Dragan D.",
year = "2020",
abstract = "This paper introduces the possibility of the determination of optical absorption and reflexivity coefficient of silicon samples using neural networks and reverse-back procedure based on the photoacoustics response in the frequency domain. Differences between neural network predictions and parameters obtained with standard photoacoustic signal correction procedures are used to adjust our experimental set-up due to the instability of the optical excitation source and the state (contamination) of the illuminated surface. It has been shown that the changes of the optical absorption values correspond to the light source wavelength fluctuations, while changes in the reflexivity coefficient, obtained in this way, correspond to the small effect of the ultrathin layer formation of SiO2 due to the natural process of surface oxidation.",
journal = "Optical and Quantum Electronics",
title = "Photoacoustic optical semiconductor characterization based on machine learning and reverse-back procedure",
volume = "52",
number = "5",
pages = "247",
doi = "10.1007/s11082-020-02373-x"
}

Đorđević, K. Lj., Galović, S., Jordović-Pavlović, M. I., Nešić, M. V., Popović, M. N., Ćojbašić, Ž. М.,& Markushev, D. D.. (2020). Photoacoustic optical semiconductor characterization based on machine learning and reverse-back procedure. in Optical and Quantum Electronics, 52(5), 247.
https://doi.org/10.1007/s11082-020-02373-x

Đorđević KL, Galović S, Jordović-Pavlović MI, Nešić MV, Popović MN, Ćojbašić ŽМ, Markushev DD. Photoacoustic optical semiconductor characterization based on machine learning and reverse-back procedure. in Optical and Quantum Electronics. 2020;52(5):247.
doi:10.1007/s11082-020-02373-x .

Đorđević, Katarina Lj., Galović, Slobodanka, Jordović-Pavlović, Miroslava I., Nešić, Mioljub V., Popović, Marica N., Ćojbašić, Žarko М., Markushev, Dragan D., "Photoacoustic optical semiconductor characterization based on machine learning and reverse-back procedure" in Optical and Quantum Electronics, 52, no. 5 (2020):247,
https://doi.org/10.1007/s11082-020-02373-x . .

TY  - JOUR
AU  - Jordović-Pavlović, Miroslava I.
AU  - Kupusinac, Aleksandar
AU  - Đorđević, Katarina Lj.
AU  - Galović, Slobodanka
AU  - Markushev, Dragan D.
AU  - Nešić, Mioljub V.
AU  - Popović, Marica N.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8982
AB  - In this article, a method for determination of photoacoustic detector transfer function as an accurate representation of microphone frequency response is presented. The method is based on supervised machine learning techniques, classification and regression, performed by two artificial neural networks. The transfer function is obtained by determining the microphone type and characteristic parameters closely related to its filtering properties. This knowledge is crucial within the signal correction procedure. The method is carefully designed in order to maintain requirements of photoacoustic experiment accuracy, reliability and real-time performance. The networks training is performed using large base of theoretical signals simulating frequency response of three types of commercial electret microphones frequently used in photoacoustic measurements extended with possible flat response of the so-called ideal microphone. The method test is performed with simulated and experimental signals assuming the usage of open-cell photoacoustic set-up. Experimental testing leads to the microphone transfer function determination used to correct the experimental signals, targeting the “true” undistorted photoacoustic response which can be further used in material characterization process.
T2  - Optical and Quantum Electronics
T1  - Computationally intelligent description of a photoacoustic detector
VL  - 52
IS  - 5
SP  - 246
DO  - 10.1007/s11082-020-02372-y
ER  - 

@article{
author = "Jordović-Pavlović, Miroslava I. and Kupusinac, Aleksandar and Đorđević, Katarina Lj. and Galović, Slobodanka and Markushev, Dragan D. and Nešić, Mioljub V. and Popović, Marica N.",
year = "2020",
abstract = "In this article, a method for determination of photoacoustic detector transfer function as an accurate representation of microphone frequency response is presented. The method is based on supervised machine learning techniques, classification and regression, performed by two artificial neural networks. The transfer function is obtained by determining the microphone type and characteristic parameters closely related to its filtering properties. This knowledge is crucial within the signal correction procedure. The method is carefully designed in order to maintain requirements of photoacoustic experiment accuracy, reliability and real-time performance. The networks training is performed using large base of theoretical signals simulating frequency response of three types of commercial electret microphones frequently used in photoacoustic measurements extended with possible flat response of the so-called ideal microphone. The method test is performed with simulated and experimental signals assuming the usage of open-cell photoacoustic set-up. Experimental testing leads to the microphone transfer function determination used to correct the experimental signals, targeting the “true” undistorted photoacoustic response which can be further used in material characterization process.",
journal = "Optical and Quantum Electronics",
title = "Computationally intelligent description of a photoacoustic detector",
volume = "52",
number = "5",
pages = "246",
doi = "10.1007/s11082-020-02372-y"
}

Jordović-Pavlović, M. I., Kupusinac, A., Đorđević, K. Lj., Galović, S., Markushev, D. D., Nešić, M. V.,& Popović, M. N.. (2020). Computationally intelligent description of a photoacoustic detector. in Optical and Quantum Electronics, 52(5), 246.
https://doi.org/10.1007/s11082-020-02372-y

Jordović-Pavlović MI, Kupusinac A, Đorđević KL, Galović S, Markushev DD, Nešić MV, Popović MN. Computationally intelligent description of a photoacoustic detector. in Optical and Quantum Electronics. 2020;52(5):246.
doi:10.1007/s11082-020-02372-y .

Jordović-Pavlović, Miroslava I., Kupusinac, Aleksandar, Đorđević, Katarina Lj., Galović, Slobodanka, Markushev, Dragan D., Nešić, Mioljub V., Popović, Marica N., "Computationally intelligent description of a photoacoustic detector" in Optical and Quantum Electronics, 52, no. 5 (2020):246,
https://doi.org/10.1007/s11082-020-02372-y . .

TY  - JOUR
AU  - Đorđević, Katarina Lj.
AU  - Markushev, Dragan D.
AU  - Ćojbašić, Žarko М.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9667
AB  - The original version of the article unfortunately contained an error. © 2020, Springer Nature B.V.
The author name ‘Кatarina Lj. Djordjevic’ was inadvertently
captured twice. The correct author group is shown above.
T2  - Silicon
T1  - Correction to: Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks (Silicon, (2020), 12, 6, (1289-1300), 10.1007/s12633-019-00213-6)
VL  - 12
IS  - 6
SP  - 1289
EP  - 1300
DO  - 10.1007/s12633-020-00726-5
ER  - 

@article{
author = "Đorđević, Katarina Lj. and Markushev, Dragan D. and Ćojbašić, Žarko М.",
year = "2020",
abstract = "The original version of the article unfortunately contained an error. © 2020, Springer Nature B.V.
The author name ‘Кatarina Lj. Djordjevic’ was inadvertently
captured twice. The correct author group is shown above.",
journal = "Silicon",
title = "Correction to: Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks (Silicon, (2020), 12, 6, (1289-1300), 10.1007/s12633-019-00213-6)",
volume = "12",
number = "6",
pages = "1289-1300",
doi = "10.1007/s12633-020-00726-5"
}

Đorđević, K. Lj., Markushev, D. D.,& Ćojbašić, Ž. М.. (2020). Correction to: Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks (Silicon, (2020), 12, 6, (1289-1300), 10.1007/s12633-019-00213-6). in Silicon, 12(6), 1289-1300.
https://doi.org/10.1007/s12633-020-00726-5

Đorđević KL, Markushev DD, Ćojbašić ŽМ. Correction to: Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks (Silicon, (2020), 12, 6, (1289-1300), 10.1007/s12633-019-00213-6). in Silicon. 2020;12(6):1289-1300.
doi:10.1007/s12633-020-00726-5 .

Đorđević, Katarina Lj., Markushev, Dragan D., Ćojbašić, Žarko М., "Correction to: Photoacoustic Measurements of the Thermal and Elastic Properties of n-Type Silicon Using Neural Networks (Silicon, (2020), 12, 6, (1289-1300), 10.1007/s12633-019-00213-6)" in Silicon, 12, no. 6 (2020):1289-1300,
https://doi.org/10.1007/s12633-020-00726-5 . .

TY  - JOUR
AU  - Micić, Milutin
AU  - Antonijević, Đorđe
AU  - Milutinović-Smiljanić, Sanja
AU  - Trišić, Dijana
AU  - Čolović, Božana M.
AU  - Kosanović, Dejana
AU  - Prokić, Bogomir Bolka
AU  - Vasić, Jugoslav
AU  - Živković, Slavoljub
AU  - Milašin, Jelena
AU  - Danilović, Vesna
AU  - Đurić, Marija P.
AU  - Jokanović, Vukoman R.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8993
AB  - The aim of this study was to develop novel hydroxyapatite (HAP)-based bioactive bone replacement materials for segmental osteotomy reconstruction. Customized three-dimensional (3D) bone construct was manufactured from nanohydroxyapatite (nHAP) with poly(lactide-co-glycolide) (PLGA) coating using 3D models derived from the computed tomography (CT) scanning of the rabbit's ulna and gradient 3D printing of the bone substitute mimicking the anatomical shape of the natural bone defect. Engineered construct revealed adequate micro-architectural design for successful bone regeneration having a total porosity of 64% and an average pore size of 256 μm. Radiography and micro-CT analysis depicted new bone apposition through the whole length of the reconstructed ulna with a small area of non-resorbed construct in the central area of defect. Histological analysis revealed new bone formation with both endochondral and endesmal type of ossification. Immunohistochemistry analysis depicted the presence of bone formation indicators-bone morphogenetic protein (BMP), osteocalcin (OCN) and osteopontin (OPN) within newly formed bone. Manufactured personalized construct acts as a "smart" responsive biomaterial capable of modulating the functionality and potential for the personalized bone reconstruction on a clinically relevant length scale.
T2  - Biomedizinische Technik
T1  - Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction
VL  - 65
IS  - 4
SP  - 491
EP  - 505
DO  - 10.1515/bmt-2019-0218
ER  - 

@article{
author = "Micić, Milutin and Antonijević, Đorđe and Milutinović-Smiljanić, Sanja and Trišić, Dijana and Čolović, Božana M. and Kosanović, Dejana and Prokić, Bogomir Bolka and Vasić, Jugoslav and Živković, Slavoljub and Milašin, Jelena and Danilović, Vesna and Đurić, Marija P. and Jokanović, Vukoman R.",
year = "2020",
abstract = "The aim of this study was to develop novel hydroxyapatite (HAP)-based bioactive bone replacement materials for segmental osteotomy reconstruction. Customized three-dimensional (3D) bone construct was manufactured from nanohydroxyapatite (nHAP) with poly(lactide-co-glycolide) (PLGA) coating using 3D models derived from the computed tomography (CT) scanning of the rabbit's ulna and gradient 3D printing of the bone substitute mimicking the anatomical shape of the natural bone defect. Engineered construct revealed adequate micro-architectural design for successful bone regeneration having a total porosity of 64% and an average pore size of 256 μm. Radiography and micro-CT analysis depicted new bone apposition through the whole length of the reconstructed ulna with a small area of non-resorbed construct in the central area of defect. Histological analysis revealed new bone formation with both endochondral and endesmal type of ossification. Immunohistochemistry analysis depicted the presence of bone formation indicators-bone morphogenetic protein (BMP), osteocalcin (OCN) and osteopontin (OPN) within newly formed bone. Manufactured personalized construct acts as a "smart" responsive biomaterial capable of modulating the functionality and potential for the personalized bone reconstruction on a clinically relevant length scale.",
journal = "Biomedizinische Technik",
title = "Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction",
volume = "65",
number = "4",
pages = "491-505",
doi = "10.1515/bmt-2019-0218"
}

Micić, M., Antonijević, Đ., Milutinović-Smiljanić, S., Trišić, D., Čolović, B. M., Kosanović, D., Prokić, B. B., Vasić, J., Živković, S., Milašin, J., Danilović, V., Đurić, M. P.,& Jokanović, V. R.. (2020). Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction. in Biomedizinische Technik, 65(4), 491-505.
https://doi.org/10.1515/bmt-2019-0218

Micić M, Antonijević Đ, Milutinović-Smiljanić S, Trišić D, Čolović BM, Kosanović D, Prokić BB, Vasić J, Živković S, Milašin J, Danilović V, Đurić MP, Jokanović VR. Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction. in Biomedizinische Technik. 2020;65(4):491-505.
doi:10.1515/bmt-2019-0218 .

Micić, Milutin, Antonijević, Đorđe, Milutinović-Smiljanić, Sanja, Trišić, Dijana, Čolović, Božana M., Kosanović, Dejana, Prokić, Bogomir Bolka, Vasić, Jugoslav, Živković, Slavoljub, Milašin, Jelena, Danilović, Vesna, Đurić, Marija P., Jokanović, Vukoman R., "Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction" in Biomedizinische Technik, 65, no. 4 (2020):491-505,
https://doi.org/10.1515/bmt-2019-0218 . .

TY  - JOUR
AU  - He, Xian-Long
AU  - Zhang, Ying-Ying
AU  - Mišković, Zoran L.
AU  - Radović, Ivan
AU  - Li, Chun-Zhi
AU  - Song, Yuan-Hong
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8477
AB  - Abstract: A two-component hydrodynamic model is used to investigate low-energy plasmon excitations within the K and K′ valleys of the π electron bands in doped graphene on a dielectric substrate by a slow charged particle moving parallel to the graphene in the presence of a strain-induced pseudomagnetic field in graphene. Calculations of the stopping and the image forces on the moving charge, as well as of the total electrostatic potential in the plane of graphene are performed. The simulation results indicate that the valley polarization of electrons in graphene resulting from the pseudomagnetic field and the electrostatic coupling between graphene and the supporting substrate both have important impact on the stopping and the image forces, affecting the maximum values and the peak positions of those forces, as well as the velocity threshold for the plasmon excitation. In addition, we also study the dependence of the amplitude and period of the wake potential oscillations on the pseudomagnetic field strength, the gap size between graphene and substrate, as well as the incident particle speed. In particular, our results show that the pseudomagnetic field exerts quite strong influence on the period of the wake potential oscillations at the above-threshold particle speeds, especially for small graphene-substrate gap sizes. Graphical abstract: [Figure not available: see fulltext.] © 2020, EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
T1  - Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field
VL  - 74
IS  - 1
SP  - 18
DO  - 10.1140/epjd/e2019-100450-1
ER  - 

@article{
author = "He, Xian-Long and Zhang, Ying-Ying and Mišković, Zoran L. and Radović, Ivan and Li, Chun-Zhi and Song, Yuan-Hong",
year = "2020",
abstract = "Abstract: A two-component hydrodynamic model is used to investigate low-energy plasmon excitations within the K and K′ valleys of the π electron bands in doped graphene on a dielectric substrate by a slow charged particle moving parallel to the graphene in the presence of a strain-induced pseudomagnetic field in graphene. Calculations of the stopping and the image forces on the moving charge, as well as of the total electrostatic potential in the plane of graphene are performed. The simulation results indicate that the valley polarization of electrons in graphene resulting from the pseudomagnetic field and the electrostatic coupling between graphene and the supporting substrate both have important impact on the stopping and the image forces, affecting the maximum values and the peak positions of those forces, as well as the velocity threshold for the plasmon excitation. In addition, we also study the dependence of the amplitude and period of the wake potential oscillations on the pseudomagnetic field strength, the gap size between graphene and substrate, as well as the incident particle speed. In particular, our results show that the pseudomagnetic field exerts quite strong influence on the period of the wake potential oscillations at the above-threshold particle speeds, especially for small graphene-substrate gap sizes. Graphical abstract: [Figure not available: see fulltext.] © 2020, EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics",
title = "Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field",
volume = "74",
number = "1",
pages = "18",
doi = "10.1140/epjd/e2019-100450-1"
}

He, X., Zhang, Y., Mišković, Z. L., Radović, I., Li, C.,& Song, Y.. (2020). Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 74(1), 18.
https://doi.org/10.1140/epjd/e2019-100450-1

He X, Zhang Y, Mišković ZL, Radović I, Li C, Song Y. Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics. 2020;74(1):18.
doi:10.1140/epjd/e2019-100450-1 .

He, Xian-Long, Zhang, Ying-Ying, Mišković, Zoran L., Radović, Ivan, Li, Chun-Zhi, Song, Yuan-Hong, "Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field" in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 74, no. 1 (2020):18,
https://doi.org/10.1140/epjd/e2019-100450-1 . .

TY  - JOUR
AU  - Kisić, Danilo
AU  - Nenadović, Miloš
AU  - Potočnik, Jelena
AU  - Novaković, Mirjana M.
AU  - Noga, Pavol
AU  - Vaňa, Dušan
AU  - Závacká, Anna
AU  - Rakočević, Zlatko Lj.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8587
AB  - Fe/Polyethylene nanocomposite was synthesized by ion beam implantation of 56Fe+ into bulk high-density polyethylene. Nanoscale surface morphology along with magnetic and optical behavior was investigated. The aim of the research was to investigate changes of polyethylene's surface layer morphology with the change of Fe implantation fluence in the high fluence range and to find correlations with the magnetic and optical behavior. Four implantation fluences were applied: 5 × 1016, 1 × 1017, 2 × 1017 and 5 × 1017 cm−2, while the implantation energy was 95 keV. Concentration profiles of implanted Fe were analyzed by Rutherford backscattering spectrometry, showing Fe concentration profile maxima closer to the surface with increasing implantation fluence. Cross-sectional transmission electron microscopy showed the formation of metallic nanoparticles with sizes in a range from below 1 nm up to few tens of nanometers, depending on the fluence, and for the highest implantation fluence, a continuous layer was formed. Magneto-optic Kerr effect magnetometry demonstrates weak ferromagnetic behavior for the 2 higher fluences, and superparamagnetic for the 2 lower fluences. The UV-VIS remission function spectra show the peak in the UV region, which we attribute to iron nanoparticles.
T2  - Vacuum
T1  - Surface layer morphology of the high fluence Fe implanted polyethylene - Correlation with the magnetic and optical behavior
VL  - 171
SP  - 109016
DO  - 10.1016/j.vacuum.2019.109016
ER  - 

@article{
author = "Kisić, Danilo and Nenadović, Miloš and Potočnik, Jelena and Novaković, Mirjana M. and Noga, Pavol and Vaňa, Dušan and Závacká, Anna and Rakočević, Zlatko Lj.",
year = "2020",
abstract = "Fe/Polyethylene nanocomposite was synthesized by ion beam implantation of 56Fe+ into bulk high-density polyethylene. Nanoscale surface morphology along with magnetic and optical behavior was investigated. The aim of the research was to investigate changes of polyethylene's surface layer morphology with the change of Fe implantation fluence in the high fluence range and to find correlations with the magnetic and optical behavior. Four implantation fluences were applied: 5 × 1016, 1 × 1017, 2 × 1017 and 5 × 1017 cm−2, while the implantation energy was 95 keV. Concentration profiles of implanted Fe were analyzed by Rutherford backscattering spectrometry, showing Fe concentration profile maxima closer to the surface with increasing implantation fluence. Cross-sectional transmission electron microscopy showed the formation of metallic nanoparticles with sizes in a range from below 1 nm up to few tens of nanometers, depending on the fluence, and for the highest implantation fluence, a continuous layer was formed. Magneto-optic Kerr effect magnetometry demonstrates weak ferromagnetic behavior for the 2 higher fluences, and superparamagnetic for the 2 lower fluences. The UV-VIS remission function spectra show the peak in the UV region, which we attribute to iron nanoparticles.",
journal = "Vacuum",
title = "Surface layer morphology of the high fluence Fe implanted polyethylene - Correlation with the magnetic and optical behavior",
volume = "171",
pages = "109016",
doi = "10.1016/j.vacuum.2019.109016"
}

Kisić, D., Nenadović, M., Potočnik, J., Novaković, M. M., Noga, P., Vaňa, D., Závacká, A.,& Rakočević, Z. Lj.. (2020). Surface layer morphology of the high fluence Fe implanted polyethylene - Correlation with the magnetic and optical behavior. in Vacuum, 171, 109016.
https://doi.org/10.1016/j.vacuum.2019.109016

Kisić D, Nenadović M, Potočnik J, Novaković MM, Noga P, Vaňa D, Závacká A, Rakočević ZL. Surface layer morphology of the high fluence Fe implanted polyethylene - Correlation with the magnetic and optical behavior. in Vacuum. 2020;171:109016.
doi:10.1016/j.vacuum.2019.109016 .

Kisić, Danilo, Nenadović, Miloš, Potočnik, Jelena, Novaković, Mirjana M., Noga, Pavol, Vaňa, Dušan, Závacká, Anna, Rakočević, Zlatko Lj., "Surface layer morphology of the high fluence Fe implanted polyethylene - Correlation with the magnetic and optical behavior" in Vacuum, 171 (2020):109016,
https://doi.org/10.1016/j.vacuum.2019.109016 . .

TY  - JOUR
AU  - Kisić, Danilo
AU  - Nenadović, Miloš
AU  - Barudžija, Tanja
AU  - Noga, Pavol
AU  - Vaňa, Dušan
AU  - Muška, Martin
AU  - Rakočević, Zlatko Lj.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8646
AB  - In the presented paper, changes of high-density polyethylene's (HDPE) surface properties along with the changes of chemical composition, as a consequence of Fe ion implantation with different fluences, were investigated. Applied implantation fluences were as follows: 5 × 1016, 1 × 1017, 2 × 1017 and 5 × 1017 ions cm−2, while the implantation energy was 95 keV. The samples were analyzed by X-ray photoelectron spectroscopy (XPS), Atomic Force Microscopy (AFM), Four point contact probe, Fourier transform infrared spectroscopy (FTIR) and contact angle measurements. Significant changes in the chemical composition were found by XPS and FTIR, which were followed by changes in surface morphology, increase of roughness, and decrease of sheet resistance that has a percolation threshold that starts for the fluence of 1 × 1017 ions cm−2. Surface free energy increases as a consequence of implantation, up to the fluence of 1 × 1017 ions cm−2, and then decreases for the 2 higher fluences. © 2019 Elsevier B.V.
T2  - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
T1  - Modification of polyethylene’s surface properties by high fluence Fe implantation
VL  - 462
SP  - 143
EP  - 153
DO  - 10.1016/j.nimb.2019.11.022
ER  - 

@article{
author = "Kisić, Danilo and Nenadović, Miloš and Barudžija, Tanja and Noga, Pavol and Vaňa, Dušan and Muška, Martin and Rakočević, Zlatko Lj.",
year = "2020",
abstract = "In the presented paper, changes of high-density polyethylene's (HDPE) surface properties along with the changes of chemical composition, as a consequence of Fe ion implantation with different fluences, were investigated. Applied implantation fluences were as follows: 5 × 1016, 1 × 1017, 2 × 1017 and 5 × 1017 ions cm−2, while the implantation energy was 95 keV. The samples were analyzed by X-ray photoelectron spectroscopy (XPS), Atomic Force Microscopy (AFM), Four point contact probe, Fourier transform infrared spectroscopy (FTIR) and contact angle measurements. Significant changes in the chemical composition were found by XPS and FTIR, which were followed by changes in surface morphology, increase of roughness, and decrease of sheet resistance that has a percolation threshold that starts for the fluence of 1 × 1017 ions cm−2. Surface free energy increases as a consequence of implantation, up to the fluence of 1 × 1017 ions cm−2, and then decreases for the 2 higher fluences. © 2019 Elsevier B.V.",
journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",
title = "Modification of polyethylene’s surface properties by high fluence Fe implantation",
volume = "462",
pages = "143-153",
doi = "10.1016/j.nimb.2019.11.022"
}

Kisić, D., Nenadović, M., Barudžija, T., Noga, P., Vaňa, D., Muška, M.,& Rakočević, Z. Lj.. (2020). Modification of polyethylene’s surface properties by high fluence Fe implantation. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 462, 143-153.
https://doi.org/10.1016/j.nimb.2019.11.022

Kisić D, Nenadović M, Barudžija T, Noga P, Vaňa D, Muška M, Rakočević ZL. Modification of polyethylene’s surface properties by high fluence Fe implantation. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 2020;462:143-153.
doi:10.1016/j.nimb.2019.11.022 .

Kisić, Danilo, Nenadović, Miloš, Barudžija, Tanja, Noga, Pavol, Vaňa, Dušan, Muška, Martin, Rakočević, Zlatko Lj., "Modification of polyethylene’s surface properties by high fluence Fe implantation" in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 462 (2020):143-153,
https://doi.org/10.1016/j.nimb.2019.11.022 . .