TY  - JOUR
AU  - Zagorac, Jelena
AU  - Schön, Johann Christian
AU  - Matović, Branko
AU  - Butulija, Svetlana
AU  - Zagorac, Dejan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13134
AB  - Hafnium carbide (HfC) is a refractory compound known for its exceptional mechanical, thermal, and electrical properties. This compound has gained significant attention in materials science and engineering due to its high melting point, extreme hardness, and excellent thermal stability. This study presents crystal structure prediction via energy landscape explorations of pristine hafnium carbide supplemented by data mining. Apart from the well-known equilibrium rock salt phase, we predict eight new polymorphs of HfC. The predicted HfC phases appear in the energy landscape with known structure types such as the WC type, NiAs type, 5-5 type, sphalerite (ZnS) type, TlI type, and CsCl type; in addition, we predict two new structure types denoted as ortho_HfC and HfC_polytype, respectively. Moreover, we have investigated the structural characteristics and mechanical properties of hafnium carbide at the DFT level of computation, which opens diverse applications in various technological domains.
T2  - Crystals
T1  - Hafnium Carbide: Prediction of Crystalline Structures and Investigation of Mechanical Properties
VL  - 14
IS  - 4
SP  - 340
DO  - 10.3390/cryst14040340
ER  - 

@article{
author = "Zagorac, Jelena and Schön, Johann Christian and Matović, Branko and Butulija, Svetlana and Zagorac, Dejan",
year = "2024",
abstract = "Hafnium carbide (HfC) is a refractory compound known for its exceptional mechanical, thermal, and electrical properties. This compound has gained significant attention in materials science and engineering due to its high melting point, extreme hardness, and excellent thermal stability. This study presents crystal structure prediction via energy landscape explorations of pristine hafnium carbide supplemented by data mining. Apart from the well-known equilibrium rock salt phase, we predict eight new polymorphs of HfC. The predicted HfC phases appear in the energy landscape with known structure types such as the WC type, NiAs type, 5-5 type, sphalerite (ZnS) type, TlI type, and CsCl type; in addition, we predict two new structure types denoted as ortho_HfC and HfC_polytype, respectively. Moreover, we have investigated the structural characteristics and mechanical properties of hafnium carbide at the DFT level of computation, which opens diverse applications in various technological domains.",
journal = "Crystals",
title = "Hafnium Carbide: Prediction of Crystalline Structures and Investigation of Mechanical Properties",
volume = "14",
number = "4",
pages = "340",
doi = "10.3390/cryst14040340"
}

Zagorac, J., Schön, J. C., Matović, B., Butulija, S.,& Zagorac, D.. (2024). Hafnium Carbide: Prediction of Crystalline Structures and Investigation of Mechanical Properties. in Crystals, 14(4), 340.
https://doi.org/10.3390/cryst14040340

Zagorac J, Schön JC, Matović B, Butulija S, Zagorac D. Hafnium Carbide: Prediction of Crystalline Structures and Investigation of Mechanical Properties. in Crystals. 2024;14(4):340.
doi:10.3390/cryst14040340 .

Zagorac, Jelena, Schön, Johann Christian, Matović, Branko, Butulija, Svetlana, Zagorac, Dejan, "Hafnium Carbide: Prediction of Crystalline Structures and Investigation of Mechanical Properties" in Crystals, 14, no. 4 (2024):340,
https://doi.org/10.3390/cryst14040340 . .

TY  - CONF
AU  - Zagorac, Jelena
AU  - Fonović, Matej
AU  - Đukić, Miloš B.
AU  - Butulija, Svetlana
AU  - Prikhna, Tatiana
AU  - Zagorac, Dejan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12918
AB  - In the last few decades, aluminum nitride (AlN) and boron nitride (BN) have become a point of interest to many researchers and scholars from different disciplines around the world. Due to its attractive properties, AlN has been successfully used in various applications, starting from advanced ceramics materials, additive for grain size control in micro-alloyed steels, through optoelectronics and microelectronics, and finally to semiconductors. On the other hand, BN has broad applications in various fields, such as 2D material, lubricant material, superhard and semiconductor material as well as many others. This study focuses on the mixed AlN/BN compounds, in particular, boron-rich AlN and aluminum-rich BN systems, thus having the entire range of AlN/BN compositions. The special focus was on structural properties investigated using the hybrid B3LYP method. Important structural properties were investigated to offer novel technological and industrial applications of mixed AlN/BN materials.
C3  - Procedia Structural Integrity
T1  - Structural properties of full-scope AlN/BN compounds investigated using ab initio calculations
VL  - 54
SP  - 453
EP  - 459
DO  - 10.1016/j.prostr.2024.01.106
ER  - 

@conference{
author = "Zagorac, Jelena and Fonović, Matej and Đukić, Miloš B. and Butulija, Svetlana and Prikhna, Tatiana and Zagorac, Dejan",
year = "2024",
abstract = "In the last few decades, aluminum nitride (AlN) and boron nitride (BN) have become a point of interest to many researchers and scholars from different disciplines around the world. Due to its attractive properties, AlN has been successfully used in various applications, starting from advanced ceramics materials, additive for grain size control in micro-alloyed steels, through optoelectronics and microelectronics, and finally to semiconductors. On the other hand, BN has broad applications in various fields, such as 2D material, lubricant material, superhard and semiconductor material as well as many others. This study focuses on the mixed AlN/BN compounds, in particular, boron-rich AlN and aluminum-rich BN systems, thus having the entire range of AlN/BN compositions. The special focus was on structural properties investigated using the hybrid B3LYP method. Important structural properties were investigated to offer novel technological and industrial applications of mixed AlN/BN materials.",
journal = "Procedia Structural Integrity",
title = "Structural properties of full-scope AlN/BN compounds investigated using ab initio calculations",
volume = "54",
pages = "453-459",
doi = "10.1016/j.prostr.2024.01.106"
}

Zagorac, J., Fonović, M., Đukić, M. B., Butulija, S., Prikhna, T.,& Zagorac, D.. (2024). Structural properties of full-scope AlN/BN compounds investigated using ab initio calculations. in Procedia Structural Integrity, 54, 453-459.
https://doi.org/10.1016/j.prostr.2024.01.106

Zagorac J, Fonović M, Đukić MB, Butulija S, Prikhna T, Zagorac D. Structural properties of full-scope AlN/BN compounds investigated using ab initio calculations. in Procedia Structural Integrity. 2024;54:453-459.
doi:10.1016/j.prostr.2024.01.106 .

Zagorac, Jelena, Fonović, Matej, Đukić, Miloš B., Butulija, Svetlana, Prikhna, Tatiana, Zagorac, Dejan, "Structural properties of full-scope AlN/BN compounds investigated using ab initio calculations" in Procedia Structural Integrity, 54 (2024):453-459,
https://doi.org/10.1016/j.prostr.2024.01.106 . .

TY  - JOUR
AU  - Zmejkoski, Danica
AU  - Zdravković, Nemanja M.
AU  - Budimir Filimonović, Milica D.
AU  - Pavlović, Vladimir B.
AU  - Butulija, Svetlana
AU  - Milivojević, Dušan
AU  - Marković, Zoran M.
AU  - Todorović Marković, Biljana M.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12990
AB  - In this study, nanochitosan dots (ChiDs) were synthesized using gamma rays and encapsulated in bacterial cellulose (BC) polymer matrix for antibiofilm potential in photodynamic therapy. The composites were analyzed for structural changes using SEM, AFM, FTIR, XRD, EPR, and porosity measurements. Additionally, ChiD release was assessed. The results showed that the chemical composition remained unaltered, but ChiD agglomerates embedded in BC changed shape (1.5–2.5 µm). Bacterial cellulose fibers became deformed and interconnected, with increased surface roughness and porosity and decreased crystallinity. No singlet oxygen formation was observed, and the total amount of released ChiD was up to 16.10%. Antibiofilm activity was higher under green light, with reductions ranging from 48 to 57% under blue light and 78 to 85% under green light. Methicillin-resistant Staphylococcus aureus was the most sensitive strain. The new photoactive composite hydrogels show promising potential for combating biofilm-related infections.
T2  - Journal of Functional Biomaterials
T1  - Reduction in Pathogenic Biofilms by the Photoactive Composite of Bacterial Cellulose and Nanochitosan Dots under Blue and Green Light
VL  - 15
IS  - 3
SP  - 72
DO  - 10.3390/jfb15030072
ER  - 

@article{
author = "Zmejkoski, Danica and Zdravković, Nemanja M. and Budimir Filimonović, Milica D. and Pavlović, Vladimir B. and Butulija, Svetlana and Milivojević, Dušan and Marković, Zoran M. and Todorović Marković, Biljana M.",
year = "2024",
abstract = "In this study, nanochitosan dots (ChiDs) were synthesized using gamma rays and encapsulated in bacterial cellulose (BC) polymer matrix for antibiofilm potential in photodynamic therapy. The composites were analyzed for structural changes using SEM, AFM, FTIR, XRD, EPR, and porosity measurements. Additionally, ChiD release was assessed. The results showed that the chemical composition remained unaltered, but ChiD agglomerates embedded in BC changed shape (1.5–2.5 µm). Bacterial cellulose fibers became deformed and interconnected, with increased surface roughness and porosity and decreased crystallinity. No singlet oxygen formation was observed, and the total amount of released ChiD was up to 16.10%. Antibiofilm activity was higher under green light, with reductions ranging from 48 to 57% under blue light and 78 to 85% under green light. Methicillin-resistant Staphylococcus aureus was the most sensitive strain. The new photoactive composite hydrogels show promising potential for combating biofilm-related infections.",
journal = "Journal of Functional Biomaterials",
title = "Reduction in Pathogenic Biofilms by the Photoactive Composite of Bacterial Cellulose and Nanochitosan Dots under Blue and Green Light",
volume = "15",
number = "3",
pages = "72",
doi = "10.3390/jfb15030072"
}

Zmejkoski, D., Zdravković, N. M., Budimir Filimonović, M. D., Pavlović, V. B., Butulija, S., Milivojević, D., Marković, Z. M.,& Todorović Marković, B. M.. (2024). Reduction in Pathogenic Biofilms by the Photoactive Composite of Bacterial Cellulose and Nanochitosan Dots under Blue and Green Light. in Journal of Functional Biomaterials, 15(3), 72.
https://doi.org/10.3390/jfb15030072

Zmejkoski D, Zdravković NM, Budimir Filimonović MD, Pavlović VB, Butulija S, Milivojević D, Marković ZM, Todorović Marković BM. Reduction in Pathogenic Biofilms by the Photoactive Composite of Bacterial Cellulose and Nanochitosan Dots under Blue and Green Light. in Journal of Functional Biomaterials. 2024;15(3):72.
doi:10.3390/jfb15030072 .

Zmejkoski, Danica, Zdravković, Nemanja M., Budimir Filimonović, Milica D., Pavlović, Vladimir B., Butulija, Svetlana, Milivojević, Dušan, Marković, Zoran M., Todorović Marković, Biljana M., "Reduction in Pathogenic Biofilms by the Photoactive Composite of Bacterial Cellulose and Nanochitosan Dots under Blue and Green Light" in Journal of Functional Biomaterials, 15, no. 3 (2024):72,
https://doi.org/10.3390/jfb15030072 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Zagorac, Dejan
AU  - Cvijović-Alagić, Ivana
AU  - Zagorac, Jelena B.
AU  - Butulija, Svetlana
AU  - Erčić, Jelena
AU  - Hanzel, Ondrej
AU  - Sedlák, Richard
AU  - Lisnichuk, Maksym
AU  - Tatarko, Peter
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10083
AB  - High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450°C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as field assisted sintering technique (FAST) at 1450°C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2)Å and 10.5999(2)Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ∼0.7mm2/s for both sintering methods.ResumenSe fabricaron con éxito, mediante sinterización por plasma sin presión y por chispa, los circonatos de tierras raras (RE) de alta entropía con estructura de pirocloro. El compuesto RE2Zr2O7 con composición nominal (La0,2Y0,2Gd0,2Nd0,2Sm0,2)Zr2O7 se preparó mediante un procedimiento simple de nitrato de glicina (GNP). El proceso GNP produjo polvos con baja cristalinidad y después de la posterior calcinación, se formaron cerámicas bien cristalinas. Durante la calcinación coexisten estructuras defectuosas de fluorita (F-RE2Zr2O7) y pirocloro cristalino (Py-RE2Zr2O7). La formación de pirocloro cristalino puro se produce después de la sinterización a 1.450°C. Después de la compactación de polvos y sin presión (PS), así como por la técnica de sinterización asistida en campo (FAST) a 1.450 oC, se obtuvieron cerámicas de alta densidad, libres de aditivos. Se realizaron investigaciones teóricas de los sistemas de pirocloro RE2Zr2O7 de alta entropía. El parámetro de celda unitaria del Py-RE2Zr2O7 obtenido es 105.892(2) Å y 105.999(2) Å para la sinterización PS y FAST, respectivamente, lo que está de acuerdo con los resultados de los cálculos de la teoría funcional de la densidad (DFT). La difusividad térmica de las muestras sinterizadas a temperatura ambiente fue de ∼ 0,7 mm2/s para ambos métodos de sinterización.
T2  - Boletín de la Sociedad Española de Cerámica y Vidrio
T1  - Fabrication and characterization of high entropy pyrochlore ceramics
T1  - Fabricación y caracterización de cerámicas de pirocloro de alta entropía
VL  - 62
IS  - 1
SP  - 66
EP  - 76
DO  - 10.1016/j.bsecv.2021.11.002
ER  - 

@article{
author = "Matović, Branko and Zagorac, Dejan and Cvijović-Alagić, Ivana and Zagorac, Jelena B. and Butulija, Svetlana and Erčić, Jelena and Hanzel, Ondrej and Sedlák, Richard and Lisnichuk, Maksym and Tatarko, Peter",
year = "2023",
abstract = "High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450°C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as field assisted sintering technique (FAST) at 1450°C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2)Å and 10.5999(2)Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ∼0.7mm2/s for both sintering methods.ResumenSe fabricaron con éxito, mediante sinterización por plasma sin presión y por chispa, los circonatos de tierras raras (RE) de alta entropía con estructura de pirocloro. El compuesto RE2Zr2O7 con composición nominal (La0,2Y0,2Gd0,2Nd0,2Sm0,2)Zr2O7 se preparó mediante un procedimiento simple de nitrato de glicina (GNP). El proceso GNP produjo polvos con baja cristalinidad y después de la posterior calcinación, se formaron cerámicas bien cristalinas. Durante la calcinación coexisten estructuras defectuosas de fluorita (F-RE2Zr2O7) y pirocloro cristalino (Py-RE2Zr2O7). La formación de pirocloro cristalino puro se produce después de la sinterización a 1.450°C. Después de la compactación de polvos y sin presión (PS), así como por la técnica de sinterización asistida en campo (FAST) a 1.450 oC, se obtuvieron cerámicas de alta densidad, libres de aditivos. Se realizaron investigaciones teóricas de los sistemas de pirocloro RE2Zr2O7 de alta entropía. El parámetro de celda unitaria del Py-RE2Zr2O7 obtenido es 105.892(2) Å y 105.999(2) Å para la sinterización PS y FAST, respectivamente, lo que está de acuerdo con los resultados de los cálculos de la teoría funcional de la densidad (DFT). La difusividad térmica de las muestras sinterizadas a temperatura ambiente fue de ∼ 0,7 mm2/s para ambos métodos de sinterización.",
journal = "Boletín de la Sociedad Española de Cerámica y Vidrio",
title = "Fabrication and characterization of high entropy pyrochlore ceramics, Fabricación y caracterización de cerámicas de pirocloro de alta entropía",
volume = "62",
number = "1",
pages = "66-76",
doi = "10.1016/j.bsecv.2021.11.002"
}

Matović, B., Zagorac, D., Cvijović-Alagić, I., Zagorac, J. B., Butulija, S., Erčić, J., Hanzel, O., Sedlák, R., Lisnichuk, M.,& Tatarko, P.. (2023). Fabrication and characterization of high entropy pyrochlore ceramics. in Boletín de la Sociedad Española de Cerámica y Vidrio, 62(1), 66-76.
https://doi.org/10.1016/j.bsecv.2021.11.002

Matović B, Zagorac D, Cvijović-Alagić I, Zagorac JB, Butulija S, Erčić J, Hanzel O, Sedlák R, Lisnichuk M, Tatarko P. Fabrication and characterization of high entropy pyrochlore ceramics. in Boletín de la Sociedad Española de Cerámica y Vidrio. 2023;62(1):66-76.
doi:10.1016/j.bsecv.2021.11.002 .

Matović, Branko, Zagorac, Dejan, Cvijović-Alagić, Ivana, Zagorac, Jelena B., Butulija, Svetlana, Erčić, Jelena, Hanzel, Ondrej, Sedlák, Richard, Lisnichuk, Maksym, Tatarko, Peter, "Fabrication and characterization of high entropy pyrochlore ceramics" in Boletín de la Sociedad Española de Cerámica y Vidrio, 62, no. 1 (2023):66-76,
https://doi.org/10.1016/j.bsecv.2021.11.002 . .

TY  - CONF
AU  - Veljković, Filip
AU  - Matović, Branko
AU  - Butulija, Svetlana
AU  - Stoiljković, Milovan
AU  - Stajčić, Ivana
AU  - Janković, Bojan
AU  - Veličković, Suzana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12622
AB  - In the last couple of decades the scientific is making great efforts to investigate the phenomenon of laser-matter interaction, because these knowledge can directly positively influence on technological innovations in the field of materials. This phenomenon are still not fully invetigate since involves a number physical and chemical processes, which take place simultaneously or separated in time and space [1]. The laser desorption/ionization (LDI) implies the following processes: the laser provide a pulse of energy to sample (for a few ns), the sample increases in temperature quickly ( to several thousand degrees), so lead to the production ions, neutrals and electrons in the gass phase [2]. The aim of this paper is to examine the products of the gas phase formed during the interaction of laser- Li1.999Ta0.005SiO3. The Li1.999Ta0.005SiO3 ceramics has a wide application because the melting of lithium metasilicate is used for the calibration of thermocouples, as a flux in glazes and ceramic enamels, dental glass, nuclear waste immobilization as well as ceramic materials for fusion reactors. The knowledge gained should contribute to a better understanding behavior of Li1.999Ta0.005SiO3 in extreme conditions. The experiments were performed on a commercial matrix-assisted laser desorption/ionization mass spectrometer (MALDI MS) with time of flight mass analyzer (Voyager-DE PRO, Sciex, USA), equipped with a nitrogen pulse laser (pulse duration of 3 ns, 20 Hz, and wavelength of 337 nm). The mass spectra were obtained using the LDI (without matrices) positive and negative reflector modes. It is known that the LDI MS is an efficient method for the production and detection of homogeneous and heterogeneous clusters [3]. Preliminary results shows that the ion signals in the negative ion LDI mass spectrum of Li1.999Ta0.005SiO3 correspond to the following species: m/z 59.89 SiO2 -  (calcd 59.97), m/z 71.90 Si2O-  (calcd 71.95), m/z 83.90 Si3 -  (calcd 83.93), m/z 95.91 Si(OH)4 - (calcd 95.99), m/z107.91 Si2(OH)2(H2O)-  (calcd 107.97), m/z 119.92 Si2O4 -  (calcd 119.93), m/z 120.95 Si2O3(OH)-  (calcd 120.94), m/z 131.93 Si3O3 -  (calcd 131.92), m/z 143.92 Si2(OH)2(H2O)3 - (calcd 143.99). The ion signals in the positive mode were attributed to the following cations: LiSi(OH)+  (m/z 52.02, calcd 51.99), Li3(OH)(H2O)+ (m/z 56.04, calcd 56.06), Li2SiO+ (m/z 58.05 calcd 58.00), Li3Si2H2(H2O)+ (m/z 97.15 calcd 97.03), Li5Si2H2O+ (m/z 109.10, calcd 109.04). The results show that silicon-oxygen cluster ions were formed in the negative mode, while lithiumsilicon clusters were detected in the positive mode.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
T1  - Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3
SP  - 46
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12622
ER  - 

@conference{
author = "Veljković, Filip and Matović, Branko and Butulija, Svetlana and Stoiljković, Milovan and Stajčić, Ivana and Janković, Bojan and Veličković, Suzana",
year = "2022",
abstract = "In the last couple of decades the scientific is making great efforts to investigate the phenomenon of laser-matter interaction, because these knowledge can directly positively influence on technological innovations in the field of materials. This phenomenon are still not fully invetigate since involves a number physical and chemical processes, which take place simultaneously or separated in time and space [1]. The laser desorption/ionization (LDI) implies the following processes: the laser provide a pulse of energy to sample (for a few ns), the sample increases in temperature quickly ( to several thousand degrees), so lead to the production ions, neutrals and electrons in the gass phase [2]. The aim of this paper is to examine the products of the gas phase formed during the interaction of laser- Li1.999Ta0.005SiO3. The Li1.999Ta0.005SiO3 ceramics has a wide application because the melting of lithium metasilicate is used for the calibration of thermocouples, as a flux in glazes and ceramic enamels, dental glass, nuclear waste immobilization as well as ceramic materials for fusion reactors. The knowledge gained should contribute to a better understanding behavior of Li1.999Ta0.005SiO3 in extreme conditions. The experiments were performed on a commercial matrix-assisted laser desorption/ionization mass spectrometer (MALDI MS) with time of flight mass analyzer (Voyager-DE PRO, Sciex, USA), equipped with a nitrogen pulse laser (pulse duration of 3 ns, 20 Hz, and wavelength of 337 nm). The mass spectra were obtained using the LDI (without matrices) positive and negative reflector modes. It is known that the LDI MS is an efficient method for the production and detection of homogeneous and heterogeneous clusters [3]. Preliminary results shows that the ion signals in the negative ion LDI mass spectrum of Li1.999Ta0.005SiO3 correspond to the following species: m/z 59.89 SiO2 -  (calcd 59.97), m/z 71.90 Si2O-  (calcd 71.95), m/z 83.90 Si3 -  (calcd 83.93), m/z 95.91 Si(OH)4 - (calcd 95.99), m/z107.91 Si2(OH)2(H2O)-  (calcd 107.97), m/z 119.92 Si2O4 -  (calcd 119.93), m/z 120.95 Si2O3(OH)-  (calcd 120.94), m/z 131.93 Si3O3 -  (calcd 131.92), m/z 143.92 Si2(OH)2(H2O)3 - (calcd 143.99). The ion signals in the positive mode were attributed to the following cations: LiSi(OH)+  (m/z 52.02, calcd 51.99), Li3(OH)(H2O)+ (m/z 56.04, calcd 56.06), Li2SiO+ (m/z 58.05 calcd 58.00), Li3Si2H2(H2O)+ (m/z 97.15 calcd 97.03), Li5Si2H2O+ (m/z 109.10, calcd 109.04). The results show that silicon-oxygen cluster ions were formed in the negative mode, while lithiumsilicon clusters were detected in the positive mode.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts",
title = "Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3",
pages = "46-46",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12622"
}

Veljković, F., Matović, B., Butulija, S., Stoiljković, M., Stajčić, I., Janković, B.,& Veličković, S.. (2022). Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 46-46.
https://hdl.handle.net/21.15107/rcub_vinar_12622

Veljković F, Matović B, Butulija S, Stoiljković M, Stajčić I, Janković B, Veličković S. Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts. 2022;:46-46.
https://hdl.handle.net/21.15107/rcub_vinar_12622 .

Veljković, Filip, Matović, Branko, Butulija, Svetlana, Stoiljković, Milovan, Stajčić, Ivana, Janković, Bojan, Veličković, Suzana, "Laser desorption/ionization mass spectrometry of Li1.999Ta0.005SiO3" in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts (2022):46-46,
https://hdl.handle.net/21.15107/rcub_vinar_12622 .

TY  - JOUR
AU  - Prekajski-Đorđević, Marija
AU  - Zarubica, Aleksandra
AU  - Kalijadis, Ana
AU  - Babić, Biljana
AU  - Butulija, Svetlana
AU  - Maletaškić, Jelena
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11174
AB  - Nanoemulsion technique based on Ouzo effect was applied for the fast and simple synthesis of Ag3PO4 at room temperature. X-ray powder diffraction analysis and Raman spectroscopy reviled that synthesized powder was single-phase. Using scanning electron microscopy analysis, it was found that the synthesized Ag3PO4 particles were near-spherical shape with an average diameter of 100 nm. The high value for the specific surface area of obtained powder was measured by Brunauer–Emmet–Teller method. Finally, the Ag3PO4 product was used as a photocatalyst for the photodegradation of crystal violet dye in an aqueous solution. Nanoemulsion strategy procedure provides a simple pathway to obtain a highly efficient single-phase Ag3PO4 photocatalyst.
T2  - Journal of the Serbian Chemical Society
T1  - Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial
VL  - 87
IS  - 11
SP  - 1285
EP  - 1296
DO  - 10.2298/JSC211103055P
ER  - 

@article{
author = "Prekajski-Đorđević, Marija and Zarubica, Aleksandra and Kalijadis, Ana and Babić, Biljana and Butulija, Svetlana and Maletaškić, Jelena and Matović, Branko",
year = "2022",
abstract = "Nanoemulsion technique based on Ouzo effect was applied for the fast and simple synthesis of Ag3PO4 at room temperature. X-ray powder diffraction analysis and Raman spectroscopy reviled that synthesized powder was single-phase. Using scanning electron microscopy analysis, it was found that the synthesized Ag3PO4 particles were near-spherical shape with an average diameter of 100 nm. The high value for the specific surface area of obtained powder was measured by Brunauer–Emmet–Teller method. Finally, the Ag3PO4 product was used as a photocatalyst for the photodegradation of crystal violet dye in an aqueous solution. Nanoemulsion strategy procedure provides a simple pathway to obtain a highly efficient single-phase Ag3PO4 photocatalyst.",
journal = "Journal of the Serbian Chemical Society",
title = "Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial",
volume = "87",
number = "11",
pages = "1285-1296",
doi = "10.2298/JSC211103055P"
}

Prekajski-Đorđević, M., Zarubica, A., Kalijadis, A., Babić, B., Butulija, S., Maletaškić, J.,& Matović, B.. (2022). Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial. in Journal of the Serbian Chemical Society, 87(11), 1285-1296.
https://doi.org/10.2298/JSC211103055P

Prekajski-Đorđević M, Zarubica A, Kalijadis A, Babić B, Butulija S, Maletaškić J, Matović B. Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial. in Journal of the Serbian Chemical Society. 2022;87(11):1285-1296.
doi:10.2298/JSC211103055P .

Prekajski-Đorđević, Marija, Zarubica, Aleksandra, Kalijadis, Ana, Babić, Biljana, Butulija, Svetlana, Maletaškić, Jelena, Matović, Branko, "Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial" in Journal of the Serbian Chemical Society, 87, no. 11 (2022):1285-1296,
https://doi.org/10.2298/JSC211103055P . .

TY  - JOUR
AU  - Matović, Branko
AU  - Gorshkova, Yulia E.
AU  - Kottsov, Sergey Yu
AU  - Kopitsa, Gennady
AU  - Butulija, Svetlana
AU  - Minović Arsić, T.
AU  - Cvijović-Alagić, Ivana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10073
AB  - The carbon cryogels (CCs) show significant potential for application in a wide variety of applications, from absorbents and catalysts to supercapacitors and fuel cells, due to their high specific surface area, multimodal pore-size distribution, electrical conductivity, and thermo-mechanical stability. In the present study, the CC material was prepared by a sol-gel process from resorcinol with formaldehyde and heat treatment in an inert atmosphere. The Brunauer Emmett Teller (BET) measurements, X-ray diffraction (XRD), Raman spectroscopy, Fourier-transform infrared spectroscopy (FT-IR), differential thermal analysis with thermogravimetric measurements (DTA-TG), scanning electron microscopy (SEM), and small-angle X-ray scattering (SAXS) analysis, as complementary techniques, were used to characterize the obtained CC. It was found that the obtained CC is a porous amorphous material with high open porosity (≈82.5%) and complex porous structure organization. Using the small-angle neutron scattering (SANS) with the contrast variation technique and the adsorption of deuterated water by carbon cryogel it was possible to separately study the structure of open and closed pores, as well as to estimate both the volume fraction of closed pores (φclose pore ≈ 1%) and the total porosity (φtotal ≈ 83.5%) of the obtained CC.
T2  - Diamond and Related Materials
T1  - Carbon cryogel preparation and characterization
VL  - 121
SP  - 108727
DO  - 10.1016/j.diamond.2021.108727
ER  - 

@article{
author = "Matović, Branko and Gorshkova, Yulia E. and Kottsov, Sergey Yu and Kopitsa, Gennady and Butulija, Svetlana and Minović Arsić, T. and Cvijović-Alagić, Ivana",
year = "2022",
abstract = "The carbon cryogels (CCs) show significant potential for application in a wide variety of applications, from absorbents and catalysts to supercapacitors and fuel cells, due to their high specific surface area, multimodal pore-size distribution, electrical conductivity, and thermo-mechanical stability. In the present study, the CC material was prepared by a sol-gel process from resorcinol with formaldehyde and heat treatment in an inert atmosphere. The Brunauer Emmett Teller (BET) measurements, X-ray diffraction (XRD), Raman spectroscopy, Fourier-transform infrared spectroscopy (FT-IR), differential thermal analysis with thermogravimetric measurements (DTA-TG), scanning electron microscopy (SEM), and small-angle X-ray scattering (SAXS) analysis, as complementary techniques, were used to characterize the obtained CC. It was found that the obtained CC is a porous amorphous material with high open porosity (≈82.5%) and complex porous structure organization. Using the small-angle neutron scattering (SANS) with the contrast variation technique and the adsorption of deuterated water by carbon cryogel it was possible to separately study the structure of open and closed pores, as well as to estimate both the volume fraction of closed pores (φclose pore ≈ 1%) and the total porosity (φtotal ≈ 83.5%) of the obtained CC.",
journal = "Diamond and Related Materials",
title = "Carbon cryogel preparation and characterization",
volume = "121",
pages = "108727",
doi = "10.1016/j.diamond.2021.108727"
}

Matović, B., Gorshkova, Y. E., Kottsov, S. Y., Kopitsa, G., Butulija, S., Minović Arsić, T.,& Cvijović-Alagić, I.. (2022). Carbon cryogel preparation and characterization. in Diamond and Related Materials, 121, 108727.
https://doi.org/10.1016/j.diamond.2021.108727

Matović B, Gorshkova YE, Kottsov SY, Kopitsa G, Butulija S, Minović Arsić T, Cvijović-Alagić I. Carbon cryogel preparation and characterization. in Diamond and Related Materials. 2022;121:108727.
doi:10.1016/j.diamond.2021.108727 .

Matović, Branko, Gorshkova, Yulia E., Kottsov, Sergey Yu, Kopitsa, Gennady, Butulija, Svetlana, Minović Arsić, T., Cvijović-Alagić, Ivana, "Carbon cryogel preparation and characterization" in Diamond and Related Materials, 121 (2022):108727,
https://doi.org/10.1016/j.diamond.2021.108727 . .

TY  - JOUR
AU  - Butulija, Svetlana
AU  - Spasojević, Vojislav
AU  - Branković, Goran
AU  - Prekajski-Đorđević, Marija D.
AU  - Radulović, Tamara
AU  - Zarubica, Aleksandra R.
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10159
AB  - Spider silk-maghemite (SS-γ-Fe2O3) composite was obtained by simple and fast co-precipitation method at room temperature. The fibers were coated with maghemite nanoparticles with the average size of 25 nm. According to DTA, maghemite NPs contributed the thermal stability of the composite. Magnetic properties of as obtained composite were estimated. At room temperature, the system was is in a superparamagnetic state, while at temperature of 5 K the magnetic moments were blocked. This composite is seen as a novel hybrid material with superparamagnetic properties for possible applications in bioseparation, biosensors, magnetographic printing, magnetic screens, and magnetic filters as well as sensing/actuating components of MEMS.
T2  - Materials Letters
T1  - Synthesis, characterization and magnetic properties of spider silk coated with maghemite (γ-Fe2O3) nanoparticles
VL  - 314
SP  - 131856
DO  - 10.1016/j.matlet.2022.131856
ER  - 

@article{
author = "Butulija, Svetlana and Spasojević, Vojislav and Branković, Goran and Prekajski-Đorđević, Marija D. and Radulović, Tamara and Zarubica, Aleksandra R. and Matović, Branko",
year = "2022",
abstract = "Spider silk-maghemite (SS-γ-Fe2O3) composite was obtained by simple and fast co-precipitation method at room temperature. The fibers were coated with maghemite nanoparticles with the average size of 25 nm. According to DTA, maghemite NPs contributed the thermal stability of the composite. Magnetic properties of as obtained composite were estimated. At room temperature, the system was is in a superparamagnetic state, while at temperature of 5 K the magnetic moments were blocked. This composite is seen as a novel hybrid material with superparamagnetic properties for possible applications in bioseparation, biosensors, magnetographic printing, magnetic screens, and magnetic filters as well as sensing/actuating components of MEMS.",
journal = "Materials Letters",
title = "Synthesis, characterization and magnetic properties of spider silk coated with maghemite (γ-Fe2O3) nanoparticles",
volume = "314",
pages = "131856",
doi = "10.1016/j.matlet.2022.131856"
}

Butulija, S., Spasojević, V., Branković, G., Prekajski-Đorđević, M. D., Radulović, T., Zarubica, A. R.,& Matović, B.. (2022). Synthesis, characterization and magnetic properties of spider silk coated with maghemite (γ-Fe2O3) nanoparticles. in Materials Letters, 314, 131856.
https://doi.org/10.1016/j.matlet.2022.131856

Butulija S, Spasojević V, Branković G, Prekajski-Đorđević MD, Radulović T, Zarubica AR, Matović B. Synthesis, characterization and magnetic properties of spider silk coated with maghemite (γ-Fe2O3) nanoparticles. in Materials Letters. 2022;314:131856.
doi:10.1016/j.matlet.2022.131856 .

Butulija, Svetlana, Spasojević, Vojislav, Branković, Goran, Prekajski-Đorđević, Marija D., Radulović, Tamara, Zarubica, Aleksandra R., Matović, Branko, "Synthesis, characterization and magnetic properties of spider silk coated with maghemite (γ-Fe2O3) nanoparticles" in Materials Letters, 314 (2022):131856,
https://doi.org/10.1016/j.matlet.2022.131856 . .

TY  - JOUR
AU  - Đukić, Dunja
AU  - Krstić, Aleksandar D.
AU  - Jakovljević, Ksenija
AU  - Butulija, Svetlana
AU  - Anđelković, Ljubica
AU  - Pavlović, Vladimir B.
AU  - Mirković, Miljana M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10233
AB  - Newly designed mesoporous brushite-metakaolin-based geopolymer materials were examined with an idea for using this material as a potential adsorbent for Pb(II) removal from aqueous solutions. As a starting component for geopolymer synthesis, a natural raw kaolinite clay with theaddition of 2 wt.%, 4 wt.%, 6 wt.%, 8 wt.%, and 10 wt.% of pure brushite was used. Phase, structural,morphological, and adsorption properties of newly synthesized mesoporous brushite-metakaolin geopolymer materials were examined in detail by the means of XRPD, FTIR, SEM-EDS, BET/BJH, and ICP-OES methods. The ICP-OES results showed that the synthesized material samples with 2 wt.%, 4 wt.%, and 6 wt.% of brushite possess significant adsorption properties and the mechanisms of the adsorption process can be attributed to chemisorption. The most notable result is that brushite-metakaolin-geopolymer with 2 wt.% of brushite have the best efficiency removal, more than 85% of Pb(II).
T2  - Sustainability
T1  - Brushite-Metakaolin Composite Geopolymer Material as an Effective Adsorbent for Lead Removal from Aqueous Solutions
VL  - 14
IS  - 7
SP  - 4003
DO  - 10.3390/su14074003
ER  - 

@article{
author = "Đukić, Dunja and Krstić, Aleksandar D. and Jakovljević, Ksenija and Butulija, Svetlana and Anđelković, Ljubica and Pavlović, Vladimir B. and Mirković, Miljana M.",
year = "2022",
abstract = "Newly designed mesoporous brushite-metakaolin-based geopolymer materials were examined with an idea for using this material as a potential adsorbent for Pb(II) removal from aqueous solutions. As a starting component for geopolymer synthesis, a natural raw kaolinite clay with theaddition of 2 wt.%, 4 wt.%, 6 wt.%, 8 wt.%, and 10 wt.% of pure brushite was used. Phase, structural,morphological, and adsorption properties of newly synthesized mesoporous brushite-metakaolin geopolymer materials were examined in detail by the means of XRPD, FTIR, SEM-EDS, BET/BJH, and ICP-OES methods. The ICP-OES results showed that the synthesized material samples with 2 wt.%, 4 wt.%, and 6 wt.% of brushite possess significant adsorption properties and the mechanisms of the adsorption process can be attributed to chemisorption. The most notable result is that brushite-metakaolin-geopolymer with 2 wt.% of brushite have the best efficiency removal, more than 85% of Pb(II).",
journal = "Sustainability",
title = "Brushite-Metakaolin Composite Geopolymer Material as an Effective Adsorbent for Lead Removal from Aqueous Solutions",
volume = "14",
number = "7",
pages = "4003",
doi = "10.3390/su14074003"
}

Đukić, D., Krstić, A. D., Jakovljević, K., Butulija, S., Anđelković, L., Pavlović, V. B.,& Mirković, M. M.. (2022). Brushite-Metakaolin Composite Geopolymer Material as an Effective Adsorbent for Lead Removal from Aqueous Solutions. in Sustainability, 14(7), 4003.
https://doi.org/10.3390/su14074003

Đukić D, Krstić AD, Jakovljević K, Butulija S, Anđelković L, Pavlović VB, Mirković MM. Brushite-Metakaolin Composite Geopolymer Material as an Effective Adsorbent for Lead Removal from Aqueous Solutions. in Sustainability. 2022;14(7):4003.
doi:10.3390/su14074003 .

Đukić, Dunja, Krstić, Aleksandar D., Jakovljević, Ksenija, Butulija, Svetlana, Anđelković, Ljubica, Pavlović, Vladimir B., Mirković, Miljana M., "Brushite-Metakaolin Composite Geopolymer Material as an Effective Adsorbent for Lead Removal from Aqueous Solutions" in Sustainability, 14, no. 7 (2022):4003,
https://doi.org/10.3390/su14074003 . .

TY  - JOUR
AU  - Kojić, Marija
AU  - Mihajlović, Marija
AU  - Marinović-Cincović, Milena
AU  - Petrović, Jelena
AU  - Katnić, Đurica
AU  - Krstić, Aleksandar
AU  - Butulija, Svetlana
AU  - Onjia, Antonije E.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10272
AB  - A calcium-pyro-hydrochar (Ca-PHC) can be distinguished as a novel sorbent of Pb2+ and Cd2+ from an aqueous solution. It was obtained using hydrothermal treatment of the spent mushroom substrate (SMS), followed by a CaCl2·5H2O activation and pyrolysis. The characterisation of chars before and after modifications was done by scanning electron microscope (SEM), Brunauer–Emmett–Teller (BET) and Fourier transform infrared (FTIR). Batch experiments were performed to examine Ca-PHC’s sorption properties and binding mechanisms to selected metal ions. The maximum sorption capacities of Ca-PHC for Pb2+ and Cd2+ were 297 mg g−1, and 131 mg g−1, respectively. The obtained results demonstrated that the sorption of Pb2+ and Cd2+ by Ca-PHC follows a pseudo-second kinetic model and Freundlich isotherm. The binding of the selected metals onto Ca-PHC was enabled by the ion-exchange mechanism, surface complexation, mineral precipitation and cation–π interaction. Thermodynamic parameters indicate that metal ions binding by Ca-PHC are spontaneous and endothermic. Due to the high adsorption capacities, the obtained Ca-PHC has good potential for application in industrial wastewater treatment. In addition, the demonstrated use of SMS highlights another possibility of applying this specific biomass relevant to sustainable and economical waste management in the growing mushroom industry.
T2  - Waste Management and Research
T1  - Calcium-pyro-hydrochar derived from the spent mushroom substrate as a functional sorbent of Pb2+ and Cd2+ from aqueous solutions
DO  - 10.1177/0734242X221093951
ER  - 

@article{
author = "Kojić, Marija and Mihajlović, Marija and Marinović-Cincović, Milena and Petrović, Jelena and Katnić, Đurica and Krstić, Aleksandar and Butulija, Svetlana and Onjia, Antonije E.",
year = "2022",
abstract = "A calcium-pyro-hydrochar (Ca-PHC) can be distinguished as a novel sorbent of Pb2+ and Cd2+ from an aqueous solution. It was obtained using hydrothermal treatment of the spent mushroom substrate (SMS), followed by a CaCl2·5H2O activation and pyrolysis. The characterisation of chars before and after modifications was done by scanning electron microscope (SEM), Brunauer–Emmett–Teller (BET) and Fourier transform infrared (FTIR). Batch experiments were performed to examine Ca-PHC’s sorption properties and binding mechanisms to selected metal ions. The maximum sorption capacities of Ca-PHC for Pb2+ and Cd2+ were 297 mg g−1, and 131 mg g−1, respectively. The obtained results demonstrated that the sorption of Pb2+ and Cd2+ by Ca-PHC follows a pseudo-second kinetic model and Freundlich isotherm. The binding of the selected metals onto Ca-PHC was enabled by the ion-exchange mechanism, surface complexation, mineral precipitation and cation–π interaction. Thermodynamic parameters indicate that metal ions binding by Ca-PHC are spontaneous and endothermic. Due to the high adsorption capacities, the obtained Ca-PHC has good potential for application in industrial wastewater treatment. In addition, the demonstrated use of SMS highlights another possibility of applying this specific biomass relevant to sustainable and economical waste management in the growing mushroom industry.",
journal = "Waste Management and Research",
title = "Calcium-pyro-hydrochar derived from the spent mushroom substrate as a functional sorbent of Pb2+ and Cd2+ from aqueous solutions",
doi = "10.1177/0734242X221093951"
}

Kojić, M., Mihajlović, M., Marinović-Cincović, M., Petrović, J., Katnić, Đ., Krstić, A., Butulija, S.,& Onjia, A. E.. (2022). Calcium-pyro-hydrochar derived from the spent mushroom substrate as a functional sorbent of Pb2+ and Cd2+ from aqueous solutions. in Waste Management and Research.
https://doi.org/10.1177/0734242X221093951

Kojić M, Mihajlović M, Marinović-Cincović M, Petrović J, Katnić Đ, Krstić A, Butulija S, Onjia AE. Calcium-pyro-hydrochar derived from the spent mushroom substrate as a functional sorbent of Pb2+ and Cd2+ from aqueous solutions. in Waste Management and Research. 2022;.
doi:10.1177/0734242X221093951 .

Kojić, Marija, Mihajlović, Marija, Marinović-Cincović, Milena, Petrović, Jelena, Katnić, Đurica, Krstić, Aleksandar, Butulija, Svetlana, Onjia, Antonije E., "Calcium-pyro-hydrochar derived from the spent mushroom substrate as a functional sorbent of Pb2+ and Cd2+ from aqueous solutions" in Waste Management and Research (2022),
https://doi.org/10.1177/0734242X221093951 . .

TY  - CONF
AU  - Zagorac, Dejan
AU  - Cvijović-Alagić, Ivana
AU  - Zagorac, Jelena
AU  - Butulija, Svetlana
AU  - Erčić, Jelena
AU  - Hanzel, Ondrej
AU  - Sedlak, Richard
AU  - Lisnichuk, Maksym
AU  - Škundrić, Tamara
AU  - Pejić, Milan
AU  - Jovanović, Dušica
AU  - Tatarko, Peter
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11329
AB  - High-Entropy Alloys (HEAs) have attracted considerable interest due to the combination of useful properties and enhanced applications, and a few HEAs have already been shown to possess exceptional properties under extreme conditions (e.g. Ultra-High Temperature Ceramic (UHTC)). However, predicting the formation, structures, and stability of HEAs is one of the major goals of recent studies, which is expected to bring discovery of new systems with enhanced properties of the material, with special attention on high temperature and mechanical load. Here, we show an example of high-entropy rare-earth (RE) zirconates with a pyrochlore structure that was examined theoretically and experimentally observed. Theoretical methods were applied to investigate the variable composition of the ordered and disordered pyrochlore structures using quantum mechanics, group action theory, PCAE, and supercell methods. The investigated RE2Zr2O7 compound was successfully fabricated by pressureless and spark plasma sintering. with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7, prepared by simple glycine nitrate procedure (GNP) and characterized using various experimental methods (XRD, SEM, TEM, Raman, etc.). [1] Pyrochlore structures were generated using the Primitive Cell Approach for Atom Exchange (PCAE) method [2] or the supercell approach using the Crystal17 program package [3], and investigation of disordered systems and solid solutions was conducted using the group action theory [4]. Structural optimization on the ab initio level was performed using the Crystal17 code, based on a Linear Combination of Atomic Orbitals (LCAO). Density functional theory (DFT) calculations were utilized in the present study, using the local density approximation (LDA) with Perdew–Zunger (PZ) correlation functional.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
T1  - DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC)
SP  - 43
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11329
ER  - 

@conference{
author = "Zagorac, Dejan and Cvijović-Alagić, Ivana and Zagorac, Jelena and Butulija, Svetlana and Erčić, Jelena and Hanzel, Ondrej and Sedlak, Richard and Lisnichuk, Maksym and Škundrić, Tamara and Pejić, Milan and Jovanović, Dušica and Tatarko, Peter and Matović, Branko",
year = "2022",
abstract = "High-Entropy Alloys (HEAs) have attracted considerable interest due to the combination of useful properties and enhanced applications, and a few HEAs have already been shown to possess exceptional properties under extreme conditions (e.g. Ultra-High Temperature Ceramic (UHTC)). However, predicting the formation, structures, and stability of HEAs is one of the major goals of recent studies, which is expected to bring discovery of new systems with enhanced properties of the material, with special attention on high temperature and mechanical load. Here, we show an example of high-entropy rare-earth (RE) zirconates with a pyrochlore structure that was examined theoretically and experimentally observed. Theoretical methods were applied to investigate the variable composition of the ordered and disordered pyrochlore structures using quantum mechanics, group action theory, PCAE, and supercell methods. The investigated RE2Zr2O7 compound was successfully fabricated by pressureless and spark plasma sintering. with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7, prepared by simple glycine nitrate procedure (GNP) and characterized using various experimental methods (XRD, SEM, TEM, Raman, etc.). [1] Pyrochlore structures were generated using the Primitive Cell Approach for Atom Exchange (PCAE) method [2] or the supercell approach using the Crystal17 program package [3], and investigation of disordered systems and solid solutions was conducted using the group action theory [4]. Structural optimization on the ab initio level was performed using the Crystal17 code, based on a Linear Combination of Atomic Orbitals (LCAO). Density functional theory (DFT) calculations were utilized in the present study, using the local density approximation (LDA) with Perdew–Zunger (PZ) correlation functional.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts",
title = "DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC)",
pages = "43",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11329"
}

Zagorac, D., Cvijović-Alagić, I., Zagorac, J., Butulija, S., Erčić, J., Hanzel, O., Sedlak, R., Lisnichuk, M., Škundrić, T., Pejić, M., Jovanović, D., Tatarko, P.,& Matović, B.. (2022). DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC). in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 43.
https://hdl.handle.net/21.15107/rcub_vinar_11329

Zagorac D, Cvijović-Alagić I, Zagorac J, Butulija S, Erčić J, Hanzel O, Sedlak R, Lisnichuk M, Škundrić T, Pejić M, Jovanović D, Tatarko P, Matović B. DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC). in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts. 2022;:43.
https://hdl.handle.net/21.15107/rcub_vinar_11329 .

Zagorac, Dejan, Cvijović-Alagić, Ivana, Zagorac, Jelena, Butulija, Svetlana, Erčić, Jelena, Hanzel, Ondrej, Sedlak, Richard, Lisnichuk, Maksym, Škundrić, Tamara, Pejić, Milan, Jovanović, Dušica, Tatarko, Peter, Matović, Branko, "DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC)" in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts (2022):43,
https://hdl.handle.net/21.15107/rcub_vinar_11329 .

TY  - CONF
AU  - Cvijović-Alagić, Ivana
AU  - Zagorac, Dejan
AU  - Zagorac, Jelena
AU  - Butulija, Svetlana
AU  - Erčić, Jelena
AU  - Hanzel, Ondrej
AU  - Sedlak, Richard
AU  - Lisnichuk, Maksym
AU  - Škundrić, Tamara
AU  - Pejić, Milan
AU  - Jovanović, Dušica
AU  - Tatarko, Peter
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11331
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia
T1  - Structural and mechanical properties of highentropy alloys (HEAS) - ultra-high temperature ceramics (UHTC) on DFT level
SP  - 80
EP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11331
ER  - 

@conference{
author = "Cvijović-Alagić, Ivana and Zagorac, Dejan and Zagorac, Jelena and Butulija, Svetlana and Erčić, Jelena and Hanzel, Ondrej and Sedlak, Richard and Lisnichuk, Maksym and Škundrić, Tamara and Pejić, Milan and Jovanović, Dušica and Tatarko, Peter and Matović, Branko",
year = "2022",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia",
title = "Structural and mechanical properties of highentropy alloys (HEAS) - ultra-high temperature ceramics (UHTC) on DFT level",
pages = "80-81",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11331"
}

Cvijović-Alagić, I., Zagorac, D., Zagorac, J., Butulija, S., Erčić, J., Hanzel, O., Sedlak, R., Lisnichuk, M., Škundrić, T., Pejić, M., Jovanović, D., Tatarko, P.,& Matović, B.. (2022). Structural and mechanical properties of highentropy alloys (HEAS) - ultra-high temperature ceramics (UHTC) on DFT level. in Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 80-81.
https://hdl.handle.net/21.15107/rcub_vinar_11331

Cvijović-Alagić I, Zagorac D, Zagorac J, Butulija S, Erčić J, Hanzel O, Sedlak R, Lisnichuk M, Škundrić T, Pejić M, Jovanović D, Tatarko P, Matović B. Structural and mechanical properties of highentropy alloys (HEAS) - ultra-high temperature ceramics (UHTC) on DFT level. in Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia. 2022;:80-81.
https://hdl.handle.net/21.15107/rcub_vinar_11331 .

Cvijović-Alagić, Ivana, Zagorac, Dejan, Zagorac, Jelena, Butulija, Svetlana, Erčić, Jelena, Hanzel, Ondrej, Sedlak, Richard, Lisnichuk, Maksym, Škundrić, Tamara, Pejić, Milan, Jovanović, Dušica, Tatarko, Peter, Matović, Branko, "Structural and mechanical properties of highentropy alloys (HEAS) - ultra-high temperature ceramics (UHTC) on DFT level" in Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia (2022):80-81,
https://hdl.handle.net/21.15107/rcub_vinar_11331 .

TY  - CONF
AU  - Matović, Branko
AU  - Zagorac, Dejan
AU  - Cvijović-Alagić, Ivana
AU  - Zagorac, Jelena
AU  - Butulija, Svetlana
AU  - Erčić, Jelena
AU  - Hanzel, Ondrej
AU  - Sedlak, Richard
AU  - Lisnichuk, Maksym
AU  - Tatarko, Peter
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11332
AB  - High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450 C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as Field Assisted Sintering Technique (FAST) at 1450 C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2) Å and 10.5999(2) Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ~0.7 mm2 /s for both sintering methods.
PB  - Belgrade : Materials Research Society of Serbia – MRS-Serbia
C3  - 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
T1  - Fabrication and characterization of high entropy pyrochlore ceramics
VL  - XLV
SP  - 115
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11332
ER  - 

@conference{
author = "Matović, Branko and Zagorac, Dejan and Cvijović-Alagić, Ivana and Zagorac, Jelena and Butulija, Svetlana and Erčić, Jelena and Hanzel, Ondrej and Sedlak, Richard and Lisnichuk, Maksym and Tatarko, Peter",
year = "2022",
abstract = "High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450 C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as Field Assisted Sintering Technique (FAST) at 1450 C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2) Å and 10.5999(2) Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ~0.7 mm2 /s for both sintering methods.",
publisher = "Belgrade : Materials Research Society of Serbia – MRS-Serbia",
journal = "23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts",
title = "Fabrication and characterization of high entropy pyrochlore ceramics",
volume = "XLV",
pages = "115",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11332"
}

Matović, B., Zagorac, D., Cvijović-Alagić, I., Zagorac, J., Butulija, S., Erčić, J., Hanzel, O., Sedlak, R., Lisnichuk, M.,& Tatarko, P.. (2022). Fabrication and characterization of high entropy pyrochlore ceramics. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
Belgrade : Materials Research Society of Serbia – MRS-Serbia., XLV, 115.
https://hdl.handle.net/21.15107/rcub_vinar_11332

Matović B, Zagorac D, Cvijović-Alagić I, Zagorac J, Butulija S, Erčić J, Hanzel O, Sedlak R, Lisnichuk M, Tatarko P. Fabrication and characterization of high entropy pyrochlore ceramics. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts. 2022;XLV:115.
https://hdl.handle.net/21.15107/rcub_vinar_11332 .

Matović, Branko, Zagorac, Dejan, Cvijović-Alagić, Ivana, Zagorac, Jelena, Butulija, Svetlana, Erčić, Jelena, Hanzel, Ondrej, Sedlak, Richard, Lisnichuk, Maksym, Tatarko, Peter, "Fabrication and characterization of high entropy pyrochlore ceramics" in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts, XLV (2022):115,
https://hdl.handle.net/21.15107/rcub_vinar_11332 .

TY  - CONF
AU  - Stojanović, Nemanja
AU  - Zagorac, Dejan
AU  - Butulija, Svetlana
AU  - Lojpur, Vesna
AU  - Kalezić-Glišović, Aleksandra
AU  - Obradović, Nina
AU  - Maričić, Aleksa
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10836
AB  - Mixtures of high purity powders of 50 mass% Fe, 4 mass% Pb, 3 mass% Zr and 43 mass% BaTiO3 were activated in a rotary ball mill for durations ranging from 30 min to 300 min; samples were then sintered in the air atmosphere for 2 hours at 1200 °C. Crystal structure prediction has been performed using Bond ValenceCalculation (BVC) method.Moreover, theoretical stability of theperovskite structure for synthesized and calculated Fe/Pb/Zr-co- doped barium titanatecompounds has been investigated using the Goldschmidttolerance factor (Gt) and global instability index (GII).It was observed that magnetization of the system decreased after the sintering, with the most dramatic drop of 90.11% belonging to the sample activated for 150 min. In comparison with initial powders, X-ray powder diffractiondata confirmed the presence of newphases of BaFe 12 O19 and Ba1.696 Ti0.228 O3 in sintered samples. Utilizing the field emission scanning electron microscopy (FESEM), it was found that with the increase of activation time the morphology of the samples progressed from irregural, spherical grains to mostly rod-like ones. Energy dispersive X-ray (EDX) analysis identified the presence of Pb and Zr occupying the same locations on the surface of sintered samples, whilst Fe was uniformly deployed regardless of the activation time.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Structural And Functional Investigation Of Fe/Pb/Zr-co-doped Barium Titanate Ceramics: From Theory To The Experiment
SP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10836
ER  - 

@conference{
author = "Stojanović, Nemanja and Zagorac, Dejan and Butulija, Svetlana and Lojpur, Vesna and Kalezić-Glišović, Aleksandra and Obradović, Nina and Maričić, Aleksa",
year = "2021",
abstract = "Mixtures of high purity powders of 50 mass% Fe, 4 mass% Pb, 3 mass% Zr and 43 mass% BaTiO3 were activated in a rotary ball mill for durations ranging from 30 min to 300 min; samples were then sintered in the air atmosphere for 2 hours at 1200 °C. Crystal structure prediction has been performed using Bond ValenceCalculation (BVC) method.Moreover, theoretical stability of theperovskite structure for synthesized and calculated Fe/Pb/Zr-co- doped barium titanatecompounds has been investigated using the Goldschmidttolerance factor (Gt) and global instability index (GII).It was observed that magnetization of the system decreased after the sintering, with the most dramatic drop of 90.11% belonging to the sample activated for 150 min. In comparison with initial powders, X-ray powder diffractiondata confirmed the presence of newphases of BaFe 12 O19 and Ba1.696 Ti0.228 O3 in sintered samples. Utilizing the field emission scanning electron microscopy (FESEM), it was found that with the increase of activation time the morphology of the samples progressed from irregural, spherical grains to mostly rod-like ones. Energy dispersive X-ray (EDX) analysis identified the presence of Pb and Zr occupying the same locations on the surface of sintered samples, whilst Fe was uniformly deployed regardless of the activation time.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Structural And Functional Investigation Of Fe/Pb/Zr-co-doped Barium Titanate Ceramics: From Theory To The Experiment",
pages = "77",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10836"
}

Stojanović, N., Zagorac, D., Butulija, S., Lojpur, V., Kalezić-Glišović, A., Obradović, N.,& Maričić, A.. (2021). Structural And Functional Investigation Of Fe/Pb/Zr-co-doped Barium Titanate Ceramics: From Theory To The Experiment. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 77.
https://hdl.handle.net/21.15107/rcub_vinar_10836

Stojanović N, Zagorac D, Butulija S, Lojpur V, Kalezić-Glišović A, Obradović N, Maričić A. Structural And Functional Investigation Of Fe/Pb/Zr-co-doped Barium Titanate Ceramics: From Theory To The Experiment. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:77.
https://hdl.handle.net/21.15107/rcub_vinar_10836 .

Stojanović, Nemanja, Zagorac, Dejan, Butulija, Svetlana, Lojpur, Vesna, Kalezić-Glišović, Aleksandra, Obradović, Nina, Maričić, Aleksa, "Structural And Functional Investigation Of Fe/Pb/Zr-co-doped Barium Titanate Ceramics: From Theory To The Experiment" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):77,
https://hdl.handle.net/21.15107/rcub_vinar_10836 .

TY  - JOUR
AU  - Matović, Branko
AU  - Butulija, Svetlana
AU  - Dohčević-Mitrović, Zorana
AU  - Minović-Arsić, Tamara
AU  - Luković, Jelena M.
AU  - Bošković, Snežana B.
AU  - Maletaškić, Jelena
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8572
AB  - Nanosized Ag-doped ceria (Ce1-xAlxO2-δ)powders (0.1 ≤ x ≤ 0.04) were obtained by self-propagating room temperature reaction. The solid solubility of Ag into ceria lattice was the highest reported so far. X-ray diffraction analysis and field emission scanning microscopy results showed that the doped samples are single phase solid solutions with fluorite-type structure and all prepared powders were nanometric in size. The average size of Ce1-xAgxO2-▯ particles lies at about 4 nm. Raman spectra revealed an increase in the amount of oxygen vacancies with the increase of Ag concentration, such as is foreseen. The thermal stability of solid solution was followed by XRD. Microstructure development was studied by scanning electron microscopy. By controlling the processing variables, it was possible to obtain high density samples with homogeneous microstructure at low sintering temperature. © 2020 Elsevier Ltd
T2  - Journal of the European Ceramic Society
T1  - Synthesis, densification and characterization of Ag doped ceria nanopowders
VL  - 40
IS  - 5
SP  - 1983
EP  - 1988
DO  - 10.1016/j.jeurceramsoc.2020.01.013
ER  - 

@article{
author = "Matović, Branko and Butulija, Svetlana and Dohčević-Mitrović, Zorana and Minović-Arsić, Tamara and Luković, Jelena M. and Bošković, Snežana B. and Maletaškić, Jelena",
year = "2020",
abstract = "Nanosized Ag-doped ceria (Ce1-xAlxO2-δ)powders (0.1 ≤ x ≤ 0.04) were obtained by self-propagating room temperature reaction. The solid solubility of Ag into ceria lattice was the highest reported so far. X-ray diffraction analysis and field emission scanning microscopy results showed that the doped samples are single phase solid solutions with fluorite-type structure and all prepared powders were nanometric in size. The average size of Ce1-xAgxO2-▯ particles lies at about 4 nm. Raman spectra revealed an increase in the amount of oxygen vacancies with the increase of Ag concentration, such as is foreseen. The thermal stability of solid solution was followed by XRD. Microstructure development was studied by scanning electron microscopy. By controlling the processing variables, it was possible to obtain high density samples with homogeneous microstructure at low sintering temperature. © 2020 Elsevier Ltd",
journal = "Journal of the European Ceramic Society",
title = "Synthesis, densification and characterization of Ag doped ceria nanopowders",
volume = "40",
number = "5",
pages = "1983-1988",
doi = "10.1016/j.jeurceramsoc.2020.01.013"
}

Matović, B., Butulija, S., Dohčević-Mitrović, Z., Minović-Arsić, T., Luković, J. M., Bošković, S. B.,& Maletaškić, J.. (2020). Synthesis, densification and characterization of Ag doped ceria nanopowders. in Journal of the European Ceramic Society, 40(5), 1983-1988.
https://doi.org/10.1016/j.jeurceramsoc.2020.01.013

Matović B, Butulija S, Dohčević-Mitrović Z, Minović-Arsić T, Luković JM, Bošković SB, Maletaškić J. Synthesis, densification and characterization of Ag doped ceria nanopowders. in Journal of the European Ceramic Society. 2020;40(5):1983-1988.
doi:10.1016/j.jeurceramsoc.2020.01.013 .

Matović, Branko, Butulija, Svetlana, Dohčević-Mitrović, Zorana, Minović-Arsić, Tamara, Luković, Jelena M., Bošković, Snežana B., Maletaškić, Jelena, "Synthesis, densification and characterization of Ag doped ceria nanopowders" in Journal of the European Ceramic Society, 40, no. 5 (2020):1983-1988,
https://doi.org/10.1016/j.jeurceramsoc.2020.01.013 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Nikolić, Marko G.
AU  - Prekajski-Đorđević, Marija D.
AU  - Dmitrović, Svetlana
AU  - Luković, Jelena M.
AU  - Maletaškić, Jelena
AU  - Jelenković, Branislav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9938
AB  - Europium doped mayenite (C12A7) powders of different concentrations (0.5, 1.0, 1.5, and 2.0 at.%) have been synthesized by a modified glycine/nitrate procedure - MGNP). Obtained samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE- SEM), and steady-state photoluminescence spectroscopy. The effect of doping concentration on photoluminescence properties of Eu3+ doped mayenite was studied and discussed. With the increasing of Eu3+ doping concentration, the red-emitting intensity exhibited behavior that increased firstly and then decreased. The optimal Eu3+ ion concentration is found to be 1.5%. High-pressure luminescence was measured in a Betsa high-pressure membrane diamond anvil cell up to 23 GPa.
T2  - Journal of Innovative Materials in Extreme Conditions
T1  - Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure
VL  - 1
IS  - 1
SP  - 12
EP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9938
ER  - 

@article{
author = "Matović, Branko and Nikolić, Marko G. and Prekajski-Đorđević, Marija D. and Dmitrović, Svetlana and Luković, Jelena M. and Maletaškić, Jelena and Jelenković, Branislav",
year = "2020",
abstract = "Europium doped mayenite (C12A7) powders of different concentrations (0.5, 1.0, 1.5, and 2.0 at.%) have been synthesized by a modified glycine/nitrate procedure - MGNP). Obtained samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE- SEM), and steady-state photoluminescence spectroscopy. The effect of doping concentration on photoluminescence properties of Eu3+ doped mayenite was studied and discussed. With the increasing of Eu3+ doping concentration, the red-emitting intensity exhibited behavior that increased firstly and then decreased. The optimal Eu3+ ion concentration is found to be 1.5%. High-pressure luminescence was measured in a Betsa high-pressure membrane diamond anvil cell up to 23 GPa.",
journal = "Journal of Innovative Materials in Extreme Conditions",
title = "Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure",
volume = "1",
number = "1",
pages = "12-18",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9938"
}

Matović, B., Nikolić, M. G., Prekajski-Đorđević, M. D., Dmitrović, S., Luković, J. M., Maletaškić, J.,& Jelenković, B.. (2020). Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure. in Journal of Innovative Materials in Extreme Conditions, 1(1), 12-18.
https://hdl.handle.net/21.15107/rcub_vinar_9938

Matović B, Nikolić MG, Prekajski-Đorđević MD, Dmitrović S, Luković JM, Maletaškić J, Jelenković B. Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure. in Journal of Innovative Materials in Extreme Conditions. 2020;1(1):12-18.
https://hdl.handle.net/21.15107/rcub_vinar_9938 .

Matović, Branko, Nikolić, Marko G., Prekajski-Đorđević, Marija D., Dmitrović, Svetlana, Luković, Jelena M., Maletaškić, Jelena, Jelenković, Branislav, "Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure" in Journal of Innovative Materials in Extreme Conditions, 1, no. 1 (2020):12-18,
https://hdl.handle.net/21.15107/rcub_vinar_9938 .

TY  - JOUR
AU  - Obradović, Nina
AU  - Gigov, Mihajlo
AU  - Đorđević, Aleksandar
AU  - Kern, Frank
AU  - Dmitrović, Svetlana
AU  - Matović, Branko
AU  - Ðorđević, Antonije
AU  - Tshantshapanyan, Ani
AU  - Vlahović, Branislav
AU  - Petrović, Predrag
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8443
AB  - The paper presents results of the influence of mechanical activation of shungite, a carbon-mineral rock material rich in silica and carbon, on its sintering behaviour, and obtaining of pure SiC ceramics. The mechanical activation of the starting powder was performed in a high-energy ball mill in time intervals from 30 to 480 min. The phase composition of the starting powders and sintered samples was analysed by the X-ray diffraction method. The first traces of SiC were detected after sintering at 1350 °C for 2 h in an Ar atmosphere, along with traces of unreacted SiO2. The scanning electron microscopy was performed in order to determine changes in the microstructure. Sintering was performed at various temperatures for 2 h, in an Ar atmosphere and a vacuum. Dielectric properties of the sintered samples were measured in the frequency range from 1 to 500 MHz. The obtained results indicate that the sintered powder is a good candidate for applications as an absorber of electromagnetic waves in microwave engineering. © 2019 University of Novi Sad, Faculty of Technology. All rights reserved.
T2  - Processing and Application of Ceramics
T1  - Shungite – a carbon-mineral rock material: Its sinterability and possible applications
VL  - 13
IS  - 1
SP  - 89
EP  - 97
DO  - 10.2298/PAC1901089O
ER  - 

@article{
author = "Obradović, Nina and Gigov, Mihajlo and Đorđević, Aleksandar and Kern, Frank and Dmitrović, Svetlana and Matović, Branko and Ðorđević, Antonije and Tshantshapanyan, Ani and Vlahović, Branislav and Petrović, Predrag and Pavlović, Vladimir B.",
year = "2019",
abstract = "The paper presents results of the influence of mechanical activation of shungite, a carbon-mineral rock material rich in silica and carbon, on its sintering behaviour, and obtaining of pure SiC ceramics. The mechanical activation of the starting powder was performed in a high-energy ball mill in time intervals from 30 to 480 min. The phase composition of the starting powders and sintered samples was analysed by the X-ray diffraction method. The first traces of SiC were detected after sintering at 1350 °C for 2 h in an Ar atmosphere, along with traces of unreacted SiO2. The scanning electron microscopy was performed in order to determine changes in the microstructure. Sintering was performed at various temperatures for 2 h, in an Ar atmosphere and a vacuum. Dielectric properties of the sintered samples were measured in the frequency range from 1 to 500 MHz. The obtained results indicate that the sintered powder is a good candidate for applications as an absorber of electromagnetic waves in microwave engineering. © 2019 University of Novi Sad, Faculty of Technology. All rights reserved.",
journal = "Processing and Application of Ceramics",
title = "Shungite – a carbon-mineral rock material: Its sinterability and possible applications",
volume = "13",
number = "1",
pages = "89-97",
doi = "10.2298/PAC1901089O"
}

Obradović, N., Gigov, M., Đorđević, A., Kern, F., Dmitrović, S., Matović, B., Ðorđević, A., Tshantshapanyan, A., Vlahović, B., Petrović, P.,& Pavlović, V. B.. (2019). Shungite – a carbon-mineral rock material: Its sinterability and possible applications. in Processing and Application of Ceramics, 13(1), 89-97.
https://doi.org/10.2298/PAC1901089O

Obradović N, Gigov M, Đorđević A, Kern F, Dmitrović S, Matović B, Ðorđević A, Tshantshapanyan A, Vlahović B, Petrović P, Pavlović VB. Shungite – a carbon-mineral rock material: Its sinterability and possible applications. in Processing and Application of Ceramics. 2019;13(1):89-97.
doi:10.2298/PAC1901089O .

Obradović, Nina, Gigov, Mihajlo, Đorđević, Aleksandar, Kern, Frank, Dmitrović, Svetlana, Matović, Branko, Ðorđević, Antonije, Tshantshapanyan, Ani, Vlahović, Branislav, Petrović, Predrag, Pavlović, Vladimir B., "Shungite – a carbon-mineral rock material: Its sinterability and possible applications" in Processing and Application of Ceramics, 13, no. 1 (2019):89-97,
https://doi.org/10.2298/PAC1901089O . .

TY  - JOUR
AU  - Zmejkoski, Danica
AU  - Spasojević, Dragica
AU  - Orlovska, Irina V.
AU  - Kozyrovska, Natalia O.
AU  - Soković, Marina
AU  - Glamočlija, Jasmina
AU  - Dmitrović, Svetlana
AU  - Matović, Branko
AU  - Tasić, Nikola B.
AU  - Maksimović, Vuk M.
AU  - Sosnin, Mikhail
AU  - Radotić, Ksenija
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7769
AB  - Lignins and lignin-derived compounds are known to have antibacterial properties. The wound healing agents in the form of dressings produce faster skin repair and decrease pain in patients. In order to create an efficient antimicrobial agent in the form of dressing in the treatment of chronic wounds, a composite hydrogel of bacterial cellulose (BC) and dehydrogenative polymer of coniferyl alcohol (DHP), BC-DHP, was designed. Novel composite showed inhibitory or bactericidal effects against selected pathogenic bacteria, including clinically isolated ones. The highest release rate of DHP was in the first hour, while after 24 h there was still slow release of small amounts of DHP from BC-DHP during 72 h monitoring. High-performance liquid chromatography coupled with mass-spectrometry showed that BC-DHP releases DHP oligomers, which are proposed to be antimicrobially active DHP fractions. Scanning electron microscopy and atomic force microscopy micrographs proved a dose-dependent interaction of DHP with BC, which resulted in a decrease of the pore number and size in the cellulose membrane. The Fourier-transform infrared absorption spectra of the BC-DHP showed that DHP was partly bound to the BC matrix. The swelling and crystallinity degree were dose-dependent. All obtained results confirmed BC-DHP composite as a promising hydrogel for wounds healing.
T2  - International Journal of Biological Macromolecules
T1  - Bacterial cellulose-lignin composite hydrogel as a promising agent in chronic wound healing
VL  - 118
SP  - 494
EP  - 503
DO  - 10.1016/j.ijbiomac.2018.06.067
ER  - 

@article{
author = "Zmejkoski, Danica and Spasojević, Dragica and Orlovska, Irina V. and Kozyrovska, Natalia O. and Soković, Marina and Glamočlija, Jasmina and Dmitrović, Svetlana and Matović, Branko and Tasić, Nikola B. and Maksimović, Vuk M. and Sosnin, Mikhail and Radotić, Ksenija",
year = "2018",
abstract = "Lignins and lignin-derived compounds are known to have antibacterial properties. The wound healing agents in the form of dressings produce faster skin repair and decrease pain in patients. In order to create an efficient antimicrobial agent in the form of dressing in the treatment of chronic wounds, a composite hydrogel of bacterial cellulose (BC) and dehydrogenative polymer of coniferyl alcohol (DHP), BC-DHP, was designed. Novel composite showed inhibitory or bactericidal effects against selected pathogenic bacteria, including clinically isolated ones. The highest release rate of DHP was in the first hour, while after 24 h there was still slow release of small amounts of DHP from BC-DHP during 72 h monitoring. High-performance liquid chromatography coupled with mass-spectrometry showed that BC-DHP releases DHP oligomers, which are proposed to be antimicrobially active DHP fractions. Scanning electron microscopy and atomic force microscopy micrographs proved a dose-dependent interaction of DHP with BC, which resulted in a decrease of the pore number and size in the cellulose membrane. The Fourier-transform infrared absorption spectra of the BC-DHP showed that DHP was partly bound to the BC matrix. The swelling and crystallinity degree were dose-dependent. All obtained results confirmed BC-DHP composite as a promising hydrogel for wounds healing.",
journal = "International Journal of Biological Macromolecules",
title = "Bacterial cellulose-lignin composite hydrogel as a promising agent in chronic wound healing",
volume = "118",
pages = "494-503",
doi = "10.1016/j.ijbiomac.2018.06.067"
}

Zmejkoski, D., Spasojević, D., Orlovska, I. V., Kozyrovska, N. O., Soković, M., Glamočlija, J., Dmitrović, S., Matović, B., Tasić, N. B., Maksimović, V. M., Sosnin, M.,& Radotić, K.. (2018). Bacterial cellulose-lignin composite hydrogel as a promising agent in chronic wound healing. in International Journal of Biological Macromolecules, 118, 494-503.
https://doi.org/10.1016/j.ijbiomac.2018.06.067

Zmejkoski D, Spasojević D, Orlovska IV, Kozyrovska NO, Soković M, Glamočlija J, Dmitrović S, Matović B, Tasić NB, Maksimović VM, Sosnin M, Radotić K. Bacterial cellulose-lignin composite hydrogel as a promising agent in chronic wound healing. in International Journal of Biological Macromolecules. 2018;118:494-503.
doi:10.1016/j.ijbiomac.2018.06.067 .

Zmejkoski, Danica, Spasojević, Dragica, Orlovska, Irina V., Kozyrovska, Natalia O., Soković, Marina, Glamočlija, Jasmina, Dmitrović, Svetlana, Matović, Branko, Tasić, Nikola B., Maksimović, Vuk M., Sosnin, Mikhail, Radotić, Ksenija, "Bacterial cellulose-lignin composite hydrogel as a promising agent in chronic wound healing" in International Journal of Biological Macromolecules, 118 (2018):494-503,
https://doi.org/10.1016/j.ijbiomac.2018.06.067 . .

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Prekajski-Đorđević, Marija D.
AU  - Jokić, Bojan M.
AU  - Branković, Goran O.
AU  - Zarubica, Aleksandra R.
AU  - Žikić, Vladimir
AU  - Matović, Branko
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7616
AB  - Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)2, brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxidefibers were synthesized by hydration of MgO fibers at 50 °C, 70°C and 90 °C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)2 fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)2 fibers was noticed to be covered with brucite in a form of plates. X-ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)2 fibers were two- or single-phased brucite depending on incubation period, and/or incubation temperature.
AB  - Vlakna paukove mreže sakupljena od Pholcus phalangioides pauka korišćena su kao matrica za dobijanje vlakana magnezijum oksida (MgO, periklas) i magnezijum-hidroksida (Mg(OH)2, brucit). Vlakna magnezijum oksida jednostavno su dobijena termičkim razlaganjem soli magnezijuma (MgCl2) u prisustvu vlakana paukove mreže, dok su vlakna magnezijum hidroksida sintetisana hidratacijom MgO vlakana na temperaturama: 50, 70 i 90 °C u trajanju od 48 i 96 h. Na osnovu
rezultata skenirajuće elektronske mikroskopije (SEM), veličina sintetisanih MgO vlakana bila je određena dimenzijama vlakana pauka, dok je za Mg(OH)2 vlakna prosečan dijametar rastao sa produženjem perioda hidratacije. Na površini Mg(OH)2 vlakana uočeni su tabličasti kristali brucita. Difrakcija X zraka (XRD) pokazala je da su vlakna periklasa jednofazna (dobijen je čist magnezijum-oksid), dok su brucitna vlakna bila dvofazna ili jednofazna, u zavisnosti od inkubacionog perioda i/ili teperature na kojoj je vršena inkubacija.
T2  - Hemijska industrija
T1  - Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers
T1  - Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice
VL  - 72
IS  - 1
SP  - 23
EP  - 28
DO  - 10.2298/HEMIND170404018D
ER  - 

@article{
author = "Dmitrović, Svetlana and Prekajski-Đorđević, Marija D. and Jokić, Bojan M. and Branković, Goran O. and Zarubica, Aleksandra R. and Žikić, Vladimir and Matović, Branko",
year = "2018",
abstract = "Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)2, brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxidefibers were synthesized by hydration of MgO fibers at 50 °C, 70°C and 90 °C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)2 fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)2 fibers was noticed to be covered with brucite in a form of plates. X-ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)2 fibers were two- or single-phased brucite depending on incubation period, and/or incubation temperature., Vlakna paukove mreže sakupljena od Pholcus phalangioides pauka korišćena su kao matrica za dobijanje vlakana magnezijum oksida (MgO, periklas) i magnezijum-hidroksida (Mg(OH)2, brucit). Vlakna magnezijum oksida jednostavno su dobijena termičkim razlaganjem soli magnezijuma (MgCl2) u prisustvu vlakana paukove mreže, dok su vlakna magnezijum hidroksida sintetisana hidratacijom MgO vlakana na temperaturama: 50, 70 i 90 °C u trajanju od 48 i 96 h. Na osnovu
rezultata skenirajuće elektronske mikroskopije (SEM), veličina sintetisanih MgO vlakana bila je određena dimenzijama vlakana pauka, dok je za Mg(OH)2 vlakna prosečan dijametar rastao sa produženjem perioda hidratacije. Na površini Mg(OH)2 vlakana uočeni su tabličasti kristali brucita. Difrakcija X zraka (XRD) pokazala je da su vlakna periklasa jednofazna (dobijen je čist magnezijum-oksid), dok su brucitna vlakna bila dvofazna ili jednofazna, u zavisnosti od inkubacionog perioda i/ili teperature na kojoj je vršena inkubacija.",
journal = "Hemijska industrija",
title = "Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers, Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice",
volume = "72",
number = "1",
pages = "23-28",
doi = "10.2298/HEMIND170404018D"
}

Dmitrović, S., Prekajski-Đorđević, M. D., Jokić, B. M., Branković, G. O., Zarubica, A. R., Žikić, V.,& Matović, B.. (2018). Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers. in Hemijska industrija, 72(1), 23-28.
https://doi.org/10.2298/HEMIND170404018D

Dmitrović S, Prekajski-Đorđević MD, Jokić BM, Branković GO, Zarubica AR, Žikić V, Matović B. Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers. in Hemijska industrija. 2018;72(1):23-28.
doi:10.2298/HEMIND170404018D .

Dmitrović, Svetlana, Prekajski-Đorđević, Marija D., Jokić, Bojan M., Branković, Goran O., Zarubica, Aleksandra R., Žikić, Vladimir, Matović, Branko, "Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers" in Hemijska industrija, 72, no. 1 (2018):23-28,
https://doi.org/10.2298/HEMIND170404018D . .

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Nikolić, Marko G.
AU  - Jelenković, Branislav
AU  - Prekajski, Marija D.
AU  - Rabasović, Mihailo D.
AU  - Zarubica, Aleksandra R.
AU  - Branković, Goran O.
AU  - Matović, Branko
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1768
AB  - Spider dragline silk was coated with pure as well as Eu-doped ceria nanopowders at the room temperature. The treatment was done by immersion of the spider silkmesh into aqueous solutions of cerium nitrate (Ce(NO3)(3)) and ammonium hydroxide (NH4OH). Depending on the relationship between Ce3+ ion and ammonium hydroxide concentration, coated fibers exhibited a different thickness. Obtained materials were studied by means of FESEM. It was found that ceria nanoparticles of average size of 3 nm were coated along spider thread. X-ray diffraction (XRD) and selected-area electron diffraction (SAED) confirmed crystal nature of nanoparticle coating of spider silk. By using Williamson-Hall plots, crystallite size and strain were estimated. EDS measurement confirmed the presence of Eu in spider-Eu-doped ceria composite, and according to FTIR analysis, the interaction between CeO2 and spider silk was proposed. The morphology of obtained composite was observed by TEM. The photoluminescence emission spectra of spider silk coated with Eu-doped ceria were measured with two different excitations of 385 and 466 nm. The two-photon excited auto-fluorescence of spider silk coated with Eu-doped ceria was detected using a nonlinear laser scanning microscope. Obtained composite has a potential as a fluorescent labeling material in diverse applications.
T2  - Journal of Nanoparticle Research
T1  - Photoluminescent properties of spider silk coated with Eu-doped nanoceria
VL  - 19
IS  - 2
DO  - 10.1007/s11051-017-3750-9
ER  - 

@article{
author = "Dmitrović, Svetlana and Nikolić, Marko G. and Jelenković, Branislav and Prekajski, Marija D. and Rabasović, Mihailo D. and Zarubica, Aleksandra R. and Branković, Goran O. and Matović, Branko",
year = "2017",
abstract = "Spider dragline silk was coated with pure as well as Eu-doped ceria nanopowders at the room temperature. The treatment was done by immersion of the spider silkmesh into aqueous solutions of cerium nitrate (Ce(NO3)(3)) and ammonium hydroxide (NH4OH). Depending on the relationship between Ce3+ ion and ammonium hydroxide concentration, coated fibers exhibited a different thickness. Obtained materials were studied by means of FESEM. It was found that ceria nanoparticles of average size of 3 nm were coated along spider thread. X-ray diffraction (XRD) and selected-area electron diffraction (SAED) confirmed crystal nature of nanoparticle coating of spider silk. By using Williamson-Hall plots, crystallite size and strain were estimated. EDS measurement confirmed the presence of Eu in spider-Eu-doped ceria composite, and according to FTIR analysis, the interaction between CeO2 and spider silk was proposed. The morphology of obtained composite was observed by TEM. The photoluminescence emission spectra of spider silk coated with Eu-doped ceria were measured with two different excitations of 385 and 466 nm. The two-photon excited auto-fluorescence of spider silk coated with Eu-doped ceria was detected using a nonlinear laser scanning microscope. Obtained composite has a potential as a fluorescent labeling material in diverse applications.",
journal = "Journal of Nanoparticle Research",
title = "Photoluminescent properties of spider silk coated with Eu-doped nanoceria",
volume = "19",
number = "2",
doi = "10.1007/s11051-017-3750-9"
}

Dmitrović, S., Nikolić, M. G., Jelenković, B., Prekajski, M. D., Rabasović, M. D., Zarubica, A. R., Branković, G. O.,& Matović, B.. (2017). Photoluminescent properties of spider silk coated with Eu-doped nanoceria. in Journal of Nanoparticle Research, 19(2).
https://doi.org/10.1007/s11051-017-3750-9

Dmitrović S, Nikolić MG, Jelenković B, Prekajski MD, Rabasović MD, Zarubica AR, Branković GO, Matović B. Photoluminescent properties of spider silk coated with Eu-doped nanoceria. in Journal of Nanoparticle Research. 2017;19(2).
doi:10.1007/s11051-017-3750-9 .

Dmitrović, Svetlana, Nikolić, Marko G., Jelenković, Branislav, Prekajski, Marija D., Rabasović, Mihailo D., Zarubica, Aleksandra R., Branković, Goran O., Matović, Branko, "Photoluminescent properties of spider silk coated with Eu-doped nanoceria" in Journal of Nanoparticle Research, 19, no. 2 (2017),
https://doi.org/10.1007/s11051-017-3750-9 . .

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Jokić, Bojan M.
AU  - Prekajski, Marija D.
AU  - Pantić, Jelena R.
AU  - Zmejkoski, Danica
AU  - Zarubica, Aleksandra R.
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1172
AB  - Spider silk poses excellent mechanical properties, tenacity and elasticity and it has been used as a template for calcite mineralization to improve load bearing strength of osteoconductive calcite. The samples were obtained by mimicking biomineralization for five days in order to follow formation and growth of calcite on the surface of spider silk. Crystal phase was detected by XRD and FTIR spectroscopy. Microstructure, crystal size and its morphology were studied by means of FESEM. After two days of processing, pure calcite phase was obtained, and a size of the formed crystals increased with prolongation of biomineralization.
T2  - Processing and Application of Ceramics
T1  - Synthesis and characterization of spider silk calcite composite
VL  - 10
IS  - 1
SP  - 37
EP  - 40
DO  - 10.2298/PAC1601037D
ER  - 

@article{
author = "Dmitrović, Svetlana and Jokić, Bojan M. and Prekajski, Marija D. and Pantić, Jelena R. and Zmejkoski, Danica and Zarubica, Aleksandra R. and Matović, Branko",
year = "2016",
abstract = "Spider silk poses excellent mechanical properties, tenacity and elasticity and it has been used as a template for calcite mineralization to improve load bearing strength of osteoconductive calcite. The samples were obtained by mimicking biomineralization for five days in order to follow formation and growth of calcite on the surface of spider silk. Crystal phase was detected by XRD and FTIR spectroscopy. Microstructure, crystal size and its morphology were studied by means of FESEM. After two days of processing, pure calcite phase was obtained, and a size of the formed crystals increased with prolongation of biomineralization.",
journal = "Processing and Application of Ceramics",
title = "Synthesis and characterization of spider silk calcite composite",
volume = "10",
number = "1",
pages = "37-40",
doi = "10.2298/PAC1601037D"
}

Dmitrović, S., Jokić, B. M., Prekajski, M. D., Pantić, J. R., Zmejkoski, D., Zarubica, A. R.,& Matović, B.. (2016). Synthesis and characterization of spider silk calcite composite. in Processing and Application of Ceramics, 10(1), 37-40.
https://doi.org/10.2298/PAC1601037D

Dmitrović S, Jokić BM, Prekajski MD, Pantić JR, Zmejkoski D, Zarubica AR, Matović B. Synthesis and characterization of spider silk calcite composite. in Processing and Application of Ceramics. 2016;10(1):37-40.
doi:10.2298/PAC1601037D .

Dmitrović, Svetlana, Jokić, Bojan M., Prekajski, Marija D., Pantić, Jelena R., Zmejkoski, Danica, Zarubica, Aleksandra R., Matović, Branko, "Synthesis and characterization of spider silk calcite composite" in Processing and Application of Ceramics, 10, no. 1 (2016):37-40,
https://doi.org/10.2298/PAC1601037D . .

TY  - JOUR
AU  - Matović, Branko
AU  - Pantić, Jelena R.
AU  - Luković, Jelena M.
AU  - Čebela, Maria
AU  - Dmitrović, Svetlana
AU  - Mirković, Miljana M.
AU  - Prekajski, Marija D.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/826
AB  - Amorphous hafnia (HfO2) powders were synthesized through a novel reduction oxidation route, in which, metal hafnium was reduced from hafnium tetrachloride (HfCl4) by sodium borohydride (NaBH4), and then oxidized in ambient atmosphere. Upon calcinations, the powder crystallized to nanometric size HfO2 powder with monoclinic structure. Powder properties such as lattice parameters, crystallite and particle size were studied. X-ray diffraction analysis (XRD) was used to characterize structure and phase evolution in synthesized samples. Calculation of the average crystallite size (D) was performed on the basis of the full width at half maximum intensity (FWHM) of the XRD peaks. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. The morphologies of powders calcinated at higher temperatures were followed by Scanning electron microscopy (SEM). (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
T2  - Ceramics International
T1  - A novel reduction-oxidation synthetic route for hafnia
VL  - 42
IS  - 1
SP  - 615
EP  - 620
DO  - 10.1016/j.ceramint.2015.08.155
ER  - 

@article{
author = "Matović, Branko and Pantić, Jelena R. and Luković, Jelena M. and Čebela, Maria and Dmitrović, Svetlana and Mirković, Miljana M. and Prekajski, Marija D.",
year = "2016",
abstract = "Amorphous hafnia (HfO2) powders were synthesized through a novel reduction oxidation route, in which, metal hafnium was reduced from hafnium tetrachloride (HfCl4) by sodium borohydride (NaBH4), and then oxidized in ambient atmosphere. Upon calcinations, the powder crystallized to nanometric size HfO2 powder with monoclinic structure. Powder properties such as lattice parameters, crystallite and particle size were studied. X-ray diffraction analysis (XRD) was used to characterize structure and phase evolution in synthesized samples. Calculation of the average crystallite size (D) was performed on the basis of the full width at half maximum intensity (FWHM) of the XRD peaks. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. The morphologies of powders calcinated at higher temperatures were followed by Scanning electron microscopy (SEM). (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "A novel reduction-oxidation synthetic route for hafnia",
volume = "42",
number = "1",
pages = "615-620",
doi = "10.1016/j.ceramint.2015.08.155"
}

Matović, B., Pantić, J. R., Luković, J. M., Čebela, M., Dmitrović, S., Mirković, M. M.,& Prekajski, M. D.. (2016). A novel reduction-oxidation synthetic route for hafnia. in Ceramics International
Elsevier., 42(1), 615-620.
https://doi.org/10.1016/j.ceramint.2015.08.155

Matović B, Pantić JR, Luković JM, Čebela M, Dmitrović S, Mirković MM, Prekajski MD. A novel reduction-oxidation synthetic route for hafnia. in Ceramics International. 2016;42(1):615-620.
doi:10.1016/j.ceramint.2015.08.155 .

Matović, Branko, Pantić, Jelena R., Luković, Jelena M., Čebela, Maria, Dmitrović, Svetlana, Mirković, Miljana M., Prekajski, Marija D., "A novel reduction-oxidation synthetic route for hafnia" in Ceramics International, 42, no. 1 (2016):615-620,
https://doi.org/10.1016/j.ceramint.2015.08.155 . .