TY  - CONF
AU  - Jovanović, Marija
AU  - Petrović, Miloš
AU  - Stojanović, Dušica
AU  - Radulović, Nataša
AU  - Pantelić, Danijel
AU  - Radojević, Vesna
AU  - Uskoković, Petar
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7441
AB  - The objective of this study was to processand evaluatea suitablescaffold matrix system for drug delivery and tissue regeneration. Abioinspired approachwas applied.Thescaffold based onnatural polymer gelatin,blended  with polyvinylpyrrolidone,and crosslinked  by  genipin,was  3D  printed  by semi-solid  extrusion(SSE).This  3D printing techniquedoes not require high temperature or UV curing, so it allows the use  ofthermo-and UV-sensitive drugs, cells, or other biological components.The influence of genipin, a natural crosslinking agent, and itscontent on the mechanical properties and the cytotoxicity of obtained scaffolds were investigated.
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija
T1  - Evaluation of crosslinked gelatin-polyvinylpyrrolidone scaffold for application in drug delivery and tissue engineering
IS  - 1S
SP  - 25
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7441
ER  - 

@conference{
author = "Jovanović, Marija and Petrović, Miloš and Stojanović, Dušica and Radulović, Nataša and Pantelić, Danijel and Radojević, Vesna and Uskoković, Petar",
year = "2024",
abstract = "The objective of this study was to processand evaluatea suitablescaffold matrix system for drug delivery and tissue regeneration. Abioinspired approachwas applied.Thescaffold based onnatural polymer gelatin,blended  with polyvinylpyrrolidone,and crosslinked  by  genipin,was  3D  printed  by semi-solid  extrusion(SSE).This  3D printing techniquedoes not require high temperature or UV curing, so it allows the use  ofthermo-and UV-sensitive drugs, cells, or other biological components.The influence of genipin, a natural crosslinking agent, and itscontent on the mechanical properties and the cytotoxicity of obtained scaffolds were investigated.",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija",
title = "Evaluation of crosslinked gelatin-polyvinylpyrrolidone scaffold for application in drug delivery and tissue engineering",
number = "1S",
pages = "25",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7441"
}

Jovanović, M., Petrović, M., Stojanović, D., Radulović, N., Pantelić, D., Radojević, V.,& Uskoković, P.. (2024). Evaluation of crosslinked gelatin-polyvinylpyrrolidone scaffold for application in drug delivery and tissue engineering. in Hemijska industrija
Savez hemijskih inženjera Srbije., 78(1S), 25.
https://hdl.handle.net/21.15107/rcub_technorep_7441

Jovanović M, Petrović M, Stojanović D, Radulović N, Pantelić D, Radojević V, Uskoković P. Evaluation of crosslinked gelatin-polyvinylpyrrolidone scaffold for application in drug delivery and tissue engineering. in Hemijska industrija. 2024;78(1S):25.
https://hdl.handle.net/21.15107/rcub_technorep_7441 .

Jovanović, Marija, Petrović, Miloš, Stojanović, Dušica, Radulović, Nataša, Pantelić, Danijel, Radojević, Vesna, Uskoković, Petar, "Evaluation of crosslinked gelatin-polyvinylpyrrolidone scaffold for application in drug delivery and tissue engineering" in Hemijska industrija, 78, no. 1S (2024):25,
https://hdl.handle.net/21.15107/rcub_technorep_7441 .

TY  - JOUR
AU  - Elhmali, Houda Taher
AU  - Stajčić, Ivana
AU  - Stajčić, Aleksandar
AU  - Pešić, Ivan
AU  - Jovanović, Marija
AU  - Petrović, Miloš
AU  - Radojević, Vesna
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7157
AB  - While dental poly methyl methacrylate(PMMA) possesses distinctive qualities such as ease of fabrication, cost-effectiveness, and favorable physical and mechanical properties, these attributes alone are inadequate to impart the necessary impact strength and hardness. Consequently, pure PMMA is less suitable for dental applications. This research focused on the incorporation of Strontium titanate (SrTiO3-STO) and hybrid filler STO/Manganese oxide (MnO2) to improve impact resistance and hardness. The potential of STO in reinforcing PMMA is poorly investigated, while hybrid filler STO/MnO2 has not been presented yet. Differential scanning calorimetry is conducted in order to investigate the agglomeration influence on the PMMA glass transition temperature (Tg), as well as the leaching of residual monomer and volatile additives that could pose a threat to human health. It has been determined that agglomeration with 1 wt% loading had no influence on Tg, while the first scan revealed differences in evaporation of small molecules, in favor of composite PMMA-STO/MnO2, which showed the trapping potential of volatiles. Investigations of mechanical properties have revealed the significant influence of hybrid STO/MnO2 filler on microhardness and total absorbed impact energy, which were increased by 89.9% and 145.4%, respectively. Results presented in this study revealed the reinforcing potential of hybrid nanoparticles that could find application in other polymers as well.
PB  - MDPI
T2  - Polymers
T1  - Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior
IS  - 2
SP  - 278
VL  - 16
DO  - 10.3390/polym16020278
ER  - 

@article{
author = "Elhmali, Houda Taher and Stajčić, Ivana and Stajčić, Aleksandar and Pešić, Ivan and Jovanović, Marija and Petrović, Miloš and Radojević, Vesna",
year = "2024",
abstract = "While dental poly methyl methacrylate(PMMA) possesses distinctive qualities such as ease of fabrication, cost-effectiveness, and favorable physical and mechanical properties, these attributes alone are inadequate to impart the necessary impact strength and hardness. Consequently, pure PMMA is less suitable for dental applications. This research focused on the incorporation of Strontium titanate (SrTiO3-STO) and hybrid filler STO/Manganese oxide (MnO2) to improve impact resistance and hardness. The potential of STO in reinforcing PMMA is poorly investigated, while hybrid filler STO/MnO2 has not been presented yet. Differential scanning calorimetry is conducted in order to investigate the agglomeration influence on the PMMA glass transition temperature (Tg), as well as the leaching of residual monomer and volatile additives that could pose a threat to human health. It has been determined that agglomeration with 1 wt% loading had no influence on Tg, while the first scan revealed differences in evaporation of small molecules, in favor of composite PMMA-STO/MnO2, which showed the trapping potential of volatiles. Investigations of mechanical properties have revealed the significant influence of hybrid STO/MnO2 filler on microhardness and total absorbed impact energy, which were increased by 89.9% and 145.4%, respectively. Results presented in this study revealed the reinforcing potential of hybrid nanoparticles that could find application in other polymers as well.",
publisher = "MDPI",
journal = "Polymers",
title = "Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior",
number = "2",
pages = "278",
volume = "16",
doi = "10.3390/polym16020278"
}

Elhmali, H. T., Stajčić, I., Stajčić, A., Pešić, I., Jovanović, M., Petrović, M.,& Radojević, V.. (2024). Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior. in Polymers
MDPI., 16(2), 278.
https://doi.org/10.3390/polym16020278

Elhmali HT, Stajčić I, Stajčić A, Pešić I, Jovanović M, Petrović M, Radojević V. Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior. in Polymers. 2024;16(2):278.
doi:10.3390/polym16020278 .

Elhmali, Houda Taher, Stajčić, Ivana, Stajčić, Aleksandar, Pešić, Ivan, Jovanović, Marija, Petrović, Miloš, Radojević, Vesna, "Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior" in Polymers, 16, no. 2 (2024):278,
https://doi.org/10.3390/polym16020278 . .

TY  - JOUR
AU  - Stojanović, Dušica
AU  - Ivanovska, Aleksandra
AU  - Barać, Nemanja
AU  - Dimić-Mišić, Katarina
AU  - Kostić, Mirjana
AU  - Radojević, Vesna
AU  - Janaćković, Đorđe
AU  - Uskoković, Petar
AU  - Barceló, Ernest
AU  - Gane, Patrick
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6571
AB  - Ionic liquid 1-butyl-3-methylimidazolium chloride [BMIM][Cl] was used to prepare cellulose (CELL), cellulose/polycaprolactone (CELL/PCL), cellulose/polycaprolactone/keratin (CELL/PCL/KER), and cellulose/polycaprolactone/keratin/ground calcium carbonate (CELL/PCL/KER/GCC) biodegradable mulch films. Attenuated Total Reflectance Fourier-Transform Infrared (ATR-FTIR) spectroscopy, optical microscopy, and Field-Emission Scanning Electron Microscopy (FE-SEM) were used to verify the films’ surface chemistry and morphology. Mulch film made of only cellulose regenerated from ionic liquid solution exhibited the highest tensile strength (75.3 ± 2.1 MPa) and modulus of elasticity of 944.4 ± 2.0 MPa. Among samples containing PCL, CELL/PCL/KER/GCC is characterized by the highest tensile strength (15.8 ± 0.4 MPa) and modulus of elasticity (687.5 ± 16.6 MPa). The film’s breaking strain decreased for all samples containing PCL upon the addition of KER and KER/GCC. The melting temperature of pure PCL is 62.3 °C, whereas that of CELL/PCL film has a slight tendency for melting point depression (61.0 °C), which is a characteristic of partially miscible polymer blends. Furthermore, Differential Scanning Calorimetry (DSC) analysis revealed that the addition of KER or KER/GCC to CELL/PCL films resulted in an increment in melting temperature from 61.0 to 62.6 and 68.9 °C and an improvement in sample crystallinity by 2.2 and 3.0 times, respectively. The light transmittance of all studied samples was greater than 60%. The reported method for mulch film preparation is green and recyclable ([BMIM][Cl] can be recovered), and the inclusion of KER derived by extraction from waste chicken feathers enables conversion to organic biofertilizer. The findings of this study contribute to sustainable agriculture by providing nutrients that enhance the growth rate of plants, and hence food production, while reducing environmental pressure. The addition of GCC furthermore provides a source of Ca2+ for plant micronutrition and a supplementary control of soil pH.
PB  - MDPI
T2  - Polymers
T1  - Biodegradable Cellulose/Polycaprolactone/Keratin/Calcium Carbonate Mulch Films Prepared in Imidazolium-Based Ionic Liquid
IS  - 12
SP  - 2729
VL  - 15
DO  - 10.3390/polym15122729
ER  - 

@article{
author = "Stojanović, Dušica and Ivanovska, Aleksandra and Barać, Nemanja and Dimić-Mišić, Katarina and Kostić, Mirjana and Radojević, Vesna and Janaćković, Đorđe and Uskoković, Petar and Barceló, Ernest and Gane, Patrick",
year = "2023",
abstract = "Ionic liquid 1-butyl-3-methylimidazolium chloride [BMIM][Cl] was used to prepare cellulose (CELL), cellulose/polycaprolactone (CELL/PCL), cellulose/polycaprolactone/keratin (CELL/PCL/KER), and cellulose/polycaprolactone/keratin/ground calcium carbonate (CELL/PCL/KER/GCC) biodegradable mulch films. Attenuated Total Reflectance Fourier-Transform Infrared (ATR-FTIR) spectroscopy, optical microscopy, and Field-Emission Scanning Electron Microscopy (FE-SEM) were used to verify the films’ surface chemistry and morphology. Mulch film made of only cellulose regenerated from ionic liquid solution exhibited the highest tensile strength (75.3 ± 2.1 MPa) and modulus of elasticity of 944.4 ± 2.0 MPa. Among samples containing PCL, CELL/PCL/KER/GCC is characterized by the highest tensile strength (15.8 ± 0.4 MPa) and modulus of elasticity (687.5 ± 16.6 MPa). The film’s breaking strain decreased for all samples containing PCL upon the addition of KER and KER/GCC. The melting temperature of pure PCL is 62.3 °C, whereas that of CELL/PCL film has a slight tendency for melting point depression (61.0 °C), which is a characteristic of partially miscible polymer blends. Furthermore, Differential Scanning Calorimetry (DSC) analysis revealed that the addition of KER or KER/GCC to CELL/PCL films resulted in an increment in melting temperature from 61.0 to 62.6 and 68.9 °C and an improvement in sample crystallinity by 2.2 and 3.0 times, respectively. The light transmittance of all studied samples was greater than 60%. The reported method for mulch film preparation is green and recyclable ([BMIM][Cl] can be recovered), and the inclusion of KER derived by extraction from waste chicken feathers enables conversion to organic biofertilizer. The findings of this study contribute to sustainable agriculture by providing nutrients that enhance the growth rate of plants, and hence food production, while reducing environmental pressure. The addition of GCC furthermore provides a source of Ca2+ for plant micronutrition and a supplementary control of soil pH.",
publisher = "MDPI",
journal = "Polymers",
title = "Biodegradable Cellulose/Polycaprolactone/Keratin/Calcium Carbonate Mulch Films Prepared in Imidazolium-Based Ionic Liquid",
number = "12",
pages = "2729",
volume = "15",
doi = "10.3390/polym15122729"
}

Stojanović, D., Ivanovska, A., Barać, N., Dimić-Mišić, K., Kostić, M., Radojević, V., Janaćković, Đ., Uskoković, P., Barceló, E.,& Gane, P.. (2023). Biodegradable Cellulose/Polycaprolactone/Keratin/Calcium Carbonate Mulch Films Prepared in Imidazolium-Based Ionic Liquid. in Polymers
MDPI., 15(12), 2729.
https://doi.org/10.3390/polym15122729

Stojanović D, Ivanovska A, Barać N, Dimić-Mišić K, Kostić M, Radojević V, Janaćković Đ, Uskoković P, Barceló E, Gane P. Biodegradable Cellulose/Polycaprolactone/Keratin/Calcium Carbonate Mulch Films Prepared in Imidazolium-Based Ionic Liquid. in Polymers. 2023;15(12):2729.
doi:10.3390/polym15122729 .

Stojanović, Dušica, Ivanovska, Aleksandra, Barać, Nemanja, Dimić-Mišić, Katarina, Kostić, Mirjana, Radojević, Vesna, Janaćković, Đorđe, Uskoković, Petar, Barceló, Ernest, Gane, Patrick, "Biodegradable Cellulose/Polycaprolactone/Keratin/Calcium Carbonate Mulch Films Prepared in Imidazolium-Based Ionic Liquid" in Polymers, 15, no. 12 (2023):2729,
https://doi.org/10.3390/polym15122729 . .

TY  - CONF
AU  - Ivanovska, Aleksandra
AU  - Stojanović, Dušica
AU  - Barać, Nemanja
AU  - Dimić-Mišić, Katarina
AU  - Kostić, Mirjana
AU  - Radojević, Vesna
AU  - Uskoković, Petar
AU  - Janaćković, Đorđe
AU  - Barcelo, Ernesto
AU  - Gane, Patrick
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6820
AB  - Biodegradable mulch films from cellulose (CELL), cellulose/polycaprolactone (CELL/PCL),
cellulose/polycaprolactone/keratin (CELL/PCL/KER) and cellulose/polycaprolactone/keratin/ground calcium carbonate (CELL/PCL/KER/GCC) were prepared using Ionic liquid as a green
solvent. Pure cellulose biopolymer is characterised by better mechanical properties (tensile
strength - force per unit cross-sectional area at breakage - of 75.3 MPa and modulus of elasticity
of 944.4 MPa) than the other studied samples which is attributed to the formation of partially
miscible polymer blends. Among samples containing PCL, CELL/PCL/KER/GCC has the highest
tensile strength and modulus of elasticity. The addition of KER or KER/GCC to CELL/PCL films
resulted in an increment in melting temperature and an improvement of sample crystallinity. The
light transmittance of all films was >60 %. The incorporation of KER enhanced the
biodegradability of the biocomposites, while KER/GCC addition slightly inhibited degradation
due to an increased hydrophobicity and crystallisation growth of semi-crystalline biopolymers.
The reported method for mulch film preparation is green and recyclable, and, when including a
readily available source of KER, such as by extraction from waste chicken feathers, enables
conversion to organic biofertiliser. The findings of this study contributed to sustainable agriculture
by providing nutrients that enhance the growth speed of the plant, and hence food production, and
reduce environmental pressure. Inclusion of GCC additionally provides not only Ca2+ for plant
consumption but also soil pH control.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
T1  - Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate
SP  - 135
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6820
ER  - 

@conference{
author = "Ivanovska, Aleksandra and Stojanović, Dušica and Barać, Nemanja and Dimić-Mišić, Katarina and Kostić, Mirjana and Radojević, Vesna and Uskoković, Petar and Janaćković, Đorđe and Barcelo, Ernesto and Gane, Patrick",
year = "2023",
abstract = "Biodegradable mulch films from cellulose (CELL), cellulose/polycaprolactone (CELL/PCL),
cellulose/polycaprolactone/keratin (CELL/PCL/KER) and cellulose/polycaprolactone/keratin/ground calcium carbonate (CELL/PCL/KER/GCC) were prepared using Ionic liquid as a green
solvent. Pure cellulose biopolymer is characterised by better mechanical properties (tensile
strength - force per unit cross-sectional area at breakage - of 75.3 MPa and modulus of elasticity
of 944.4 MPa) than the other studied samples which is attributed to the formation of partially
miscible polymer blends. Among samples containing PCL, CELL/PCL/KER/GCC has the highest
tensile strength and modulus of elasticity. The addition of KER or KER/GCC to CELL/PCL films
resulted in an increment in melting temperature and an improvement of sample crystallinity. The
light transmittance of all films was >60 %. The incorporation of KER enhanced the
biodegradability of the biocomposites, while KER/GCC addition slightly inhibited degradation
due to an increased hydrophobicity and crystallisation growth of semi-crystalline biopolymers.
The reported method for mulch film preparation is green and recyclable, and, when including a
readily available source of KER, such as by extraction from waste chicken feathers, enables
conversion to organic biofertiliser. The findings of this study contributed to sustainable agriculture
by providing nutrients that enhance the growth speed of the plant, and hence food production, and
reduce environmental pressure. Inclusion of GCC additionally provides not only Ca2+ for plant
consumption but also soil pH control.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023",
title = "Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate",
pages = "135",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6820"
}

Ivanovska, A., Stojanović, D., Barać, N., Dimić-Mišić, K., Kostić, M., Radojević, V., Uskoković, P., Janaćković, Đ., Barcelo, E.,& Gane, P.. (2023). Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
Belgrade : Materials Research Society of Serbia., 135.
https://hdl.handle.net/21.15107/rcub_technorep_6820

Ivanovska A, Stojanović D, Barać N, Dimić-Mišić K, Kostić M, Radojević V, Uskoković P, Janaćković Đ, Barcelo E, Gane P. Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023. 2023;:135.
https://hdl.handle.net/21.15107/rcub_technorep_6820 .

Ivanovska, Aleksandra, Stojanović, Dušica, Barać, Nemanja, Dimić-Mišić, Katarina, Kostić, Mirjana, Radojević, Vesna, Uskoković, Petar, Janaćković, Đorđe, Barcelo, Ernesto, Gane, Patrick, "Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate" in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023 (2023):135,
https://hdl.handle.net/21.15107/rcub_technorep_6820 .

TY  - JOUR
AU  - Perišić, Srđan
AU  - Kalevski, Katarina
AU  - Grujić, Aleksandar
AU  - Nedeljković, Dragutin
AU  - Stajić-Trošić, Jasna
AU  - Radojević, Vesna
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7074
AB  - Wood–plastic composites (WPCs) are some of the most common modern composite materials for interior and exterior design that combine natural waste wood properties and the molding possibility of a thermoplastic polymer binder. The addition of reinforcing elements, binding agents, pigments, and coatings, as well as changes to the microstructure and composition, can all affect the quality of WPCs for particular purposes. To improve the properties, hybrid composite panels of WPCs with 30 wt. % and 40 wt. % of wood content and reinforced with one or three metal grid layers were prepared sequentially by extrusion and hot pressure molding. The results show an average 20% higher moisture absorption for composites with higher wood content. A high impact test (HIT) revealed that the absorbed energy of deformation increased with the number of metal grid layers, regardless of the wood content, around two times for all samples before water immersion and around ten times after water absorption. Also, absorbed energy increases with raised wood content, which is most pronounced in three-metal-grid samples, from 21 J to 26 J (before swelling) and from 15 J to 24 J (after swelling). Flexural tests follow the trends observed by HIT, indicating around 65% higher strength for samples with three metal grid layers vs. samples without a metal grid before water immersion and around 80% higher strength for samples with three metal grid layers vs. samples without a grid after water absorption. The synthesis route, double reinforcing (wood and metal), applied methods of characterization, and optimization according to the obtained results provide a WPC with improved mechanical properties ready for an outdoor purpose.
PB  - MDPI
T2  - Polymers
T1  - Effect of Moisture on the Mechanical Properties of Wood–Plastic Composites Hybridized with Metal Grid Layers
IS  - 24
SP  - 4705
VL  - 15
DO  - 10.3390/polym15244705
ER  - 

@article{
author = "Perišić, Srđan and Kalevski, Katarina and Grujić, Aleksandar and Nedeljković, Dragutin and Stajić-Trošić, Jasna and Radojević, Vesna",
year = "2023",
abstract = "Wood–plastic composites (WPCs) are some of the most common modern composite materials for interior and exterior design that combine natural waste wood properties and the molding possibility of a thermoplastic polymer binder. The addition of reinforcing elements, binding agents, pigments, and coatings, as well as changes to the microstructure and composition, can all affect the quality of WPCs for particular purposes. To improve the properties, hybrid composite panels of WPCs with 30 wt. % and 40 wt. % of wood content and reinforced with one or three metal grid layers were prepared sequentially by extrusion and hot pressure molding. The results show an average 20% higher moisture absorption for composites with higher wood content. A high impact test (HIT) revealed that the absorbed energy of deformation increased with the number of metal grid layers, regardless of the wood content, around two times for all samples before water immersion and around ten times after water absorption. Also, absorbed energy increases with raised wood content, which is most pronounced in three-metal-grid samples, from 21 J to 26 J (before swelling) and from 15 J to 24 J (after swelling). Flexural tests follow the trends observed by HIT, indicating around 65% higher strength for samples with three metal grid layers vs. samples without a metal grid before water immersion and around 80% higher strength for samples with three metal grid layers vs. samples without a grid after water absorption. The synthesis route, double reinforcing (wood and metal), applied methods of characterization, and optimization according to the obtained results provide a WPC with improved mechanical properties ready for an outdoor purpose.",
publisher = "MDPI",
journal = "Polymers",
title = "Effect of Moisture on the Mechanical Properties of Wood–Plastic Composites Hybridized with Metal Grid Layers",
number = "24",
pages = "4705",
volume = "15",
doi = "10.3390/polym15244705"
}

Perišić, S., Kalevski, K., Grujić, A., Nedeljković, D., Stajić-Trošić, J.,& Radojević, V.. (2023). Effect of Moisture on the Mechanical Properties of Wood–Plastic Composites Hybridized with Metal Grid Layers. in Polymers
MDPI., 15(24), 4705.
https://doi.org/10.3390/polym15244705

Perišić S, Kalevski K, Grujić A, Nedeljković D, Stajić-Trošić J, Radojević V. Effect of Moisture on the Mechanical Properties of Wood–Plastic Composites Hybridized with Metal Grid Layers. in Polymers. 2023;15(24):4705.
doi:10.3390/polym15244705 .

Perišić, Srđan, Kalevski, Katarina, Grujić, Aleksandar, Nedeljković, Dragutin, Stajić-Trošić, Jasna, Radojević, Vesna, "Effect of Moisture on the Mechanical Properties of Wood–Plastic Composites Hybridized with Metal Grid Layers" in Polymers, 15, no. 24 (2023):4705,
https://doi.org/10.3390/polym15244705 . .

TY  - JOUR
AU  - Radisavljević, Anđela
AU  - Stojanović, Dušica B.
AU  - Petrović, Miloš
AU  - Radojević, Vesna
AU  - Uskoković, Petar
AU  - Rajilić-Stojanović, Mirjana
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5295
AB  - In this study, polycaprolactone (PCL), as a biocompatible polymer was functionalized by addition of medicinal plant extract- Achillea millefolium L. (yarrow). Nanofiber mats were fabricated from PCL solutions containing dry yarrow extract in four concentrations (5%, 10%, 15%, and 20% relative to the weight of the polymer) by using blend electrospinning method. The nanofibers were characterized for their biological, mechanical and drug release behavior. In vitro release of yarrow polyphenols from the electrospun PCL nanofibers over a period of 5 days showed the release of up to 98% of the total loaded polyphenols. The released polyphenols retained its antioxidant activity, which was determined by DPPH assay. Electrospun PCL/yarrow nanofiber mats exhibited the antibacterial effect against Staphylococcus aureus, but had no effect on the growth of Pseudomonas aeruginosa. All PCL/yarrow nanofiber mats had improved mechanical properties compared to the neat PCL nanofibers, as evident by an increase in Young's modulus of elasticity (up to 5.7 times), the tensile strength (up to 5.5 times), and the strain at break (up to 1.45 times). Based on our results, yarrow-loaded PCL nanofiber mats appeared to be multi-functional biomaterials suitable for the production of catheter-coating materials, patches, or gauzes with antibacterial and antioxidant properties.
PB  - John Wiley and Sons Inc.
T2  - Journal of Biomedical Materials Research - Part A
T1  - Electrospun polycaprolactone nanofibers functionalized with Achillea millefolium extract yield biomaterial with antibacterial, antioxidant and improved mechanical properties
EP  - 974
IS  - 7
SP  - 962
VL  - 111
DO  - 10.1002/jbm.a.37481
ER  - 

@article{
author = "Radisavljević, Anđela and Stojanović, Dušica B. and Petrović, Miloš and Radojević, Vesna and Uskoković, Petar and Rajilić-Stojanović, Mirjana",
year = "2023",
abstract = "In this study, polycaprolactone (PCL), as a biocompatible polymer was functionalized by addition of medicinal plant extract- Achillea millefolium L. (yarrow). Nanofiber mats were fabricated from PCL solutions containing dry yarrow extract in four concentrations (5%, 10%, 15%, and 20% relative to the weight of the polymer) by using blend electrospinning method. The nanofibers were characterized for their biological, mechanical and drug release behavior. In vitro release of yarrow polyphenols from the electrospun PCL nanofibers over a period of 5 days showed the release of up to 98% of the total loaded polyphenols. The released polyphenols retained its antioxidant activity, which was determined by DPPH assay. Electrospun PCL/yarrow nanofiber mats exhibited the antibacterial effect against Staphylococcus aureus, but had no effect on the growth of Pseudomonas aeruginosa. All PCL/yarrow nanofiber mats had improved mechanical properties compared to the neat PCL nanofibers, as evident by an increase in Young's modulus of elasticity (up to 5.7 times), the tensile strength (up to 5.5 times), and the strain at break (up to 1.45 times). Based on our results, yarrow-loaded PCL nanofiber mats appeared to be multi-functional biomaterials suitable for the production of catheter-coating materials, patches, or gauzes with antibacterial and antioxidant properties.",
publisher = "John Wiley and Sons Inc.",
journal = "Journal of Biomedical Materials Research - Part A",
title = "Electrospun polycaprolactone nanofibers functionalized with Achillea millefolium extract yield biomaterial with antibacterial, antioxidant and improved mechanical properties",
pages = "974-962",
number = "7",
volume = "111",
doi = "10.1002/jbm.a.37481"
}

Radisavljević, A., Stojanović, D. B., Petrović, M., Radojević, V., Uskoković, P.,& Rajilić-Stojanović, M.. (2023). Electrospun polycaprolactone nanofibers functionalized with Achillea millefolium extract yield biomaterial with antibacterial, antioxidant and improved mechanical properties. in Journal of Biomedical Materials Research - Part A
John Wiley and Sons Inc.., 111(7), 962-974.
https://doi.org/10.1002/jbm.a.37481

Radisavljević A, Stojanović DB, Petrović M, Radojević V, Uskoković P, Rajilić-Stojanović M. Electrospun polycaprolactone nanofibers functionalized with Achillea millefolium extract yield biomaterial with antibacterial, antioxidant and improved mechanical properties. in Journal of Biomedical Materials Research - Part A. 2023;111(7):962-974.
doi:10.1002/jbm.a.37481 .

Radisavljević, Anđela, Stojanović, Dušica B., Petrović, Miloš, Radojević, Vesna, Uskoković, Petar, Rajilić-Stojanović, Mirjana, "Electrospun polycaprolactone nanofibers functionalized with Achillea millefolium extract yield biomaterial with antibacterial, antioxidant and improved mechanical properties" in Journal of Biomedical Materials Research - Part A, 111, no. 7 (2023):962-974,
https://doi.org/10.1002/jbm.a.37481 . .

TY  - JOUR
AU  - Rakić, Jelena M.
AU  - Petrović, Rada D.
AU  - Radojević, Vesna J.
AU  - Baščarević, Zvezdana D.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6458
AB  - Effects of Na2SO4, Na2CO3, and Na2SiO3 on setting time, compressive strength (up to 90 days), and hydration mechanism of binders with high volume (70 wt%, HVFA binders) of fly ash (FA) were investigated. Before chemical activation, FA was mechanically activated. Effects of the activators on hydration process were examined by isothermal calorimetry, X-ray diffraction and thermogravimetric analyses, and scanning electron microscopy. Pore solution analyses were also performed. It was found that, with addition of the chemical activators, Portland cement (PC) hydration was accelerated and the pozzolanic reaction started earlier, which resulted in shortening of setting time and increase in early compressive strength of the HVFA binders. Combination of mechanical activation of FA and the chemical activation by sodium silicate proved to be the best choice for synthesis of HVFA binder with good physicomechanical properties.
PB  - Elsevier Ltd.
T2  - Construction and Building Materials
T1  - Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders
SP  - 131833
VL  - 391
DO  - 10.1016/j.conbuildmat.2023.131833
ER  - 

@article{
author = "Rakić, Jelena M. and Petrović, Rada D. and Radojević, Vesna J. and Baščarević, Zvezdana D.",
year = "2023",
abstract = "Effects of Na2SO4, Na2CO3, and Na2SiO3 on setting time, compressive strength (up to 90 days), and hydration mechanism of binders with high volume (70 wt%, HVFA binders) of fly ash (FA) were investigated. Before chemical activation, FA was mechanically activated. Effects of the activators on hydration process were examined by isothermal calorimetry, X-ray diffraction and thermogravimetric analyses, and scanning electron microscopy. Pore solution analyses were also performed. It was found that, with addition of the chemical activators, Portland cement (PC) hydration was accelerated and the pozzolanic reaction started earlier, which resulted in shortening of setting time and increase in early compressive strength of the HVFA binders. Combination of mechanical activation of FA and the chemical activation by sodium silicate proved to be the best choice for synthesis of HVFA binder with good physicomechanical properties.",
publisher = "Elsevier Ltd.",
journal = "Construction and Building Materials",
title = "Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders",
pages = "131833",
volume = "391",
doi = "10.1016/j.conbuildmat.2023.131833"
}

Rakić, J. M., Petrović, R. D., Radojević, V. J.,& Baščarević, Z. D.. (2023). Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders. in Construction and Building Materials
Elsevier Ltd.., 391, 131833.
https://doi.org/10.1016/j.conbuildmat.2023.131833

Rakić JM, Petrović RD, Radojević VJ, Baščarević ZD. Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders. in Construction and Building Materials. 2023;391:131833.
doi:10.1016/j.conbuildmat.2023.131833 .

Rakić, Jelena M., Petrović, Rada D., Radojević, Vesna J., Baščarević, Zvezdana D., "Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders" in Construction and Building Materials, 391 (2023):131833,
https://doi.org/10.1016/j.conbuildmat.2023.131833 . .

TY  - JOUR
AU  - Stajčić, Ivana
AU  - Veljković, Filip
AU  - Petrović, Miloš
AU  - Veličković, Suzana
AU  - Radojević, Vesna
AU  - Vlahović, Branislav
AU  - Stajčić, Aleksandar
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6464
AB  - High performance polymers with bio-based modifiers are promising materials in terms of applications and environmental impact. In this work, raw acacia honey was used as a bio-modifier for epoxy resin, as a rich source of functional groups. The addition of honey resulted in the formation of highly stable structures that were observed in scanning electron microscopy images as separate phases at the fracture surface, which were involved in the toughening of the resin. Structural changes were investigated, revealing the formation of a new aldehyde carbonyl group. Thermal analysis confirmed the formation of products that were stable up to 600 °C, with a glass transition temperature of 228 °C. An energy-controlled impact test was performed to compare the absorbed impact energy of bio-modified epoxy containing different amounts of honey with unmodified epoxy resin. The results showed that bio-modified epoxy resin with 3 wt% of acacia honey could withstand several impacts with full recovery, while unmodified epoxy resin broke at first impact. The absorbed energy at first impact was 2.5 times higher for bio-modified epoxy resin than it was for unmodified epoxy resin. In this manner, by using simple preparation and a raw material that is abundant in nature, a novel epoxy with high thermal and impact resistance was obtained, opening a path for further research in this field.
PB  - MDPI
T2  - Polymers
T1  - Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey
IS  - 10
SP  - 2261
VL  - 15
DO  - 10.3390/polym15102261
ER  - 

@article{
author = "Stajčić, Ivana and Veljković, Filip and Petrović, Miloš and Veličković, Suzana and Radojević, Vesna and Vlahović, Branislav and Stajčić, Aleksandar",
year = "2023",
abstract = "High performance polymers with bio-based modifiers are promising materials in terms of applications and environmental impact. In this work, raw acacia honey was used as a bio-modifier for epoxy resin, as a rich source of functional groups. The addition of honey resulted in the formation of highly stable structures that were observed in scanning electron microscopy images as separate phases at the fracture surface, which were involved in the toughening of the resin. Structural changes were investigated, revealing the formation of a new aldehyde carbonyl group. Thermal analysis confirmed the formation of products that were stable up to 600 °C, with a glass transition temperature of 228 °C. An energy-controlled impact test was performed to compare the absorbed impact energy of bio-modified epoxy containing different amounts of honey with unmodified epoxy resin. The results showed that bio-modified epoxy resin with 3 wt% of acacia honey could withstand several impacts with full recovery, while unmodified epoxy resin broke at first impact. The absorbed energy at first impact was 2.5 times higher for bio-modified epoxy resin than it was for unmodified epoxy resin. In this manner, by using simple preparation and a raw material that is abundant in nature, a novel epoxy with high thermal and impact resistance was obtained, opening a path for further research in this field.",
publisher = "MDPI",
journal = "Polymers",
title = "Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey",
number = "10",
pages = "2261",
volume = "15",
doi = "10.3390/polym15102261"
}

Stajčić, I., Veljković, F., Petrović, M., Veličković, S., Radojević, V., Vlahović, B.,& Stajčić, A.. (2023). Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey. in Polymers
MDPI., 15(10), 2261.
https://doi.org/10.3390/polym15102261

Stajčić I, Veljković F, Petrović M, Veličković S, Radojević V, Vlahović B, Stajčić A. Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey. in Polymers. 2023;15(10):2261.
doi:10.3390/polym15102261 .

Stajčić, Ivana, Veljković, Filip, Petrović, Miloš, Veličković, Suzana, Radojević, Vesna, Vlahović, Branislav, Stajčić, Aleksandar, "Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey" in Polymers, 15, no. 10 (2023):2261,
https://doi.org/10.3390/polym15102261 . .

TY  - JOUR
AU  - Mladenović, Ivana O.
AU  - Vuksanović, Marija M.
AU  - Dimitrijević, Stevan P.
AU  - Vasilić, Rastko
AU  - Radojević, Vesna J.
AU  - Vasiljević-Radović, Dana G.
AU  - Nikolić, Nebojša D.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7072
AB  - Copper from sulfate baths without and with added inorganic pigment particles based on strontium aluminate doped with europium and dysprosium (SrAl2O4: Eu2+, Dy3+) was electrodeposited on a brass cathode by a galvanostatic regime. Morphological, structural, and roughness analysis of the pigment particles, the pure (pigment-free) Cu coating, and the Cu coatings with incorporated pigment particles were performed using SEM, XRD, and AFM techniques, respectively. Hardness and creep resistance were considered for the examination of the mechanical properties of the Cu coatings, applying Chicot–Lesage (for hardness) and Sargent–Ashby (for creep resistance) mathematical models. The wettability of the Cu coatings was examined by the static sessile drop method by a measurement of the water contact angle. The incorporation of pigment particles in the Cu deposits did not significantly affect the morphology or texture of the coatings, while the roughness of the deposits rose with the rise in pigment particle concentrations. The hardness of the Cu coatings also increased with the increasing concentration of pigments and was greater than that obtained for the pigment-free Cu coating. The presence of the pigments caused a change in the wettability of the Cu coatings from hydrophilic (for the pigment-free Cu coating) to hydrophobic (for Cu coatings with incorporated particles) surface areas.
PB  - MDPI
T2  - Metals
T1  - Mechanical Properties of Electrolytically Produced Copper Coatings Reinforced with Pigment Particles
IS  - 12
SP  - 1979
VL  - 13
DO  - 10.3390/met13121979
ER  - 

@article{
author = "Mladenović, Ivana O. and Vuksanović, Marija M. and Dimitrijević, Stevan P. and Vasilić, Rastko and Radojević, Vesna J. and Vasiljević-Radović, Dana G. and Nikolić, Nebojša D.",
year = "2023",
abstract = "Copper from sulfate baths without and with added inorganic pigment particles based on strontium aluminate doped with europium and dysprosium (SrAl2O4: Eu2+, Dy3+) was electrodeposited on a brass cathode by a galvanostatic regime. Morphological, structural, and roughness analysis of the pigment particles, the pure (pigment-free) Cu coating, and the Cu coatings with incorporated pigment particles were performed using SEM, XRD, and AFM techniques, respectively. Hardness and creep resistance were considered for the examination of the mechanical properties of the Cu coatings, applying Chicot–Lesage (for hardness) and Sargent–Ashby (for creep resistance) mathematical models. The wettability of the Cu coatings was examined by the static sessile drop method by a measurement of the water contact angle. The incorporation of pigment particles in the Cu deposits did not significantly affect the morphology or texture of the coatings, while the roughness of the deposits rose with the rise in pigment particle concentrations. The hardness of the Cu coatings also increased with the increasing concentration of pigments and was greater than that obtained for the pigment-free Cu coating. The presence of the pigments caused a change in the wettability of the Cu coatings from hydrophilic (for the pigment-free Cu coating) to hydrophobic (for Cu coatings with incorporated particles) surface areas.",
publisher = "MDPI",
journal = "Metals",
title = "Mechanical Properties of Electrolytically Produced Copper Coatings Reinforced with Pigment Particles",
number = "12",
pages = "1979",
volume = "13",
doi = "10.3390/met13121979"
}

Mladenović, I. O., Vuksanović, M. M., Dimitrijević, S. P., Vasilić, R., Radojević, V. J., Vasiljević-Radović, D. G.,& Nikolić, N. D.. (2023). Mechanical Properties of Electrolytically Produced Copper Coatings Reinforced with Pigment Particles. in Metals
MDPI., 13(12), 1979.
https://doi.org/10.3390/met13121979

Mladenović IO, Vuksanović MM, Dimitrijević SP, Vasilić R, Radojević VJ, Vasiljević-Radović DG, Nikolić ND. Mechanical Properties of Electrolytically Produced Copper Coatings Reinforced with Pigment Particles. in Metals. 2023;13(12):1979.
doi:10.3390/met13121979 .

Mladenović, Ivana O., Vuksanović, Marija M., Dimitrijević, Stevan P., Vasilić, Rastko, Radojević, Vesna J., Vasiljević-Radović, Dana G., Nikolić, Nebojša D., "Mechanical Properties of Electrolytically Produced Copper Coatings Reinforced with Pigment Particles" in Metals, 13, no. 12 (2023):1979,
https://doi.org/10.3390/met13121979 . .

TY  - CONF
AU  - Ivanovska, Aleksandra
AU  - Barać, Nemanja
AU  - Radojević, Vesna
AU  - Uskoković, Petar
AU  - Janaćković, Đorđe
AU  - Barcelo, Ernest
AU  - Gane, Patrick
AU  - Kostić, Mirjana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6821
AB  - Cellulose and cellulose-CaCO3 dopes were prepared by ultrasound dispersion of CaCO3 (0, 0.26,
or 0.65 w/w%) and dissolution of cellulose (13 w/w%) in ionic liquid 1-ethyl-3-
methylimidazolium acetate at 90 °C. Thereafter, the films were obtained by rode casting over a
pre-heated glass plate, together with methanol used as a regeneration agent. Subsequently, the
films were washed in hot water (80 °C) to remove the residual ionic liquid solvent - a process that
can be extended to recover ionic liquid for re-use. To impart antimicrobial properties to the
cellulose-CaCO3 composite films, selected samples of the wet films were treated with 10 mM
CuSO4 solution for different times (30, 60, and 120 min). Furthermore, half of these CuSO4 treated
films were subsequently treated with ascorbic acid to synthesise in situ Cu-based nanoparticles on
the film surface. After drying whilst held under tension at room temperature, the films were
characterised in respect to their mechanical properties as well as antimicrobial activity. The results
revealed that, in the case of films treated for 30 min with CuSO4 solution, the incorporation of
0.26 w/w% CaCO3 correlated with an increase in the film hardness, while in the case where the
treatment with CuSO4 solution was performed for longer (60 min) this hardness trend was
reversed. The elastic modulus decreased with increasing content of CaCO3. Only the films treated
with CuSO4, and those with Cu-based nanoparticles, possessed excellent antimicrobial activity
against the bacteria E. coli, S. aureus, and the fungus C. albicans. However, the results in the case
of C. albicans, showed an additional dependence, in that films treated with CuSO4 solution for 60
min demonstrated increasing antimicrobial activity against the fungus specifically with increasing
CaCO3 content.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
T1  - Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite
SP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6821
ER  - 

@conference{
author = "Ivanovska, Aleksandra and Barać, Nemanja and Radojević, Vesna and Uskoković, Petar and Janaćković, Đorđe and Barcelo, Ernest and Gane, Patrick and Kostić, Mirjana",
year = "2022",
abstract = "Cellulose and cellulose-CaCO3 dopes were prepared by ultrasound dispersion of CaCO3 (0, 0.26,
or 0.65 w/w%) and dissolution of cellulose (13 w/w%) in ionic liquid 1-ethyl-3-
methylimidazolium acetate at 90 °C. Thereafter, the films were obtained by rode casting over a
pre-heated glass plate, together with methanol used as a regeneration agent. Subsequently, the
films were washed in hot water (80 °C) to remove the residual ionic liquid solvent - a process that
can be extended to recover ionic liquid for re-use. To impart antimicrobial properties to the
cellulose-CaCO3 composite films, selected samples of the wet films were treated with 10 mM
CuSO4 solution for different times (30, 60, and 120 min). Furthermore, half of these CuSO4 treated
films were subsequently treated with ascorbic acid to synthesise in situ Cu-based nanoparticles on
the film surface. After drying whilst held under tension at room temperature, the films were
characterised in respect to their mechanical properties as well as antimicrobial activity. The results
revealed that, in the case of films treated for 30 min with CuSO4 solution, the incorporation of
0.26 w/w% CaCO3 correlated with an increase in the film hardness, while in the case where the
treatment with CuSO4 solution was performed for longer (60 min) this hardness trend was
reversed. The elastic modulus decreased with increasing content of CaCO3. Only the films treated
with CuSO4, and those with Cu-based nanoparticles, possessed excellent antimicrobial activity
against the bacteria E. coli, S. aureus, and the fungus C. albicans. However, the results in the case
of C. albicans, showed an additional dependence, in that films treated with CuSO4 solution for 60
min demonstrated increasing antimicrobial activity against the fungus specifically with increasing
CaCO3 content.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022",
title = "Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite",
pages = "90",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6821"
}

Ivanovska, A., Barać, N., Radojević, V., Uskoković, P., Janaćković, Đ., Barcelo, E., Gane, P.,& Kostić, M.. (2022). Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite. in Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
Belgrade : Materials Research Society of Serbia., 90.
https://hdl.handle.net/21.15107/rcub_technorep_6821

Ivanovska A, Barać N, Radojević V, Uskoković P, Janaćković Đ, Barcelo E, Gane P, Kostić M. Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite. in Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022. 2022;:90.
https://hdl.handle.net/21.15107/rcub_technorep_6821 .

Ivanovska, Aleksandra, Barać, Nemanja, Radojević, Vesna, Uskoković, Petar, Janaćković, Đorđe, Barcelo, Ernest, Gane, Patrick, Kostić, Mirjana, "Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite" in Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022 (2022):90,
https://hdl.handle.net/21.15107/rcub_technorep_6821 .

TY  - JOUR
AU  - Perišić, Srđan
AU  - Kareem Ali Alzaroug, Azdihar
AU  - Kalevski, Katarina
AU  - Vuksanović, Marija M.
AU  - Volkov-Husović, Tatjana
AU  - Radović, Ivana
AU  - Radojević, Vesna
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4972
AB  - Polymer matrix composite materials have found application in dentistry because of good mechanical properties, aesthetic, easy processing, and possibilities of the repair. Acrylates are materials used to make and repair dentures. Reinforcements in the form of short glass or polymer fibers are added to improve the mechanical properties of dental polymers. In this study, the processing of composite material with a polymer matrix from commercial auto-polymerized acrylate Simgal, with reinforcement in the form of short poly(ethylene terephthalate) (PET) fibers was examined. Samples were processed in three series: pure Simgal, Simgal/PET 1 wt% and Simgal/PET 3 wt%. The influence of the reinforcement in the form of short PET fibers on the mechanical properties of composite materials was investigated. Strength and hardness were tested by impact testing and Vickers microhardness, and it was shown that there is an increase in absorbed energy and hardness. The modulus was reduced by the addition of PET fibers and by increasing the amount of fibers in the composite. The increase in the amount of PET fibers also resulted in a smaller loss of surface mass of the samples compared to the pure matrix by 63% and 93%, respectively. Cavitation test revealed better cavitation resistance of composites than the pure acrylate.
PB  - John Wiley and Sons Inc.
T2  - Polymer Composites
T1  - Denture composite reinforced with short polyethylene terephthalate fibers
EP  - 550
IS  - 1
SP  - 543
VL  - 43
DO  - 10.1002/pc.26397
ER  - 

@article{
author = "Perišić, Srđan and Kareem Ali Alzaroug, Azdihar and Kalevski, Katarina and Vuksanović, Marija M. and Volkov-Husović, Tatjana and Radović, Ivana and Radojević, Vesna",
year = "2022",
abstract = "Polymer matrix composite materials have found application in dentistry because of good mechanical properties, aesthetic, easy processing, and possibilities of the repair. Acrylates are materials used to make and repair dentures. Reinforcements in the form of short glass or polymer fibers are added to improve the mechanical properties of dental polymers. In this study, the processing of composite material with a polymer matrix from commercial auto-polymerized acrylate Simgal, with reinforcement in the form of short poly(ethylene terephthalate) (PET) fibers was examined. Samples were processed in three series: pure Simgal, Simgal/PET 1 wt% and Simgal/PET 3 wt%. The influence of the reinforcement in the form of short PET fibers on the mechanical properties of composite materials was investigated. Strength and hardness were tested by impact testing and Vickers microhardness, and it was shown that there is an increase in absorbed energy and hardness. The modulus was reduced by the addition of PET fibers and by increasing the amount of fibers in the composite. The increase in the amount of PET fibers also resulted in a smaller loss of surface mass of the samples compared to the pure matrix by 63% and 93%, respectively. Cavitation test revealed better cavitation resistance of composites than the pure acrylate.",
publisher = "John Wiley and Sons Inc.",
journal = "Polymer Composites",
title = "Denture composite reinforced with short polyethylene terephthalate fibers",
pages = "550-543",
number = "1",
volume = "43",
doi = "10.1002/pc.26397"
}

Perišić, S., Kareem Ali Alzaroug, A., Kalevski, K., Vuksanović, M. M., Volkov-Husović, T., Radović, I.,& Radojević, V.. (2022). Denture composite reinforced with short polyethylene terephthalate fibers. in Polymer Composites
John Wiley and Sons Inc.., 43(1), 543-550.
https://doi.org/10.1002/pc.26397

Perišić S, Kareem Ali Alzaroug A, Kalevski K, Vuksanović MM, Volkov-Husović T, Radović I, Radojević V. Denture composite reinforced with short polyethylene terephthalate fibers. in Polymer Composites. 2022;43(1):543-550.
doi:10.1002/pc.26397 .

Perišić, Srđan, Kareem Ali Alzaroug, Azdihar, Kalevski, Katarina, Vuksanović, Marija M., Volkov-Husović, Tatjana, Radović, Ivana, Radojević, Vesna, "Denture composite reinforced with short polyethylene terephthalate fibers" in Polymer Composites, 43, no. 1 (2022):543-550,
https://doi.org/10.1002/pc.26397 . .

TY  - JOUR
AU  - Mladenovic, Ivana O.
AU  - Boskovic, Marko V.
AU  - Vuksanović, Marija M.
AU  - Nikolić, Nebojša D.
AU  - Lamovec, Jelena S.
AU  - Vasiljevic-Radovic, Dana G.
AU  - Radojević, Vesna
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5026
AB  - Mechanical (hardness and adhesion) and electrical (sheet resistance) characteristics of electrolytically produced copper coatings have been investigated. Morphologies of Cu coatings produced galvanostatically at two current densities from the basic sulfate electrolyte and from an electrolyte containing levelling/brightening additives without and with application of ultrasound for the electrolyte stirring were characterized by SEM and AFM techniques. Mechanical characteristics were examined by Vickers microindentation using the Chen-Gao (C-G) composite hardness model, while electrical characteristics were examined by the four-point probe method. Application of ultrasound achieved benefits on both hardness and adhesion of the Cu coatings, thereby the use of both the larger current density and additive-free electrolyte improved these mechanical characteristics. The hardness of Cu coatings calculated according to the C-G model was in the 1.1844-1.2303 GPa range for fine-grained Cu coatings obtained from the sulfate electrolyte and in the 0.8572-1.1507 GPa range for smooth Cu coatings obtained from the electrolyte with additives. Analysis of the electrical characteristics of Cu coatings after an aging period of 4 years showed differences in the sheet resistance between the top and the bottom sides of the coating, which is attributed to the formation of a thin oxide layer on the coating surface area.
T2  - Electronics
T1  - Structural, Mechanical and Electrical Characteristics of Copper Coatings Obtained by Various Electrodeposition Processes
IS  - 3
VL  - 11
DO  - 10.3390/electronics11030443
ER  - 

@article{
author = "Mladenovic, Ivana O. and Boskovic, Marko V. and Vuksanović, Marija M. and Nikolić, Nebojša D. and Lamovec, Jelena S. and Vasiljevic-Radovic, Dana G. and Radojević, Vesna",
year = "2022",
abstract = "Mechanical (hardness and adhesion) and electrical (sheet resistance) characteristics of electrolytically produced copper coatings have been investigated. Morphologies of Cu coatings produced galvanostatically at two current densities from the basic sulfate electrolyte and from an electrolyte containing levelling/brightening additives without and with application of ultrasound for the electrolyte stirring were characterized by SEM and AFM techniques. Mechanical characteristics were examined by Vickers microindentation using the Chen-Gao (C-G) composite hardness model, while electrical characteristics were examined by the four-point probe method. Application of ultrasound achieved benefits on both hardness and adhesion of the Cu coatings, thereby the use of both the larger current density and additive-free electrolyte improved these mechanical characteristics. The hardness of Cu coatings calculated according to the C-G model was in the 1.1844-1.2303 GPa range for fine-grained Cu coatings obtained from the sulfate electrolyte and in the 0.8572-1.1507 GPa range for smooth Cu coatings obtained from the electrolyte with additives. Analysis of the electrical characteristics of Cu coatings after an aging period of 4 years showed differences in the sheet resistance between the top and the bottom sides of the coating, which is attributed to the formation of a thin oxide layer on the coating surface area.",
journal = "Electronics",
title = "Structural, Mechanical and Electrical Characteristics of Copper Coatings Obtained by Various Electrodeposition Processes",
number = "3",
volume = "11",
doi = "10.3390/electronics11030443"
}

Mladenovic, I. O., Boskovic, M. V., Vuksanović, M. M., Nikolić, N. D., Lamovec, J. S., Vasiljevic-Radovic, D. G.,& Radojević, V.. (2022). Structural, Mechanical and Electrical Characteristics of Copper Coatings Obtained by Various Electrodeposition Processes. in Electronics, 11(3).
https://doi.org/10.3390/electronics11030443

Mladenovic IO, Boskovic MV, Vuksanović MM, Nikolić ND, Lamovec JS, Vasiljevic-Radovic DG, Radojević V. Structural, Mechanical and Electrical Characteristics of Copper Coatings Obtained by Various Electrodeposition Processes. in Electronics. 2022;11(3).
doi:10.3390/electronics11030443 .

Mladenovic, Ivana O., Boskovic, Marko V., Vuksanović, Marija M., Nikolić, Nebojša D., Lamovec, Jelena S., Vasiljevic-Radovic, Dana G., Radojević, Vesna, "Structural, Mechanical and Electrical Characteristics of Copper Coatings Obtained by Various Electrodeposition Processes" in Electronics, 11, no. 3 (2022),
https://doi.org/10.3390/electronics11030443 . .

TY  - JOUR
AU  - Kostić, Mirjana
AU  - Imani, Monireh
AU  - Ivanovska, Aleksandra
AU  - Radojević, Vesna
AU  - Dimić-Mišić, Katarina
AU  - Barać, Nemanja
AU  - Stojanović, Dušica
AU  - Janaćković, Đorđe
AU  - Uskoković, Petar
AU  - Barcelo, Ernest
AU  - Gane, Patrick
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5138
AB  - Cellulose-fibre lifecycle is severely limited within today’s recycling methodology. Feedstock cellulose and filler abound in products considered uneconomic, unsuitable for standard deinking or too weak for original product re-use. Regeneration of cellulose from ionic liquid (IL) solution offers a novel valorisation route with potential to replace oil-based plastics, simultaneously bringing filler-containing cellulose waste into circular economy. To exemplify, composite cellulose-CaCO3 filaments were produced from cellulose pulp and waste office paper (already containing 27 w/w% precipitated CaCO3filler), without any pretreatment, using diazabicyclo[4.3.0]non-5-enium-acetate ([DHBN][OAc]) as IL solvent to form a dope. The dope suspension was extruded via dry-jet wet spinning. Surface morphology and elemental analysis were investigated using scanning electron microscopy with energy dispersive X-ray spectroscopy. X-ray diffraction was used to measure the degree of cellulose crystallinity. Static and dynamic mechanical properties were determined. Thermal stability was evaluated by thermogravimetric analysis. Filaments obtained from waste office paper showed that high filler levels and the presence of print toner enhanced both mechanical and thermal stability, while decreasing, as expected, ultimate breaking strength in comparison to filaments containing virgin cellulose alone. For comparison, 2 w/w% ground CaCO3 introduced into pure cellulose dope led to significant increase in cellulose crystallinity and resulting stiffness, while thermal properties remained unchanged at the low level filler addition. Such addition of CaCO3 during cellulose regeneration, or usage of already filled paper, could be an effective way to obtain high strength cellulose-CaCO3 composite materials, thus valorising in a circular economy renewable cellulosic wastes rejected from the current recycling stream.
PB  - Springer Science and Business Media B.V.
T2  - Cellulose
T1  - Extending waste paper, cellulose and filler use beyond recycling by entering the circular economy creating cellulose-CaCO3 composites reconstituted from ionic liquid
DO  - 10.1007/s10570-022-04575-w
ER  - 

@article{
author = "Kostić, Mirjana and Imani, Monireh and Ivanovska, Aleksandra and Radojević, Vesna and Dimić-Mišić, Katarina and Barać, Nemanja and Stojanović, Dušica and Janaćković, Đorđe and Uskoković, Petar and Barcelo, Ernest and Gane, Patrick",
year = "2022",
abstract = "Cellulose-fibre lifecycle is severely limited within today’s recycling methodology. Feedstock cellulose and filler abound in products considered uneconomic, unsuitable for standard deinking or too weak for original product re-use. Regeneration of cellulose from ionic liquid (IL) solution offers a novel valorisation route with potential to replace oil-based plastics, simultaneously bringing filler-containing cellulose waste into circular economy. To exemplify, composite cellulose-CaCO3 filaments were produced from cellulose pulp and waste office paper (already containing 27 w/w% precipitated CaCO3filler), without any pretreatment, using diazabicyclo[4.3.0]non-5-enium-acetate ([DHBN][OAc]) as IL solvent to form a dope. The dope suspension was extruded via dry-jet wet spinning. Surface morphology and elemental analysis were investigated using scanning electron microscopy with energy dispersive X-ray spectroscopy. X-ray diffraction was used to measure the degree of cellulose crystallinity. Static and dynamic mechanical properties were determined. Thermal stability was evaluated by thermogravimetric analysis. Filaments obtained from waste office paper showed that high filler levels and the presence of print toner enhanced both mechanical and thermal stability, while decreasing, as expected, ultimate breaking strength in comparison to filaments containing virgin cellulose alone. For comparison, 2 w/w% ground CaCO3 introduced into pure cellulose dope led to significant increase in cellulose crystallinity and resulting stiffness, while thermal properties remained unchanged at the low level filler addition. Such addition of CaCO3 during cellulose regeneration, or usage of already filled paper, could be an effective way to obtain high strength cellulose-CaCO3 composite materials, thus valorising in a circular economy renewable cellulosic wastes rejected from the current recycling stream.",
publisher = "Springer Science and Business Media B.V.",
journal = "Cellulose",
title = "Extending waste paper, cellulose and filler use beyond recycling by entering the circular economy creating cellulose-CaCO3 composites reconstituted from ionic liquid",
doi = "10.1007/s10570-022-04575-w"
}

Kostić, M., Imani, M., Ivanovska, A., Radojević, V., Dimić-Mišić, K., Barać, N., Stojanović, D., Janaćković, Đ., Uskoković, P., Barcelo, E.,& Gane, P.. (2022). Extending waste paper, cellulose and filler use beyond recycling by entering the circular economy creating cellulose-CaCO3 composites reconstituted from ionic liquid. in Cellulose
Springer Science and Business Media B.V...
https://doi.org/10.1007/s10570-022-04575-w

Kostić M, Imani M, Ivanovska A, Radojević V, Dimić-Mišić K, Barać N, Stojanović D, Janaćković Đ, Uskoković P, Barcelo E, Gane P. Extending waste paper, cellulose and filler use beyond recycling by entering the circular economy creating cellulose-CaCO3 composites reconstituted from ionic liquid. in Cellulose. 2022;.
doi:10.1007/s10570-022-04575-w .

Kostić, Mirjana, Imani, Monireh, Ivanovska, Aleksandra, Radojević, Vesna, Dimić-Mišić, Katarina, Barać, Nemanja, Stojanović, Dušica, Janaćković, Đorđe, Uskoković, Petar, Barcelo, Ernest, Gane, Patrick, "Extending waste paper, cellulose and filler use beyond recycling by entering the circular economy creating cellulose-CaCO3 composites reconstituted from ionic liquid" in Cellulose (2022),
https://doi.org/10.1007/s10570-022-04575-w . .

TY  - JOUR
AU  - Obradović, Vera
AU  - Vuksanović, Marija M.
AU  - Tomić, Nataša
AU  - Petrović, Miloš
AU  - Marinković, Aleksandar
AU  - Stojanović, Dušica
AU  - Radojević, Vesna
AU  - Jančić-Heinemann, Radmila
AU  - Uskoković, Petar
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5167
AB  - This study presents the impact properties of the new form of hybrid thermoplastic composites. The Kolon fabrics were impregnated with the 10 wt% poly (vinyl butyral) (PVB)/ethanol solution with the addition of silica (SiO2) particles originating from rice husk or layered double hydroxide modified silica particles (FeAl-LDH@SiO2) as reinforcement. All the composites consisted of one layer of the impregnated fabric where the silica particles concentrations were 0.5 wt% and 1.0 wt% regarding PVB. The impact properties of the composite samples were analyzed by the controlled energy puncture impact tester. The structures of the composite samples were determined by the attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) and field emission scanning electron microscopy (FE-SEM). The results showed that the Kolon/PVB/1 wt% FeAl-LDH@SiO2 sample yielded the maximum impact force.
T2  - Materials Letters
T1  - Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles
SP  - 132668
VL  - 324
DO  - 10.1016/j.matlet.2022.132668
ER  - 

@article{
author = "Obradović, Vera and Vuksanović, Marija M. and Tomić, Nataša and Petrović, Miloš and Marinković, Aleksandar and Stojanović, Dušica and Radojević, Vesna and Jančić-Heinemann, Radmila and Uskoković, Petar",
year = "2022",
abstract = "This study presents the impact properties of the new form of hybrid thermoplastic composites. The Kolon fabrics were impregnated with the 10 wt% poly (vinyl butyral) (PVB)/ethanol solution with the addition of silica (SiO2) particles originating from rice husk or layered double hydroxide modified silica particles (FeAl-LDH@SiO2) as reinforcement. All the composites consisted of one layer of the impregnated fabric where the silica particles concentrations were 0.5 wt% and 1.0 wt% regarding PVB. The impact properties of the composite samples were analyzed by the controlled energy puncture impact tester. The structures of the composite samples were determined by the attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) and field emission scanning electron microscopy (FE-SEM). The results showed that the Kolon/PVB/1 wt% FeAl-LDH@SiO2 sample yielded the maximum impact force.",
journal = "Materials Letters",
title = "Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles",
pages = "132668",
volume = "324",
doi = "10.1016/j.matlet.2022.132668"
}

Obradović, V., Vuksanović, M. M., Tomić, N., Petrović, M., Marinković, A., Stojanović, D., Radojević, V., Jančić-Heinemann, R.,& Uskoković, P.. (2022). Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles. in Materials Letters, 324, 132668.
https://doi.org/10.1016/j.matlet.2022.132668

Obradović V, Vuksanović MM, Tomić N, Petrović M, Marinković A, Stojanović D, Radojević V, Jančić-Heinemann R, Uskoković P. Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles. in Materials Letters. 2022;324:132668.
doi:10.1016/j.matlet.2022.132668 .

Obradović, Vera, Vuksanović, Marija M., Tomić, Nataša, Petrović, Miloš, Marinković, Aleksandar, Stojanović, Dušica, Radojević, Vesna, Jančić-Heinemann, Radmila, Uskoković, Petar, "Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles" in Materials Letters, 324 (2022):132668,
https://doi.org/10.1016/j.matlet.2022.132668 . .

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Mladenović, Ivana O.
AU  - Tomić, Nataša Z.
AU  - Petrović, Miloš
AU  - Radojević, Vesna J.
AU  - Marinković, Aleksandar D.
AU  - Jančić-Heinemann, Radmila M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5172
AB  - Rice husk was used to produce silica particles, which were then used to reinforce the polymer matrix. The synthesized SiO2 particles were characterized using X-ray diffraction, Fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy with EDS. In a PMMA matrix, prepared SiO2 particles in amounts of 1, 3, and 5 wt.% were used as reinforcing agents. The goal of this research was to see if SiO2 particles had any effect on the mechanical properties of polymer composite materials. The morphology of the composites was examined using a field emission scanning electron microscope (FE-SEM). Vickers microindentation hardness and impact testing were used to determine the mechanical properties of the obtained composites. The indentation creep’s behavior of a polymethylmetacrylate (PMMA) composite material with varying amounts of nanoparticles (SiO2) was investigated and analyzed.
T2  - Science of Sintering
T1  - Mechanical Properties of Biomass-derived Silica Nanoparticles Reinforced PMMA Composite Material
IS  - 2
VL  - 54
DO  - 10.2298/SOS2202211V
ER  - 

@article{
author = "Vuksanović, Marija M. and Mladenović, Ivana O. and Tomić, Nataša Z. and Petrović, Miloš and Radojević, Vesna J. and Marinković, Aleksandar D. and Jančić-Heinemann, Radmila M.",
year = "2022",
abstract = "Rice husk was used to produce silica particles, which were then used to reinforce the polymer matrix. The synthesized SiO2 particles were characterized using X-ray diffraction, Fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy with EDS. In a PMMA matrix, prepared SiO2 particles in amounts of 1, 3, and 5 wt.% were used as reinforcing agents. The goal of this research was to see if SiO2 particles had any effect on the mechanical properties of polymer composite materials. The morphology of the composites was examined using a field emission scanning electron microscope (FE-SEM). Vickers microindentation hardness and impact testing were used to determine the mechanical properties of the obtained composites. The indentation creep’s behavior of a polymethylmetacrylate (PMMA) composite material with varying amounts of nanoparticles (SiO2) was investigated and analyzed.",
journal = "Science of Sintering",
title = "Mechanical Properties of Biomass-derived Silica Nanoparticles Reinforced PMMA Composite Material",
number = "2",
volume = "54",
doi = "10.2298/SOS2202211V"
}

Vuksanović, M. M., Mladenović, I. O., Tomić, N. Z., Petrović, M., Radojević, V. J., Marinković, A. D.,& Jančić-Heinemann, R. M.. (2022). Mechanical Properties of Biomass-derived Silica Nanoparticles Reinforced PMMA Composite Material. in Science of Sintering, 54(2).
https://doi.org/10.2298/SOS2202211V

Vuksanović MM, Mladenović IO, Tomić NZ, Petrović M, Radojević VJ, Marinković AD, Jančić-Heinemann RM. Mechanical Properties of Biomass-derived Silica Nanoparticles Reinforced PMMA Composite Material. in Science of Sintering. 2022;54(2).
doi:10.2298/SOS2202211V .

Vuksanović, Marija M., Mladenović, Ivana O., Tomić, Nataša Z., Petrović, Miloš, Radojević, Vesna J., Marinković, Aleksandar D., Jančić-Heinemann, Radmila M., "Mechanical Properties of Biomass-derived Silica Nanoparticles Reinforced PMMA Composite Material" in Science of Sintering, 54, no. 2 (2022),
https://doi.org/10.2298/SOS2202211V . .

TY  - JOUR
AU  - Mladenović, Ivana O.
AU  - Lamovec, Jelena S.
AU  - Radović, Dana G. Vasiljević
AU  - Radojević, Vesna J.
AU  - Nikolić, Nebojša D.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5225
AB  - The influence of various intensities of ultrasound applied for the electrolyte stirring on morphological and mechanical characteristics of electrolytically produced copper coatings has been investigated. The copper coatings produced by the galvanostatic regime of the electrodeposition from the basic sulphate electrolyte and the electrolyte with added levelling/brightening additives at the low temperature were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques (surface morphology and topography, respectively) and by Vickers microindentation (hardness). The roughness of coatings increased with the increasing intensity of ultrasound, indicating that morphology of the coatings worsened with the enhanced application of ultrasonic waves. This is attributed to the strong effect of ultrasound on hydrodynamic conditions in the near-electrode layer, which is manifested by the increase of share of the activation control in the mixed activation-diffusion control of electrodeposition with increasing the intensity of ultrasound. The concept of "effective overpotential" originally proposed to explain a change of surface morphology in the conditions of vigorous hydrogen evolution is also applicable for a change of morphology of Cu coatings under the imposed effect of ultrasonic waves. Hardness analysis of the coatings showed that an intensity of applied ultrasound did not have any significant effect on the hardness, especially for the Cu coatings produced from the basic sulphate electrolyte.
PB  - International Association of Physical Chemists
T2  - Journal of Electrochemical Science and Engineering
T1  - Influence of intensity of ultrasound on morphology and hardness of copper coatings obtained by electrodeposition
EP  - 615
IS  - 4
SP  - 603
VL  - 12
DO  - 10.5599/jese.1290
ER  - 

@article{
author = "Mladenović, Ivana O. and Lamovec, Jelena S. and Radović, Dana G. Vasiljević and Radojević, Vesna J. and Nikolić, Nebojša D.",
year = "2022",
abstract = "The influence of various intensities of ultrasound applied for the electrolyte stirring on morphological and mechanical characteristics of electrolytically produced copper coatings has been investigated. The copper coatings produced by the galvanostatic regime of the electrodeposition from the basic sulphate electrolyte and the electrolyte with added levelling/brightening additives at the low temperature were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques (surface morphology and topography, respectively) and by Vickers microindentation (hardness). The roughness of coatings increased with the increasing intensity of ultrasound, indicating that morphology of the coatings worsened with the enhanced application of ultrasonic waves. This is attributed to the strong effect of ultrasound on hydrodynamic conditions in the near-electrode layer, which is manifested by the increase of share of the activation control in the mixed activation-diffusion control of electrodeposition with increasing the intensity of ultrasound. The concept of "effective overpotential" originally proposed to explain a change of surface morphology in the conditions of vigorous hydrogen evolution is also applicable for a change of morphology of Cu coatings under the imposed effect of ultrasonic waves. Hardness analysis of the coatings showed that an intensity of applied ultrasound did not have any significant effect on the hardness, especially for the Cu coatings produced from the basic sulphate electrolyte.",
publisher = "International Association of Physical Chemists",
journal = "Journal of Electrochemical Science and Engineering",
title = "Influence of intensity of ultrasound on morphology and hardness of copper coatings obtained by electrodeposition",
pages = "615-603",
number = "4",
volume = "12",
doi = "10.5599/jese.1290"
}

Mladenović, I. O., Lamovec, J. S., Radović, D. G. V., Radojević, V. J.,& Nikolić, N. D.. (2022). Influence of intensity of ultrasound on morphology and hardness of copper coatings obtained by electrodeposition. in Journal of Electrochemical Science and Engineering
International Association of Physical Chemists., 12(4), 603-615.
https://doi.org/10.5599/jese.1290

Mladenović IO, Lamovec JS, Radović DGV, Radojević VJ, Nikolić ND. Influence of intensity of ultrasound on morphology and hardness of copper coatings obtained by electrodeposition. in Journal of Electrochemical Science and Engineering. 2022;12(4):603-615.
doi:10.5599/jese.1290 .

Mladenović, Ivana O., Lamovec, Jelena S., Radović, Dana G. Vasiljević, Radojević, Vesna J., Nikolić, Nebojša D., "Influence of intensity of ultrasound on morphology and hardness of copper coatings obtained by electrodeposition" in Journal of Electrochemical Science and Engineering, 12, no. 4 (2022):603-615,
https://doi.org/10.5599/jese.1290 . .

TY  - JOUR
AU  - Stajčić, Ivana
AU  - Stajčić, Aleksandar
AU  - Serpa, Cristina
AU  - Vasiljević-Radović, Dana
AU  - Ranđelović, Branislav
AU  - Radojević, Vesna
AU  - Fecht, Hans
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5296
AB  - Polymers and polymer matrix composites are commonly used materials with applications extending from packaging materials to delicate electronic devices. Epoxy resins and fiber-reinforced epoxy-based composites have been used as adhesives and construction parts. Fractal analysis has been recognized in materials science as a valuable tool for the microstructural characterization of composites by connecting fractal characteristics with composites’ functional properties. In this study, fractal reconstructions of different microstructural shapes in an epoxy-based composite were performed on field emission scanning electron microscopy (FESEM) images. These images were of glass fiber reinforced epoxy as well as a hybrid composite containing both glass and electrospun polystyrene fibers in an epoxy matrix. Fractal reconstruction enables the identification of self-similarity in the fractal structure, which represents a novelty in analyzing the fractal properties of materials. Fractal Real Finder software, based on the mathematical affine fractal regression model, was employed to reconstruct different microstructure shapes and calculate fractal dimensions to develop a method of predicting the optimal structure–property relations in composite materials in the future.
PB  - MDPI
T2  - Fractal and Fractional
T1  - Microstructure of Epoxy-Based Composites: Fractal Nature Analysis †
IS  - 12
SP  - 741
VL  - 6
DO  - 10.3390/fractalfract6120741
ER  - 

@article{
author = "Stajčić, Ivana and Stajčić, Aleksandar and Serpa, Cristina and Vasiljević-Radović, Dana and Ranđelović, Branislav and Radojević, Vesna and Fecht, Hans",
year = "2022",
abstract = "Polymers and polymer matrix composites are commonly used materials with applications extending from packaging materials to delicate electronic devices. Epoxy resins and fiber-reinforced epoxy-based composites have been used as adhesives and construction parts. Fractal analysis has been recognized in materials science as a valuable tool for the microstructural characterization of composites by connecting fractal characteristics with composites’ functional properties. In this study, fractal reconstructions of different microstructural shapes in an epoxy-based composite were performed on field emission scanning electron microscopy (FESEM) images. These images were of glass fiber reinforced epoxy as well as a hybrid composite containing both glass and electrospun polystyrene fibers in an epoxy matrix. Fractal reconstruction enables the identification of self-similarity in the fractal structure, which represents a novelty in analyzing the fractal properties of materials. Fractal Real Finder software, based on the mathematical affine fractal regression model, was employed to reconstruct different microstructure shapes and calculate fractal dimensions to develop a method of predicting the optimal structure–property relations in composite materials in the future.",
publisher = "MDPI",
journal = "Fractal and Fractional",
title = "Microstructure of Epoxy-Based Composites: Fractal Nature Analysis †",
number = "12",
pages = "741",
volume = "6",
doi = "10.3390/fractalfract6120741"
}

Stajčić, I., Stajčić, A., Serpa, C., Vasiljević-Radović, D., Ranđelović, B., Radojević, V.,& Fecht, H.. (2022). Microstructure of Epoxy-Based Composites: Fractal Nature Analysis †. in Fractal and Fractional
MDPI., 6(12), 741.
https://doi.org/10.3390/fractalfract6120741

Stajčić I, Stajčić A, Serpa C, Vasiljević-Radović D, Ranđelović B, Radojević V, Fecht H. Microstructure of Epoxy-Based Composites: Fractal Nature Analysis †. in Fractal and Fractional. 2022;6(12):741.
doi:10.3390/fractalfract6120741 .

Stajčić, Ivana, Stajčić, Aleksandar, Serpa, Cristina, Vasiljević-Radović, Dana, Ranđelović, Branislav, Radojević, Vesna, Fecht, Hans, "Microstructure of Epoxy-Based Composites: Fractal Nature Analysis †" in Fractal and Fractional, 6, no. 12 (2022):741,
https://doi.org/10.3390/fractalfract6120741 . .

TY  - JOUR
AU  - Mladenović, Ivana O.
AU  - Lamovec, Jelena S.
AU  - Vasiljević-Radović, Dana
AU  - Radojević, Vesna
AU  - Nikolić, Nebojša D.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5326
AB  - In this study, a novel procedure, based on application of the Chicot––Lesage (C–L) composite hardness model, was proposed for the determination of an absolute hardness of electrolytically produced copper coatings. The Cu coatings were electrodeposited on the Si(111) substrate by the pulsating current (PC) regime with a variation of the following parameters: the pause duration, the current density amplitude and the coating thickness. The topography of produced coatings was characterized by atomic force microscope (AFM), while a hardness of the coatings was examined by Vickers microindentation test. Applying the C–L model, the critical relative indentation depth (RID)c of 0.14 was determined, which is independent of all examined parameters of the PC regime. This RID value separated the area in which the composite hardness of the Cu coating corresponded to its absolute hardness (RID < 0.14) from the area in which the application of the C–L model was necessary for a determination of the absolute coating hardness (RID ≥ 0.14). The obtained value was in a good agreement with the value already published in the literature.
AB  - Предложен je нови поступак заснован на примени Chicot–Lesage (C–L) композитног модела тврдоће за одређивање апсолутне тврдоће електролитички добијених превлака бакра. Превлаке бакра су електрохемијски исталожене на силицијуму (111) оријентације режимом пулсирајуће струје варирањем следећих параметара: трајање паузе,
амплитудна густина струје и дебљина превлаке. Топографија произведених превлака је
окарактерисана микроскопијом атомских сила, док је тврдоћа превлака испитивана Викерсовим тестом утискивања. Применом C–L композитног модела тврдоће, одређена је
критична релативна дубина утискивања (RID)c, од 0,14, која је независна од свих испитиваних параметара режима пулсирајуће струје. Ова вредност раздваја област у којој композитна тврдоћа превлаке може да се изједначи са њеном апсолутном тврдоћом (RID < 0,14) од области у којој је неопходно применити C–L модел за одређивање апсолутне
тврдоће превлаке (RID ≥ 0,14). Добијена вредност RID показује добро слагање са вредностима публикованим у литератури.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Determination of the absolute hardness of electrolytically produced copper coatings by application of the Chicot–Lesage composite hardness model
T1  - ОДРЕЂИВАЊЕ АПСОЛУТНЕ ТВРДОЋЕ ЕЛЕКТРОЛИТИЧКИ ДОБИЈЕНИХ ПРЕВЛАКА БАКРА ПРИМЕНОМ CHICOT–LESAGE КОМПОЗИТНОГ МОДЕЛА ТВРДОЋЕ
EP  - 910
IS  - 7-8
SP  - 899
VL  - 87
DO  - 10.2298/JSC211014105M
ER  - 

@article{
author = "Mladenović, Ivana O. and Lamovec, Jelena S. and Vasiljević-Radović, Dana and Radojević, Vesna and Nikolić, Nebojša D.",
year = "2022",
abstract = "In this study, a novel procedure, based on application of the Chicot––Lesage (C–L) composite hardness model, was proposed for the determination of an absolute hardness of electrolytically produced copper coatings. The Cu coatings were electrodeposited on the Si(111) substrate by the pulsating current (PC) regime with a variation of the following parameters: the pause duration, the current density amplitude and the coating thickness. The topography of produced coatings was characterized by atomic force microscope (AFM), while a hardness of the coatings was examined by Vickers microindentation test. Applying the C–L model, the critical relative indentation depth (RID)c of 0.14 was determined, which is independent of all examined parameters of the PC regime. This RID value separated the area in which the composite hardness of the Cu coating corresponded to its absolute hardness (RID < 0.14) from the area in which the application of the C–L model was necessary for a determination of the absolute coating hardness (RID ≥ 0.14). The obtained value was in a good agreement with the value already published in the literature., Предложен je нови поступак заснован на примени Chicot–Lesage (C–L) композитног модела тврдоће за одређивање апсолутне тврдоће електролитички добијених превлака бакра. Превлаке бакра су електрохемијски исталожене на силицијуму (111) оријентације режимом пулсирајуће струје варирањем следећих параметара: трајање паузе,
амплитудна густина струје и дебљина превлаке. Топографија произведених превлака је
окарактерисана микроскопијом атомских сила, док је тврдоћа превлака испитивана Викерсовим тестом утискивања. Применом C–L композитног модела тврдоће, одређена је
критична релативна дубина утискивања (RID)c, од 0,14, која је независна од свих испитиваних параметара режима пулсирајуће струје. Ова вредност раздваја област у којој композитна тврдоћа превлаке може да се изједначи са њеном апсолутном тврдоћом (RID < 0,14) од области у којој је неопходно применити C–L модел за одређивање апсолутне
тврдоће превлаке (RID ≥ 0,14). Добијена вредност RID показује добро слагање са вредностима публикованим у литератури.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Determination of the absolute hardness of electrolytically produced copper coatings by application of the Chicot–Lesage composite hardness model, ОДРЕЂИВАЊЕ АПСОЛУТНЕ ТВРДОЋЕ ЕЛЕКТРОЛИТИЧКИ ДОБИЈЕНИХ ПРЕВЛАКА БАКРА ПРИМЕНОМ CHICOT–LESAGE КОМПОЗИТНОГ МОДЕЛА ТВРДОЋЕ",
pages = "910-899",
number = "7-8",
volume = "87",
doi = "10.2298/JSC211014105M"
}

Mladenović, I. O., Lamovec, J. S., Vasiljević-Radović, D., Radojević, V.,& Nikolić, N. D.. (2022). Determination of the absolute hardness of electrolytically produced copper coatings by application of the Chicot–Lesage composite hardness model. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 87(7-8), 899-910.
https://doi.org/10.2298/JSC211014105M

Mladenović IO, Lamovec JS, Vasiljević-Radović D, Radojević V, Nikolić ND. Determination of the absolute hardness of electrolytically produced copper coatings by application of the Chicot–Lesage composite hardness model. in Journal of the Serbian Chemical Society. 2022;87(7-8):899-910.
doi:10.2298/JSC211014105M .

Mladenović, Ivana O., Lamovec, Jelena S., Vasiljević-Radović, Dana, Radojević, Vesna, Nikolić, Nebojša D., "Determination of the absolute hardness of electrolytically produced copper coatings by application of the Chicot–Lesage composite hardness model" in Journal of the Serbian Chemical Society, 87, no. 7-8 (2022):899-910,
https://doi.org/10.2298/JSC211014105M . .

TY  - JOUR
AU  - Romčević, Nebojša
AU  - Ćurčić, Milica
AU  - Radojević, Vesna
AU  - Trajić, Jelena
AU  - Paunović, Novica
AU  - Babić, Biljana
AU  - Hadžić, Branka
AU  - Romčević, Maja
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5338
AB  - The ZnS nanoparticles, as starting materials in the present study, were synthesized mechanochemically. Surface modification of the obtained nanoparticles was performed by 3-Mercaptopropyltrimethoxysilane. SEM analysis indicates that modification of ZnS nanoparticles with 3-Mercaptopropyltrimethoxysilane causes the appearance of the quasi core-shell structure. The FIR spectrum analysis was performed by fitting procedure, taking into account the appearance of quasi core-shell structure. Optical and structural characteristics of both ZnS and 3-Mercaptopropyltrimethoxysilanes are revealed on the spectrum. An interference effect modulated by the ZnS phonon properties was also detected. Obtained results indicate that the quasi core-shell structures could be successfully applied in the interferometry.
PB  - National Institute of Optoelectronics
T2  - Optoelectronics and Advanced Materials, Rapid Communications
T1  - Modulated interference effect by ZnS nanoparticles / 3-Mercaptopropyltrimethoxysilane quasi core-shell structure: Far-infrared spectroscopy
EP  - 363
IS  - 7-8
SP  - 359
VL  - 16
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5338
ER  - 

@article{
author = "Romčević, Nebojša and Ćurčić, Milica and Radojević, Vesna and Trajić, Jelena and Paunović, Novica and Babić, Biljana and Hadžić, Branka and Romčević, Maja",
year = "2022",
abstract = "The ZnS nanoparticles, as starting materials in the present study, were synthesized mechanochemically. Surface modification of the obtained nanoparticles was performed by 3-Mercaptopropyltrimethoxysilane. SEM analysis indicates that modification of ZnS nanoparticles with 3-Mercaptopropyltrimethoxysilane causes the appearance of the quasi core-shell structure. The FIR spectrum analysis was performed by fitting procedure, taking into account the appearance of quasi core-shell structure. Optical and structural characteristics of both ZnS and 3-Mercaptopropyltrimethoxysilanes are revealed on the spectrum. An interference effect modulated by the ZnS phonon properties was also detected. Obtained results indicate that the quasi core-shell structures could be successfully applied in the interferometry.",
publisher = "National Institute of Optoelectronics",
journal = "Optoelectronics and Advanced Materials, Rapid Communications",
title = "Modulated interference effect by ZnS nanoparticles / 3-Mercaptopropyltrimethoxysilane quasi core-shell structure: Far-infrared spectroscopy",
pages = "363-359",
number = "7-8",
volume = "16",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5338"
}

Romčević, N., Ćurčić, M., Radojević, V., Trajić, J., Paunović, N., Babić, B., Hadžić, B.,& Romčević, M.. (2022). Modulated interference effect by ZnS nanoparticles / 3-Mercaptopropyltrimethoxysilane quasi core-shell structure: Far-infrared spectroscopy. in Optoelectronics and Advanced Materials, Rapid Communications
National Institute of Optoelectronics., 16(7-8), 359-363.
https://hdl.handle.net/21.15107/rcub_technorep_5338

Romčević N, Ćurčić M, Radojević V, Trajić J, Paunović N, Babić B, Hadžić B, Romčević M. Modulated interference effect by ZnS nanoparticles / 3-Mercaptopropyltrimethoxysilane quasi core-shell structure: Far-infrared spectroscopy. in Optoelectronics and Advanced Materials, Rapid Communications. 2022;16(7-8):359-363.
https://hdl.handle.net/21.15107/rcub_technorep_5338 .

Romčević, Nebojša, Ćurčić, Milica, Radojević, Vesna, Trajić, Jelena, Paunović, Novica, Babić, Biljana, Hadžić, Branka, Romčević, Maja, "Modulated interference effect by ZnS nanoparticles / 3-Mercaptopropyltrimethoxysilane quasi core-shell structure: Far-infrared spectroscopy" in Optoelectronics and Advanced Materials, Rapid Communications, 16, no. 7-8 (2022):359-363,
https://hdl.handle.net/21.15107/rcub_technorep_5338 .

TY  - JOUR
AU  - Pešić, Ivan
AU  - Petrović, Miloš
AU  - Vuksanović, Marija
AU  - Popović, Maja
AU  - Rabasović, Maja
AU  - Šević, Dragutin
AU  - Radojević, Vesna
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5456
AB  - Processing   and characterization   of   PMMA-MXene   composites   were   investigated.γ-Methacryloxypropyltrimethoxy(MEMO)  silane  was  usedto  modify  the  surface  of  MXenesand improve the compatibility between MXenes and the polymer. The FTIR analysis revealed the formation of a chemical bond between MXene and MEMO silane, while the XPS analysis confirmed the presence of silicon in the functionalized MXene.PMMA composites with non-functionalized  and  functionalized  MXene  were  prepared using  a solution  casting  method. Tensile  testsshowed  that,compared  to  neat  PMMA, Young’smodulusincreasedin  both composites by 22.1%and  27.6%,  respectively. As  a  result  of  coupling  between  the  PMMA matrix and the surface-modified MXenes, thetensile strength also increased by about 37%.In addition,  optical  spectroscopy  showed  higher  absorption  for  the  composite  with surface-modifiedMXenes  and  short-livedfluorescence  with  emission  intensity  sensitive  to  the crumpling of functionalized MXene nanosheets.
PB  - Taylor & Francis Group
T2  - Nanocomposites
T1  - Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane
DO  - 10.1080/20550324.2023.2168844
ER  - 

@article{
author = "Pešić, Ivan and Petrović, Miloš and Vuksanović, Marija and Popović, Maja and Rabasović, Maja and Šević, Dragutin and Radojević, Vesna",
year = "2022",
abstract = "Processing   and characterization   of   PMMA-MXene   composites   were   investigated.γ-Methacryloxypropyltrimethoxy(MEMO)  silane  was  usedto  modify  the  surface  of  MXenesand improve the compatibility between MXenes and the polymer. The FTIR analysis revealed the formation of a chemical bond between MXene and MEMO silane, while the XPS analysis confirmed the presence of silicon in the functionalized MXene.PMMA composites with non-functionalized  and  functionalized  MXene  were  prepared using  a solution  casting  method. Tensile  testsshowed  that,compared  to  neat  PMMA, Young’smodulusincreasedin  both composites by 22.1%and  27.6%,  respectively. As  a  result  of  coupling  between  the  PMMA matrix and the surface-modified MXenes, thetensile strength also increased by about 37%.In addition,  optical  spectroscopy  showed  higher  absorption  for  the  composite  with surface-modifiedMXenes  and  short-livedfluorescence  with  emission  intensity  sensitive  to  the crumpling of functionalized MXene nanosheets.",
publisher = "Taylor & Francis Group",
journal = "Nanocomposites",
title = "Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane",
doi = "10.1080/20550324.2023.2168844"
}

Pešić, I., Petrović, M., Vuksanović, M., Popović, M., Rabasović, M., Šević, D.,& Radojević, V.. (2022). Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane. in Nanocomposites
Taylor & Francis Group..
https://doi.org/10.1080/20550324.2023.2168844

Pešić I, Petrović M, Vuksanović M, Popović M, Rabasović M, Šević D, Radojević V. Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane. in Nanocomposites. 2022;.
doi:10.1080/20550324.2023.2168844 .

Pešić, Ivan, Petrović, Miloš, Vuksanović, Marija, Popović, Maja, Rabasović, Maja, Šević, Dragutin, Radojević, Vesna, "Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane" in Nanocomposites (2022),
https://doi.org/10.1080/20550324.2023.2168844 . .

TY  - JOUR
AU  - Pešić, Ivan
AU  - Petrović, Miloš
AU  - Vuksanović, Marija
AU  - Popović, Maja
AU  - Rabasović, Maja
AU  - Šević, Dragutin
AU  - Radojević, Vesna
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6383
AB  - Processing and characterization of PMMA-MXene composites were investigated. γ-Methacryloxypropyltrimethoxy (MEMO) silane was used to modify the surface of MXenes and improve the compatibility between MXenes and the polymer. The FTIR analysis revealed the formation of a chemical bond between MXene and MEMO silane, while the XPS analysis confirmed the presence of silicon in the functionalized MXene. PMMA composites with non-functionalized and functionalized MXene were prepared using a solution casting method. Tensile tests showed that, compared to neat PMMA, Young’s modulus increased in both composites by 22.1 and 27.6%, respectively. As a result of coupling between the PMMA matrix and the surface-modified MXenes, the tensile strength also increased by about 37%. In addition, optical spectroscopy showed higher absorption for the composite with surface-modified MXenes and short-lived fluorescence with emission intensity sensitive to the crumpling of functionalized MXene nanosheets.
PB  - Taylor & Francis Group
T2  - Nanocomposites
T1  - Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane
EP  - 226
IS  - 1
SP  - 215
VL  - 8
DO  - 10.1080/20550324.2023.2168844
ER  - 

@article{
author = "Pešić, Ivan and Petrović, Miloš and Vuksanović, Marija and Popović, Maja and Rabasović, Maja and Šević, Dragutin and Radojević, Vesna",
year = "2022",
abstract = "Processing and characterization of PMMA-MXene composites were investigated. γ-Methacryloxypropyltrimethoxy (MEMO) silane was used to modify the surface of MXenes and improve the compatibility between MXenes and the polymer. The FTIR analysis revealed the formation of a chemical bond between MXene and MEMO silane, while the XPS analysis confirmed the presence of silicon in the functionalized MXene. PMMA composites with non-functionalized and functionalized MXene were prepared using a solution casting method. Tensile tests showed that, compared to neat PMMA, Young’s modulus increased in both composites by 22.1 and 27.6%, respectively. As a result of coupling between the PMMA matrix and the surface-modified MXenes, the tensile strength also increased by about 37%. In addition, optical spectroscopy showed higher absorption for the composite with surface-modified MXenes and short-lived fluorescence with emission intensity sensitive to the crumpling of functionalized MXene nanosheets.",
publisher = "Taylor & Francis Group",
journal = "Nanocomposites",
title = "Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane",
pages = "226-215",
number = "1",
volume = "8",
doi = "10.1080/20550324.2023.2168844"
}

Pešić, I., Petrović, M., Vuksanović, M., Popović, M., Rabasović, M., Šević, D.,& Radojević, V.. (2022). Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane. in Nanocomposites
Taylor & Francis Group., 8(1), 215-226.
https://doi.org/10.1080/20550324.2023.2168844

Pešić I, Petrović M, Vuksanović M, Popović M, Rabasović M, Šević D, Radojević V. Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane. in Nanocomposites. 2022;8(1):215-226.
doi:10.1080/20550324.2023.2168844 .

Pešić, Ivan, Petrović, Miloš, Vuksanović, Marija, Popović, Maja, Rabasović, Maja, Šević, Dragutin, Radojević, Vesna, "Structural, optical and mechanical characterization of PMMA- MXene composites functionalized with MEMO silane" in Nanocomposites, 8, no. 1 (2022):215-226,
https://doi.org/10.1080/20550324.2023.2168844 . .

Obradović, V., Vuksanović, M., Tomić, N., Petrović, M., Marinković, A., Radojević, V., Jančić Heinemann, R., Stojanović, D.,& Uskoković, P.. (2021). Primena čestica silicijum dioksida dobijenog iz biomase za ojačanje aramidnih kompozita otpornih na udar. .
https://hdl.handle.net/21.15107/rcub_technorep_7067

Obradović V, Vuksanović M, Tomić N, Petrović M, Marinković A, Radojević V, Jančić Heinemann R, Stojanović D, Uskoković P. Primena čestica silicijum dioksida dobijenog iz biomase za ojačanje aramidnih kompozita otpornih na udar. 2021;.
https://hdl.handle.net/21.15107/rcub_technorep_7067 .

Obradović, Vera, Vuksanović, Marija, Tomić, Nataša, Petrović, Miloš, Marinković, Aleksandar, Radojević, Vesna, Jančić Heinemann, Radmila, Stojanović, Dušica, Uskoković, Petar, "Primena čestica silicijum dioksida dobijenog iz biomase za ojačanje aramidnih kompozita otpornih na udar" (2021),
https://hdl.handle.net/21.15107/rcub_technorep_7067 .

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Egelja, Adela
AU  - Barudzija, Tanja
AU  - Tomić, Nataša
AU  - Petrović, Miloš
AU  - Marinković, Aleksandar
AU  - Radojević, Vesna
AU  - Jančić-Heinemann, Radmila
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4793
AB  - Silica particles were obtained from rice husk to which layered double hydroxide particles were deposited (weight ratio 1 : 1). Fe2+-Al3+ layered double hydroxides (FeAl-LDH) were synthesized by co-precipitation with ratios Fe : Al of 3 : 1 in the presence of SiO2 particles from the rice husk. Characterization of the synthesized FeAl-LDH"SiO2 particles was performed by X-ray diffraction, Fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy with EDS. Prepared FeAl-LDH"SiO2 particles were used as reinforcing agents in 1, 3 and 5 wt% quantity in poly (methyl) methacrylate matrix. The aim of this study was to examine whether FeAl-LDH"SiO2 particles affect the mechanical properties of polymer composite materials. The morphology of the composites was examined using a field emission scanning electron microscope. Microindentation, tensile and impact testing determined the mechanical properties of the obtained composites.
T2  - Royal Society Open Science
T1  - Inorganically modified particles FeAl-LDH"SiO2 as reinforcement in poly (methyl) methacrylate matrix composite
IS  - 9
VL  - 8
DO  - 10.1098/rsos.210835
ER  - 

@article{
author = "Vuksanović, Marija M. and Egelja, Adela and Barudzija, Tanja and Tomić, Nataša and Petrović, Miloš and Marinković, Aleksandar and Radojević, Vesna and Jančić-Heinemann, Radmila",
year = "2021",
abstract = "Silica particles were obtained from rice husk to which layered double hydroxide particles were deposited (weight ratio 1 : 1). Fe2+-Al3+ layered double hydroxides (FeAl-LDH) were synthesized by co-precipitation with ratios Fe : Al of 3 : 1 in the presence of SiO2 particles from the rice husk. Characterization of the synthesized FeAl-LDH"SiO2 particles was performed by X-ray diffraction, Fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy with EDS. Prepared FeAl-LDH"SiO2 particles were used as reinforcing agents in 1, 3 and 5 wt% quantity in poly (methyl) methacrylate matrix. The aim of this study was to examine whether FeAl-LDH"SiO2 particles affect the mechanical properties of polymer composite materials. The morphology of the composites was examined using a field emission scanning electron microscope. Microindentation, tensile and impact testing determined the mechanical properties of the obtained composites.",
journal = "Royal Society Open Science",
title = "Inorganically modified particles FeAl-LDH"SiO2 as reinforcement in poly (methyl) methacrylate matrix composite",
number = "9",
volume = "8",
doi = "10.1098/rsos.210835"
}

Vuksanović, M. M., Egelja, A., Barudzija, T., Tomić, N., Petrović, M., Marinković, A., Radojević, V.,& Jančić-Heinemann, R.. (2021). Inorganically modified particles FeAl-LDH"SiO2 as reinforcement in poly (methyl) methacrylate matrix composite. in Royal Society Open Science, 8(9).
https://doi.org/10.1098/rsos.210835

Vuksanović MM, Egelja A, Barudzija T, Tomić N, Petrović M, Marinković A, Radojević V, Jančić-Heinemann R. Inorganically modified particles FeAl-LDH"SiO2 as reinforcement in poly (methyl) methacrylate matrix composite. in Royal Society Open Science. 2021;8(9).
doi:10.1098/rsos.210835 .

Vuksanović, Marija M., Egelja, Adela, Barudzija, Tanja, Tomić, Nataša, Petrović, Miloš, Marinković, Aleksandar, Radojević, Vesna, Jančić-Heinemann, Radmila, "Inorganically modified particles FeAl-LDH"SiO2 as reinforcement in poly (methyl) methacrylate matrix composite" in Royal Society Open Science, 8, no. 9 (2021),
https://doi.org/10.1098/rsos.210835 . .

TY  - JOUR
AU  - Mladenović, Ivana O.
AU  - Lamovec, Jelena S.
AU  - Vasiljević-Radović, Dana G.
AU  - Vasilić, Rastko
AU  - Radojević, Vesna
AU  - Nikolić, Nebojša D.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4816
AB  - The influence of various electrolysis parameters, such as the type of cathode, composition of the electrolyte and electrolysis time, on the morphology, structure and hardness of copper coatings has been investigated. Morphology and structure of the coatings were analyzed by scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray diffraction (XRD), while coating hardness was examined by Vickers microindentation test applying the Chicot-Lesage (C-L) composite hardness model. Depending on the conditions of electrolysis, two types of Cu coatings were obtained: fine-grained mat coatings with a strong (220) preferred orientation from the sulfate electrolyte and smooth mirror bright coatings with a strong (200) preferred orientation from the electrolyte with added leveling/brightening additives. The mat coatings showed larger both measured composite and calculated coating hardness than the mirror bright coatings, that can be explained by the phenomena on boundary among grains. Independent of electrolysis conditions, the critical relative indentation depth (RID) of 0.14 was established for all types of the Cu coatings, separating the zone in which the composite hardness can be equaled with the coating hardness and the zone requiring an application of the C-L model for a determination of the absolute hardness of the Cu coatings.
T2  - Metals
T1  - Implementation of the Chicot-Lesage Composite Hardness Model in a Determination of Absolute Hardness of Copper Coatings Obtained by the Electrodeposition Processes
IS  - 11
VL  - 11
DO  - 10.3390/met11111807
ER  - 

@article{
author = "Mladenović, Ivana O. and Lamovec, Jelena S. and Vasiljević-Radović, Dana G. and Vasilić, Rastko and Radojević, Vesna and Nikolić, Nebojša D.",
year = "2021",
abstract = "The influence of various electrolysis parameters, such as the type of cathode, composition of the electrolyte and electrolysis time, on the morphology, structure and hardness of copper coatings has been investigated. Morphology and structure of the coatings were analyzed by scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray diffraction (XRD), while coating hardness was examined by Vickers microindentation test applying the Chicot-Lesage (C-L) composite hardness model. Depending on the conditions of electrolysis, two types of Cu coatings were obtained: fine-grained mat coatings with a strong (220) preferred orientation from the sulfate electrolyte and smooth mirror bright coatings with a strong (200) preferred orientation from the electrolyte with added leveling/brightening additives. The mat coatings showed larger both measured composite and calculated coating hardness than the mirror bright coatings, that can be explained by the phenomena on boundary among grains. Independent of electrolysis conditions, the critical relative indentation depth (RID) of 0.14 was established for all types of the Cu coatings, separating the zone in which the composite hardness can be equaled with the coating hardness and the zone requiring an application of the C-L model for a determination of the absolute hardness of the Cu coatings.",
journal = "Metals",
title = "Implementation of the Chicot-Lesage Composite Hardness Model in a Determination of Absolute Hardness of Copper Coatings Obtained by the Electrodeposition Processes",
number = "11",
volume = "11",
doi = "10.3390/met11111807"
}

Mladenović, I. O., Lamovec, J. S., Vasiljević-Radović, D. G., Vasilić, R., Radojević, V.,& Nikolić, N. D.. (2021). Implementation of the Chicot-Lesage Composite Hardness Model in a Determination of Absolute Hardness of Copper Coatings Obtained by the Electrodeposition Processes. in Metals, 11(11).
https://doi.org/10.3390/met11111807

Mladenović IO, Lamovec JS, Vasiljević-Radović DG, Vasilić R, Radojević V, Nikolić ND. Implementation of the Chicot-Lesage Composite Hardness Model in a Determination of Absolute Hardness of Copper Coatings Obtained by the Electrodeposition Processes. in Metals. 2021;11(11).
doi:10.3390/met11111807 .

Mladenović, Ivana O., Lamovec, Jelena S., Vasiljević-Radović, Dana G., Vasilić, Rastko, Radojević, Vesna, Nikolić, Nebojša D., "Implementation of the Chicot-Lesage Composite Hardness Model in a Determination of Absolute Hardness of Copper Coatings Obtained by the Electrodeposition Processes" in Metals, 11, no. 11 (2021),
https://doi.org/10.3390/met11111807 . .

TY  - JOUR
AU  - Mladenovic, Ivana O.
AU  - Nikolić, Nebojša D.
AU  - Lamovec, Jelena S.
AU  - Vasiljevic-Radovic, Dana
AU  - Radojević, Vesna
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4949
AB  - The mechanical characteristics of electrochemically deposited copper coatings have been examined by application of two hardness composite models: the Chicot-Lesage (C-L) and the Cheng-Gao (C-G) models. The 10, 20, 40 and 60 mu m thick fine-grained Cu coatings were electrodeposited on the brass by the regime of pulsating current (PC) at an average current density of 50 mA cm(-2), and were characterized by scanning electron (SEM), atomic force (AFM) and optical (OM) microscopes. By application of the C-L model we determined a limiting relative indentation depth (RID) value that separates the area of the coating hardness from that with a strong effect of the substrate on the measured composite hardness. The coating hardness values in the 0.9418-1.1399 GPa range, obtained by the C-G model, confirmed the assumption that the Cu coatings on the brass belongs to the "soft film on hard substrate" composite hardness system. The obtained stress exponents in the 4.35-7.69 range at an applied load of 0.49 N indicated that the dominant creep mechanism is the dislocation creep and the dislocation climb. The obtained mechanical characteristics were compared with those recently obtained on the Si(111) substrate, and the effects of substrate characteristics such as hardness and roughness on the mechanical characteristics of the electrodeposited Cu coatings were discussed and explained.
T2  - Metals
T1  - Application of the Composite Hardness Models in the Analysis of Mechanical Characteristics of Electrolytically Deposited Copper Coatings: The Effect of the Type of Substrate
IS  - 1
VL  - 11
DO  - 10.3390/met11010111
ER  - 

@article{
author = "Mladenovic, Ivana O. and Nikolić, Nebojša D. and Lamovec, Jelena S. and Vasiljevic-Radovic, Dana and Radojević, Vesna",
year = "2021",
abstract = "The mechanical characteristics of electrochemically deposited copper coatings have been examined by application of two hardness composite models: the Chicot-Lesage (C-L) and the Cheng-Gao (C-G) models. The 10, 20, 40 and 60 mu m thick fine-grained Cu coatings were electrodeposited on the brass by the regime of pulsating current (PC) at an average current density of 50 mA cm(-2), and were characterized by scanning electron (SEM), atomic force (AFM) and optical (OM) microscopes. By application of the C-L model we determined a limiting relative indentation depth (RID) value that separates the area of the coating hardness from that with a strong effect of the substrate on the measured composite hardness. The coating hardness values in the 0.9418-1.1399 GPa range, obtained by the C-G model, confirmed the assumption that the Cu coatings on the brass belongs to the "soft film on hard substrate" composite hardness system. The obtained stress exponents in the 4.35-7.69 range at an applied load of 0.49 N indicated that the dominant creep mechanism is the dislocation creep and the dislocation climb. The obtained mechanical characteristics were compared with those recently obtained on the Si(111) substrate, and the effects of substrate characteristics such as hardness and roughness on the mechanical characteristics of the electrodeposited Cu coatings were discussed and explained.",
journal = "Metals",
title = "Application of the Composite Hardness Models in the Analysis of Mechanical Characteristics of Electrolytically Deposited Copper Coatings: The Effect of the Type of Substrate",
number = "1",
volume = "11",
doi = "10.3390/met11010111"
}

Mladenovic, I. O., Nikolić, N. D., Lamovec, J. S., Vasiljevic-Radovic, D.,& Radojević, V.. (2021). Application of the Composite Hardness Models in the Analysis of Mechanical Characteristics of Electrolytically Deposited Copper Coatings: The Effect of the Type of Substrate. in Metals, 11(1).
https://doi.org/10.3390/met11010111

Mladenovic IO, Nikolić ND, Lamovec JS, Vasiljevic-Radovic D, Radojević V. Application of the Composite Hardness Models in the Analysis of Mechanical Characteristics of Electrolytically Deposited Copper Coatings: The Effect of the Type of Substrate. in Metals. 2021;11(1).
doi:10.3390/met11010111 .

Mladenovic, Ivana O., Nikolić, Nebojša D., Lamovec, Jelena S., Vasiljevic-Radovic, Dana, Radojević, Vesna, "Application of the Composite Hardness Models in the Analysis of Mechanical Characteristics of Electrolytically Deposited Copper Coatings: The Effect of the Type of Substrate" in Metals, 11, no. 1 (2021),
https://doi.org/10.3390/met11010111 . .