Chemical and structural designing of nanomaterials for application in medicine and tissue engineering

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Chemical and structural designing of nanomaterials for application in medicine and tissue engineering (en)
Хемијско и структурно дизајнирање наноматеријала за примену у медицини и инжењерству ткива (sr)
Hemijsko i strukturno dizajniranje nanomaterijala za primenu u medicini i inženjerstvu tkiva (sr_RS)
Authors

Publications

Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth

Petrović, Violeta; Opačić-Galić, Vanja; Jokanović, Vukoman; Sopta, Jelena; Prokić, Bogomir Bolka; Živković, Slavoljub

(2021)


                                            

                                            
Petrović, V., Opačić-Galić, V., Jokanović, V., Sopta, J., Prokić, B. B.,& Živković, S.. (2021). Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth. in Acta Veterinaria-Beograd, 71(1), 85-97.
https://doi.org/10.2478/acve-2021-0006
Petrović V, Opačić-Galić V, Jokanović V, Sopta J, Prokić BB, Živković S. Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth. in Acta Veterinaria-Beograd. 2021;71(1):85-97.
doi:10.2478/acve-2021-0006 .
Petrović, Violeta, Opačić-Galić, Vanja, Jokanović, Vukoman, Sopta, Jelena, Prokić, Bogomir Bolka, Živković, Slavoljub, "Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth" in Acta Veterinaria-Beograd, 71, no. 1 (2021):85-97,
https://doi.org/10.2478/acve-2021-0006 . .

Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon

Markushev, Dragana K.; Markushev, Dragan D.; Aleksić, Sanja M.; Pantić, Dragan S.; Galović, Slobodanka P.; Todorović, Dragan M.; Ordonez-Miranda, Jose

(2020)

TY  - JOUR
AU  - Markushev, Dragana K.
AU  - Markushev, Dragan D.
AU  - Aleksić, Sanja M.
AU  - Pantić, Dragan S.
AU  - Galović, Slobodanka P.
AU  - Todorović, Dragan M.
AU  - Ordonez-Miranda, Jose
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9663
AB  - Based on the experimental and theoretical signals of an open photoacoustic cell operating with modulation frequencies from 20 Hz to
20 kHz, a significant contribution of photogenerated excess carriers on the thermal and thermoelastic responses of an n-type silicon plate is
observed for the very first time. This is achieved by comparing the measured amplitude and phase of the photoacoustic signal with their
corresponding theoretical thermoelastic counterparts, for high enough modulation frequencies mainly. It is shown that the amplitude of the
thermoelastic component of plasma-thin samples varies about two orders of magnitude with respect to the corresponding one of
plasma-thick samples. Furthermore, we find a maximal temperature difference ΔT =− 35 nK between the illuminated and non-illuminated
sample surfaces, which shows that thin silicon plates with excess carriers could be used as heat sinks.
T2  - Journal of Applied Physics
T1  - Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon
VL  - 128
IS  - 9
SP  - 095103
DO  - 10.1063/5.0015657
ER  - 
@article{
author = "Markushev, Dragana K. and Markushev, Dragan D. and Aleksić, Sanja M. and Pantić, Dragan S. and Galović, Slobodanka P. and Todorović, Dragan M. and Ordonez-Miranda, Jose",
year = "2020",
abstract = "Based on the experimental and theoretical signals of an open photoacoustic cell operating with modulation frequencies from 20 Hz to
20 kHz, a significant contribution of photogenerated excess carriers on the thermal and thermoelastic responses of an n-type silicon plate is
observed for the very first time. This is achieved by comparing the measured amplitude and phase of the photoacoustic signal with their
corresponding theoretical thermoelastic counterparts, for high enough modulation frequencies mainly. It is shown that the amplitude of the
thermoelastic component of plasma-thin samples varies about two orders of magnitude with respect to the corresponding one of
plasma-thick samples. Furthermore, we find a maximal temperature difference ΔT =− 35 nK between the illuminated and non-illuminated
sample surfaces, which shows that thin silicon plates with excess carriers could be used as heat sinks.",
journal = "Journal of Applied Physics",
title = "Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon",
volume = "128",
number = "9",
pages = "095103",
doi = "10.1063/5.0015657"
}
Markushev, D. K., Markushev, D. D., Aleksić, S. M., Pantić, D. S., Galović, S. P., Todorović, D. M.,& Ordonez-Miranda, J.. (2020). Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon. in Journal of Applied Physics, 128(9), 095103.
https://doi.org/10.1063/5.0015657
Markushev DK, Markushev DD, Aleksić SM, Pantić DS, Galović SP, Todorović DM, Ordonez-Miranda J. Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon. in Journal of Applied Physics. 2020;128(9):095103.
doi:10.1063/5.0015657 .
Markushev, Dragana K., Markushev, Dragan D., Aleksić, Sanja M., Pantić, Dragan S., Galović, Slobodanka P., Todorović, Dragan M., Ordonez-Miranda, Jose, "Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon" in Journal of Applied Physics, 128, no. 9 (2020):095103,
https://doi.org/10.1063/5.0015657 . .
2
2

Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction

Micić, Milutin; Antonijević, Đorđe; Milutinović-Smiljanić, Sanja; Trišić, Dijana; Čolović, Božana M.; Kosanović, Dejana; Prokić, Bogomir Bolka; Vasić, Jugoslav; Živković, Slavoljub; Milašin, Jelena; Danilović, Vesna; Đurić, Marija P.; Jokanović, Vukoman R.

(2020)

TY  - JOUR
AU  - Micić, Milutin
AU  - Antonijević, Đorđe
AU  - Milutinović-Smiljanić, Sanja
AU  - Trišić, Dijana
AU  - Čolović, Božana M.
AU  - Kosanović, Dejana
AU  - Prokić, Bogomir Bolka
AU  - Vasić, Jugoslav
AU  - Živković, Slavoljub
AU  - Milašin, Jelena
AU  - Danilović, Vesna
AU  - Đurić, Marija P.
AU  - Jokanović, Vukoman R.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8993
AB  - The aim of this study was to develop novel hydroxyapatite (HAP)-based bioactive bone replacement materials for segmental osteotomy reconstruction. Customized three-dimensional (3D) bone construct was manufactured from nanohydroxyapatite (nHAP) with poly(lactide-co-glycolide) (PLGA) coating using 3D models derived from the computed tomography (CT) scanning of the rabbit's ulna and gradient 3D printing of the bone substitute mimicking the anatomical shape of the natural bone defect. Engineered construct revealed adequate micro-architectural design for successful bone regeneration having a total porosity of 64% and an average pore size of 256 μm. Radiography and micro-CT analysis depicted new bone apposition through the whole length of the reconstructed ulna with a small area of non-resorbed construct in the central area of defect. Histological analysis revealed new bone formation with both endochondral and endesmal type of ossification. Immunohistochemistry analysis depicted the presence of bone formation indicators-bone morphogenetic protein (BMP), osteocalcin (OCN) and osteopontin (OPN) within newly formed bone. Manufactured personalized construct acts as a "smart" responsive biomaterial capable of modulating the functionality and potential for the personalized bone reconstruction on a clinically relevant length scale.
T2  - Biomedizinische Technik
T1  - Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction
VL  - 65
IS  - 4
SP  - 491
EP  - 505
DO  - 10.1515/bmt-2019-0218
ER  - 
@article{
author = "Micić, Milutin and Antonijević, Đorđe and Milutinović-Smiljanić, Sanja and Trišić, Dijana and Čolović, Božana M. and Kosanović, Dejana and Prokić, Bogomir Bolka and Vasić, Jugoslav and Živković, Slavoljub and Milašin, Jelena and Danilović, Vesna and Đurić, Marija P. and Jokanović, Vukoman R.",
year = "2020",
abstract = "The aim of this study was to develop novel hydroxyapatite (HAP)-based bioactive bone replacement materials for segmental osteotomy reconstruction. Customized three-dimensional (3D) bone construct was manufactured from nanohydroxyapatite (nHAP) with poly(lactide-co-glycolide) (PLGA) coating using 3D models derived from the computed tomography (CT) scanning of the rabbit's ulna and gradient 3D printing of the bone substitute mimicking the anatomical shape of the natural bone defect. Engineered construct revealed adequate micro-architectural design for successful bone regeneration having a total porosity of 64% and an average pore size of 256 μm. Radiography and micro-CT analysis depicted new bone apposition through the whole length of the reconstructed ulna with a small area of non-resorbed construct in the central area of defect. Histological analysis revealed new bone formation with both endochondral and endesmal type of ossification. Immunohistochemistry analysis depicted the presence of bone formation indicators-bone morphogenetic protein (BMP), osteocalcin (OCN) and osteopontin (OPN) within newly formed bone. Manufactured personalized construct acts as a "smart" responsive biomaterial capable of modulating the functionality and potential for the personalized bone reconstruction on a clinically relevant length scale.",
journal = "Biomedizinische Technik",
title = "Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction",
volume = "65",
number = "4",
pages = "491-505",
doi = "10.1515/bmt-2019-0218"
}
Micić, M., Antonijević, Đ., Milutinović-Smiljanić, S., Trišić, D., Čolović, B. M., Kosanović, D., Prokić, B. B., Vasić, J., Živković, S., Milašin, J., Danilović, V., Đurić, M. P.,& Jokanović, V. R.. (2020). Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction. in Biomedizinische Technik, 65(4), 491-505.
https://doi.org/10.1515/bmt-2019-0218
Micić M, Antonijević Đ, Milutinović-Smiljanić S, Trišić D, Čolović BM, Kosanović D, Prokić BB, Vasić J, Živković S, Milašin J, Danilović V, Đurić MP, Jokanović VR. Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction. in Biomedizinische Technik. 2020;65(4):491-505.
doi:10.1515/bmt-2019-0218 .
Micić, Milutin, Antonijević, Đorđe, Milutinović-Smiljanić, Sanja, Trišić, Dijana, Čolović, Božana M., Kosanović, Dejana, Prokić, Bogomir Bolka, Vasić, Jugoslav, Živković, Slavoljub, Milašin, Jelena, Danilović, Vesna, Đurić, Marija P., Jokanović, Vukoman R., "Developing a novel resorptive hydroxyapatite-based bone substitute for over-critical size defect reconstruction: Physicochemical and biological characterization and proof of concept in segmental rabbit's ulna reconstruction" in Biomedizinische Technik, 65, no. 4 (2020):491-505,
https://doi.org/10.1515/bmt-2019-0218 . .
1

Toxicological Profile of Nanostructured Bone Substitute Based on Hydroxyapatite and Poly(lactide-co-glycolide) after Subchronic Oral Exposure of Rats

Paraš, Smiljana; Trišić, Dijana; Mitrović Ajtić, Olivera; Prokić, Bogomir; Drobne, Damjana; Živković, Slavoljub; Jokanović, Vukoman R.

(2020)

TY  - JOUR
AU  - Paraš, Smiljana
AU  - Trišić, Dijana
AU  - Mitrović Ajtić, Olivera
AU  - Prokić, Bogomir
AU  - Drobne, Damjana
AU  - Živković, Slavoljub
AU  - Jokanović, Vukoman R.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9008
AB  - Novel three-dimensional (3D) nanohydroxyapatite-PLGA scaffolds with high porosity was developed to better mimic mineral component and microstructure of natural bone. To perform a final assessment of this nanomaterial as a potential bone substitute, its toxicological profile was particularly investigated. Therefore, we performed a comet assay on human monocytes for in vitro genotoxicity investigation, and the systemic subchronic toxicity investigation on rats being per oral feed with exactly administrated extract quantities of the nano calcium hydroxyapatite covered with tiny layers of PLGA (ALBO-OS) for 120 days. Histological and stereological parameters of the liver, kidney, and spleen tissue were analyzed. Comet assay revealed low genotoxic potential, while histological analysis and stereological investigation revealed no significant changes in exposed animals when compared to controls, although the volume density of blood sinusoids and connective tissue, as well as numerical density and number of mitosis were slightly increased. Additionally, despite the significantly increased average number of the Ki67 and slightly increased number of CD68 positive cells in the presence of ALBO-OS, immunoreactive cells proliferation was almost neglected. Blood analyses showed that all of the blood parameters in rats fed with extract nanomaterial are comparable with corresponding parameters of no feed rats, taken as blind probe. This study contributes to the toxicological profiling of ALBO-OS scaffold for potential future application in bone tissue engineering.
T2  - Nanomaterials
T1  - Toxicological Profile of Nanostructured Bone Substitute Based on Hydroxyapatite and Poly(lactide-co-glycolide) after Subchronic Oral Exposure of Rats
VL  - 10
IS  - 5
SP  - 918
DO  - 10.3390/nano10050918
ER  - 
@article{
author = "Paraš, Smiljana and Trišić, Dijana and Mitrović Ajtić, Olivera and Prokić, Bogomir and Drobne, Damjana and Živković, Slavoljub and Jokanović, Vukoman R.",
year = "2020",
abstract = "Novel three-dimensional (3D) nanohydroxyapatite-PLGA scaffolds with high porosity was developed to better mimic mineral component and microstructure of natural bone. To perform a final assessment of this nanomaterial as a potential bone substitute, its toxicological profile was particularly investigated. Therefore, we performed a comet assay on human monocytes for in vitro genotoxicity investigation, and the systemic subchronic toxicity investigation on rats being per oral feed with exactly administrated extract quantities of the nano calcium hydroxyapatite covered with tiny layers of PLGA (ALBO-OS) for 120 days. Histological and stereological parameters of the liver, kidney, and spleen tissue were analyzed. Comet assay revealed low genotoxic potential, while histological analysis and stereological investigation revealed no significant changes in exposed animals when compared to controls, although the volume density of blood sinusoids and connective tissue, as well as numerical density and number of mitosis were slightly increased. Additionally, despite the significantly increased average number of the Ki67 and slightly increased number of CD68 positive cells in the presence of ALBO-OS, immunoreactive cells proliferation was almost neglected. Blood analyses showed that all of the blood parameters in rats fed with extract nanomaterial are comparable with corresponding parameters of no feed rats, taken as blind probe. This study contributes to the toxicological profiling of ALBO-OS scaffold for potential future application in bone tissue engineering.",
journal = "Nanomaterials",
title = "Toxicological Profile of Nanostructured Bone Substitute Based on Hydroxyapatite and Poly(lactide-co-glycolide) after Subchronic Oral Exposure of Rats",
volume = "10",
number = "5",
pages = "918",
doi = "10.3390/nano10050918"
}
Paraš, S., Trišić, D., Mitrović Ajtić, O., Prokić, B., Drobne, D., Živković, S.,& Jokanović, V. R.. (2020). Toxicological Profile of Nanostructured Bone Substitute Based on Hydroxyapatite and Poly(lactide-co-glycolide) after Subchronic Oral Exposure of Rats. in Nanomaterials, 10(5), 918.
https://doi.org/10.3390/nano10050918
Paraš S, Trišić D, Mitrović Ajtić O, Prokić B, Drobne D, Živković S, Jokanović VR. Toxicological Profile of Nanostructured Bone Substitute Based on Hydroxyapatite and Poly(lactide-co-glycolide) after Subchronic Oral Exposure of Rats. in Nanomaterials. 2020;10(5):918.
doi:10.3390/nano10050918 .
Paraš, Smiljana, Trišić, Dijana, Mitrović Ajtić, Olivera, Prokić, Bogomir, Drobne, Damjana, Živković, Slavoljub, Jokanović, Vukoman R., "Toxicological Profile of Nanostructured Bone Substitute Based on Hydroxyapatite and Poly(lactide-co-glycolide) after Subchronic Oral Exposure of Rats" in Nanomaterials, 10, no. 5 (2020):918,
https://doi.org/10.3390/nano10050918 . .
2
2
2

The resistance of poly-(l-lactide) to gamma radiation: effect of initial preparation and crystallinity

Miličević, Dejan S.; Suljovrujić, Edin H.

(2020)

TY  - JOUR
AU  - Miličević, Dejan S.
AU  - Suljovrujić, Edin H.
PY  - 2020
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8562
AB  - In order to investigate the resistance of poly-(l-lactide) (PLLA) to high-energy radiation, two varieties of samples with substantial differences in microstructure and crystallinity are prepared and exposed to the gamma radiation to various absorbed doses (up to 300 kGy). Since the PLLA morphology is sensitive to preparation conditions and radiation, surface microstructures are analyzed by scanning electronic microscopy. The chain scission degradation is followed using a gel permeation chromatography, while the additional characterization is conducted by differential scanning calorimetry, wide-angle X-ray diffraction method and IR spectroscopy. Presented results show that the quenched samples are more susceptible to radiation than initially high crystalline ones. Furthermore, the radiation leads to two considerably dissimilar recrystallization dynamics, connected with initial structural differences and the presence/absence of taut-tie chains. Radiation-induced increase in the crystallinity (more than 25% of initial value) for the quenched samples is noticeable at low radiation doses. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Polymer Bulletin
T1  - The resistance of poly-(l-lactide) to gamma radiation: effect of initial preparation and crystallinity
VL  - 77
IS  - 5
SP  - 2659
EP  - 2677
DO  - 10.1007/s00289-019-02880-2
ER  - 
@article{
author = "Miličević, Dejan S. and Suljovrujić, Edin H.",
year = "2020",
abstract = "In order to investigate the resistance of poly-(l-lactide) (PLLA) to high-energy radiation, two varieties of samples with substantial differences in microstructure and crystallinity are prepared and exposed to the gamma radiation to various absorbed doses (up to 300 kGy). Since the PLLA morphology is sensitive to preparation conditions and radiation, surface microstructures are analyzed by scanning electronic microscopy. The chain scission degradation is followed using a gel permeation chromatography, while the additional characterization is conducted by differential scanning calorimetry, wide-angle X-ray diffraction method and IR spectroscopy. Presented results show that the quenched samples are more susceptible to radiation than initially high crystalline ones. Furthermore, the radiation leads to two considerably dissimilar recrystallization dynamics, connected with initial structural differences and the presence/absence of taut-tie chains. Radiation-induced increase in the crystallinity (more than 25% of initial value) for the quenched samples is noticeable at low radiation doses. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Polymer Bulletin",
title = "The resistance of poly-(l-lactide) to gamma radiation: effect of initial preparation and crystallinity",
volume = "77",
number = "5",
pages = "2659-2677",
doi = "10.1007/s00289-019-02880-2"
}
Miličević, D. S.,& Suljovrujić, E. H.. (2020). The resistance of poly-(l-lactide) to gamma radiation: effect of initial preparation and crystallinity. in Polymer Bulletin, 77(5), 2659-2677.
https://doi.org/10.1007/s00289-019-02880-2
Miličević DS, Suljovrujić EH. The resistance of poly-(l-lactide) to gamma radiation: effect of initial preparation and crystallinity. in Polymer Bulletin. 2020;77(5):2659-2677.
doi:10.1007/s00289-019-02880-2 .
Miličević, Dejan S., Suljovrujić, Edin H., "The resistance of poly-(l-lactide) to gamma radiation: effect of initial preparation and crystallinity" in Polymer Bulletin, 77, no. 5 (2020):2659-2677,
https://doi.org/10.1007/s00289-019-02880-2 . .

The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT

Suljovrujić, Edin H.; Rogić Miladinović, Zorana; Mićić, Maja M.; Suljovrujić, Denis; Miličević, Dejan S.

(2019)

TY  - JOUR
AU  - Suljovrujić, Edin H.
AU  - Rogić Miladinović, Zorana
AU  - Mićić, Maja M.
AU  - Suljovrujić, Denis
AU  - Miličević, Dejan S.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8051
AB  - The oligo(ethylene glycol) dimethacrylate (OEGDMA), one of the most commonly utilized crosslinking monomers, was used to tailor thermoresponsive POEGDMA hydrogels by varying the monomer/solvent feed ratio (from 10 to 100 wt% of monomer). For the first time, synthesis of different POEGDMA homopolymeric networks was performed by gamma radiation, and due to the expected thermoresponsiveness their temperature-dependent properties were extensively analysed. The sol-gel study was performed as the first step after radiation-induced synthesis. The swelling properties were investigated over the wide pH (2.2–9.0) and temperature (5–80 °C) range. Characterization of structure and properties was additionally conducted by SEM, DSC, FTIR, and UV–Vis spectroscopy. The results indicated that all POEGDMA hydrogels showed a high gel content, inverse thermoresponse and volume phase transition temperature (VPTT) with no respect to initial preparation. On the other hand, by altering the monomer/solvent ratio in the prepolymerisation mixture a large diversity in the microstructure, swelling capacity and VPTT was obtained. © 2019 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT
VL  - 158
SP  - 37
EP  - 45
DO  - 10.1016/j.radphyschem.2018.12.034
ER  - 
@article{
author = "Suljovrujić, Edin H. and Rogić Miladinović, Zorana and Mićić, Maja M. and Suljovrujić, Denis and Miličević, Dejan S.",
year = "2019",
abstract = "The oligo(ethylene glycol) dimethacrylate (OEGDMA), one of the most commonly utilized crosslinking monomers, was used to tailor thermoresponsive POEGDMA hydrogels by varying the monomer/solvent feed ratio (from 10 to 100 wt% of monomer). For the first time, synthesis of different POEGDMA homopolymeric networks was performed by gamma radiation, and due to the expected thermoresponsiveness their temperature-dependent properties were extensively analysed. The sol-gel study was performed as the first step after radiation-induced synthesis. The swelling properties were investigated over the wide pH (2.2–9.0) and temperature (5–80 °C) range. Characterization of structure and properties was additionally conducted by SEM, DSC, FTIR, and UV–Vis spectroscopy. The results indicated that all POEGDMA hydrogels showed a high gel content, inverse thermoresponse and volume phase transition temperature (VPTT) with no respect to initial preparation. On the other hand, by altering the monomer/solvent ratio in the prepolymerisation mixture a large diversity in the microstructure, swelling capacity and VPTT was obtained. © 2019 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT",
volume = "158",
pages = "37-45",
doi = "10.1016/j.radphyschem.2018.12.034"
}
Suljovrujić, E. H., Rogić Miladinović, Z., Mićić, M. M., Suljovrujić, D.,& Miličević, D. S.. (2019). The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT. in Radiation Physics and Chemistry, 158, 37-45.
https://doi.org/10.1016/j.radphyschem.2018.12.034
Suljovrujić EH, Rogić Miladinović Z, Mićić MM, Suljovrujić D, Miličević DS. The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT. in Radiation Physics and Chemistry. 2019;158:37-45.
doi:10.1016/j.radphyschem.2018.12.034 .
Suljovrujić, Edin H., Rogić Miladinović, Zorana, Mićić, Maja M., Suljovrujić, Denis, Miličević, Dejan S., "The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT" in Radiation Physics and Chemistry, 158 (2019):37-45,
https://doi.org/10.1016/j.radphyschem.2018.12.034 . .
8
8
8

The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT

Suljovrujić, Edin H.; Rogić Miladinović, Zorana; Mićić, Maja M.; Suljovrujić, Denis; Miličević, Dejan S.

(2019)

TY  - JOUR
AU  - Suljovrujić, Edin H.
AU  - Rogić Miladinović, Zorana
AU  - Mićić, Maja M.
AU  - Suljovrujić, Denis
AU  - Miličević, Dejan S.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8048
AB  - The oligo(ethylene glycol) dimethacrylate (OEGDMA), one of the most commonly utilized crosslinking monomers, was used to tailor thermoresponsive POEGDMA hydrogels by varying the monomer/solvent feed ratio (from 10 to 100 wt% of monomer). For the first time, synthesis of different POEGDMA homopolymeric networks was performed by gamma radiation, and due to the expected thermoresponsiveness their temperature-dependent properties were extensively analysed. The sol-gel study was performed as the first step after radiation-induced synthesis. The swelling properties were investigated over the wide pH (2.2–9.0) and temperature (5–80 °C) range. Characterization of structure and properties was additionally conducted by SEM, DSC, FTIR, and UV–Vis spectroscopy. The results indicated that all POEGDMA hydrogels showed a high gel content, inverse thermoresponse and volume phase transition temperature (VPTT) with no respect to initial preparation. On the other hand, by altering the monomer/solvent ratio in the prepolymerisation mixture a large diversity in the microstructure, swelling capacity and VPTT was obtained. © 2019 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT
VL  - 158
SP  - 37
EP  - 45
DO  - 10.1016/j.radphyschem.2018.12.034
ER  - 
@article{
author = "Suljovrujić, Edin H. and Rogić Miladinović, Zorana and Mićić, Maja M. and Suljovrujić, Denis and Miličević, Dejan S.",
year = "2019",
abstract = "The oligo(ethylene glycol) dimethacrylate (OEGDMA), one of the most commonly utilized crosslinking monomers, was used to tailor thermoresponsive POEGDMA hydrogels by varying the monomer/solvent feed ratio (from 10 to 100 wt% of monomer). For the first time, synthesis of different POEGDMA homopolymeric networks was performed by gamma radiation, and due to the expected thermoresponsiveness their temperature-dependent properties were extensively analysed. The sol-gel study was performed as the first step after radiation-induced synthesis. The swelling properties were investigated over the wide pH (2.2–9.0) and temperature (5–80 °C) range. Characterization of structure and properties was additionally conducted by SEM, DSC, FTIR, and UV–Vis spectroscopy. The results indicated that all POEGDMA hydrogels showed a high gel content, inverse thermoresponse and volume phase transition temperature (VPTT) with no respect to initial preparation. On the other hand, by altering the monomer/solvent ratio in the prepolymerisation mixture a large diversity in the microstructure, swelling capacity and VPTT was obtained. © 2019 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT",
volume = "158",
pages = "37-45",
doi = "10.1016/j.radphyschem.2018.12.034"
}
Suljovrujić, E. H., Rogić Miladinović, Z., Mićić, M. M., Suljovrujić, D.,& Miličević, D. S.. (2019). The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT. in Radiation Physics and Chemistry, 158, 37-45.
https://doi.org/10.1016/j.radphyschem.2018.12.034
Suljovrujić EH, Rogić Miladinović Z, Mićić MM, Suljovrujić D, Miličević DS. The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT. in Radiation Physics and Chemistry. 2019;158:37-45.
doi:10.1016/j.radphyschem.2018.12.034 .
Suljovrujić, Edin H., Rogić Miladinović, Zorana, Mićić, Maja M., Suljovrujić, Denis, Miličević, Dejan S., "The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT" in Radiation Physics and Chemistry, 158 (2019):37-45,
https://doi.org/10.1016/j.radphyschem.2018.12.034 . .
8
8
8

Wetting properties of titanium oxides, oxynitrides and nitrides obtained by DC and pulsed magnetron sputtering and cathodic arc evaporation

Čolović, Božana M.; Kisić, Danilo; Jokanović, Bojan; Rakočević, Zlatko Lj.; Nasov, Ilija; Trajkovska Petkoska, Anka; Jokanović, Vukoman R.

(2019)

TY  - JOUR
AU  - Čolović, Božana M.
AU  - Kisić, Danilo
AU  - Jokanović, Bojan
AU  - Rakočević, Zlatko Lj.
AU  - Nasov, Ilija
AU  - Trajkovska Petkoska, Anka
AU  - Jokanović, Vukoman R.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8350
AB  - Thin films of titanium oxides, titanium oxynitrides and titanium nitrides were deposited on glass substrates by the methods of direct current (DC) and pulsed magnetron sputtering and cathodic arc evaporation. Phase analysis of the deposited films by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR) showed the presence of phases with various Ti oxidative states, which indicated a high concentration of oxygen vacancies. The films morphology was investigated by scanning electron microscopy (SEM). Investigations of the films wettability, either with water or ethylene glycol, showed that it depends directly on the concentration of oxygen vacancies. The wettability mechanism was particularly discussed.
T2  - Materials Science-Poland
T1  - Wetting properties of titanium oxides, oxynitrides and nitrides obtained by DC and pulsed magnetron sputtering and cathodic arc evaporation
VL  - 37
IS  - 2
SP  - 173
EP  - 181
DO  - 10.2478/msp-2019-0031
ER  - 
@article{
author = "Čolović, Božana M. and Kisić, Danilo and Jokanović, Bojan and Rakočević, Zlatko Lj. and Nasov, Ilija and Trajkovska Petkoska, Anka and Jokanović, Vukoman R.",
year = "2019",
abstract = "Thin films of titanium oxides, titanium oxynitrides and titanium nitrides were deposited on glass substrates by the methods of direct current (DC) and pulsed magnetron sputtering and cathodic arc evaporation. Phase analysis of the deposited films by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR) showed the presence of phases with various Ti oxidative states, which indicated a high concentration of oxygen vacancies. The films morphology was investigated by scanning electron microscopy (SEM). Investigations of the films wettability, either with water or ethylene glycol, showed that it depends directly on the concentration of oxygen vacancies. The wettability mechanism was particularly discussed.",
journal = "Materials Science-Poland",
title = "Wetting properties of titanium oxides, oxynitrides and nitrides obtained by DC and pulsed magnetron sputtering and cathodic arc evaporation",
volume = "37",
number = "2",
pages = "173-181",
doi = "10.2478/msp-2019-0031"
}
Čolović, B. M., Kisić, D., Jokanović, B., Rakočević, Z. Lj., Nasov, I., Trajkovska Petkoska, A.,& Jokanović, V. R.. (2019). Wetting properties of titanium oxides, oxynitrides and nitrides obtained by DC and pulsed magnetron sputtering and cathodic arc evaporation. in Materials Science-Poland, 37(2), 173-181.
https://doi.org/10.2478/msp-2019-0031
Čolović BM, Kisić D, Jokanović B, Rakočević ZL, Nasov I, Trajkovska Petkoska A, Jokanović VR. Wetting properties of titanium oxides, oxynitrides and nitrides obtained by DC and pulsed magnetron sputtering and cathodic arc evaporation. in Materials Science-Poland. 2019;37(2):173-181.
doi:10.2478/msp-2019-0031 .
Čolović, Božana M., Kisić, Danilo, Jokanović, Bojan, Rakočević, Zlatko Lj., Nasov, Ilija, Trajkovska Petkoska, Anka, Jokanović, Vukoman R., "Wetting properties of titanium oxides, oxynitrides and nitrides obtained by DC and pulsed magnetron sputtering and cathodic arc evaporation" in Materials Science-Poland, 37, no. 2 (2019):173-181,
https://doi.org/10.2478/msp-2019-0031 . .
6
5
5

Endodontic treatment of traumatized teeth with chronic periapical lesions using antibiotic paste and mineral trioxide aggregate obturation - a preliminary study

Ćetenović, Bojana; Marković, Dejan Lj.; Gutmann, James; Perić, Tamara; Jokanović, Vukoman R.

(2019)

TY  - JOUR
AU  - Ćetenović, Bojana
AU  - Marković, Dejan Lj.
AU  - Gutmann, James
AU  - Perić, Tamara
AU  - Jokanović, Vukoman R.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8455
AB  - Introduction/Objective The purpose of this study was to assess effectiveness of endodontic root canal procedures in traumatized permanent teeth with necrotic pulps and chronic periapical lesions after definitive obturation with mineral trioxide aggregate (MTA) products. Adobe Photoshop CS (San Jose, CA, USA) image-analysis software was used for healing assessment. Methods Twenty-seven traumatized single-rooted permanent teeth diagnosed with necrotic pulps and chronic periapical lesions were treated with non-surgical procedure using a tri-antibiotic paste and calcium hydroxide as intra-canal medication. Definitive obturation was performed with ProRoot MTA (Dentsply Tulsa Dental Specialties, Tulsa, OK, USA) or MTA+ Cerkamed (Cerkamed, Stalowa Wola, Poland). Control follow-ups were done three, six, 12, and 24 months following the completion of treatment. Results The positive clinical outcome was recorded in 24 (88.9%) cases, while radiographic success was present in 26 (96.3%) cases. A statistically significant decrease in the sizes of periapical lesions was consistently observed at follow-up periods (p < 0.001). There was no statistically significant difference between the two tested MTA materials (p > 0.05). Conclusion The MTA products were effective for the root canal obturation and appeared to contribute to the significant reduction or complete regression of periapical lesions in teeth treated. The presented procedure may be proposed for everyday clinical practice. © 2019, Serbia Medical Society. All rights reserved.
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Endodontic treatment of traumatized teeth with chronic periapical lesions using antibiotic paste and mineral trioxide aggregate obturation - a preliminary study
VL  - 147
IS  - 5-6
SP  - 270
EP  - 275
DO  - 10.2298/SARH180301018C
ER  - 
@article{
author = "Ćetenović, Bojana and Marković, Dejan Lj. and Gutmann, James and Perić, Tamara and Jokanović, Vukoman R.",
year = "2019",
abstract = "Introduction/Objective The purpose of this study was to assess effectiveness of endodontic root canal procedures in traumatized permanent teeth with necrotic pulps and chronic periapical lesions after definitive obturation with mineral trioxide aggregate (MTA) products. Adobe Photoshop CS (San Jose, CA, USA) image-analysis software was used for healing assessment. Methods Twenty-seven traumatized single-rooted permanent teeth diagnosed with necrotic pulps and chronic periapical lesions were treated with non-surgical procedure using a tri-antibiotic paste and calcium hydroxide as intra-canal medication. Definitive obturation was performed with ProRoot MTA (Dentsply Tulsa Dental Specialties, Tulsa, OK, USA) or MTA+ Cerkamed (Cerkamed, Stalowa Wola, Poland). Control follow-ups were done three, six, 12, and 24 months following the completion of treatment. Results The positive clinical outcome was recorded in 24 (88.9%) cases, while radiographic success was present in 26 (96.3%) cases. A statistically significant decrease in the sizes of periapical lesions was consistently observed at follow-up periods (p < 0.001). There was no statistically significant difference between the two tested MTA materials (p > 0.05). Conclusion The MTA products were effective for the root canal obturation and appeared to contribute to the significant reduction or complete regression of periapical lesions in teeth treated. The presented procedure may be proposed for everyday clinical practice. © 2019, Serbia Medical Society. All rights reserved.",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Endodontic treatment of traumatized teeth with chronic periapical lesions using antibiotic paste and mineral trioxide aggregate obturation - a preliminary study",
volume = "147",
number = "5-6",
pages = "270-275",
doi = "10.2298/SARH180301018C"
}
Ćetenović, B., Marković, D. Lj., Gutmann, J., Perić, T.,& Jokanović, V. R.. (2019). Endodontic treatment of traumatized teeth with chronic periapical lesions using antibiotic paste and mineral trioxide aggregate obturation - a preliminary study. in Srpski arhiv za celokupno lekarstvo, 147(5-6), 270-275.
https://doi.org/10.2298/SARH180301018C
Ćetenović B, Marković DL, Gutmann J, Perić T, Jokanović VR. Endodontic treatment of traumatized teeth with chronic periapical lesions using antibiotic paste and mineral trioxide aggregate obturation - a preliminary study. in Srpski arhiv za celokupno lekarstvo. 2019;147(5-6):270-275.
doi:10.2298/SARH180301018C .
Ćetenović, Bojana, Marković, Dejan Lj., Gutmann, James, Perić, Tamara, Jokanović, Vukoman R., "Endodontic treatment of traumatized teeth with chronic periapical lesions using antibiotic paste and mineral trioxide aggregate obturation - a preliminary study" in Srpski arhiv za celokupno lekarstvo, 147, no. 5-6 (2019):270-275,
https://doi.org/10.2298/SARH180301018C . .
2
2
1

Antibacterial effects of new endodontic materials based on calcium silicates

Trišić, Dijana; Ćetenović, Bojana; Zdravković, Nemanja; Marković, Tatjana; Dojčinović, Biljana P.; Jokanović, Vukoman R.; Marković, Dejan Lj.

(2019)

TY  - JOUR
AU  - Trišić, Dijana
AU  - Ćetenović, Bojana
AU  - Zdravković, Nemanja
AU  - Marković, Tatjana
AU  - Dojčinović, Biljana P.
AU  - Jokanović, Vukoman R.
AU  - Marković, Dejan Lj.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8426
AB  - Background/Aim. The main task of endodontic treatment is to eliminate pathologically altered tissue, to disinfect root canal space and to obtain its three-dimensional hermetic obturation. The main purpose of this study was to evaluate antimicrobial activity of new endodontic nano-structured highly active calcium silicates based materials albo-mineral plyoxide carbonate aggregate (ALBO-MPCA) and calcium silicates (CS) in comparison to mineral trioxide aggregate (MTA+) and UltraCal XS (CH). Methods. The antimicrobial activity of materials was tested against Staphylococcus aureus (ATCC 25923) and Enterococcus faecalis (ATCC 14506) strains, and following clinical isolates: Rothia dentocariosa, Enterococcus faecalis, Staphylococcus aureus, Streptococcus anginosus and Streptococcus vestibularis using a double layer agar diffusion test. The pH measurements were performed using the pH meter. Total amount of released ions was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). Results. All tested materials showed the best antibacterial potential after 1 h of incubation. After 3h and 24h of the incubation period, the antibacterial potential of all tested materials were similar. The Agar diffusion test showed that ALBO-MPCA, CS and MTA+ had similar inhibition zones (p > 0.05), except in the activity against Staphylococcus aureus where ALBO-MPCA showed better antimicrobial properties than MTA+ in 3h and 24h of the incubation period (p < 0.05). Following 24h of the incubation, the inhibition zones were the strongest with CH against Staphylococcus aureus (16.67 ± 2.34 mm) followed by ALBO-MPCA (14.67 ± 1.21 mm) and the weakest with CS against Enterococcus faecalis (6.50 ± 1.76 mm). CH showed the highest pH, followed by ALBO-MPCA, CS and MTA+. Conclusion. The expressed antibacterial effects indicate that materials based on nano-structured highly active calcium silicates represent effective therapeutic agents for root canal obturation in one-visit apexification treatment, therefore they are recommend for further examination and clinical trials as they are proposed for MTA substitution. © 2019, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.
T2  - Vojnosanitetski pregled
T1  - Antibacterial effects of new endodontic materials based on calcium silicates
VL  - 76
IS  - 4
SP  - 365
EP  - 372
DO  - 10.2298/VSP161231130T
ER  - 
@article{
author = "Trišić, Dijana and Ćetenović, Bojana and Zdravković, Nemanja and Marković, Tatjana and Dojčinović, Biljana P. and Jokanović, Vukoman R. and Marković, Dejan Lj.",
year = "2019",
abstract = "Background/Aim. The main task of endodontic treatment is to eliminate pathologically altered tissue, to disinfect root canal space and to obtain its three-dimensional hermetic obturation. The main purpose of this study was to evaluate antimicrobial activity of new endodontic nano-structured highly active calcium silicates based materials albo-mineral plyoxide carbonate aggregate (ALBO-MPCA) and calcium silicates (CS) in comparison to mineral trioxide aggregate (MTA+) and UltraCal XS (CH). Methods. The antimicrobial activity of materials was tested against Staphylococcus aureus (ATCC 25923) and Enterococcus faecalis (ATCC 14506) strains, and following clinical isolates: Rothia dentocariosa, Enterococcus faecalis, Staphylococcus aureus, Streptococcus anginosus and Streptococcus vestibularis using a double layer agar diffusion test. The pH measurements were performed using the pH meter. Total amount of released ions was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). Results. All tested materials showed the best antibacterial potential after 1 h of incubation. After 3h and 24h of the incubation period, the antibacterial potential of all tested materials were similar. The Agar diffusion test showed that ALBO-MPCA, CS and MTA+ had similar inhibition zones (p > 0.05), except in the activity against Staphylococcus aureus where ALBO-MPCA showed better antimicrobial properties than MTA+ in 3h and 24h of the incubation period (p < 0.05). Following 24h of the incubation, the inhibition zones were the strongest with CH against Staphylococcus aureus (16.67 ± 2.34 mm) followed by ALBO-MPCA (14.67 ± 1.21 mm) and the weakest with CS against Enterococcus faecalis (6.50 ± 1.76 mm). CH showed the highest pH, followed by ALBO-MPCA, CS and MTA+. Conclusion. The expressed antibacterial effects indicate that materials based on nano-structured highly active calcium silicates represent effective therapeutic agents for root canal obturation in one-visit apexification treatment, therefore they are recommend for further examination and clinical trials as they are proposed for MTA substitution. © 2019, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.",
journal = "Vojnosanitetski pregled",
title = "Antibacterial effects of new endodontic materials based on calcium silicates",
volume = "76",
number = "4",
pages = "365-372",
doi = "10.2298/VSP161231130T"
}
Trišić, D., Ćetenović, B., Zdravković, N., Marković, T., Dojčinović, B. P., Jokanović, V. R.,& Marković, D. Lj.. (2019). Antibacterial effects of new endodontic materials based on calcium silicates. in Vojnosanitetski pregled, 76(4), 365-372.
https://doi.org/10.2298/VSP161231130T
Trišić D, Ćetenović B, Zdravković N, Marković T, Dojčinović BP, Jokanović VR, Marković DL. Antibacterial effects of new endodontic materials based on calcium silicates. in Vojnosanitetski pregled. 2019;76(4):365-372.
doi:10.2298/VSP161231130T .
Trišić, Dijana, Ćetenović, Bojana, Zdravković, Nemanja, Marković, Tatjana, Dojčinović, Biljana P., Jokanović, Vukoman R., Marković, Dejan Lj., "Antibacterial effects of new endodontic materials based on calcium silicates" in Vojnosanitetski pregled, 76, no. 4 (2019):365-372,
https://doi.org/10.2298/VSP161231130T . .
1

Physico-chemical and biological properties of dental calcium silicate cements - literature review

Ilić, Dragan V.; Antonijević, Đorđe; Biočanin, Vladimir; Čolović, Božana M.; Danilović, Vesna; Komlev, Vladimir; Teterina, Anastasia; Jokanović, Vukoman R.

(2019)

TY  - JOUR
AU  - Ilić, Dragan V.
AU  - Antonijević, Đorđe
AU  - Biočanin, Vladimir
AU  - Čolović, Božana M.
AU  - Danilović, Vesna
AU  - Komlev, Vladimir
AU  - Teterina, Anastasia
AU  - Jokanović, Vukoman R.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8661
AB  - Dental cement materials have been developed with the aim to replace hard dental tissues. The first material used for pulp capping, root canal obturation, bifurcation perforation and apexification is calcium hydroxide (in 1920). A half century later, glass-ionomer cements began to suppress it as dentine substitutes. Finally, in the 1990s, calcium silicate (CS) material appeared in the dental research community as the most promising dentine substitute capable to adequately meet all clinical requirements. The aim of this paper is to present an overview of literature related to studies about CS materials taking into account their physical, chemical and biological properties and clinical applications. This review aims to discuss beneficial and adverse characteristics of CSs concerning interactions to the hard dentine and soft pulp/periodontal tissues. This review article deals with the literature data about currently commercially available CS concerning laboratory and clinical findings. 109 scientific articles were analyzed of which 62 references reported in vitro and 26 in vivo investigations while 21 references comprised reports, reviews and books dealing with both, in vitro and in vivo investigations. Although further data collection is necessary, CSs are promising materials that represent a gold standard for numerous dental clinical procedures. © 2019, Association of Chemists and Chemical Engineers of Serbia. All rights reserved.
T2  - Hemijska industrija
T1  - Physico-chemical and biological properties of dental calcium silicate cements - literature review
VL  - 73
IS  - 5
SP  - 281
EP  - 294
DO  - 10.2298/HEMIND190614027I
ER  - 
@article{
author = "Ilić, Dragan V. and Antonijević, Đorđe and Biočanin, Vladimir and Čolović, Božana M. and Danilović, Vesna and Komlev, Vladimir and Teterina, Anastasia and Jokanović, Vukoman R.",
year = "2019",
abstract = "Dental cement materials have been developed with the aim to replace hard dental tissues. The first material used for pulp capping, root canal obturation, bifurcation perforation and apexification is calcium hydroxide (in 1920). A half century later, glass-ionomer cements began to suppress it as dentine substitutes. Finally, in the 1990s, calcium silicate (CS) material appeared in the dental research community as the most promising dentine substitute capable to adequately meet all clinical requirements. The aim of this paper is to present an overview of literature related to studies about CS materials taking into account their physical, chemical and biological properties and clinical applications. This review aims to discuss beneficial and adverse characteristics of CSs concerning interactions to the hard dentine and soft pulp/periodontal tissues. This review article deals with the literature data about currently commercially available CS concerning laboratory and clinical findings. 109 scientific articles were analyzed of which 62 references reported in vitro and 26 in vivo investigations while 21 references comprised reports, reviews and books dealing with both, in vitro and in vivo investigations. Although further data collection is necessary, CSs are promising materials that represent a gold standard for numerous dental clinical procedures. © 2019, Association of Chemists and Chemical Engineers of Serbia. All rights reserved.",
journal = "Hemijska industrija",
title = "Physico-chemical and biological properties of dental calcium silicate cements - literature review",
volume = "73",
number = "5",
pages = "281-294",
doi = "10.2298/HEMIND190614027I"
}
Ilić, D. V., Antonijević, Đ., Biočanin, V., Čolović, B. M., Danilović, V., Komlev, V., Teterina, A.,& Jokanović, V. R.. (2019). Physico-chemical and biological properties of dental calcium silicate cements - literature review. in Hemijska industrija, 73(5), 281-294.
https://doi.org/10.2298/HEMIND190614027I
Ilić DV, Antonijević Đ, Biočanin V, Čolović BM, Danilović V, Komlev V, Teterina A, Jokanović VR. Physico-chemical and biological properties of dental calcium silicate cements - literature review. in Hemijska industrija. 2019;73(5):281-294.
doi:10.2298/HEMIND190614027I .
Ilić, Dragan V., Antonijević, Đorđe, Biočanin, Vladimir, Čolović, Božana M., Danilović, Vesna, Komlev, Vladimir, Teterina, Anastasia, Jokanović, Vukoman R., "Physico-chemical and biological properties of dental calcium silicate cements - literature review" in Hemijska industrija, 73, no. 5 (2019):281-294,
https://doi.org/10.2298/HEMIND190614027I . .

On the enthalpy of melting of poly(l-lactide)

Suljovrujić, Edin H.; Miličević, Dejan S.

(2019)

TY  - JOUR
AU  - Suljovrujić, Edin H.
AU  - Miličević, Dejan S.
PY  - 2019
UR  - https://www.tandfonline.com/doi/full/10.1080/1023666X.2019.1598635
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8134
AB  - Poly(l-lactide) (PLLA) is an extensively employed biodegradable semicrystalline polymer with usage from implantable medical devices and drug release matrices to environmentally friendly packaging materials. Since the morphology and crystallinity considerably determine the application field, PLLA samples with a large variation in crystallinity (going from below 20% to over 70%) were prepared by different procedures. Subsequent differences in morphology, crystallinity and thermal properties were followed by scanning electron microscopy (SEM), wide angle X-ray diffraction (WAXD) measurements and differential scanning calorimetry (DSC). The value of the enthalpy of melting of a perfectly (100%) crystalline PLLA was determined (ΔH f = 115.7 J/g). © 2019, © 2019 Taylor & Francis Group, LLC.
T2  - International Journal of Polymer Analysis and Characterization
T1  - On the enthalpy of melting of poly(l-lactide)
VL  - 24
IS  - 5
SP  - 381
EP  - 388
DO  - 10.1080/1023666X.2019.1598635
ER  - 
@article{
author = "Suljovrujić, Edin H. and Miličević, Dejan S.",
year = "2019",
abstract = "Poly(l-lactide) (PLLA) is an extensively employed biodegradable semicrystalline polymer with usage from implantable medical devices and drug release matrices to environmentally friendly packaging materials. Since the morphology and crystallinity considerably determine the application field, PLLA samples with a large variation in crystallinity (going from below 20% to over 70%) were prepared by different procedures. Subsequent differences in morphology, crystallinity and thermal properties were followed by scanning electron microscopy (SEM), wide angle X-ray diffraction (WAXD) measurements and differential scanning calorimetry (DSC). The value of the enthalpy of melting of a perfectly (100%) crystalline PLLA was determined (ΔH f = 115.7 J/g). © 2019, © 2019 Taylor & Francis Group, LLC.",
journal = "International Journal of Polymer Analysis and Characterization",
title = "On the enthalpy of melting of poly(l-lactide)",
volume = "24",
number = "5",
pages = "381-388",
doi = "10.1080/1023666X.2019.1598635"
}
Suljovrujić, E. H.,& Miličević, D. S.. (2019). On the enthalpy of melting of poly(l-lactide). in International Journal of Polymer Analysis and Characterization, 24(5), 381-388.
https://doi.org/10.1080/1023666X.2019.1598635
Suljovrujić EH, Miličević DS. On the enthalpy of melting of poly(l-lactide). in International Journal of Polymer Analysis and Characterization. 2019;24(5):381-388.
doi:10.1080/1023666X.2019.1598635 .
Suljovrujić, Edin H., Miličević, Dejan S., "On the enthalpy of melting of poly(l-lactide)" in International Journal of Polymer Analysis and Characterization, 24, no. 5 (2019):381-388,
https://doi.org/10.1080/1023666X.2019.1598635 . .
1
1
1

Cytotoxicity of a titanium alloy coated with hydroxyapatite by plasma jet deposition

Magić, Marko; Čolović, Božana M.; Jokanović, Vukoman R.; Vasilijić, Saša; Marković, Milan; Vučević, Dragana; Rudolf, Rebeka; Čolić, Snježana; Čolić, Miodrag

(2019)

TY  - JOUR
AU  - Magić, Marko
AU  - Čolović, Božana M.
AU  - Jokanović, Vukoman R.
AU  - Vasilijić, Saša
AU  - Marković, Milan
AU  - Vučević, Dragana
AU  - Rudolf, Rebeka
AU  - Čolić, Snježana
AU  - Čolić, Miodrag
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8425
AB  - Background/Aim. The deposition of hydroxyapatite (HAP) on the surface of titanium (Ti) alloys enhances bioactivity and osseointegration of the alloys which are widely used as implant materials in dentistry and orthopaedic surgery. However, the stability of HAP and subsequent biocompatibility of such alloys depends on the coating technique. The aim of this work was to test the cytotoxicity of a Ti alloy (Ti6Al4V), coated with HAP by a new plasma deposition method. Methods. The Ti6Al4V samples prepared as discs, 10 mm in diameter and 2 mm in thickness, were coated with HAP (one or both sides of the alloy) by an innovative atmospheric plasma jet method. The cytotoxicity of uncoated and HAP coated Ti6Al4V samples was evaluated by examining the morphological changes and viability of L929 fibroblasts in direct contact with the test materials. Adequate negative (polystyrene) and positive (nickel) control discs of the same size were used. The indirect cytotoxicity was determined by cultivating L929 cells with conditioning medium (CM), prepared as extract of the test samples incubated in the complete Roswell Park Memorial Institute (RPMI) 1640 medium for cell cultures. The cytotoxic effect was evaluated based on the degree of metabolic activity, necrosis, apoptosis and proliferation of L929 cells, using the appropriate assays. Results. Uncoated and one side HAP coated Ti6Al4V alloys were classified as non-cytotoxic according to the current ISO 10993-5 criteria, whereas two sides HAP coated Ti6Al4V alloy samples were slightlymoderate cytotoxic. The cytotoxicity manifested as the inhibition of metabolic activity and proliferation of L929 cells as well as the induction of their apoptosis and necrosis was significantly reduced by conditioning of HAP/Ti6Al4V alloys for 24 hours. The cytotoxic effect of HAP/Ti6Al4V CM only partly decreased in the presence of nifelate, a calcium (Ca) channel blocker, suggesting that Ca ions were not the only responsible cytotoxic agent. Conclusion. The original HAP coating procedure by atmospheric plasma spraying with high energy input enables the production of the stable adhesive coatings on Ti6Al4V alloys. Their cytotoxicity, which depends on the quantity of HAP coating layer, could be significantly reduced up to the non-cytotoxic level by prior conditioning of the alloys in culture medium. Such a procedure, which removes leachable toxic components, could be useful before implantation of HAP coated alloys in vivo. © 2019, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.
T2  - Vojnosanitetski pregled
T1  - Cytotoxicity of a titanium alloy coated with hydroxyapatite by plasma jet deposition
VL  - 76
IS  - 5
SP  - 492
EP  - 501
DO  - 10.2298/VSP170809097M
ER  - 
@article{
author = "Magić, Marko and Čolović, Božana M. and Jokanović, Vukoman R. and Vasilijić, Saša and Marković, Milan and Vučević, Dragana and Rudolf, Rebeka and Čolić, Snježana and Čolić, Miodrag",
year = "2019",
abstract = "Background/Aim. The deposition of hydroxyapatite (HAP) on the surface of titanium (Ti) alloys enhances bioactivity and osseointegration of the alloys which are widely used as implant materials in dentistry and orthopaedic surgery. However, the stability of HAP and subsequent biocompatibility of such alloys depends on the coating technique. The aim of this work was to test the cytotoxicity of a Ti alloy (Ti6Al4V), coated with HAP by a new plasma deposition method. Methods. The Ti6Al4V samples prepared as discs, 10 mm in diameter and 2 mm in thickness, were coated with HAP (one or both sides of the alloy) by an innovative atmospheric plasma jet method. The cytotoxicity of uncoated and HAP coated Ti6Al4V samples was evaluated by examining the morphological changes and viability of L929 fibroblasts in direct contact with the test materials. Adequate negative (polystyrene) and positive (nickel) control discs of the same size were used. The indirect cytotoxicity was determined by cultivating L929 cells with conditioning medium (CM), prepared as extract of the test samples incubated in the complete Roswell Park Memorial Institute (RPMI) 1640 medium for cell cultures. The cytotoxic effect was evaluated based on the degree of metabolic activity, necrosis, apoptosis and proliferation of L929 cells, using the appropriate assays. Results. Uncoated and one side HAP coated Ti6Al4V alloys were classified as non-cytotoxic according to the current ISO 10993-5 criteria, whereas two sides HAP coated Ti6Al4V alloy samples were slightlymoderate cytotoxic. The cytotoxicity manifested as the inhibition of metabolic activity and proliferation of L929 cells as well as the induction of their apoptosis and necrosis was significantly reduced by conditioning of HAP/Ti6Al4V alloys for 24 hours. The cytotoxic effect of HAP/Ti6Al4V CM only partly decreased in the presence of nifelate, a calcium (Ca) channel blocker, suggesting that Ca ions were not the only responsible cytotoxic agent. Conclusion. The original HAP coating procedure by atmospheric plasma spraying with high energy input enables the production of the stable adhesive coatings on Ti6Al4V alloys. Their cytotoxicity, which depends on the quantity of HAP coating layer, could be significantly reduced up to the non-cytotoxic level by prior conditioning of the alloys in culture medium. Such a procedure, which removes leachable toxic components, could be useful before implantation of HAP coated alloys in vivo. © 2019, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.",
journal = "Vojnosanitetski pregled",
title = "Cytotoxicity of a titanium alloy coated with hydroxyapatite by plasma jet deposition",
volume = "76",
number = "5",
pages = "492-501",
doi = "10.2298/VSP170809097M"
}
Magić, M., Čolović, B. M., Jokanović, V. R., Vasilijić, S., Marković, M., Vučević, D., Rudolf, R., Čolić, S.,& Čolić, M.. (2019). Cytotoxicity of a titanium alloy coated with hydroxyapatite by plasma jet deposition. in Vojnosanitetski pregled, 76(5), 492-501.
https://doi.org/10.2298/VSP170809097M
Magić M, Čolović BM, Jokanović VR, Vasilijić S, Marković M, Vučević D, Rudolf R, Čolić S, Čolić M. Cytotoxicity of a titanium alloy coated with hydroxyapatite by plasma jet deposition. in Vojnosanitetski pregled. 2019;76(5):492-501.
doi:10.2298/VSP170809097M .
Magić, Marko, Čolović, Božana M., Jokanović, Vukoman R., Vasilijić, Saša, Marković, Milan, Vučević, Dragana, Rudolf, Rebeka, Čolić, Snježana, Čolić, Miodrag, "Cytotoxicity of a titanium alloy coated with hydroxyapatite by plasma jet deposition" in Vojnosanitetski pregled, 76, no. 5 (2019):492-501,
https://doi.org/10.2298/VSP170809097M . .

Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis

Paraš, Smiljana; Janković, Ognjenka; Trišić, Dijana; Čolović, Božana M.; Mitrović‐Ajtić, Olivera; Dekić, Radoslav; Soldatović, Ivan A.; Živković-Sandić, Marija; Živković, Slavoljub; Jokanović, Vukoman R.

(2019)

TY  - JOUR
AU  - Paraš, Smiljana
AU  - Janković, Ognjenka
AU  - Trišić, Dijana
AU  - Čolović, Božana M.
AU  - Mitrović‐Ajtić, Olivera
AU  - Dekić, Radoslav
AU  - Soldatović, Ivan A.
AU  - Živković-Sandić, Marija
AU  - Živković, Slavoljub
AU  - Jokanović, Vukoman R.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8557
AB  - Aim: To examine the potential systemic toxicity of nanostructured materials based on calcium silicate and calcium aluminate, for potential application in Dentistry. Methodology: Twenty-four Albino Wistar rats aged 2 months were used as an in vivo animal model for subcutaneous implantation of the investigated materials, placed in polyethylene tubes. Thirty days after implantation, the livers of the rats were analysed and following histological and stereological parameters were evaluated for volume density of hepatocytes and blood sinusoids, number and numerical density of hepatocytes, surface of hepatocytes and their nucleuses, nucleocytoplasmic ratio and mitotic index of hepatocytes. Stereological measurements were achieved using Cavalieri's principle, with grid P2 and unbiased analysis. Additionally, immunohistochemistry studies were performed to further analyse changes in liver tissue. Several haematological and biochemical parameters of blood of experimental animals were also analysed, as well as local tissue reactions around the implants. Statistical analysis was performed using parametric (anova and t-test) and nonparametric tests (Kruskal–Wallis and Mann–Whitney U-test) depending on data distribution. Results: Implanted dental cements led to an increase in stereological and histological parameters in liver tissue compared to control rats. Although the investigated parameters mostly showed significant differences between control and experimental animals, the liver tissue of the experimental animals did not have visible signs of pathological changes. This was supported by the analysis of blood parameters which were not significantly different between control and experimental animals. Also, the subcutaneous tissues had minimal inflammatory reactions. Immunohistochemistry studies revealed that nanostructured materials induced proliferation of hepatocytes, but that the immunological response to the materials was not strong enough to induce proliferation of immunoreactive cells in liver in the observed time period. Conclusions: This study was performed as a contribution to the attestation of the biocompatibility of dental cements based on calcium silicate and calcium aluminate. Although these materials induced several changes in the liver structure, they were not clinically relevant and represent a normal and reversible response of the liver to the presence of biocompatible materials in the body. Blood and immunohistochemistry analyses and local tissue reactions further confirmed that these materials possess good biocompatible potential. © 2019 International Endodontic Journal. Published by John Wiley & Sons Ltd
T2  - International Endodontic Journal
T1  - Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis
SP  - 1162
EP  - 1172
DO  - 10.1111/iej.13105
ER  - 
@article{
author = "Paraš, Smiljana and Janković, Ognjenka and Trišić, Dijana and Čolović, Božana M. and Mitrović‐Ajtić, Olivera and Dekić, Radoslav and Soldatović, Ivan A. and Živković-Sandić, Marija and Živković, Slavoljub and Jokanović, Vukoman R.",
year = "2019",
abstract = "Aim: To examine the potential systemic toxicity of nanostructured materials based on calcium silicate and calcium aluminate, for potential application in Dentistry. Methodology: Twenty-four Albino Wistar rats aged 2 months were used as an in vivo animal model for subcutaneous implantation of the investigated materials, placed in polyethylene tubes. Thirty days after implantation, the livers of the rats were analysed and following histological and stereological parameters were evaluated for volume density of hepatocytes and blood sinusoids, number and numerical density of hepatocytes, surface of hepatocytes and their nucleuses, nucleocytoplasmic ratio and mitotic index of hepatocytes. Stereological measurements were achieved using Cavalieri's principle, with grid P2 and unbiased analysis. Additionally, immunohistochemistry studies were performed to further analyse changes in liver tissue. Several haematological and biochemical parameters of blood of experimental animals were also analysed, as well as local tissue reactions around the implants. Statistical analysis was performed using parametric (anova and t-test) and nonparametric tests (Kruskal–Wallis and Mann–Whitney U-test) depending on data distribution. Results: Implanted dental cements led to an increase in stereological and histological parameters in liver tissue compared to control rats. Although the investigated parameters mostly showed significant differences between control and experimental animals, the liver tissue of the experimental animals did not have visible signs of pathological changes. This was supported by the analysis of blood parameters which were not significantly different between control and experimental animals. Also, the subcutaneous tissues had minimal inflammatory reactions. Immunohistochemistry studies revealed that nanostructured materials induced proliferation of hepatocytes, but that the immunological response to the materials was not strong enough to induce proliferation of immunoreactive cells in liver in the observed time period. Conclusions: This study was performed as a contribution to the attestation of the biocompatibility of dental cements based on calcium silicate and calcium aluminate. Although these materials induced several changes in the liver structure, they were not clinically relevant and represent a normal and reversible response of the liver to the presence of biocompatible materials in the body. Blood and immunohistochemistry analyses and local tissue reactions further confirmed that these materials possess good biocompatible potential. © 2019 International Endodontic Journal. Published by John Wiley & Sons Ltd",
journal = "International Endodontic Journal",
title = "Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis",
pages = "1162-1172",
doi = "10.1111/iej.13105"
}
Paraš, S., Janković, O., Trišić, D., Čolović, B. M., Mitrović‐Ajtić, O., Dekić, R., Soldatović, I. A., Živković-Sandić, M., Živković, S.,& Jokanović, V. R.. (2019). Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis. in International Endodontic Journal, 1162-1172.
https://doi.org/10.1111/iej.13105
Paraš S, Janković O, Trišić D, Čolović BM, Mitrović‐Ajtić O, Dekić R, Soldatović IA, Živković-Sandić M, Živković S, Jokanović VR. Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis. in International Endodontic Journal. 2019;:1162-1172.
doi:10.1111/iej.13105 .
Paraš, Smiljana, Janković, Ognjenka, Trišić, Dijana, Čolović, Božana M., Mitrović‐Ajtić, Olivera, Dekić, Radoslav, Soldatović, Ivan A., Živković-Sandić, Marija, Živković, Slavoljub, Jokanović, Vukoman R., "Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis" in International Endodontic Journal (2019):1162-1172,
https://doi.org/10.1111/iej.13105 . .
7
6
7

A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis

Čolović, Božana M.; Janković, Ognjenka; Živković, Slavoljub; Žižak, Željko; Besu Žižak, Irina; Jokanović, Vukoman R.

(2019)

TY  - JOUR
AU  - Čolović, Božana M.
AU  - Janković, Ognjenka
AU  - Živković, Slavoljub
AU  - Žižak, Željko
AU  - Besu Žižak, Irina
AU  - Jokanović, Vukoman R.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8488
AB  - The synthesis of a new endodontic mixture based on calcium aluminate cement is reported. Physico-chemical and mechanical properties of the mixture were investigated before and after various hydration periods. Phase analysis of the mixture was performed using X-ray diffraction (XRD), while morphological analysis was performed by scanning electron microscopy (SEM) equipped with EDS which revealed elemental composition of the mixture sample. Investigations of mechanical properties showed that this new endodontic mixture possessed good mechanical properties (compressive strength after 28 days aging was 94 MPa) and relatively short setting time (2 h). Additionally, cytotoxicity of the mixture was investigated by MTT assay, while genotoxicity was investigated by Comet assay, using MRC-5 cell line. The obtained results make this material very promising for potential application in dental practice. © 2019 Elsevier Ltd and Techna Group S.r.l.
T2  - Ceramics International
T1  - A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis
VL  - 45
IS  - 7
SP  - 9211
EP  - 9218
DO  - 10.1016/j.ceramint.2019.01.266
ER  - 
@article{
author = "Čolović, Božana M. and Janković, Ognjenka and Živković, Slavoljub and Žižak, Željko and Besu Žižak, Irina and Jokanović, Vukoman R.",
year = "2019",
abstract = "The synthesis of a new endodontic mixture based on calcium aluminate cement is reported. Physico-chemical and mechanical properties of the mixture were investigated before and after various hydration periods. Phase analysis of the mixture was performed using X-ray diffraction (XRD), while morphological analysis was performed by scanning electron microscopy (SEM) equipped with EDS which revealed elemental composition of the mixture sample. Investigations of mechanical properties showed that this new endodontic mixture possessed good mechanical properties (compressive strength after 28 days aging was 94 MPa) and relatively short setting time (2 h). Additionally, cytotoxicity of the mixture was investigated by MTT assay, while genotoxicity was investigated by Comet assay, using MRC-5 cell line. The obtained results make this material very promising for potential application in dental practice. © 2019 Elsevier Ltd and Techna Group S.r.l.",
journal = "Ceramics International",
title = "A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis",
volume = "45",
number = "7",
pages = "9211-9218",
doi = "10.1016/j.ceramint.2019.01.266"
}
Čolović, B. M., Janković, O., Živković, S., Žižak, Ž., Besu Žižak, I.,& Jokanović, V. R.. (2019). A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis. in Ceramics International, 45(7), 9211-9218.
https://doi.org/10.1016/j.ceramint.2019.01.266
Čolović BM, Janković O, Živković S, Žižak Ž, Besu Žižak I, Jokanović VR. A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis. in Ceramics International. 2019;45(7):9211-9218.
doi:10.1016/j.ceramint.2019.01.266 .
Čolović, Božana M., Janković, Ognjenka, Živković, Slavoljub, Žižak, Željko, Besu Žižak, Irina, Jokanović, Vukoman R., "A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis" in Ceramics International, 45, no. 7 (2019):9211-9218,
https://doi.org/10.1016/j.ceramint.2019.01.266 . .
2
1
2

TixOy thin films with extremely low extinction coefficients obtained by pulsed magnetron sputtering

Jokanović, Vukoman R.; Čolović, Božana M.; Bundaleski, Nenad; Jokanović, M.; Trajkovska Petkoska, Anka; Ferrara, Manuela; Nasov, Ilija; Rakočević, Zlatko Lj.

(2018)

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Čolović, Božana M.
AU  - Bundaleski, Nenad
AU  - Jokanović, M.
AU  - Trajkovska Petkoska, Anka
AU  - Ferrara, Manuela
AU  - Nasov, Ilija
AU  - Rakočević, Zlatko Lj.
PY  - 2018
UR  - https://joam.inoe.ro/index.php?option=magazine&op=view&idu=4206&catid=110
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7716
AB  - Optical properties of TixOy thin film, of thickness 125 nm, obtained by pulsed magnetron sputtering were investigated in this paper. XRD analysis revealed the presence of anatase, rutile, TiO, Ti2O3and Ti3O5phases. XPS analysis showed similar results. SEM analysis showed quite smooth surface of the film. Spectroscopic ellipsometry revealed sharp decrease of refractive index in wavelength range 300-500 nm and extremely low values of extinction coefficients which are less than 0.01 at wavelengths equal to or higher than 500 nm.
T2  - Journal of Optoelectronics and Advanced Materials
T1  - TixOy thin films with extremely low extinction coefficients obtained by pulsed magnetron sputtering
VL  - 20
IS  - 3-4
SP  - 169
EP  - 174
ER  - 
@article{
author = "Jokanović, Vukoman R. and Čolović, Božana M. and Bundaleski, Nenad and Jokanović, M. and Trajkovska Petkoska, Anka and Ferrara, Manuela and Nasov, Ilija and Rakočević, Zlatko Lj.",
year = "2018",
abstract = "Optical properties of TixOy thin film, of thickness 125 nm, obtained by pulsed magnetron sputtering were investigated in this paper. XRD analysis revealed the presence of anatase, rutile, TiO, Ti2O3and Ti3O5phases. XPS analysis showed similar results. SEM analysis showed quite smooth surface of the film. Spectroscopic ellipsometry revealed sharp decrease of refractive index in wavelength range 300-500 nm and extremely low values of extinction coefficients which are less than 0.01 at wavelengths equal to or higher than 500 nm.",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "TixOy thin films with extremely low extinction coefficients obtained by pulsed magnetron sputtering",
volume = "20",
number = "3-4",
pages = "169-174"
}
Jokanović, V. R., Čolović, B. M., Bundaleski, N., Jokanović, M., Trajkovska Petkoska, A., Ferrara, M., Nasov, I.,& Rakočević, Z. Lj.. (2018). TixOy thin films with extremely low extinction coefficients obtained by pulsed magnetron sputtering. in Journal of Optoelectronics and Advanced Materials, 20(3-4), 169-174.
Jokanović VR, Čolović BM, Bundaleski N, Jokanović M, Trajkovska Petkoska A, Ferrara M, Nasov I, Rakočević ZL. TixOy thin films with extremely low extinction coefficients obtained by pulsed magnetron sputtering. in Journal of Optoelectronics and Advanced Materials. 2018;20(3-4):169-174..
Jokanović, Vukoman R., Čolović, Božana M., Bundaleski, Nenad, Jokanović, M., Trajkovska Petkoska, Anka, Ferrara, Manuela, Nasov, Ilija, Rakočević, Zlatko Lj., "TixOy thin films with extremely low extinction coefficients obtained by pulsed magnetron sputtering" in Journal of Optoelectronics and Advanced Materials, 20, no. 3-4 (2018):169-174.
2

Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics

Nešić, Mioljub V.; Popović, Milan; Rabasović, Mihailo D.; Miličević, Dejan S.; Suljovrujić, Edin H.; Markushev, Dragan D.; Stojanović, Zoran A.

(2018)

TY  - JOUR
AU  - Nešić, Mioljub V.
AU  - Popović, Milan
AU  - Rabasović, Mihailo D.
AU  - Miličević, Dejan S.
AU  - Suljovrujić, Edin H.
AU  - Markushev, Dragan D.
AU  - Stojanović, Zoran A.
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7199
AB  - In this work, thermal diffusivity of crystalline high-density polyethylene samples of various thickness, and prepared using different procedures, was evaluated by transmission gas-microphone frequency photoacoustics. The samples composition analysis and their degree of crystallinity were determined from the wide-angle X-ray diffraction, which confirmed that high-density polyethylene samples, obtained by slow and fast cooling, were equivalent in composition but with different degrees of crystallinity. Structural analysis, performed by differential scanning calorimetry, demonstrated that all of the used samples had different levels of crystallinity, depending not only on the preparing procedure, but also on sample thickness. Therefore, in order to evaluate the samples thermal diffusivity, it was necessary to modify standard photoacoustic fitting procedures (based on the normalization of photoacoustic amplitude and phase characteristics on two thickness levels) for the interpretation of photoacoustic measurements. The calculated values of thermal diffusivity were in the range of the expected literature values. Besides that, the obtained results indicate the unexpected correlation between the values of thermal diffusivity and thermal conductivity with the degree of crystallinity of the investigated geometrically thin samples. The results indicate the necessity of additional investigation of energy transport in macromolecular systems, as well as the possible employment of the photoacoustic techniques in order to clarify its mechanism.
T2  - International Journal of Thermophysics
T1  - Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics
VL  - 39
IS  - 2
DO  - 10.1007/s10765-017-2345-0
ER  - 
@article{
author = "Nešić, Mioljub V. and Popović, Milan and Rabasović, Mihailo D. and Miličević, Dejan S. and Suljovrujić, Edin H. and Markushev, Dragan D. and Stojanović, Zoran A.",
year = "2018",
abstract = "In this work, thermal diffusivity of crystalline high-density polyethylene samples of various thickness, and prepared using different procedures, was evaluated by transmission gas-microphone frequency photoacoustics. The samples composition analysis and their degree of crystallinity were determined from the wide-angle X-ray diffraction, which confirmed that high-density polyethylene samples, obtained by slow and fast cooling, were equivalent in composition but with different degrees of crystallinity. Structural analysis, performed by differential scanning calorimetry, demonstrated that all of the used samples had different levels of crystallinity, depending not only on the preparing procedure, but also on sample thickness. Therefore, in order to evaluate the samples thermal diffusivity, it was necessary to modify standard photoacoustic fitting procedures (based on the normalization of photoacoustic amplitude and phase characteristics on two thickness levels) for the interpretation of photoacoustic measurements. The calculated values of thermal diffusivity were in the range of the expected literature values. Besides that, the obtained results indicate the unexpected correlation between the values of thermal diffusivity and thermal conductivity with the degree of crystallinity of the investigated geometrically thin samples. The results indicate the necessity of additional investigation of energy transport in macromolecular systems, as well as the possible employment of the photoacoustic techniques in order to clarify its mechanism.",
journal = "International Journal of Thermophysics",
title = "Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics",
volume = "39",
number = "2",
doi = "10.1007/s10765-017-2345-0"
}
Nešić, M. V., Popović, M., Rabasović, M. D., Miličević, D. S., Suljovrujić, E. H., Markushev, D. D.,& Stojanović, Z. A.. (2018). Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics. in International Journal of Thermophysics, 39(2).
https://doi.org/10.1007/s10765-017-2345-0
Nešić MV, Popović M, Rabasović MD, Miličević DS, Suljovrujić EH, Markushev DD, Stojanović ZA. Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics. in International Journal of Thermophysics. 2018;39(2).
doi:10.1007/s10765-017-2345-0 .
Nešić, Mioljub V., Popović, Milan, Rabasović, Mihailo D., Miličević, Dejan S., Suljovrujić, Edin H., Markushev, Dragan D., Stojanović, Zoran A., "Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics" in International Journal of Thermophysics, 39, no. 2 (2018),
https://doi.org/10.1007/s10765-017-2345-0 . .
4
4
4

Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates

Jokanović, Vukoman R.; Čolović, Božana M.; Prokić, Bogomir Bolka; Tomanović, Nada; Popović Bajić, Marijana; Živković, Slavoljub

(2018)

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Čolović, Božana M.
AU  - Prokić, Bogomir Bolka
AU  - Tomanović, Nada
AU  - Popović Bajić, Marijana
AU  - Živković, Slavoljub
PY  - 2018
UR  - https://www.hindawi.com/journals/amse/2018/8493439/
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8061
AB  - As an alternative to MTA, a new endodontic material based on hydroxyapatite and calcium silicates (ALBO-MPSA) has been synthesized, and its biocompatibility has been studied in many in vitro and in vivo studies. The current study aims to evaluate a subchronic systemic toxicity of ALBO-MPSA on the rat animal model, as a continuation of the previous studies. Biochemical parameters of blood and histological parameters of the liver, kidneys, and spleen of the rats were analyzed after 120 days of consumption of the aqueous extract of ALBO-MPSA. The results showed no myelotoxic effect or autoimmune effect on peripheral blood cells and no pathological effect on the liver, kidney, and spleen tissues. Besides, no changes in the skin and hair of the rats, neither the change in the consumption of food and water, nor the change in their usual behavior were noticed during the experiment.
T2  - Advances in Materials Science and Engineering
T1  - Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates
VL  - 2018
SP  - 1
EP  - 6
DO  - 10.1155/2018/8493439
ER  - 
@article{
author = "Jokanović, Vukoman R. and Čolović, Božana M. and Prokić, Bogomir Bolka and Tomanović, Nada and Popović Bajić, Marijana and Živković, Slavoljub",
year = "2018",
abstract = "As an alternative to MTA, a new endodontic material based on hydroxyapatite and calcium silicates (ALBO-MPSA) has been synthesized, and its biocompatibility has been studied in many in vitro and in vivo studies. The current study aims to evaluate a subchronic systemic toxicity of ALBO-MPSA on the rat animal model, as a continuation of the previous studies. Biochemical parameters of blood and histological parameters of the liver, kidneys, and spleen of the rats were analyzed after 120 days of consumption of the aqueous extract of ALBO-MPSA. The results showed no myelotoxic effect or autoimmune effect on peripheral blood cells and no pathological effect on the liver, kidney, and spleen tissues. Besides, no changes in the skin and hair of the rats, neither the change in the consumption of food and water, nor the change in their usual behavior were noticed during the experiment.",
journal = "Advances in Materials Science and Engineering",
title = "Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates",
volume = "2018",
pages = "1-6",
doi = "10.1155/2018/8493439"
}
Jokanović, V. R., Čolović, B. M., Prokić, B. B., Tomanović, N., Popović Bajić, M.,& Živković, S.. (2018). Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates. in Advances in Materials Science and Engineering, 2018, 1-6.
https://doi.org/10.1155/2018/8493439
Jokanović VR, Čolović BM, Prokić BB, Tomanović N, Popović Bajić M, Živković S. Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates. in Advances in Materials Science and Engineering. 2018;2018:1-6.
doi:10.1155/2018/8493439 .
Jokanović, Vukoman R., Čolović, Božana M., Prokić, Bogomir Bolka, Tomanović, Nada, Popović Bajić, Marijana, Živković, Slavoljub, "Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates" in Advances in Materials Science and Engineering, 2018 (2018):1-6,
https://doi.org/10.1155/2018/8493439 . .
2
2
2

Ultrasmall iron oxide nanoparticles: Magnetic and NMR relaxometric properties

Babić-Stojić, Branka S.; Jokanović, Vukoman R.; Milivojević, Dušan; Pozek, Miroslav; Jaglicic, Zvonko; Makovec, Darko; Jović Orsini, Nataša; Marković, Mirjana; Arsikin, Katarina M.; Paunović, Verica G.

(2018)

TY  - JOUR
AU  - Babić-Stojić, Branka S.
AU  - Jokanović, Vukoman R.
AU  - Milivojević, Dušan
AU  - Pozek, Miroslav
AU  - Jaglicic, Zvonko
AU  - Makovec, Darko
AU  - Jović Orsini, Nataša
AU  - Marković, Mirjana
AU  - Arsikin, Katarina M.
AU  - Paunović, Verica G.
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1889
AB  - Ultrasmall iron oxide (USPIO) nanoparticles, with diameter mostly less than 3 nm dispersed in an organic carrier fluid were synthesized by polyol route. The evolution of ZFC-FC magnetization curves with temperature, as well as the shift of the ac susceptibility peaks upon changing the frequency, reveal that the nanoparticles in the fluid are non-interacting and superparamagnetic with the blocking temperature T-B similar to 10 K. The Mossbauer spectra analysis proposed the core/shell structure of the nanoparticles consisting of stoichiometric gamma-Fe2O3 core and non-stoichiometric shell. The nanoparticle surface layer has a great influence on their properties which is principally manifested in significant reduction of the magnetization and in a large increase in magnetic anisotropy. Magnetic moments do not saturate in fields up to 5 T, even at the lowest measured temperature, T = 5 K. The average magnetic particle diameter is changed from 1.3 to 1.8 nm with increasing magnetic field from 0 to 5 T which is noticeably smaller than the particle sizes measured by TEM. The estimated effective magnetic anisotropy constant value, K-eff = 2 x 10(5) J/m(3), is two orders of magnitude higher than in the bulk maghemite. Measurements of the longitudinal and transverse NMR relaxivity parameters on water diluted nanoparticle dispersions at 1.5 T gave the values r(1) = 0.028 mmol(-1) s(-1), r(2) = 0.050 mmol(-1) s(-1) and their ratio r(2)/r(1) = 1.8. Continuous increase of the T-1-weighted MRI signal intensity with increasing Fe concentration in the nanoparticle dispersions was observed which makes this ferrofluid to behave as a positive T-1 contrast agent. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Current Applied Physics
T1  - Ultrasmall iron oxide nanoparticles: Magnetic and NMR relaxometric properties
VL  - 18
IS  - 2
SP  - 141
EP  - 149
DO  - 10.1016/j.cap.2017.11.017
ER  - 
@article{
author = "Babić-Stojić, Branka S. and Jokanović, Vukoman R. and Milivojević, Dušan and Pozek, Miroslav and Jaglicic, Zvonko and Makovec, Darko and Jović Orsini, Nataša and Marković, Mirjana and Arsikin, Katarina M. and Paunović, Verica G.",
year = "2018",
abstract = "Ultrasmall iron oxide (USPIO) nanoparticles, with diameter mostly less than 3 nm dispersed in an organic carrier fluid were synthesized by polyol route. The evolution of ZFC-FC magnetization curves with temperature, as well as the shift of the ac susceptibility peaks upon changing the frequency, reveal that the nanoparticles in the fluid are non-interacting and superparamagnetic with the blocking temperature T-B similar to 10 K. The Mossbauer spectra analysis proposed the core/shell structure of the nanoparticles consisting of stoichiometric gamma-Fe2O3 core and non-stoichiometric shell. The nanoparticle surface layer has a great influence on their properties which is principally manifested in significant reduction of the magnetization and in a large increase in magnetic anisotropy. Magnetic moments do not saturate in fields up to 5 T, even at the lowest measured temperature, T = 5 K. The average magnetic particle diameter is changed from 1.3 to 1.8 nm with increasing magnetic field from 0 to 5 T which is noticeably smaller than the particle sizes measured by TEM. The estimated effective magnetic anisotropy constant value, K-eff = 2 x 10(5) J/m(3), is two orders of magnitude higher than in the bulk maghemite. Measurements of the longitudinal and transverse NMR relaxivity parameters on water diluted nanoparticle dispersions at 1.5 T gave the values r(1) = 0.028 mmol(-1) s(-1), r(2) = 0.050 mmol(-1) s(-1) and their ratio r(2)/r(1) = 1.8. Continuous increase of the T-1-weighted MRI signal intensity with increasing Fe concentration in the nanoparticle dispersions was observed which makes this ferrofluid to behave as a positive T-1 contrast agent. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Current Applied Physics",
title = "Ultrasmall iron oxide nanoparticles: Magnetic and NMR relaxometric properties",
volume = "18",
number = "2",
pages = "141-149",
doi = "10.1016/j.cap.2017.11.017"
}
Babić-Stojić, B. S., Jokanović, V. R., Milivojević, D., Pozek, M., Jaglicic, Z., Makovec, D., Jović Orsini, N., Marković, M., Arsikin, K. M.,& Paunović, V. G.. (2018). Ultrasmall iron oxide nanoparticles: Magnetic and NMR relaxometric properties. in Current Applied Physics, 18(2), 141-149.
https://doi.org/10.1016/j.cap.2017.11.017
Babić-Stojić BS, Jokanović VR, Milivojević D, Pozek M, Jaglicic Z, Makovec D, Jović Orsini N, Marković M, Arsikin KM, Paunović VG. Ultrasmall iron oxide nanoparticles: Magnetic and NMR relaxometric properties. in Current Applied Physics. 2018;18(2):141-149.
doi:10.1016/j.cap.2017.11.017 .
Babić-Stojić, Branka S., Jokanović, Vukoman R., Milivojević, Dušan, Pozek, Miroslav, Jaglicic, Zvonko, Makovec, Darko, Jović Orsini, Nataša, Marković, Mirjana, Arsikin, Katarina M., Paunović, Verica G., "Ultrasmall iron oxide nanoparticles: Magnetic and NMR relaxometric properties" in Current Applied Physics, 18, no. 2 (2018):141-149,
https://doi.org/10.1016/j.cap.2017.11.017 . .
14
13
13

Nanostructured endodontic materials mixed with different radiocontrast agents — biocompatibility study

Ćetenović, Bojana; Čolović, Božana M.; Vasilijić, Saša; Prokić, Bogomir; Pašalić, Snežana; Jokanović, Vukoman R.; Tepavčević, Zvezdana; Marković, Dejan Lj.

(2018)

TY  - JOUR
AU  - Ćetenović, Bojana
AU  - Čolović, Božana M.
AU  - Vasilijić, Saša
AU  - Prokić, Bogomir
AU  - Pašalić, Snežana
AU  - Jokanović, Vukoman R.
AU  - Tepavčević, Zvezdana
AU  - Marković, Dejan Lj.
PY  - 2018
UR  - http://link.springer.com/10.1007/s10856-018-6200-z
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7990
AB  - The aim of this study was to investigate the biocompatibility of nanostructured materials based on highly active calcium silicates mixed with different radiocontrast agents in comparison to MTA+ using in vitro and in vivo model. Morphology of materials’ samples was analyzed using SEM while the phase compositions were identified by XRD. pH values of materials’ suspensions were conducted by pH-meter. The cytotoxicity of materials’ solutions was tested by MTT test (100, 50, 25 and 12.5 mg/ml). LDH and 3H-thymidine assay were utilized for biocompatibility investigations of materials’ eluates (24 h, 7 day and 21 day). Eighteen Guinea pigs were used for intramuscular implantation, as teflon tubes with freshly prepared materials were placed into intramuscular pockets. All samples were composed of round and needle-like particles equally distributed with Ca/Si ratio ~2.7 at%, with the presence of hydrated calcium silicate phases. The pH values of ALBO-MPCA1 and ALBO-MPCA2 were high alkaline, while in case of MTA+ they were lower and continuously declined (p < 0.05). Investigated materials didn’t exhibit dose-dependent effect on metabolic activity of L929 cells (p > 0.05). Significant differences in the percentage of cytotoxicity between diluted and undiluted extracts between all tested materials after 24 h and 7 day were noticed (p < 0.05). Increase in L929 cells proliferation was noticed in case of undiluted eluates of ALBO-MPCA1 and ALBO-MPCA2 after 7 day (p < 0.05). There were no statistically significant differences in the intensity of inflammatory response between investigated materials and control group after 60 day (p > 0.05). Evaluation of biocompatibility of both ALBO-MPCA1 and ALBO-MPCA2 indicate their potential clinical use. [Figure not available: see fulltext.]. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Materials Science: Materials in Medicine
T1  - Nanostructured endodontic materials mixed with different radiocontrast agents — biocompatibility study
VL  - 29
IS  - 12
SP  - 190
DO  - 10.1007/s10856-018-6200-z
ER  - 
@article{
author = "Ćetenović, Bojana and Čolović, Božana M. and Vasilijić, Saša and Prokić, Bogomir and Pašalić, Snežana and Jokanović, Vukoman R. and Tepavčević, Zvezdana and Marković, Dejan Lj.",
year = "2018",
abstract = "The aim of this study was to investigate the biocompatibility of nanostructured materials based on highly active calcium silicates mixed with different radiocontrast agents in comparison to MTA+ using in vitro and in vivo model. Morphology of materials’ samples was analyzed using SEM while the phase compositions were identified by XRD. pH values of materials’ suspensions were conducted by pH-meter. The cytotoxicity of materials’ solutions was tested by MTT test (100, 50, 25 and 12.5 mg/ml). LDH and 3H-thymidine assay were utilized for biocompatibility investigations of materials’ eluates (24 h, 7 day and 21 day). Eighteen Guinea pigs were used for intramuscular implantation, as teflon tubes with freshly prepared materials were placed into intramuscular pockets. All samples were composed of round and needle-like particles equally distributed with Ca/Si ratio ~2.7 at%, with the presence of hydrated calcium silicate phases. The pH values of ALBO-MPCA1 and ALBO-MPCA2 were high alkaline, while in case of MTA+ they were lower and continuously declined (p < 0.05). Investigated materials didn’t exhibit dose-dependent effect on metabolic activity of L929 cells (p > 0.05). Significant differences in the percentage of cytotoxicity between diluted and undiluted extracts between all tested materials after 24 h and 7 day were noticed (p < 0.05). Increase in L929 cells proliferation was noticed in case of undiluted eluates of ALBO-MPCA1 and ALBO-MPCA2 after 7 day (p < 0.05). There were no statistically significant differences in the intensity of inflammatory response between investigated materials and control group after 60 day (p > 0.05). Evaluation of biocompatibility of both ALBO-MPCA1 and ALBO-MPCA2 indicate their potential clinical use. [Figure not available: see fulltext.]. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Materials Science: Materials in Medicine",
title = "Nanostructured endodontic materials mixed with different radiocontrast agents — biocompatibility study",
volume = "29",
number = "12",
pages = "190",
doi = "10.1007/s10856-018-6200-z"
}
Ćetenović, B., Čolović, B. M., Vasilijić, S., Prokić, B., Pašalić, S., Jokanović, V. R., Tepavčević, Z.,& Marković, D. Lj.. (2018). Nanostructured endodontic materials mixed with different radiocontrast agents — biocompatibility study. in Journal of Materials Science: Materials in Medicine, 29(12), 190.
https://doi.org/10.1007/s10856-018-6200-z
Ćetenović B, Čolović BM, Vasilijić S, Prokić B, Pašalić S, Jokanović VR, Tepavčević Z, Marković DL. Nanostructured endodontic materials mixed with different radiocontrast agents — biocompatibility study. in Journal of Materials Science: Materials in Medicine. 2018;29(12):190.
doi:10.1007/s10856-018-6200-z .
Ćetenović, Bojana, Čolović, Božana M., Vasilijić, Saša, Prokić, Bogomir, Pašalić, Snežana, Jokanović, Vukoman R., Tepavčević, Zvezdana, Marković, Dejan Lj., "Nanostructured endodontic materials mixed with different radiocontrast agents — biocompatibility study" in Journal of Materials Science: Materials in Medicine, 29, no. 12 (2018):190,
https://doi.org/10.1007/s10856-018-6200-z . .
2
2
3

Smart hydrogels with ethylene glycol propylene glycol pendant chains

Rogić Miladinović, Zorana; Mićić, Maja M.; Mraković, Ana Đ.; Suljovrujić, Edin H.

(2017)

TY  - JOUR
AU  - Rogić Miladinović, Zorana
AU  - Mićić, Maja M.
AU  - Mraković, Ana Đ.
AU  - Suljovrujić, Edin H.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1884
AB  - New hydrogels based on different oligo(alkylene glycol) methacrylate (OAGMA) with inverse thermoresponse and volume phase transition temperature (VPTT) were obtained and characterised in this paper. Synthesis was performed from monomer-solvent (OAGMA-water/ethanol) mixture by simultaneous radiation-induced polymerisation and crosslinking; three different OAGMA (EG(6)MA, EG(6)PG(3)MA, and PG(5)MA) were used. The main focus was made on PEG(6)PG(3)MA hydrogel based on ethylene glycol (EG) propylene glycol (PG) pendant chains with EG (6) and PG (3) block units, since in the case of POPGMA and POEGMA homopolymers (i.e. hydrogels with pure PG and EG pendant chains) the VPTTs were observed far below and far above the human body temperature, respectively. Characterisation of the hydrogels was performed by swelling, UV-Vis, FTIR, SEM, DSC and in vitro biocompatibility (cytocompatibility and haemolytic activity) investigations. Due to the possibility to combine VPTT close to human body temperature with good biocompatibility, new hydrogel based on EGPG block pendant chains showed promising potential for different biomedical applications.
T2  - Journal of Polymer Research
T1  - Smart hydrogels with ethylene glycol propylene glycol pendant chains
VL  - 25
IS  - 1
DO  - 10.1007/s10965-017-1408-z
ER  - 
@article{
author = "Rogić Miladinović, Zorana and Mićić, Maja M. and Mraković, Ana Đ. and Suljovrujić, Edin H.",
year = "2017",
abstract = "New hydrogels based on different oligo(alkylene glycol) methacrylate (OAGMA) with inverse thermoresponse and volume phase transition temperature (VPTT) were obtained and characterised in this paper. Synthesis was performed from monomer-solvent (OAGMA-water/ethanol) mixture by simultaneous radiation-induced polymerisation and crosslinking; three different OAGMA (EG(6)MA, EG(6)PG(3)MA, and PG(5)MA) were used. The main focus was made on PEG(6)PG(3)MA hydrogel based on ethylene glycol (EG) propylene glycol (PG) pendant chains with EG (6) and PG (3) block units, since in the case of POPGMA and POEGMA homopolymers (i.e. hydrogels with pure PG and EG pendant chains) the VPTTs were observed far below and far above the human body temperature, respectively. Characterisation of the hydrogels was performed by swelling, UV-Vis, FTIR, SEM, DSC and in vitro biocompatibility (cytocompatibility and haemolytic activity) investigations. Due to the possibility to combine VPTT close to human body temperature with good biocompatibility, new hydrogel based on EGPG block pendant chains showed promising potential for different biomedical applications.",
journal = "Journal of Polymer Research",
title = "Smart hydrogels with ethylene glycol propylene glycol pendant chains",
volume = "25",
number = "1",
doi = "10.1007/s10965-017-1408-z"
}
Rogić Miladinović, Z., Mićić, M. M., Mraković, A. Đ.,& Suljovrujić, E. H.. (2017). Smart hydrogels with ethylene glycol propylene glycol pendant chains. in Journal of Polymer Research, 25(1).
https://doi.org/10.1007/s10965-017-1408-z
Rogić Miladinović Z, Mićić MM, Mraković AĐ, Suljovrujić EH. Smart hydrogels with ethylene glycol propylene glycol pendant chains. in Journal of Polymer Research. 2017;25(1).
doi:10.1007/s10965-017-1408-z .
Rogić Miladinović, Zorana, Mićić, Maja M., Mraković, Ana Đ., Suljovrujić, Edin H., "Smart hydrogels with ethylene glycol propylene glycol pendant chains" in Journal of Polymer Research, 25, no. 1 (2017),
https://doi.org/10.1007/s10965-017-1408-z . .
23
7
7

Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers

Ćetenović, Bojana; Prokic, Bogomir; Vasilijić, Saša; Dojčinović, Biljana P.; Magic, Marko; Jokanović, Vukoman R.; Marković, Dejan

(2017)

TY  - JOUR
AU  - Ćetenović, Bojana
AU  - Prokic, Bogomir
AU  - Vasilijić, Saša
AU  - Dojčinović, Biljana P.
AU  - Magic, Marko
AU  - Jokanović, Vukoman R.
AU  - Marković, Dejan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1451
AB  - Introduction: The aim of this article was to analyze biocompatibility and bioactivity of new endodontic materials on the basis of nanosynthesized calcium silicates (ALBO-MPCA(1) and ALBO-MPCA(2)) combined with different radiopacifiers in comparison with MTA(+). Methods: Morphology of the samples was studied by scanning electron microscopy, and the pH and ion release analysis were also assessed. Biocompatibility of materials eluates (24-hour, 7-day, and 21-day) was conducted by using MIT test. Twelve New Zealand white rabbits were used for intraosseous implantation. Four calvarial defects per animal were created and filled with freshly prepared investigated materials. Results: Samples mostly consisted of agglomerates built up from nanoparticles, preferably spherical and rod-like. There was no significant difference among pH values of materials eluates after 24 hours (P GT .05). The amount of calcium and aluminum ion release decreased, whereas the amount of magnesium and bismuth (ALBO-MPCAl, MTA(+)) and barium (ALBO-MPCA(2)) increased during 21-day period. The metabolic activity of cells increased after the extraction time, except in case of undiluted elutes of ALBO-MPCA(2) and ALBO-MPCAI (21-day). Histologic analysis of the samples revealed newly formed bone tissue with moderate inflammation for all investigated materials, which subsided during 90-day period to mild. Both MIA(+) and ALBO-MPCAI were in direct contact with the newly formed bone tissue. After 90 days, statistically significant difference in hard tissue formation was observed in comparison of MIA(+) and ALBO-MPCki with control group (P LT .05). Conclusions: Experimental materials ALBOMPCA, and ALBO-MPCA(2) possess both biocompatibility and bioactivity. Because ALBO-MPCAA provokes favorable biological response, it is especially good candidate for further clinical investigations.
T2  - Journal of Endodontics
T1  - Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers
VL  - 43
IS  - 3
SP  - 425
EP  - 432
DO  - 10.1016/j.joen.2016.10.041
ER  - 
@article{
author = "Ćetenović, Bojana and Prokic, Bogomir and Vasilijić, Saša and Dojčinović, Biljana P. and Magic, Marko and Jokanović, Vukoman R. and Marković, Dejan",
year = "2017",
abstract = "Introduction: The aim of this article was to analyze biocompatibility and bioactivity of new endodontic materials on the basis of nanosynthesized calcium silicates (ALBO-MPCA(1) and ALBO-MPCA(2)) combined with different radiopacifiers in comparison with MTA(+). Methods: Morphology of the samples was studied by scanning electron microscopy, and the pH and ion release analysis were also assessed. Biocompatibility of materials eluates (24-hour, 7-day, and 21-day) was conducted by using MIT test. Twelve New Zealand white rabbits were used for intraosseous implantation. Four calvarial defects per animal were created and filled with freshly prepared investigated materials. Results: Samples mostly consisted of agglomerates built up from nanoparticles, preferably spherical and rod-like. There was no significant difference among pH values of materials eluates after 24 hours (P GT .05). The amount of calcium and aluminum ion release decreased, whereas the amount of magnesium and bismuth (ALBO-MPCAl, MTA(+)) and barium (ALBO-MPCA(2)) increased during 21-day period. The metabolic activity of cells increased after the extraction time, except in case of undiluted elutes of ALBO-MPCA(2) and ALBO-MPCAI (21-day). Histologic analysis of the samples revealed newly formed bone tissue with moderate inflammation for all investigated materials, which subsided during 90-day period to mild. Both MIA(+) and ALBO-MPCAI were in direct contact with the newly formed bone tissue. After 90 days, statistically significant difference in hard tissue formation was observed in comparison of MIA(+) and ALBO-MPCki with control group (P LT .05). Conclusions: Experimental materials ALBOMPCA, and ALBO-MPCA(2) possess both biocompatibility and bioactivity. Because ALBO-MPCAA provokes favorable biological response, it is especially good candidate for further clinical investigations.",
journal = "Journal of Endodontics",
title = "Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers",
volume = "43",
number = "3",
pages = "425-432",
doi = "10.1016/j.joen.2016.10.041"
}
Ćetenović, B., Prokic, B., Vasilijić, S., Dojčinović, B. P., Magic, M., Jokanović, V. R.,& Marković, D.. (2017). Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers. in Journal of Endodontics, 43(3), 425-432.
https://doi.org/10.1016/j.joen.2016.10.041
Ćetenović B, Prokic B, Vasilijić S, Dojčinović BP, Magic M, Jokanović VR, Marković D. Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers. in Journal of Endodontics. 2017;43(3):425-432.
doi:10.1016/j.joen.2016.10.041 .
Ćetenović, Bojana, Prokic, Bogomir, Vasilijić, Saša, Dojčinović, Biljana P., Magic, Marko, Jokanović, Vukoman R., Marković, Dejan, "Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers" in Journal of Endodontics, 43, no. 3 (2017):425-432,
https://doi.org/10.1016/j.joen.2016.10.041 . .
3
9
7
9

Optical properties of titanium oxide films obtained by cathodic arc plasma deposition

Jokanović, Vukoman R.; Čolović, Božana M.; Trajkovska Petkoska, Anka; Mraković, Ana Đ.; Jokanović, Bojan; Nenadović, Miloš; Ferrara, Manuela; Nasov, Ilija

(2017)

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Čolović, Božana M.
AU  - Trajkovska Petkoska, Anka
AU  - Mraković, Ana Đ.
AU  - Jokanović, Bojan
AU  - Nenadović, Miloš
AU  - Ferrara, Manuela
AU  - Nasov, Ilija
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1871
AB  - Structural and optical properties of nanometric titanium oxide (TixOy) films obtained by cathodic arc plasma deposition were investigated. Phase analysis by x-ray diffraction and Fourier-transform infrared spectroscopy showed the presence of anatase, rutile, Ti2O3, Ti4O7 and amorphous phases. Scanning electron microscopy images showed well-developed surface morphology with nano-patterns. Spectroscopic ellipsometry revealed film thicknesses of 53 and 50 nm, variable refractive indices dependent on the light wavelength and close to zero extinction coefficients for wavelengths higher than 500 nm. On the basis of ultraviolet-visible spectroscopy data and using the Tauc equation, band gap values for direct and indirect electron transitions were determined.
T2  - Plasma Science and Technology
T1  - Optical properties of titanium oxide films obtained by cathodic arc plasma deposition
VL  - 19
IS  - 12
DO  - 10.1088/2058-6272/aa8806
ER  - 
@article{
author = "Jokanović, Vukoman R. and Čolović, Božana M. and Trajkovska Petkoska, Anka and Mraković, Ana Đ. and Jokanović, Bojan and Nenadović, Miloš and Ferrara, Manuela and Nasov, Ilija",
year = "2017",
abstract = "Structural and optical properties of nanometric titanium oxide (TixOy) films obtained by cathodic arc plasma deposition were investigated. Phase analysis by x-ray diffraction and Fourier-transform infrared spectroscopy showed the presence of anatase, rutile, Ti2O3, Ti4O7 and amorphous phases. Scanning electron microscopy images showed well-developed surface morphology with nano-patterns. Spectroscopic ellipsometry revealed film thicknesses of 53 and 50 nm, variable refractive indices dependent on the light wavelength and close to zero extinction coefficients for wavelengths higher than 500 nm. On the basis of ultraviolet-visible spectroscopy data and using the Tauc equation, band gap values for direct and indirect electron transitions were determined.",
journal = "Plasma Science and Technology",
title = "Optical properties of titanium oxide films obtained by cathodic arc plasma deposition",
volume = "19",
number = "12",
doi = "10.1088/2058-6272/aa8806"
}
Jokanović, V. R., Čolović, B. M., Trajkovska Petkoska, A., Mraković, A. Đ., Jokanović, B., Nenadović, M., Ferrara, M.,& Nasov, I.. (2017). Optical properties of titanium oxide films obtained by cathodic arc plasma deposition. in Plasma Science and Technology, 19(12).
https://doi.org/10.1088/2058-6272/aa8806
Jokanović VR, Čolović BM, Trajkovska Petkoska A, Mraković AĐ, Jokanović B, Nenadović M, Ferrara M, Nasov I. Optical properties of titanium oxide films obtained by cathodic arc plasma deposition. in Plasma Science and Technology. 2017;19(12).
doi:10.1088/2058-6272/aa8806 .
Jokanović, Vukoman R., Čolović, Božana M., Trajkovska Petkoska, Anka, Mraković, Ana Đ., Jokanović, Bojan, Nenadović, Miloš, Ferrara, Manuela, Nasov, Ilija, "Optical properties of titanium oxide films obtained by cathodic arc plasma deposition" in Plasma Science and Technology, 19, no. 12 (2017),
https://doi.org/10.1088/2058-6272/aa8806 . .
4
3
4

Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation

Jokanović, Vukoman R.; Čolović, Božana M.; Marković, Dejan; Petrović, Milan; Soldatovic, Ivan; Antonijević, Đorđe; Milosavljević, Petar; Sjerobabin, Nikola; Sopta, Jelena

(2017)

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Čolović, Božana M.
AU  - Marković, Dejan
AU  - Petrović, Milan
AU  - Soldatovic, Ivan
AU  - Antonijević, Đorđe
AU  - Milosavljević, Petar
AU  - Sjerobabin, Nikola
AU  - Sopta, Jelena
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1604
AB  - This study examined the potential of a new porous calcium hydroxyapatite scaffold covered with poly (lactide-co-glycolide) (PLGA) as a bone substitute, identifying its advantages over Geistlich Bio-Oss (R), considered the gold standard, in in vivo biofunctionality investigations. Structural and morphological properties of the new scaffold were analyzed by scanning electron and atomic force microscopy. The biofunctionality assays were performed on New Zealand white rabbits using new scaffold for filling full-thickness defects of critical size. The evaluated parameters were: the presence of macrophages, giant cells, monoocytes, plasma cells, granulocytes, neo-angiogenesis, fibroplasia, and the percentage of mineralization. Parallel biofunctionality assays were performed using Geistlich Bio-Oss (R). The appearance of bone defects 12 weeks after the new scaffold implantation showed the presence of a small number of typical immune response cells. Furthermore, significantly reduced number of capillary buds, low intensity of fibroplasia and high degree of mineralization in a lamellar pattern indicated that the inflammation process has been almost completely overcome and that the new bone formed was in the final phase of remodeling. All biofunctionality assays proved the new scaffolds suitability as a bone substitute for applications in maxillofacial surgery. It showed numerous biological advantages over Geistlich Bio-Oss (R) which was reflected mainly as a lower number of giant cells surrounding implanted material and higher degree of mineralization in new formed bone.
T2  - Biomedical Engineering / Biomedizinische Technik
T1  - Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation
VL  - 62
IS  - 3
SP  - 295
EP  - 306
DO  - 10.1515/bmt-2015-0164
ER  - 
@article{
author = "Jokanović, Vukoman R. and Čolović, Božana M. and Marković, Dejan and Petrović, Milan and Soldatovic, Ivan and Antonijević, Đorđe and Milosavljević, Petar and Sjerobabin, Nikola and Sopta, Jelena",
year = "2017",
abstract = "This study examined the potential of a new porous calcium hydroxyapatite scaffold covered with poly (lactide-co-glycolide) (PLGA) as a bone substitute, identifying its advantages over Geistlich Bio-Oss (R), considered the gold standard, in in vivo biofunctionality investigations. Structural and morphological properties of the new scaffold were analyzed by scanning electron and atomic force microscopy. The biofunctionality assays were performed on New Zealand white rabbits using new scaffold for filling full-thickness defects of critical size. The evaluated parameters were: the presence of macrophages, giant cells, monoocytes, plasma cells, granulocytes, neo-angiogenesis, fibroplasia, and the percentage of mineralization. Parallel biofunctionality assays were performed using Geistlich Bio-Oss (R). The appearance of bone defects 12 weeks after the new scaffold implantation showed the presence of a small number of typical immune response cells. Furthermore, significantly reduced number of capillary buds, low intensity of fibroplasia and high degree of mineralization in a lamellar pattern indicated that the inflammation process has been almost completely overcome and that the new bone formed was in the final phase of remodeling. All biofunctionality assays proved the new scaffolds suitability as a bone substitute for applications in maxillofacial surgery. It showed numerous biological advantages over Geistlich Bio-Oss (R) which was reflected mainly as a lower number of giant cells surrounding implanted material and higher degree of mineralization in new formed bone.",
journal = "Biomedical Engineering / Biomedizinische Technik",
title = "Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation",
volume = "62",
number = "3",
pages = "295-306",
doi = "10.1515/bmt-2015-0164"
}
Jokanović, V. R., Čolović, B. M., Marković, D., Petrović, M., Soldatovic, I., Antonijević, Đ., Milosavljević, P., Sjerobabin, N.,& Sopta, J.. (2017). Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation. in Biomedical Engineering / Biomedizinische Technik, 62(3), 295-306.
https://doi.org/10.1515/bmt-2015-0164
Jokanović VR, Čolović BM, Marković D, Petrović M, Soldatovic I, Antonijević Đ, Milosavljević P, Sjerobabin N, Sopta J. Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation. in Biomedical Engineering / Biomedizinische Technik. 2017;62(3):295-306.
doi:10.1515/bmt-2015-0164 .
Jokanović, Vukoman R., Čolović, Božana M., Marković, Dejan, Petrović, Milan, Soldatovic, Ivan, Antonijević, Đorđe, Milosavljević, Petar, Sjerobabin, Nikola, Sopta, Jelena, "Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation" in Biomedical Engineering / Biomedizinische Technik, 62, no. 3 (2017):295-306,
https://doi.org/10.1515/bmt-2015-0164 . .
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The influence of the preparation conditions and filler content on thermal properties of poly-L-lactide and hydroxyapatite/poly-L-lactide nanocomposite

Miličević, Dejan S.; Suljovrujić, Edin H.

(2017)

TY  - JOUR
AU  - Miličević, Dejan S.
AU  - Suljovrujić, Edin H.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1676
AB  - Poly-L-lactide (PLLA) and hydroxyapatite/poly-L-lactide (HAp/PLLA) are two widely used biomaterials for three-dimensional scaffolds, drug release matrices and implantable medical devices for reparation of bone tissue; diversity in the initial preparation and filler content has a significant influence on different properties such as morphology and crystallinity, thus playing a considerable role in most of these applications. For this reason, PLLA and HAp/PLLA samples with a large difference in crystallinity (from below 20% to over 70%) and filler content (up to 86 wt% of HAp nanoparticles with an average diameter of 80 nm) were prepared and consequent dissimilarities in morphology, crystallinity and thermal properties were investigated by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD) measurements and Fourier transform infrared (FTIR) spectroscopy. Special attention was devoted to analyzing data obtained from thermal measurements. A three-phase model was employed in order to describe the heat capacity step decline in the nanocomposite; the evolution in different polymer fractions, the crystalline fraction and the mobile and rigid amorphous fractions, with filler content was determined. (c) 2017 Society of Chemical Industry
T2  - Polymer International
T1  - The influence of the preparation conditions and filler content on thermal properties of poly-L-lactide and hydroxyapatite/poly-L-lactide nanocomposite
VL  - 66
IS  - 9
SP  - 1275
EP  - 1283
DO  - 10.1002/pi.5382
ER  - 
@article{
author = "Miličević, Dejan S. and Suljovrujić, Edin H.",
year = "2017",
abstract = "Poly-L-lactide (PLLA) and hydroxyapatite/poly-L-lactide (HAp/PLLA) are two widely used biomaterials for three-dimensional scaffolds, drug release matrices and implantable medical devices for reparation of bone tissue; diversity in the initial preparation and filler content has a significant influence on different properties such as morphology and crystallinity, thus playing a considerable role in most of these applications. For this reason, PLLA and HAp/PLLA samples with a large difference in crystallinity (from below 20% to over 70%) and filler content (up to 86 wt% of HAp nanoparticles with an average diameter of 80 nm) were prepared and consequent dissimilarities in morphology, crystallinity and thermal properties were investigated by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD) measurements and Fourier transform infrared (FTIR) spectroscopy. Special attention was devoted to analyzing data obtained from thermal measurements. A three-phase model was employed in order to describe the heat capacity step decline in the nanocomposite; the evolution in different polymer fractions, the crystalline fraction and the mobile and rigid amorphous fractions, with filler content was determined. (c) 2017 Society of Chemical Industry",
journal = "Polymer International",
title = "The influence of the preparation conditions and filler content on thermal properties of poly-L-lactide and hydroxyapatite/poly-L-lactide nanocomposite",
volume = "66",
number = "9",
pages = "1275-1283",
doi = "10.1002/pi.5382"
}
Miličević, D. S.,& Suljovrujić, E. H.. (2017). The influence of the preparation conditions and filler content on thermal properties of poly-L-lactide and hydroxyapatite/poly-L-lactide nanocomposite. in Polymer International, 66(9), 1275-1283.
https://doi.org/10.1002/pi.5382
Miličević DS, Suljovrujić EH. The influence of the preparation conditions and filler content on thermal properties of poly-L-lactide and hydroxyapatite/poly-L-lactide nanocomposite. in Polymer International. 2017;66(9):1275-1283.
doi:10.1002/pi.5382 .
Miličević, Dejan S., Suljovrujić, Edin H., "The influence of the preparation conditions and filler content on thermal properties of poly-L-lactide and hydroxyapatite/poly-L-lactide nanocomposite" in Polymer International, 66, no. 9 (2017):1275-1283,
https://doi.org/10.1002/pi.5382 . .
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