TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Dodevski, Vladimir
AU  - Veljković, Filip M.
AU  - Janković, Marija M.
AU  - Manić, Nebojša
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13254
AB  - This work examined the possibilities and limitations of model-free and model-based methods related to decrypting the kinetic complexity of multi-step thermo-oxidative degradation processes (as a testing system, a [4-(hydroxymethyl)phenoxymethyl] polystyrene resin was used), monitored by thermal analysis (TGA-DTG-DTA) techniques. It was found that isoconversional methods could successfully determine the correct number of process stages and presence of multiple reactions based on derived Ea(α) profiles and identify the negative dependence of the rate constant on the temperature. These methods could not overcome the problem that arose due to mass transfer limitations. The model-based method overcame more successfully the problem associated with mass transfer because its calculation machinery had capabilities for the correct solution of the total mass balance equation. However, a perfect fit with the experimental data was not achieved due to the dependence on the thermal history of the contribution (ctb.) of a given reaction step inside a fitting procedure cycle. On the other hand, through this approach, it was possible to estimate the rate-controlling steps of the process regarding the influence of the heating rate. It was found that for consecutive reaction mechanisms, the production of benzaldehyde and gases in high yields was controlled by the heating rate, where low heating rates were strongly recommended (≤10 K/min). Also, it was shown that the transport phenomenon may be also the rate-determining step (within the set of “intrinsic” kinetic parameters). It was also established that external heat transfer controls the overall rate, where the “pure” kinetic control regime had not been reached but was approached when lowering the temperature and size of the resin particles.
T2  - Fire
T1  - Application of Model-Free and Model-Based Kinetic Methods in Evaluation of Reactions Complexity during Thermo-Oxidative Degradation Process: Case Study of [4-(Hydroxymethyl)phenoxymethyl] Polystyrene Resin
VL  - 7
IS  - 5
SP  - 165
DO  - 10.3390/fire7050165
ER  - 

@article{
author = "Janković, Bojan Ž. and Dodevski, Vladimir and Veljković, Filip M. and Janković, Marija M. and Manić, Nebojša",
year = "2024",
abstract = "This work examined the possibilities and limitations of model-free and model-based methods related to decrypting the kinetic complexity of multi-step thermo-oxidative degradation processes (as a testing system, a [4-(hydroxymethyl)phenoxymethyl] polystyrene resin was used), monitored by thermal analysis (TGA-DTG-DTA) techniques. It was found that isoconversional methods could successfully determine the correct number of process stages and presence of multiple reactions based on derived Ea(α) profiles and identify the negative dependence of the rate constant on the temperature. These methods could not overcome the problem that arose due to mass transfer limitations. The model-based method overcame more successfully the problem associated with mass transfer because its calculation machinery had capabilities for the correct solution of the total mass balance equation. However, a perfect fit with the experimental data was not achieved due to the dependence on the thermal history of the contribution (ctb.) of a given reaction step inside a fitting procedure cycle. On the other hand, through this approach, it was possible to estimate the rate-controlling steps of the process regarding the influence of the heating rate. It was found that for consecutive reaction mechanisms, the production of benzaldehyde and gases in high yields was controlled by the heating rate, where low heating rates were strongly recommended (≤10 K/min). Also, it was shown that the transport phenomenon may be also the rate-determining step (within the set of “intrinsic” kinetic parameters). It was also established that external heat transfer controls the overall rate, where the “pure” kinetic control regime had not been reached but was approached when lowering the temperature and size of the resin particles.",
journal = "Fire",
title = "Application of Model-Free and Model-Based Kinetic Methods in Evaluation of Reactions Complexity during Thermo-Oxidative Degradation Process: Case Study of [4-(Hydroxymethyl)phenoxymethyl] Polystyrene Resin",
volume = "7",
number = "5",
pages = "165",
doi = "10.3390/fire7050165"
}

Janković, B. Ž., Dodevski, V., Veljković, F. M., Janković, M. M.,& Manić, N.. (2024). Application of Model-Free and Model-Based Kinetic Methods in Evaluation of Reactions Complexity during Thermo-Oxidative Degradation Process: Case Study of [4-(Hydroxymethyl)phenoxymethyl] Polystyrene Resin. in Fire, 7(5), 165.
https://doi.org/10.3390/fire7050165

Janković BŽ, Dodevski V, Veljković FM, Janković MM, Manić N. Application of Model-Free and Model-Based Kinetic Methods in Evaluation of Reactions Complexity during Thermo-Oxidative Degradation Process: Case Study of [4-(Hydroxymethyl)phenoxymethyl] Polystyrene Resin. in Fire. 2024;7(5):165.
doi:10.3390/fire7050165 .

Janković, Bojan Ž., Dodevski, Vladimir, Veljković, Filip M., Janković, Marija M., Manić, Nebojša, "Application of Model-Free and Model-Based Kinetic Methods in Evaluation of Reactions Complexity during Thermo-Oxidative Degradation Process: Case Study of [4-(Hydroxymethyl)phenoxymethyl] Polystyrene Resin" in Fire, 7, no. 5 (2024):165,
https://doi.org/10.3390/fire7050165 . .

TY  - JOUR
AU  - Brdarić, Tanja
AU  - Aćimović, Danka
AU  - Savić Rosić, Branislava
AU  - Simić, Marija
AU  - Stojanović, Katarina
AU  - Vranješ, Zdravko
AU  - Vasić Anićijević, Dragana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13295
AB  - Last decade, a growing emphasis on developing sustainable and environmentally friendly technologies for electro-oxidative wastewater treatment has catalyzed innovation and spurred research efforts worldwide. Researchers may explore the use of renewable energy sources to drive electrochemical processes, as well as the development of eco-friendly electrode materials for wastewater treatments. The integration of nanostructured anodes into the electrolytic system for wastewater treatment has led to significant advancements in the removal of pollutants via electro-oxidation. Despite the great number of research articles related to the development and use of nanostructured anodes for electro-oxidative wastewater treatment, to our knowledge, no bibliometric analysis has been published in this domain. Therefore, this work presents a bibliometric study of publications on the designated theme, retrieved from theWeb of Science Core Collection database, which were published over the last decade. The visual and network analysis of co-authorship among authors, organizations, countries, co-citation of authors, citation of documents and sources, as well as the co-occurrence of author keywords was performed using two compatible pieces of scientometric software, namely VOSviewer (version 1.6.18) and CiteSpace (version 6.2.R4). From 2013 to 2023, there has been a gradual increase in the number of publications regarding the development and use of nanostructured anodes for electro-oxidative wastewater treatment. It suggests a steady advancement in this field. The People’s Republic of China emerges as the most productive country, and it is a leader in international collaborations. Also, the United States of America, South Korea, and European Union countries have significant impacts on the research in this domain. The development and application of nanostructured materials for urea electro-oxidation is a main and prospective research theme. This bibliometric analysis allowed for the visualization of the present landscape and upcoming trends in this research field, thereby facilitating future collaborative research endeavors and knowledge exchange.
T2  - Sustainability
T1  - Bibliometric Analysis of Nanostructured Anodes for Electro-Oxidative Wastewater Treatment
VL  - 16
IS  - 10
SP  - 3982
DO  - 10.3390/su16103982
ER  - 

@article{
author = "Brdarić, Tanja and Aćimović, Danka and Savić Rosić, Branislava and Simić, Marija and Stojanović, Katarina and Vranješ, Zdravko and Vasić Anićijević, Dragana",
year = "2024",
abstract = "Last decade, a growing emphasis on developing sustainable and environmentally friendly technologies for electro-oxidative wastewater treatment has catalyzed innovation and spurred research efforts worldwide. Researchers may explore the use of renewable energy sources to drive electrochemical processes, as well as the development of eco-friendly electrode materials for wastewater treatments. The integration of nanostructured anodes into the electrolytic system for wastewater treatment has led to significant advancements in the removal of pollutants via electro-oxidation. Despite the great number of research articles related to the development and use of nanostructured anodes for electro-oxidative wastewater treatment, to our knowledge, no bibliometric analysis has been published in this domain. Therefore, this work presents a bibliometric study of publications on the designated theme, retrieved from theWeb of Science Core Collection database, which were published over the last decade. The visual and network analysis of co-authorship among authors, organizations, countries, co-citation of authors, citation of documents and sources, as well as the co-occurrence of author keywords was performed using two compatible pieces of scientometric software, namely VOSviewer (version 1.6.18) and CiteSpace (version 6.2.R4). From 2013 to 2023, there has been a gradual increase in the number of publications regarding the development and use of nanostructured anodes for electro-oxidative wastewater treatment. It suggests a steady advancement in this field. The People’s Republic of China emerges as the most productive country, and it is a leader in international collaborations. Also, the United States of America, South Korea, and European Union countries have significant impacts on the research in this domain. The development and application of nanostructured materials for urea electro-oxidation is a main and prospective research theme. This bibliometric analysis allowed for the visualization of the present landscape and upcoming trends in this research field, thereby facilitating future collaborative research endeavors and knowledge exchange.",
journal = "Sustainability",
title = "Bibliometric Analysis of Nanostructured Anodes for Electro-Oxidative Wastewater Treatment",
volume = "16",
number = "10",
pages = "3982",
doi = "10.3390/su16103982"
}

Brdarić, T., Aćimović, D., Savić Rosić, B., Simić, M., Stojanović, K., Vranješ, Z.,& Vasić Anićijević, D.. (2024). Bibliometric Analysis of Nanostructured Anodes for Electro-Oxidative Wastewater Treatment. in Sustainability, 16(10), 3982.
https://doi.org/10.3390/su16103982

Brdarić T, Aćimović D, Savić Rosić B, Simić M, Stojanović K, Vranješ Z, Vasić Anićijević D. Bibliometric Analysis of Nanostructured Anodes for Electro-Oxidative Wastewater Treatment. in Sustainability. 2024;16(10):3982.
doi:10.3390/su16103982 .

Brdarić, Tanja, Aćimović, Danka, Savić Rosić, Branislava, Simić, Marija, Stojanović, Katarina, Vranješ, Zdravko, Vasić Anićijević, Dragana, "Bibliometric Analysis of Nanostructured Anodes for Electro-Oxidative Wastewater Treatment" in Sustainability, 16, no. 10 (2024):3982,
https://doi.org/10.3390/su16103982 . .

TY  - JOUR
AU  - Mladenović Nikolić, Nataša
AU  - Kljajević, Ljiljana
AU  - Nenadović, Snežana S.
AU  - Potočnik, Jelena
AU  - Knežević, Sanja
AU  - Dolenec, Sabina
AU  - Trivunac, Katarina
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13247
AB  - The objective of this study was to demonstrate the potential utilization of fly ash (FA), wood ash (WA), and metakaolin (MK) in developing new alkali-activated materials (AAMs) for the removal of cadmium ions from waste water. The synthesis of AAMs involved the dissolution of solid precursors, FA, WA, and MK, by a liquid activator (Na2SiO3 and NaOH). In concentrated solutions of the activator, the formation of an aluminosilicate gel structure occurred. DRIFT spectroscopy of the AAMs indicated main vibration bands between 1036 cm−1 and 996 cm−1, corresponding to Si-O-Si/Si-O-Al bands. Shifting vibration bands were seen at 1028 cm−1 to 1021 cm−1, indicating that the Si-O-Si/Si-O-Al bond is elongating, and the bond angle is decreasing. Based on the X-ray diffraction results, alkali-activated samples consist of an amorphous phase and residual mineral phases. The characteristic “hump” of an amorphous phase in the range from 20 to 40° 2θ was observed in FA and in all AWAFA samples. By the XRD patterns of the AAMs obtained by the activation of a solid three-component system, a new crystalline phase, gehlenite, was identified. The efficiency of AAMs in removing cadmium ions from aqueous solutions was tested under various conditions. The highest values of adsorption capacity, 64.76 mg/g (AWAFA6), 67.02 mg/g (AWAFAMK6), and 72.84 mg/g mg/g (AWAMK6), were obtained for materials activated with a 6 M NaOH solution in the alkali activator. The Langmuir adsorption isotherm and pseudo-second kinetic order provided the best fit for all investigated AAMs.
T2  - Gels
T1  - Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials
VL  - 10
IS  - 5
SP  - 317
DO  - 10.3390/gels10050317
ER  - 

@article{
author = "Mladenović Nikolić, Nataša and Kljajević, Ljiljana and Nenadović, Snežana S. and Potočnik, Jelena and Knežević, Sanja and Dolenec, Sabina and Trivunac, Katarina",
year = "2024",
abstract = "The objective of this study was to demonstrate the potential utilization of fly ash (FA), wood ash (WA), and metakaolin (MK) in developing new alkali-activated materials (AAMs) for the removal of cadmium ions from waste water. The synthesis of AAMs involved the dissolution of solid precursors, FA, WA, and MK, by a liquid activator (Na2SiO3 and NaOH). In concentrated solutions of the activator, the formation of an aluminosilicate gel structure occurred. DRIFT spectroscopy of the AAMs indicated main vibration bands between 1036 cm−1 and 996 cm−1, corresponding to Si-O-Si/Si-O-Al bands. Shifting vibration bands were seen at 1028 cm−1 to 1021 cm−1, indicating that the Si-O-Si/Si-O-Al bond is elongating, and the bond angle is decreasing. Based on the X-ray diffraction results, alkali-activated samples consist of an amorphous phase and residual mineral phases. The characteristic “hump” of an amorphous phase in the range from 20 to 40° 2θ was observed in FA and in all AWAFA samples. By the XRD patterns of the AAMs obtained by the activation of a solid three-component system, a new crystalline phase, gehlenite, was identified. The efficiency of AAMs in removing cadmium ions from aqueous solutions was tested under various conditions. The highest values of adsorption capacity, 64.76 mg/g (AWAFA6), 67.02 mg/g (AWAFAMK6), and 72.84 mg/g mg/g (AWAMK6), were obtained for materials activated with a 6 M NaOH solution in the alkali activator. The Langmuir adsorption isotherm and pseudo-second kinetic order provided the best fit for all investigated AAMs.",
journal = "Gels",
title = "Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials",
volume = "10",
number = "5",
pages = "317",
doi = "10.3390/gels10050317"
}

Mladenović Nikolić, N., Kljajević, L., Nenadović, S. S., Potočnik, J., Knežević, S., Dolenec, S.,& Trivunac, K.. (2024). Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials. in Gels, 10(5), 317.
https://doi.org/10.3390/gels10050317

Mladenović Nikolić N, Kljajević L, Nenadović SS, Potočnik J, Knežević S, Dolenec S, Trivunac K. Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials. in Gels. 2024;10(5):317.
doi:10.3390/gels10050317 .

Mladenović Nikolić, Nataša, Kljajević, Ljiljana, Nenadović, Snežana S., Potočnik, Jelena, Knežević, Sanja, Dolenec, Sabina, Trivunac, Katarina, "Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials" in Gels, 10, no. 5 (2024):317,
https://doi.org/10.3390/gels10050317 . .

TY  - JOUR
AU  - Đurđić, Slađana
AU  - Vlahović, Filip
AU  - Ognjanović, Miloš
AU  - Gemeiner, Pavol
AU  - Sarakhman, Olha
AU  - Stanković, Vesna
AU  - Mutić, Jelena
AU  - Stanković, Dalibor
AU  - Švorc, Lubomír
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12205
AB  - In the present work, a nanocomposite, based on embedding Co-doped CeO2 nanoparticles into graphitic carbon nitride (g-C3N4), was applied to functionalize commercial glassy carbon paste. This is the first application of the electrochemical sensor, developed through the proposed procedure, in electrochemical sensing. The sensor was utilized for the electrochemical determination of organophosphate pesticide fenitrothion (FNT). Cyclic voltammetry identified reversible oxidation of FNT (oxidation at 0.18 V and reduction at 0.13 V) and additional reduction at 0.62 V vs. Ag/AgCl in HCl solution (pH =1). Theoretical calculations were carried out to model and elucidate experimentally observed redox processes. Special attention was devoted to modeling experimental conditions, and based on the obtained results, a detailed redox mechanism of the investigated analyte was proposed. This represents the first complete and unambiguous elucidation of the FNT redox mechanism, supported by joined experimental and theoretical data. Square wave voltammetry (SWV) was utilized for quantification, whereby the FNT oxidation peak was chosen for monitoring the analyte concentration. The developed sensor provided a nanomolar detection limit (3.2 nmol L 1), a wide linear concentration range (from 0.01 to 13.7 μmol L 1), and good precision, repeatability, and selectivity towards FNT. Practical application possibility was explored by testing the sensor performance for examining tap water and apple samples. Recovery tests, conducted during the FNT-spiked sample assays, showed a great application capability of the developed sensor for real-time monitoring of FNT traces in environmental samples.
T2  - Science of The Total Environment
T1  - Nano-size cobalt-doped cerium oxide particles embedded into graphitic carbon nitride for enhanced electrochemical sensing of insecticide fenitrothion in environmental samples: An experimental study with the theoretical elucidation of redox events
VL  - 909
SP  - 168483
DO  - 10.1016/j.scitotenv.2023.168483
ER  - 

@article{
author = "Đurđić, Slađana and Vlahović, Filip and Ognjanović, Miloš and Gemeiner, Pavol and Sarakhman, Olha and Stanković, Vesna and Mutić, Jelena and Stanković, Dalibor and Švorc, Lubomír",
year = "2024",
abstract = "In the present work, a nanocomposite, based on embedding Co-doped CeO2 nanoparticles into graphitic carbon nitride (g-C3N4), was applied to functionalize commercial glassy carbon paste. This is the first application of the electrochemical sensor, developed through the proposed procedure, in electrochemical sensing. The sensor was utilized for the electrochemical determination of organophosphate pesticide fenitrothion (FNT). Cyclic voltammetry identified reversible oxidation of FNT (oxidation at 0.18 V and reduction at 0.13 V) and additional reduction at 0.62 V vs. Ag/AgCl in HCl solution (pH =1). Theoretical calculations were carried out to model and elucidate experimentally observed redox processes. Special attention was devoted to modeling experimental conditions, and based on the obtained results, a detailed redox mechanism of the investigated analyte was proposed. This represents the first complete and unambiguous elucidation of the FNT redox mechanism, supported by joined experimental and theoretical data. Square wave voltammetry (SWV) was utilized for quantification, whereby the FNT oxidation peak was chosen for monitoring the analyte concentration. The developed sensor provided a nanomolar detection limit (3.2 nmol L 1), a wide linear concentration range (from 0.01 to 13.7 μmol L 1), and good precision, repeatability, and selectivity towards FNT. Practical application possibility was explored by testing the sensor performance for examining tap water and apple samples. Recovery tests, conducted during the FNT-spiked sample assays, showed a great application capability of the developed sensor for real-time monitoring of FNT traces in environmental samples.",
journal = "Science of The Total Environment",
title = "Nano-size cobalt-doped cerium oxide particles embedded into graphitic carbon nitride for enhanced electrochemical sensing of insecticide fenitrothion in environmental samples: An experimental study with the theoretical elucidation of redox events",
volume = "909",
pages = "168483",
doi = "10.1016/j.scitotenv.2023.168483"
}

Đurđić, S., Vlahović, F., Ognjanović, M., Gemeiner, P., Sarakhman, O., Stanković, V., Mutić, J., Stanković, D.,& Švorc, L.. (2024). Nano-size cobalt-doped cerium oxide particles embedded into graphitic carbon nitride for enhanced electrochemical sensing of insecticide fenitrothion in environmental samples: An experimental study with the theoretical elucidation of redox events. in Science of The Total Environment, 909, 168483.
https://doi.org/10.1016/j.scitotenv.2023.168483

Đurđić S, Vlahović F, Ognjanović M, Gemeiner P, Sarakhman O, Stanković V, Mutić J, Stanković D, Švorc L. Nano-size cobalt-doped cerium oxide particles embedded into graphitic carbon nitride for enhanced electrochemical sensing of insecticide fenitrothion in environmental samples: An experimental study with the theoretical elucidation of redox events. in Science of The Total Environment. 2024;909:168483.
doi:10.1016/j.scitotenv.2023.168483 .

Đurđić, Slađana, Vlahović, Filip, Ognjanović, Miloš, Gemeiner, Pavol, Sarakhman, Olha, Stanković, Vesna, Mutić, Jelena, Stanković, Dalibor, Švorc, Lubomír, "Nano-size cobalt-doped cerium oxide particles embedded into graphitic carbon nitride for enhanced electrochemical sensing of insecticide fenitrothion in environmental samples: An experimental study with the theoretical elucidation of redox events" in Science of The Total Environment, 909 (2024):168483,
https://doi.org/10.1016/j.scitotenv.2023.168483 . .

TY  - JOUR
AU  - Stanković, Vesna
AU  - Đurđić, Slađana
AU  - Ognjanović, Miloš
AU  - Zlatić, Gloria
AU  - Stanković, Dalibor
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12670
AB  - In this study, we propose an eco-friendly method for synthesizing cerium tungstate nanoparticles using hydrothermal techniques. We used scanning, transmission electron microscopy, and X-ray diffraction to analyze the morphology of the synthesized nanoparticles. The results showed that the synthesized nanoparticles were uniform and highly crystalline, with a particle size of about 50 nm. The electrocatalytic properties of the nanoparticles were then investigated using cyclic voltammetry and electrochemical impedance spectroscopy. We further used the synthesized nanoparticles to develop an electrochemical sensor based on a carbon paste electrode that can detect hydroquinone. By optimizing the differential pulse voltammetric method, a wide linearity range of 0.4 to 45 µM and a low detection limit of 0.06 µM were obtained. The developed sensor also expressed excellent repeatability (RSD up to 3.8%) and reproducibility (RSD below 5%). Interferences had an insignificant impact on the determination of analytes, making it possible to use this method for monitoring hydroquinone concentrations in tap water. This study introduces a new approach to the chemistry of materials and the environment and demonstrates that a careful selection of components can lead to new horizons in analytical chemistry.
T2  - Sensors
T1  - Triangle-Shaped Cerium Tungstate Nanoparticles Used to Modify Carbon Paste Electrode for Sensitive Hydroquinone Detection in Water Samples
VL  - 24
IS  - 2
SP  - 705
DO  - 10.3390/s24020705
ER  - 

@article{
author = "Stanković, Vesna and Đurđić, Slađana and Ognjanović, Miloš and Zlatić, Gloria and Stanković, Dalibor",
year = "2024",
abstract = "In this study, we propose an eco-friendly method for synthesizing cerium tungstate nanoparticles using hydrothermal techniques. We used scanning, transmission electron microscopy, and X-ray diffraction to analyze the morphology of the synthesized nanoparticles. The results showed that the synthesized nanoparticles were uniform and highly crystalline, with a particle size of about 50 nm. The electrocatalytic properties of the nanoparticles were then investigated using cyclic voltammetry and electrochemical impedance spectroscopy. We further used the synthesized nanoparticles to develop an electrochemical sensor based on a carbon paste electrode that can detect hydroquinone. By optimizing the differential pulse voltammetric method, a wide linearity range of 0.4 to 45 µM and a low detection limit of 0.06 µM were obtained. The developed sensor also expressed excellent repeatability (RSD up to 3.8%) and reproducibility (RSD below 5%). Interferences had an insignificant impact on the determination of analytes, making it possible to use this method for monitoring hydroquinone concentrations in tap water. This study introduces a new approach to the chemistry of materials and the environment and demonstrates that a careful selection of components can lead to new horizons in analytical chemistry.",
journal = "Sensors",
title = "Triangle-Shaped Cerium Tungstate Nanoparticles Used to Modify Carbon Paste Electrode for Sensitive Hydroquinone Detection in Water Samples",
volume = "24",
number = "2",
pages = "705",
doi = "10.3390/s24020705"
}

Stanković, V., Đurđić, S., Ognjanović, M., Zlatić, G.,& Stanković, D.. (2024). Triangle-Shaped Cerium Tungstate Nanoparticles Used to Modify Carbon Paste Electrode for Sensitive Hydroquinone Detection in Water Samples. in Sensors, 24(2), 705.
https://doi.org/10.3390/s24020705

Stanković V, Đurđić S, Ognjanović M, Zlatić G, Stanković D. Triangle-Shaped Cerium Tungstate Nanoparticles Used to Modify Carbon Paste Electrode for Sensitive Hydroquinone Detection in Water Samples. in Sensors. 2024;24(2):705.
doi:10.3390/s24020705 .

Stanković, Vesna, Đurđić, Slađana, Ognjanović, Miloš, Zlatić, Gloria, Stanković, Dalibor, "Triangle-Shaped Cerium Tungstate Nanoparticles Used to Modify Carbon Paste Electrode for Sensitive Hydroquinone Detection in Water Samples" in Sensors, 24, no. 2 (2024):705,
https://doi.org/10.3390/s24020705 . .

TY  - JOUR
AU  - Korina, Elena
AU  - Karaberova, Arina
AU  - Bol’shakov, Oleg
AU  - Bulatova, Ekaterina
AU  - Golovin, Mikhail
AU  - Abramyan, Anton
AU  - Stanković, Dalibor M.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12875
AB  - Electrochemical sensing is an excellent analytical means with multiple applications. Most of the electrochemical developments are based on the novel electrochemically active substrates. A lot of them have been adopted from other fields of material science. Every new class of functional materials has impacted on the development of electroanalytical chemistry. In this view, lanthanide cuprates, a well recognized high temperature superconducting materials were considered for adrenaline sensing. Obtained from corresponding oxides, a highly crystalline La2CuO4 found to be a suitable substrate for analytical method development. It inherited sponge-like morphology common for the most of the previously reported lanthanum cuprates with narrow pore size distribution at 400–700 nm. Excellent charge mobility and low resistivity provided a carbon paste electrode with improved linearity range and low limit of detection. Repeatability and stability of the developed sensor were at satisfactory level. Sensor functionality was verified on the real samples with excellent recovery rates. With this work we suggest further development of electroanalytical methods with application of lanthanide cuprates.
T2  - Journal of The Electrochemical Society
T1  - Enhancing Adrenaline Sensing with Lanthanum Cuprate: A Promising Approach for a Novel Sensor
VL  - 171
IS  - 1
SP  - 017513
DO  - 10.1149/1945-7111/ad1ecb
ER  - 

@article{
author = "Korina, Elena and Karaberova, Arina and Bol’shakov, Oleg and Bulatova, Ekaterina and Golovin, Mikhail and Abramyan, Anton and Stanković, Dalibor M.",
year = "2024",
abstract = "Electrochemical sensing is an excellent analytical means with multiple applications. Most of the electrochemical developments are based on the novel electrochemically active substrates. A lot of them have been adopted from other fields of material science. Every new class of functional materials has impacted on the development of electroanalytical chemistry. In this view, lanthanide cuprates, a well recognized high temperature superconducting materials were considered for adrenaline sensing. Obtained from corresponding oxides, a highly crystalline La2CuO4 found to be a suitable substrate for analytical method development. It inherited sponge-like morphology common for the most of the previously reported lanthanum cuprates with narrow pore size distribution at 400–700 nm. Excellent charge mobility and low resistivity provided a carbon paste electrode with improved linearity range and low limit of detection. Repeatability and stability of the developed sensor were at satisfactory level. Sensor functionality was verified on the real samples with excellent recovery rates. With this work we suggest further development of electroanalytical methods with application of lanthanide cuprates.",
journal = "Journal of The Electrochemical Society",
title = "Enhancing Adrenaline Sensing with Lanthanum Cuprate: A Promising Approach for a Novel Sensor",
volume = "171",
number = "1",
pages = "017513",
doi = "10.1149/1945-7111/ad1ecb"
}

Korina, E., Karaberova, A., Bol’shakov, O., Bulatova, E., Golovin, M., Abramyan, A.,& Stanković, D. M.. (2024). Enhancing Adrenaline Sensing with Lanthanum Cuprate: A Promising Approach for a Novel Sensor. in Journal of The Electrochemical Society, 171(1), 017513.
https://doi.org/10.1149/1945-7111/ad1ecb

Korina E, Karaberova A, Bol’shakov O, Bulatova E, Golovin M, Abramyan A, Stanković DM. Enhancing Adrenaline Sensing with Lanthanum Cuprate: A Promising Approach for a Novel Sensor. in Journal of The Electrochemical Society. 2024;171(1):017513.
doi:10.1149/1945-7111/ad1ecb .

Korina, Elena, Karaberova, Arina, Bol’shakov, Oleg, Bulatova, Ekaterina, Golovin, Mikhail, Abramyan, Anton, Stanković, Dalibor M., "Enhancing Adrenaline Sensing with Lanthanum Cuprate: A Promising Approach for a Novel Sensor" in Journal of The Electrochemical Society, 171, no. 1 (2024):017513,
https://doi.org/10.1149/1945-7111/ad1ecb . .

TY  - JOUR
AU  - Mijajlović, Aleksandar
AU  - Stanković, Vesna
AU  - Vlahović, Filip
AU  - Đurđić, Slađana
AU  - Manojlović, Dragan
AU  - Stanković, Dalibor
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13021
AB  - Excessive pesticide use can harm human health, making it essential to develop new techniques to monitor hazardous pesticides in food. Our study focuses on detecting mesotrione (MST) using an unmodified boron-doped diamond (BDD) electrode. This was the first application of cathodically pretreated BDD electrode for the detection of MST, based on its oxidation at a high potential value of +1.4 V. We theoretically examined the oxidation mechanism of MST trough the utilization of density functional theory (DFT) methodology. The utilized DPV method achieved a detection limit of 0.45 μM and showed satisfactory selectivity. The practical application of this method was demonstrated by examining corn-based food products. To ensure practical application of the method, MST was deliberately added to the samples to evaluate the accuracy of the proposed method. The effectiveness of the method was confirmed by using HPLC method. This environmentally-friendly approach can establish a solid foundation for future use in food analysis.
T2  - Food Chemistry
T1  - The cathodically pretreated boron-doped diamond electrode as an environmentally friendly electrochemical tool for the detection and monitoring of mesotrione in food samples
VL  - 447
SP  - 138993
DO  - 10.1016/j.foodchem.2024.138993
ER  - 

@article{
author = "Mijajlović, Aleksandar and Stanković, Vesna and Vlahović, Filip and Đurđić, Slađana and Manojlović, Dragan and Stanković, Dalibor",
year = "2024",
abstract = "Excessive pesticide use can harm human health, making it essential to develop new techniques to monitor hazardous pesticides in food. Our study focuses on detecting mesotrione (MST) using an unmodified boron-doped diamond (BDD) electrode. This was the first application of cathodically pretreated BDD electrode for the detection of MST, based on its oxidation at a high potential value of +1.4 V. We theoretically examined the oxidation mechanism of MST trough the utilization of density functional theory (DFT) methodology. The utilized DPV method achieved a detection limit of 0.45 μM and showed satisfactory selectivity. The practical application of this method was demonstrated by examining corn-based food products. To ensure practical application of the method, MST was deliberately added to the samples to evaluate the accuracy of the proposed method. The effectiveness of the method was confirmed by using HPLC method. This environmentally-friendly approach can establish a solid foundation for future use in food analysis.",
journal = "Food Chemistry",
title = "The cathodically pretreated boron-doped diamond electrode as an environmentally friendly electrochemical tool for the detection and monitoring of mesotrione in food samples",
volume = "447",
pages = "138993",
doi = "10.1016/j.foodchem.2024.138993"
}

Mijajlović, A., Stanković, V., Vlahović, F., Đurđić, S., Manojlović, D.,& Stanković, D.. (2024). The cathodically pretreated boron-doped diamond electrode as an environmentally friendly electrochemical tool for the detection and monitoring of mesotrione in food samples. in Food Chemistry, 447, 138993.
https://doi.org/10.1016/j.foodchem.2024.138993

Mijajlović A, Stanković V, Vlahović F, Đurđić S, Manojlović D, Stanković D. The cathodically pretreated boron-doped diamond electrode as an environmentally friendly electrochemical tool for the detection and monitoring of mesotrione in food samples. in Food Chemistry. 2024;447:138993.
doi:10.1016/j.foodchem.2024.138993 .

Mijajlović, Aleksandar, Stanković, Vesna, Vlahović, Filip, Đurđić, Slađana, Manojlović, Dragan, Stanković, Dalibor, "The cathodically pretreated boron-doped diamond electrode as an environmentally friendly electrochemical tool for the detection and monitoring of mesotrione in food samples" in Food Chemistry, 447 (2024):138993,
https://doi.org/10.1016/j.foodchem.2024.138993 . .

TY  - JOUR
AU  - Mutić, Tijana
AU  - Ognjanović, Miloš
AU  - Ivković, Đurđa
AU  - Nikolić, Vladimir
AU  - Stanković, Vesna
AU  - Ristivojević, Petar
AU  - Stanković, Dalibor
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13031
AB  - In this study, we successfully prepared a modified nickel oxide (NiO) carbon paste electrode to detect gallic acid (GA). NiO nanoparticles were synthesized by the simple, organic solvent-free chemical coprecipitation method, and the electrochemical properties of the electrode and GA were thoroughly investigated using CV, SWV, and EIS, while morphological properties were examined using ICP-OES, TEM, SEM, and XRD. Excellent catalytic characteristics are displayed by the developed material which facilitates the interaction of the target with the electrode surface. The obtained electrochemical information showed that the incorporation of NiO nanoparticles to the carbon paste electrode effectively facilitates electron transfer processes and enriches the catalytic response of the carbon paste electrode. The fabricated NiO/CPE sensor showed a satisfactory linear relationship between peak current and GA concentration in the broad range of 0.2–100 μM and 100–200 μM with a low detection limit of 0.04 μM and limit of quantification of 0.12 μM at pH 3 of BRBS as supporting electrolyte. The selectivity of the proposed method was satisfactory, with acceptable stability, considerable repeatability, and accurate reproducibility. Moreover, the good practicability performance could be effectuated at the NiO/CPE sensor for the quantitative analysis of GA in bourtree, walnut, primrose, and chamomile tea samples. The results were compared with the standard DPPH test and statistical processing of the results was performed, which confirmed the excellent agreement between the two methods. The developed method can provide a cost-effective, rapid, selective, and sensitive means for GA monitoring. When compared to other works, the developed technique has a wider linear range and lower LOD and LOQ, which makes this work a very important reference for the highly sensitive analysis of GA in the field of food safety.
T2  - Journal of Electroanalytical Chemistry
T1  - Improving gallic acid detection in plant samples: Fabrication and optimization of a sensitive and selective NiO-supported carbon paste electrode
VL  - 960
SP  - 118213
DO  - 10.1016/j.jelechem.2024.118213
ER  - 

@article{
author = "Mutić, Tijana and Ognjanović, Miloš and Ivković, Đurđa and Nikolić, Vladimir and Stanković, Vesna and Ristivojević, Petar and Stanković, Dalibor",
year = "2024",
abstract = "In this study, we successfully prepared a modified nickel oxide (NiO) carbon paste electrode to detect gallic acid (GA). NiO nanoparticles were synthesized by the simple, organic solvent-free chemical coprecipitation method, and the electrochemical properties of the electrode and GA were thoroughly investigated using CV, SWV, and EIS, while morphological properties were examined using ICP-OES, TEM, SEM, and XRD. Excellent catalytic characteristics are displayed by the developed material which facilitates the interaction of the target with the electrode surface. The obtained electrochemical information showed that the incorporation of NiO nanoparticles to the carbon paste electrode effectively facilitates electron transfer processes and enriches the catalytic response of the carbon paste electrode. The fabricated NiO/CPE sensor showed a satisfactory linear relationship between peak current and GA concentration in the broad range of 0.2–100 μM and 100–200 μM with a low detection limit of 0.04 μM and limit of quantification of 0.12 μM at pH 3 of BRBS as supporting electrolyte. The selectivity of the proposed method was satisfactory, with acceptable stability, considerable repeatability, and accurate reproducibility. Moreover, the good practicability performance could be effectuated at the NiO/CPE sensor for the quantitative analysis of GA in bourtree, walnut, primrose, and chamomile tea samples. The results were compared with the standard DPPH test and statistical processing of the results was performed, which confirmed the excellent agreement between the two methods. The developed method can provide a cost-effective, rapid, selective, and sensitive means for GA monitoring. When compared to other works, the developed technique has a wider linear range and lower LOD and LOQ, which makes this work a very important reference for the highly sensitive analysis of GA in the field of food safety.",
journal = "Journal of Electroanalytical Chemistry",
title = "Improving gallic acid detection in plant samples: Fabrication and optimization of a sensitive and selective NiO-supported carbon paste electrode",
volume = "960",
pages = "118213",
doi = "10.1016/j.jelechem.2024.118213"
}

Mutić, T., Ognjanović, M., Ivković, Đ., Nikolić, V., Stanković, V., Ristivojević, P.,& Stanković, D.. (2024). Improving gallic acid detection in plant samples: Fabrication and optimization of a sensitive and selective NiO-supported carbon paste electrode. in Journal of Electroanalytical Chemistry, 960, 118213.
https://doi.org/10.1016/j.jelechem.2024.118213

Mutić T, Ognjanović M, Ivković Đ, Nikolić V, Stanković V, Ristivojević P, Stanković D. Improving gallic acid detection in plant samples: Fabrication and optimization of a sensitive and selective NiO-supported carbon paste electrode. in Journal of Electroanalytical Chemistry. 2024;960:118213.
doi:10.1016/j.jelechem.2024.118213 .

Mutić, Tijana, Ognjanović, Miloš, Ivković, Đurđa, Nikolić, Vladimir, Stanković, Vesna, Ristivojević, Petar, Stanković, Dalibor, "Improving gallic acid detection in plant samples: Fabrication and optimization of a sensitive and selective NiO-supported carbon paste electrode" in Journal of Electroanalytical Chemistry, 960 (2024):118213,
https://doi.org/10.1016/j.jelechem.2024.118213 . .

TY  - JOUR
AU  - Mutić, Tijana
AU  - Stanković, Dalibor M.
AU  - Manojlović, Dragan
AU  - Petrić, Đorđe
AU  - Pastor, Ferenc
AU  - Avdin, Vyacheslav V.
AU  - Ognjanović, Miloš
AU  - Stanković, Vesna
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13122
AB  - In this work, we successfully prepared a modified cobalt oxide (Co3O4) carbon paste electrode to detect Levofloxacin (LEV). By synthesizing Co3O4 nanoparticles through the chemical coprecipitation method, the electrochemical properties of the electrode and LEV were thoroughly investigated using CV, SWV, and EIS, while material properties were scrutinized using ICP-OES, TEM, SEM, and XRD. The results showed that the prepared electrode displayed a better electrocatalytic response than the bare carbon paste electrode. After optimizing SWV, the electrode exhibited a wide linear working range from 1 to 85 μM at pH 5 of BRBS as the supporting electrolyte. The selectivity of the proposed method was satisfactory, with good repeatability and reproducibility, strongly suggesting a potential application for determining LEV in real samples, particularly in pharmaceutical formulations. The practicality of the approach was demonstrated through good recoveries, and the morphology of the materials was found to be closely related to other parameters, indicating that the developed method can provide a cost-effective, rapid, selective, and sensitive means for LEV monitoring. Overall, this project has made significant progress towards developing a reliable method for detecting LEV and has opened up new opportunities for future research in this field.
T2  - Electrochem
T1  - Micromolar Levofloxacin Sensor by Incorporating Highly Crystalline Co3O4 into a Carbon Paste Electrode Structure
VL  - 5
IS  - 1
SP  - 45
EP  - 56
DO  - 10.3390/electrochem5010003
ER  - 

@article{
author = "Mutić, Tijana and Stanković, Dalibor M. and Manojlović, Dragan and Petrić, Đorđe and Pastor, Ferenc and Avdin, Vyacheslav V. and Ognjanović, Miloš and Stanković, Vesna",
year = "2024",
abstract = "In this work, we successfully prepared a modified cobalt oxide (Co3O4) carbon paste electrode to detect Levofloxacin (LEV). By synthesizing Co3O4 nanoparticles through the chemical coprecipitation method, the electrochemical properties of the electrode and LEV were thoroughly investigated using CV, SWV, and EIS, while material properties were scrutinized using ICP-OES, TEM, SEM, and XRD. The results showed that the prepared electrode displayed a better electrocatalytic response than the bare carbon paste electrode. After optimizing SWV, the electrode exhibited a wide linear working range from 1 to 85 μM at pH 5 of BRBS as the supporting electrolyte. The selectivity of the proposed method was satisfactory, with good repeatability and reproducibility, strongly suggesting a potential application for determining LEV in real samples, particularly in pharmaceutical formulations. The practicality of the approach was demonstrated through good recoveries, and the morphology of the materials was found to be closely related to other parameters, indicating that the developed method can provide a cost-effective, rapid, selective, and sensitive means for LEV monitoring. Overall, this project has made significant progress towards developing a reliable method for detecting LEV and has opened up new opportunities for future research in this field.",
journal = "Electrochem",
title = "Micromolar Levofloxacin Sensor by Incorporating Highly Crystalline Co3O4 into a Carbon Paste Electrode Structure",
volume = "5",
number = "1",
pages = "45-56",
doi = "10.3390/electrochem5010003"
}

Mutić, T., Stanković, D. M., Manojlović, D., Petrić, Đ., Pastor, F., Avdin, V. V., Ognjanović, M.,& Stanković, V.. (2024). Micromolar Levofloxacin Sensor by Incorporating Highly Crystalline Co3O4 into a Carbon Paste Electrode Structure. in Electrochem, 5(1), 45-56.
https://doi.org/10.3390/electrochem5010003

Mutić T, Stanković DM, Manojlović D, Petrić Đ, Pastor F, Avdin VV, Ognjanović M, Stanković V. Micromolar Levofloxacin Sensor by Incorporating Highly Crystalline Co3O4 into a Carbon Paste Electrode Structure. in Electrochem. 2024;5(1):45-56.
doi:10.3390/electrochem5010003 .

Mutić, Tijana, Stanković, Dalibor M., Manojlović, Dragan, Petrić, Đorđe, Pastor, Ferenc, Avdin, Vyacheslav V., Ognjanović, Miloš, Stanković, Vesna, "Micromolar Levofloxacin Sensor by Incorporating Highly Crystalline Co3O4 into a Carbon Paste Electrode Structure" in Electrochem, 5, no. 1 (2024):45-56,
https://doi.org/10.3390/electrochem5010003 . .

TY  - JOUR
AU  - Milikić, Jadranka
AU  - Nastasić, Ana
AU  - Rakočević, Lazar
AU  - Radinović, Kristina
AU  - Stojadinović, Stevan
AU  - Stanković, Dalibor
AU  - Šljukić, Biljana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13174
AB  - Three different iron-based electrocatalysts deposited on reduced graphene oxide (Fe/rGO, FeNi/rGO, and FeCu/ rGO) were synthesized and examined for oxygen reduction and evolution reactions (ORR and OER, respectively) in alkaline media. X-ray powder diffraction analysis, Fourier transform infrared spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy were used for a thorough investigation of physico-chemical properties of FeM/rGO electrocatalysts. XPS analysis indicated the presence of transition metals in higher oxidation states. Onset potentials during OER were found to be 1.51, 1.64, and 1.71 V for FeNi/rGO, FeCu/rGO, and Fe/rGO, respectively. Moreover, FeNi/rGO showed the highest OER current density (~40 mA cm benchmark OER electrocatalyst, IrO 2 2 at 2 V), two times higher than the -1 , and the lowest Tafel slope (88 mV dec ), lower than IrO . The somewhat better catalytic activity of Fe/rGO for ORR in alkaline media compared to FeNi/rGO and FeCu/rGO was noticed. Tafel slopes of 105, 112, and 113 mV dec 2-1 during ORR were found for Fe/rGO, FeCu/rGO, and FeNi/rGO, respectively. Almost constant ORR current densities during chronoamperometric measurements were noticed for Fe/rGO and FeCu/rGO indicating stable performance.
T2  - Fuel
T1  - FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode
VL  - 368
SP  - 131654
DO  - 10.1016/j.fuel.2024.131654
ER  - 

@article{
author = "Milikić, Jadranka and Nastasić, Ana and Rakočević, Lazar and Radinović, Kristina and Stojadinović, Stevan and Stanković, Dalibor and Šljukić, Biljana",
year = "2024",
abstract = "Three different iron-based electrocatalysts deposited on reduced graphene oxide (Fe/rGO, FeNi/rGO, and FeCu/ rGO) were synthesized and examined for oxygen reduction and evolution reactions (ORR and OER, respectively) in alkaline media. X-ray powder diffraction analysis, Fourier transform infrared spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy were used for a thorough investigation of physico-chemical properties of FeM/rGO electrocatalysts. XPS analysis indicated the presence of transition metals in higher oxidation states. Onset potentials during OER were found to be 1.51, 1.64, and 1.71 V for FeNi/rGO, FeCu/rGO, and Fe/rGO, respectively. Moreover, FeNi/rGO showed the highest OER current density (~40 mA cm benchmark OER electrocatalyst, IrO 2 2 at 2 V), two times higher than the -1 , and the lowest Tafel slope (88 mV dec ), lower than IrO . The somewhat better catalytic activity of Fe/rGO for ORR in alkaline media compared to FeNi/rGO and FeCu/rGO was noticed. Tafel slopes of 105, 112, and 113 mV dec 2-1 during ORR were found for Fe/rGO, FeCu/rGO, and FeNi/rGO, respectively. Almost constant ORR current densities during chronoamperometric measurements were noticed for Fe/rGO and FeCu/rGO indicating stable performance.",
journal = "Fuel",
title = "FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode",
volume = "368",
pages = "131654",
doi = "10.1016/j.fuel.2024.131654"
}

Milikić, J., Nastasić, A., Rakočević, L., Radinović, K., Stojadinović, S., Stanković, D.,& Šljukić, B.. (2024). FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode. in Fuel, 368, 131654.
https://doi.org/10.1016/j.fuel.2024.131654

Milikić J, Nastasić A, Rakočević L, Radinović K, Stojadinović S, Stanković D, Šljukić B. FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode. in Fuel. 2024;368:131654.
doi:10.1016/j.fuel.2024.131654 .

Milikić, Jadranka, Nastasić, Ana, Rakočević, Lazar, Radinović, Kristina, Stojadinović, Stevan, Stanković, Dalibor, Šljukić, Biljana, "FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode" in Fuel, 368 (2024):131654,
https://doi.org/10.1016/j.fuel.2024.131654 . .

TY  - JOUR
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
AU  - Pavlović, Vladimir
AU  - Mirković, Miljana
AU  - Vrbica, Boško
AU  - Novaković, Irena
AU  - Stanković, Dalibor
AU  - Kremenović, Aleksandar
AU  - Uskoković, Vuk
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13175
AB  - Metals and metal oxides have subpar antibacterial activities compared to those of small-molecule antibiotics, yet there are hopes that with proper compositional and structural adjustments this gap might be bridged. In this study, titanium dioxide (TiO2) nanoparticles were mechanically activated and combined with particulate silver through simple reduction process elicited by UV irradiation and assisted with the ultrasound. The resulting powders in various combinations (Ag vs. no Ag, activated vs. non-activated) were characterized using a range of experimental techniques and assessed for their antibacterial activities. The preparation procedure presented in this work prevails over the disadvantages of many chemical routes, most critically by avoiding the use of toxic substances. The mechanical activation did not reduce the particle size or crystallinity of TiO2 nor did it consistently alter the bandgap, yet it enabled the doubling of the amount of silver incorporable into the material. Further, while both mechanical activation and the addition of silver in the amount not exceeding 0.5 wt% produced barely detectable structural changes in the material, they both augmented its antibacterial activity. The precursor TiO2 powder produced no inhibition zone against any of the four bacterial species tested, while the mechanical activation of TiO2 led to the formation of distinct inhibition zones against each of the four bacterial species tested. The addition of silver to activated TiO2 further widened the inhibition zones and it also imparted the antibacterial activity to non-activated TiO2. The boost in the antibacterial activity achieved by the short mechanical activation was of a similar magnitude as the boost obtained after the addition of silver. The antibacterial activity was not different for different species when no silver was added to the system. However, with the addition of silver, species selectivity was obtained, as the composites were more effective against the two Gram-negative species (Escherichia coli and Klebsiella pneumoniae) than against the two Gram-positive ones (Staphylococcus aureus and Bacillus subtilis). The antibacterial activity increased with the addition of silver in the broth assay, but it was mediocre compared to that detected in the agar assay, attesting to the poor dispersability of the powders and their best performance when the bacterial cells migrate to the composite surface than vice versa. The findings of this study give hope that with appropriate microstructural or compositional alterations, the antibacterial activity of metal oxide powders and inorganic materials in general can be made comparable to that of small-molecule antibiotics.
T2  - Colloids and Surfaces A: Physicochemical and Engineering Aspects
T1  - Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles
VL  - 691
SP  - 133890
DO  - 10.1016/j.colsurfa.2024.133890
ER  - 

@article{
author = "Anđelković, Ljubica and Šuljagić, Marija and Pavlović, Vladimir and Mirković, Miljana and Vrbica, Boško and Novaković, Irena and Stanković, Dalibor and Kremenović, Aleksandar and Uskoković, Vuk",
year = "2024",
abstract = "Metals and metal oxides have subpar antibacterial activities compared to those of small-molecule antibiotics, yet there are hopes that with proper compositional and structural adjustments this gap might be bridged. In this study, titanium dioxide (TiO2) nanoparticles were mechanically activated and combined with particulate silver through simple reduction process elicited by UV irradiation and assisted with the ultrasound. The resulting powders in various combinations (Ag vs. no Ag, activated vs. non-activated) were characterized using a range of experimental techniques and assessed for their antibacterial activities. The preparation procedure presented in this work prevails over the disadvantages of many chemical routes, most critically by avoiding the use of toxic substances. The mechanical activation did not reduce the particle size or crystallinity of TiO2 nor did it consistently alter the bandgap, yet it enabled the doubling of the amount of silver incorporable into the material. Further, while both mechanical activation and the addition of silver in the amount not exceeding 0.5 wt% produced barely detectable structural changes in the material, they both augmented its antibacterial activity. The precursor TiO2 powder produced no inhibition zone against any of the four bacterial species tested, while the mechanical activation of TiO2 led to the formation of distinct inhibition zones against each of the four bacterial species tested. The addition of silver to activated TiO2 further widened the inhibition zones and it also imparted the antibacterial activity to non-activated TiO2. The boost in the antibacterial activity achieved by the short mechanical activation was of a similar magnitude as the boost obtained after the addition of silver. The antibacterial activity was not different for different species when no silver was added to the system. However, with the addition of silver, species selectivity was obtained, as the composites were more effective against the two Gram-negative species (Escherichia coli and Klebsiella pneumoniae) than against the two Gram-positive ones (Staphylococcus aureus and Bacillus subtilis). The antibacterial activity increased with the addition of silver in the broth assay, but it was mediocre compared to that detected in the agar assay, attesting to the poor dispersability of the powders and their best performance when the bacterial cells migrate to the composite surface than vice versa. The findings of this study give hope that with appropriate microstructural or compositional alterations, the antibacterial activity of metal oxide powders and inorganic materials in general can be made comparable to that of small-molecule antibiotics.",
journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",
title = "Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles",
volume = "691",
pages = "133890",
doi = "10.1016/j.colsurfa.2024.133890"
}

Anđelković, L., Šuljagić, M., Pavlović, V., Mirković, M., Vrbica, B., Novaković, I., Stanković, D., Kremenović, A.,& Uskoković, V.. (2024). Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles. in Colloids and Surfaces A: Physicochemical and Engineering Aspects, 691, 133890.
https://doi.org/10.1016/j.colsurfa.2024.133890

Anđelković L, Šuljagić M, Pavlović V, Mirković M, Vrbica B, Novaković I, Stanković D, Kremenović A, Uskoković V. Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles. in Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2024;691:133890.
doi:10.1016/j.colsurfa.2024.133890 .

Anđelković, Ljubica, Šuljagić, Marija, Pavlović, Vladimir, Mirković, Miljana, Vrbica, Boško, Novaković, Irena, Stanković, Dalibor, Kremenović, Aleksandar, Uskoković, Vuk, "Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles" in Colloids and Surfaces A: Physicochemical and Engineering Aspects, 691 (2024):133890,
https://doi.org/10.1016/j.colsurfa.2024.133890 . .

TY  - JOUR
AU  - Mušović, Jasmina
AU  - Tekić, Danijela
AU  - Marić, Slađana
AU  - Jocić, Ana
AU  - Stanković, Dalibor
AU  - Dimitrijević, Aleksandra
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13218
AB  - The consistent expansion of the lithium-ion battery (LIB) market, coupled with their relatively brief lifespan, necessitates the development of efficient and sustainable LIB recycling strategies. Recycling is crucial not only for the recovery of critical metals like Co(II) and Li(I) from the cathode material as a secondary resource but also from an environmental perspective. This study explores the use of a series of aqueous biphasic systems (ABS) with synthesized tetrabutylphosphonium ionic liquids (ILs) and ammonium sulfate as extraction platforms for metals from LIB cathode. Firstly, liquid–liquid equilibrium phase diagrams for each ABS were established, and partitioning experiments were conducted to assess the Co(II), Ni(II), Mn(II), and Li(I) recovery efficiencies. We observed distinct partitioning behaviors for the metals, with tetrabutylphosphonium diethylenetriaminepentaacetate, [TBP][DTPA], showing recovery efficiencies exceeding 98% for Co(II), Ni(II), and Mn(II). At the same time, Li(I) was predominantly retained in the aqueous salt-rich phase. By fine-tuning ABS operational parameters such as pH, temperature, system composition, and phase ratio, we identified optimal conditions for extracting metals from the cathode material of lithium-cobalt-oxide (LCO) batteries using sulfate lixiviate. Introducing [TBP][DTPA] after the leaching process induced ABS, achieving remarkable recovery efficiency over 95% for Co(II) in the IL-rich phase, with all Li(I) remaining in the lower phase. Cobalt was subsequently extracted using oxalic acid to precipitate as Co-oxalate from concentrate, while Li(I) was isolated from the aqueous phase using ammonium carbonate. After the “cleaning” of the IL-rich phase, the [TBP][DTPA] was recovered and reused in four consecutive cycles, with small detected losses on the recovery efficiency of Co(II) and Li(I). Therefore, our innovative strategy combines sulfate-based lixiviants with IL-ABS technology, thereby enhancing selectivity and sustainability within one of the most efficient lixiviant systems widely employed in the industry. This technological advancement presents a promising pathway for the recycling of spent batteries, offering substantial environmental advantages within the well-established and extensively utilized realm of metal recovery technology in the industry.
T2  - Separation and Purification Technology
T1  - Sustainable recovery of cobalt and lithium from lithium-ion battery cathode material by combining sulfate leachates and aqueous biphasic systems based on tetrabutylphosphonium-ionic liquids
VL  - 348
SP  - 127707
DO  - 10.1016/j.seppur.2024.127707
ER  - 

@article{
author = "Mušović, Jasmina and Tekić, Danijela and Marić, Slađana and Jocić, Ana and Stanković, Dalibor and Dimitrijević, Aleksandra",
year = "2024",
abstract = "The consistent expansion of the lithium-ion battery (LIB) market, coupled with their relatively brief lifespan, necessitates the development of efficient and sustainable LIB recycling strategies. Recycling is crucial not only for the recovery of critical metals like Co(II) and Li(I) from the cathode material as a secondary resource but also from an environmental perspective. This study explores the use of a series of aqueous biphasic systems (ABS) with synthesized tetrabutylphosphonium ionic liquids (ILs) and ammonium sulfate as extraction platforms for metals from LIB cathode. Firstly, liquid–liquid equilibrium phase diagrams for each ABS were established, and partitioning experiments were conducted to assess the Co(II), Ni(II), Mn(II), and Li(I) recovery efficiencies. We observed distinct partitioning behaviors for the metals, with tetrabutylphosphonium diethylenetriaminepentaacetate, [TBP][DTPA], showing recovery efficiencies exceeding 98% for Co(II), Ni(II), and Mn(II). At the same time, Li(I) was predominantly retained in the aqueous salt-rich phase. By fine-tuning ABS operational parameters such as pH, temperature, system composition, and phase ratio, we identified optimal conditions for extracting metals from the cathode material of lithium-cobalt-oxide (LCO) batteries using sulfate lixiviate. Introducing [TBP][DTPA] after the leaching process induced ABS, achieving remarkable recovery efficiency over 95% for Co(II) in the IL-rich phase, with all Li(I) remaining in the lower phase. Cobalt was subsequently extracted using oxalic acid to precipitate as Co-oxalate from concentrate, while Li(I) was isolated from the aqueous phase using ammonium carbonate. After the “cleaning” of the IL-rich phase, the [TBP][DTPA] was recovered and reused in four consecutive cycles, with small detected losses on the recovery efficiency of Co(II) and Li(I). Therefore, our innovative strategy combines sulfate-based lixiviants with IL-ABS technology, thereby enhancing selectivity and sustainability within one of the most efficient lixiviant systems widely employed in the industry. This technological advancement presents a promising pathway for the recycling of spent batteries, offering substantial environmental advantages within the well-established and extensively utilized realm of metal recovery technology in the industry.",
journal = "Separation and Purification Technology",
title = "Sustainable recovery of cobalt and lithium from lithium-ion battery cathode material by combining sulfate leachates and aqueous biphasic systems based on tetrabutylphosphonium-ionic liquids",
volume = "348",
pages = "127707",
doi = "10.1016/j.seppur.2024.127707"
}

Mušović, J., Tekić, D., Marić, S., Jocić, A., Stanković, D.,& Dimitrijević, A.. (2024). Sustainable recovery of cobalt and lithium from lithium-ion battery cathode material by combining sulfate leachates and aqueous biphasic systems based on tetrabutylphosphonium-ionic liquids. in Separation and Purification Technology, 348, 127707.
https://doi.org/10.1016/j.seppur.2024.127707

Mušović J, Tekić D, Marić S, Jocić A, Stanković D, Dimitrijević A. Sustainable recovery of cobalt and lithium from lithium-ion battery cathode material by combining sulfate leachates and aqueous biphasic systems based on tetrabutylphosphonium-ionic liquids. in Separation and Purification Technology. 2024;348:127707.
doi:10.1016/j.seppur.2024.127707 .

Mušović, Jasmina, Tekić, Danijela, Marić, Slađana, Jocić, Ana, Stanković, Dalibor, Dimitrijević, Aleksandra, "Sustainable recovery of cobalt and lithium from lithium-ion battery cathode material by combining sulfate leachates and aqueous biphasic systems based on tetrabutylphosphonium-ionic liquids" in Separation and Purification Technology, 348 (2024):127707,
https://doi.org/10.1016/j.seppur.2024.127707 . .

TY  - JOUR
AU  - Gusmão, Filipe M.B.
AU  - Đurić, Teodora
AU  - Milikić, Jadranka
AU  - Radinović, Kristina
AU  - Santos, Diogo M.F.
AU  - Stanković, Dalibor
AU  - Šljukić, Biljana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13294
AB  - The potential of polyoxometalates (POMs) as alternatives to noble metal-based bifunctional electrocatalysts for air electrode, i.e., for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), was analyzed herein. Five POMs containing transition metal (Mn, Fe, Co, Ni, or Cu) were prepared and combined with reduced graphene oxide (rGO). Kenning structure of POMs with nanolamellae-like morphology and multi-layered graphene sheets of rGO were confirmed by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy with energy dispersive X-ray spectroscopy, transmission electron microscopy and Raman spectroscopy analysis. Different POM:rGO ratios were tested to optimize the composition, and a ratio of 1:5 Ni- POM:rGO was found to be the most electrocatalytically active for OER (Tafel slope as low as 42 mV dec 1, overpotential at 10 mA cm2 of 354 mV and current density at 400 mV overpotential as high as 83.4 mA cm2), notably better than IrO2. As for ORR, Co-POM/rGO carried the lowest Tafel slope of 165 mV dec 1, half-wave potential of 0.711 V and a mixed 2- and 4-electron ORR mechanism. Moreover, these non-precious metal electrocatalysts showed stability in alkaline media with no change in their structure.
T2  - International Journal of Hydrogen Energy
T1  - Transition metal polyoxometalates with reduced graphene oxide for high-performance air-electrode of metal-air batteries
VL  - 71
SP  - 763
EP  - 774
DO  - 10.1016/j.ijhydene.2024.05.229
ER  - 

@article{
author = "Gusmão, Filipe M.B. and Đurić, Teodora and Milikić, Jadranka and Radinović, Kristina and Santos, Diogo M.F. and Stanković, Dalibor and Šljukić, Biljana",
year = "2024",
abstract = "The potential of polyoxometalates (POMs) as alternatives to noble metal-based bifunctional electrocatalysts for air electrode, i.e., for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), was analyzed herein. Five POMs containing transition metal (Mn, Fe, Co, Ni, or Cu) were prepared and combined with reduced graphene oxide (rGO). Kenning structure of POMs with nanolamellae-like morphology and multi-layered graphene sheets of rGO were confirmed by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy with energy dispersive X-ray spectroscopy, transmission electron microscopy and Raman spectroscopy analysis. Different POM:rGO ratios were tested to optimize the composition, and a ratio of 1:5 Ni- POM:rGO was found to be the most electrocatalytically active for OER (Tafel slope as low as 42 mV dec 1, overpotential at 10 mA cm2 of 354 mV and current density at 400 mV overpotential as high as 83.4 mA cm2), notably better than IrO2. As for ORR, Co-POM/rGO carried the lowest Tafel slope of 165 mV dec 1, half-wave potential of 0.711 V and a mixed 2- and 4-electron ORR mechanism. Moreover, these non-precious metal electrocatalysts showed stability in alkaline media with no change in their structure.",
journal = "International Journal of Hydrogen Energy",
title = "Transition metal polyoxometalates with reduced graphene oxide for high-performance air-electrode of metal-air batteries",
volume = "71",
pages = "763-774",
doi = "10.1016/j.ijhydene.2024.05.229"
}

Gusmão, F. M.B., Đurić, T., Milikić, J., Radinović, K., Santos, D. M.F., Stanković, D.,& Šljukić, B.. (2024). Transition metal polyoxometalates with reduced graphene oxide for high-performance air-electrode of metal-air batteries. in International Journal of Hydrogen Energy, 71, 763-774.
https://doi.org/10.1016/j.ijhydene.2024.05.229

Gusmão FM, Đurić T, Milikić J, Radinović K, Santos DM, Stanković D, Šljukić B. Transition metal polyoxometalates with reduced graphene oxide for high-performance air-electrode of metal-air batteries. in International Journal of Hydrogen Energy. 2024;71:763-774.
doi:10.1016/j.ijhydene.2024.05.229 .

Gusmão, Filipe M.B., Đurić, Teodora, Milikić, Jadranka, Radinović, Kristina, Santos, Diogo M.F., Stanković, Dalibor, Šljukić, Biljana, "Transition metal polyoxometalates with reduced graphene oxide for high-performance air-electrode of metal-air batteries" in International Journal of Hydrogen Energy, 71 (2024):763-774,
https://doi.org/10.1016/j.ijhydene.2024.05.229 . .

Stamenković, T., Zdolšek, N., Vujković, M., Brković, S., Perović, I.,& Lojpur, V.. (2024-0). Boosting electrochemical energy storage properties of SrGd2O4 through Yb3+ and Tm3+ rare earth ion doping. in Electrochimica Acta, 495, 144489.
https://doi.org/10.1016/j.electacta.2024.144489

Stamenković T, Zdolšek N, Vujković M, Brković S, Perović I, Lojpur V. Boosting electrochemical energy storage properties of SrGd2O4 through Yb3+ and Tm3+ rare earth ion doping. in Electrochimica Acta. 2024;495:144489.
doi:10.1016/j.electacta.2024.144489 .

Stamenković, Tijana, Zdolšek, Nikola, Vujković, Milica, Brković, Snežana, Perović, Ivana, Lojpur, Vesna, "Boosting electrochemical energy storage properties of SrGd2O4 through Yb3+ and Tm3+ rare earth ion doping" in Electrochimica Acta, 495 (2024-0):144489,
https://doi.org/10.1016/j.electacta.2024.144489 . .

TY  - JOUR
AU  - Veljković, Filip
AU  - Dodevski, Vladimir
AU  - Marinović-Cincović, Milena
AU  - Veličković, Suzana
AU  - Janković, Bojan Ž.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13292
AB  - This study is focused on the detailed examination of the combustion properties and kinetic analysis of a cellulose acetate fibrous bundle (CAFB), separated from used cigarette filters. It was shown that the faster rate of CAFB heating allows a large amount of heat to be supplied to a combustion system in the initial stages, where the increase in heating rate has a positive response to ignition behavior. The best combustion stability of CAFB is achieved at the lowest heating rate. Through the use of different kinetic methods, it was shown that combustion takes place through two series of consecutive reaction steps and one independent single-step reaction. By optimizing the kinetic parameters within the proposed reaction models, it was found that the steps related to the generation of levoglucosenone (LGO) (by catalytic dehydration of levoglucosan (LG)) and acrolein (by breakdown of glycerol during CAFB burning—which was carried out through glycerol adsorption on a TiO2 surface in a the developed dehydration mechanism) represent rate-controlling steps, which are strongly controlled by applied heating rate. Isothermal predictions have shown that CAFB manifests very good long-term stability at 60 °C (which corresponds to storage in a sea shipping container), while at 200 °C, it shows a sudden loss in thermal stability, which is related to the physical properties of the sample.
T2  - Polymers
T1  - Combustion Behavior of Cellulose Ester Fibrous Bundles from Used Cigarette Filters: Kinetic Analysis Study
VL  - 16
IS  - 11
SP  - 1480
DO  - 10.3390/polym16111480
ER  - 

@article{
author = "Veljković, Filip and Dodevski, Vladimir and Marinović-Cincović, Milena and Veličković, Suzana and Janković, Bojan Ž.",
year = "2024",
abstract = "This study is focused on the detailed examination of the combustion properties and kinetic analysis of a cellulose acetate fibrous bundle (CAFB), separated from used cigarette filters. It was shown that the faster rate of CAFB heating allows a large amount of heat to be supplied to a combustion system in the initial stages, where the increase in heating rate has a positive response to ignition behavior. The best combustion stability of CAFB is achieved at the lowest heating rate. Through the use of different kinetic methods, it was shown that combustion takes place through two series of consecutive reaction steps and one independent single-step reaction. By optimizing the kinetic parameters within the proposed reaction models, it was found that the steps related to the generation of levoglucosenone (LGO) (by catalytic dehydration of levoglucosan (LG)) and acrolein (by breakdown of glycerol during CAFB burning—which was carried out through glycerol adsorption on a TiO2 surface in a the developed dehydration mechanism) represent rate-controlling steps, which are strongly controlled by applied heating rate. Isothermal predictions have shown that CAFB manifests very good long-term stability at 60 °C (which corresponds to storage in a sea shipping container), while at 200 °C, it shows a sudden loss in thermal stability, which is related to the physical properties of the sample.",
journal = "Polymers",
title = "Combustion Behavior of Cellulose Ester Fibrous Bundles from Used Cigarette Filters: Kinetic Analysis Study",
volume = "16",
number = "11",
pages = "1480",
doi = "10.3390/polym16111480"
}

Veljković, F., Dodevski, V., Marinović-Cincović, M., Veličković, S.,& Janković, B. Ž.. (2024). Combustion Behavior of Cellulose Ester Fibrous Bundles from Used Cigarette Filters: Kinetic Analysis Study. in Polymers, 16(11), 1480.
https://doi.org/10.3390/polym16111480

Veljković F, Dodevski V, Marinović-Cincović M, Veličković S, Janković BŽ. Combustion Behavior of Cellulose Ester Fibrous Bundles from Used Cigarette Filters: Kinetic Analysis Study. in Polymers. 2024;16(11):1480.
doi:10.3390/polym16111480 .

Veljković, Filip, Dodevski, Vladimir, Marinović-Cincović, Milena, Veličković, Suzana, Janković, Bojan Ž., "Combustion Behavior of Cellulose Ester Fibrous Bundles from Used Cigarette Filters: Kinetic Analysis Study" in Polymers, 16, no. 11 (2024):1480,
https://doi.org/10.3390/polym16111480 . .

TY  - JOUR
AU  - Elhmali, Houda Taher
AU  - Stajčić, Ivana
AU  - Petrović, Miloš
AU  - Janković, Bojan
AU  - Simović, Bojana
AU  - Stajčić, Aleksandar
AU  - Radojević, Vesna
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13288
AB  - Since acrylate-based materials are widely used in dentistry, their drawbacks such as low impact resistance and hardness, require continuous research in the field of materials science in order to avoid sudden fracture caused by chewing or fall. In this study, auto-polymerizing poly(methyl methacrylate) (PMMA), commonly used as denture base material, was reinforced with poly(4-styrenesulfonic acid-co-maleic anhydride) sodium salt (PSSMA) and strontium titanate (STO), with the aim of improving impact behavior and microhardness. Morphological analysis confirmed formation of phase-separated and co-continuous microscopic structures of PSSMA in PMMA, without visible agglomerates of STO nanoparticles, indicating that PSSMA-STO interaction contributed to a better distribution of nanoparticles. Fourier transformed infrared spectroscopy revealed that PSSMA and STO did not interfere in the polymerization of methyl methacrylate. This was further supported by thermal analysis, which also showed that the addition of PSSMA and STO had no significant influence on thermal degradation. On the other side, PSSMA and STO significantly enhanced mechanical performance of PMMA. The modulus of elasticity increased by up to 48.6%, total absorbed impact energy improved by up to 108.4%, and microhardness increased by up to 272.8% when PSSMA was combined with STO for reinforcing denture PMMA. These results demonstrate the significant potential of PSSMA, which could be combined with other ceramic nanoparticles for denture reinforcement in the future. Highlights: This research presents novel dental hybrid composite. Influence of strontium titanate (STO) and poly(4-styrenesulfonic acid-co-maleic anhydride) sodium salt (PSSMA) on poly(methyl methacrylate) (PMMA) was investigated. PSSMA/STO improved modulus of elasticity, microhardness and impact resistance. Sample with 5 wt% PSSMA and 1 wt% STO showed the highest improvement compared to PMMA. Presented hybrid composite could use as denture base material.
T2  - Polymer Composites
T1  - Mechanical performance of denture acrylic resin modified with poly(4‐styrenesulfonic acid‐                                          co                                        ‐maleic anhydride) sodium salt and strontium titanate
DO  - 10.1002/pc.28574
ER  - 

@article{
author = "Elhmali, Houda Taher and Stajčić, Ivana and Petrović, Miloš and Janković, Bojan and Simović, Bojana and Stajčić, Aleksandar and Radojević, Vesna",
year = "2024",
abstract = "Since acrylate-based materials are widely used in dentistry, their drawbacks such as low impact resistance and hardness, require continuous research in the field of materials science in order to avoid sudden fracture caused by chewing or fall. In this study, auto-polymerizing poly(methyl methacrylate) (PMMA), commonly used as denture base material, was reinforced with poly(4-styrenesulfonic acid-co-maleic anhydride) sodium salt (PSSMA) and strontium titanate (STO), with the aim of improving impact behavior and microhardness. Morphological analysis confirmed formation of phase-separated and co-continuous microscopic structures of PSSMA in PMMA, without visible agglomerates of STO nanoparticles, indicating that PSSMA-STO interaction contributed to a better distribution of nanoparticles. Fourier transformed infrared spectroscopy revealed that PSSMA and STO did not interfere in the polymerization of methyl methacrylate. This was further supported by thermal analysis, which also showed that the addition of PSSMA and STO had no significant influence on thermal degradation. On the other side, PSSMA and STO significantly enhanced mechanical performance of PMMA. The modulus of elasticity increased by up to 48.6%, total absorbed impact energy improved by up to 108.4%, and microhardness increased by up to 272.8% when PSSMA was combined with STO for reinforcing denture PMMA. These results demonstrate the significant potential of PSSMA, which could be combined with other ceramic nanoparticles for denture reinforcement in the future. Highlights: This research presents novel dental hybrid composite. Influence of strontium titanate (STO) and poly(4-styrenesulfonic acid-co-maleic anhydride) sodium salt (PSSMA) on poly(methyl methacrylate) (PMMA) was investigated. PSSMA/STO improved modulus of elasticity, microhardness and impact resistance. Sample with 5 wt% PSSMA and 1 wt% STO showed the highest improvement compared to PMMA. Presented hybrid composite could use as denture base material.",
journal = "Polymer Composites",
title = "Mechanical performance of denture acrylic resin modified with poly(4‐styrenesulfonic acid‐                                          co                                        ‐maleic anhydride) sodium salt and strontium titanate",
doi = "10.1002/pc.28574"
}

Elhmali, H. T., Stajčić, I., Petrović, M., Janković, B., Simović, B., Stajčić, A.,& Radojević, V.. (2024). Mechanical performance of denture acrylic resin modified with poly(4‐styrenesulfonic acid‐                                          co                                        ‐maleic anhydride) sodium salt and strontium titanate. in Polymer Composites.
https://doi.org/10.1002/pc.28574

Elhmali HT, Stajčić I, Petrović M, Janković B, Simović B, Stajčić A, Radojević V. Mechanical performance of denture acrylic resin modified with poly(4‐styrenesulfonic acid‐                                          co                                        ‐maleic anhydride) sodium salt and strontium titanate. in Polymer Composites. 2024;.
doi:10.1002/pc.28574 .

Elhmali, Houda Taher, Stajčić, Ivana, Petrović, Miloš, Janković, Bojan, Simović, Bojana, Stajčić, Aleksandar, Radojević, Vesna, "Mechanical performance of denture acrylic resin modified with poly(4‐styrenesulfonic acid‐                                          co                                        ‐maleic anhydride) sodium salt and strontium titanate" in Polymer Composites (2024),
https://doi.org/10.1002/pc.28574 . .

TY  - JOUR
AU  - Paul, Anup
AU  - Gusmão, Filipe
AU  - Mahmoud, Abdallah G.
AU  - Hazra, Susanta
AU  - Rakočević, Lazar
AU  - Šljukić, Biljana
AU  - Khan, Rais Ahmad
AU  - Guedes da Silva, Fatima
AU  - Pombeiro, Armando J. L.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13286
AB  - We present the synthesis and characterization of two monometallic coordination polymers, [Co(L)2(H2O)2]n (Co-CP) and [Ni(L)2(H2O)2]n (Ni-CP), alongside a heterobimetallic counterpart, CoNi-CP, derived from an amide-based multifunctional pro-ligand 4-(pyrimidin-5-ylcarbamoyl)benzoic acid (HL), and discussed their electrocatalytic activity in the oxygen evolution reaction (OER). The CPs were characterized using various techniques, including elemental analysis, IR spectroscopy, X-ray diffraction, and thermal and powder XRD analyses. The low-cost amide-functionalized transition metal pristine coordination polymers Co-CP and Ni-CP were demonstrated to catalyze the OER in alkaline media, surpassing the benchmark IrO2 electrocatalyst performance. The heterometallic coordination polymer (CoNi-CP) displayed a lower Tafel slope value (and thus, faster kinetics) and higher long-term durability compared to its monometallic counterparts, Co-CP and Ni-CP. The results obtained show a pristine transition metal heterobimetallic coordination polymer as a low-cost electrocatalyst of great promise and high performance for OER catalysis in alkaline media.
T2  - CrystEngComm
T1  - Catalyzing towards clean energy: tuning the oxygen evolution reaction by amide-functionalized Co(                    ii                    ) and Ni(                    ii                    ) pristine coordination polymers
VL  - 26
IS  - 21
SP  - 2755
EP  - 2764
DO  - 10.1039/D4CE00179F
ER  - 

@article{
author = "Paul, Anup and Gusmão, Filipe and Mahmoud, Abdallah G. and Hazra, Susanta and Rakočević, Lazar and Šljukić, Biljana and Khan, Rais Ahmad and Guedes da Silva, Fatima and Pombeiro, Armando J. L.",
year = "2024",
abstract = "We present the synthesis and characterization of two monometallic coordination polymers, [Co(L)2(H2O)2]n (Co-CP) and [Ni(L)2(H2O)2]n (Ni-CP), alongside a heterobimetallic counterpart, CoNi-CP, derived from an amide-based multifunctional pro-ligand 4-(pyrimidin-5-ylcarbamoyl)benzoic acid (HL), and discussed their electrocatalytic activity in the oxygen evolution reaction (OER). The CPs were characterized using various techniques, including elemental analysis, IR spectroscopy, X-ray diffraction, and thermal and powder XRD analyses. The low-cost amide-functionalized transition metal pristine coordination polymers Co-CP and Ni-CP were demonstrated to catalyze the OER in alkaline media, surpassing the benchmark IrO2 electrocatalyst performance. The heterometallic coordination polymer (CoNi-CP) displayed a lower Tafel slope value (and thus, faster kinetics) and higher long-term durability compared to its monometallic counterparts, Co-CP and Ni-CP. The results obtained show a pristine transition metal heterobimetallic coordination polymer as a low-cost electrocatalyst of great promise and high performance for OER catalysis in alkaline media.",
journal = "CrystEngComm",
title = "Catalyzing towards clean energy: tuning the oxygen evolution reaction by amide-functionalized Co(                    ii                    ) and Ni(                    ii                    ) pristine coordination polymers",
volume = "26",
number = "21",
pages = "2755-2764",
doi = "10.1039/D4CE00179F"
}

Paul, A., Gusmão, F., Mahmoud, A. G., Hazra, S., Rakočević, L., Šljukić, B., Khan, R. A., Guedes da Silva, F.,& Pombeiro, A. J. L.. (2024). Catalyzing towards clean energy: tuning the oxygen evolution reaction by amide-functionalized Co(                    ii                    ) and Ni(                    ii                    ) pristine coordination polymers. in CrystEngComm, 26(21), 2755-2764.
https://doi.org/10.1039/D4CE00179F

Paul A, Gusmão F, Mahmoud AG, Hazra S, Rakočević L, Šljukić B, Khan RA, Guedes da Silva F, Pombeiro AJL. Catalyzing towards clean energy: tuning the oxygen evolution reaction by amide-functionalized Co(                    ii                    ) and Ni(                    ii                    ) pristine coordination polymers. in CrystEngComm. 2024;26(21):2755-2764.
doi:10.1039/D4CE00179F .

Paul, Anup, Gusmão, Filipe, Mahmoud, Abdallah G., Hazra, Susanta, Rakočević, Lazar, Šljukić, Biljana, Khan, Rais Ahmad, Guedes da Silva, Fatima, Pombeiro, Armando J. L., "Catalyzing towards clean energy: tuning the oxygen evolution reaction by amide-functionalized Co(                    ii                    ) and Ni(                    ii                    ) pristine coordination polymers" in CrystEngComm, 26, no. 21 (2024):2755-2764,
https://doi.org/10.1039/D4CE00179F . .

TY  - JOUR
AU  - Najdhefer, I.
AU  - Kapidžić, Ana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13284
AB  - This paper presents simulation predictions of electric field gradients (EFGs) and binding energies for two phases of ZrO 2 , cubic and tetragonal, when doped with small concentrations of Cd, Y, Y + Nb, and Y + Ta. The creation of oxygen vacancies in bulk is elucidated through ab-initio calculations. The focus is on EFGs as a function of the concentration of free oxygen vacancies with high accuracy. EFGs decrease as the oxygen vacancy trapping probability increases, dependent on vacancy concentration. The crucial factors are point defects. Radiation induced defects, which are traps of charge carriers are discussed. Trivalent Y concentration of oxygen vacancies in ZrO 2 3+ ions induce an increase in the , while Cd, Y + Ta, and Y + Nb dopants induce a decrease in the concentration of oxygen vacancies. A convenient polynomial dependence of the energy on inverse super-cell size, where wave-function overlap and electrostatic interactions bring about more complex dependencies on super-cell access, is presented here. We demonstrate that this complexity can be resolved using Chebyshev polynomials, which may include electron-phonon coupling.
T2  - Radiation Physics and Chemistry
T1  - Ab-initio calculations of cubic and tetragonal ZrO2 doped with Cd, Y, Y+Nb, Y+Ta- charge-compensating dopants: Structural and electrostatic calculations
VL  - 222
SP  - 111804
DO  - 10.1016/j.radphyschem.2024.111804
ER  - 

@article{
author = "Najdhefer, I. and Kapidžić, Ana",
year = "2024",
abstract = "This paper presents simulation predictions of electric field gradients (EFGs) and binding energies for two phases of ZrO 2 , cubic and tetragonal, when doped with small concentrations of Cd, Y, Y + Nb, and Y + Ta. The creation of oxygen vacancies in bulk is elucidated through ab-initio calculations. The focus is on EFGs as a function of the concentration of free oxygen vacancies with high accuracy. EFGs decrease as the oxygen vacancy trapping probability increases, dependent on vacancy concentration. The crucial factors are point defects. Radiation induced defects, which are traps of charge carriers are discussed. Trivalent Y concentration of oxygen vacancies in ZrO 2 3+ ions induce an increase in the , while Cd, Y + Ta, and Y + Nb dopants induce a decrease in the concentration of oxygen vacancies. A convenient polynomial dependence of the energy on inverse super-cell size, where wave-function overlap and electrostatic interactions bring about more complex dependencies on super-cell access, is presented here. We demonstrate that this complexity can be resolved using Chebyshev polynomials, which may include electron-phonon coupling.",
journal = "Radiation Physics and Chemistry",
title = "Ab-initio calculations of cubic and tetragonal ZrO2 doped with Cd, Y, Y+Nb, Y+Ta- charge-compensating dopants: Structural and electrostatic calculations",
volume = "222",
pages = "111804",
doi = "10.1016/j.radphyschem.2024.111804"
}

Najdhefer, I.,& Kapidžić, A.. (2024). Ab-initio calculations of cubic and tetragonal ZrO2 doped with Cd, Y, Y+Nb, Y+Ta- charge-compensating dopants: Structural and electrostatic calculations. in Radiation Physics and Chemistry, 222, 111804.
https://doi.org/10.1016/j.radphyschem.2024.111804

Najdhefer I, Kapidžić A. Ab-initio calculations of cubic and tetragonal ZrO2 doped with Cd, Y, Y+Nb, Y+Ta- charge-compensating dopants: Structural and electrostatic calculations. in Radiation Physics and Chemistry. 2024;222:111804.
doi:10.1016/j.radphyschem.2024.111804 .

Najdhefer, I., Kapidžić, Ana, "Ab-initio calculations of cubic and tetragonal ZrO2 doped with Cd, Y, Y+Nb, Y+Ta- charge-compensating dopants: Structural and electrostatic calculations" in Radiation Physics and Chemistry, 222 (2024):111804,
https://doi.org/10.1016/j.radphyschem.2024.111804 . .

TY  - JOUR
AU  - Jovanović, Milan
AU  - Radan, Milica
AU  - Čarapić, Marija
AU  - Filipović, Nenad
AU  - Nikolić, Katarina
AU  - Crevar, Milkica
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13287
AB  - Aim: This study aims to investigate the passive diffusion of protein kinase inhibitors through the blood–brain barrier (BBB) and to develop a model for their permeability prediction. Materials & methods: We used the parallel artificial membrane permeability assay to obtain logPe values of each of 34 compounds and calculated descriptors for these structures to perform quantitative structure–property relationship modeling, creating different regression models. Results: The logPe values have been calculated for all 34 compounds. Support vector machine regression was considered the most reliable, and CATS2D_09_DA, CATS2D_04_AA, B04[N-S] and F07[C-N] descriptors were identified as the most influential to passive BBB permeability. Conclusion: The quantitative structure–property relationship-support vector machine regression model that has been generated can serve as an efficient method for preliminary screening of BBB permeability of new analogs.
T2  - Future Medicinal Chemistry
T1  - Application of parallel artificial membrane permeability assay technique and chemometric modeling for blood–brain barrier permeability prediction of protein kinase inhibitors
SP  - 1
EP  - 13
DO  - 10.4155/fmc-2023-0390
ER  - 

@article{
author = "Jovanović, Milan and Radan, Milica and Čarapić, Marija and Filipović, Nenad and Nikolić, Katarina and Crevar, Milkica",
year = "2024",
abstract = "Aim: This study aims to investigate the passive diffusion of protein kinase inhibitors through the blood–brain barrier (BBB) and to develop a model for their permeability prediction. Materials & methods: We used the parallel artificial membrane permeability assay to obtain logPe values of each of 34 compounds and calculated descriptors for these structures to perform quantitative structure–property relationship modeling, creating different regression models. Results: The logPe values have been calculated for all 34 compounds. Support vector machine regression was considered the most reliable, and CATS2D_09_DA, CATS2D_04_AA, B04[N-S] and F07[C-N] descriptors were identified as the most influential to passive BBB permeability. Conclusion: The quantitative structure–property relationship-support vector machine regression model that has been generated can serve as an efficient method for preliminary screening of BBB permeability of new analogs.",
journal = "Future Medicinal Chemistry",
title = "Application of parallel artificial membrane permeability assay technique and chemometric modeling for blood–brain barrier permeability prediction of protein kinase inhibitors",
pages = "1-13",
doi = "10.4155/fmc-2023-0390"
}

Jovanović, M., Radan, M., Čarapić, M., Filipović, N., Nikolić, K.,& Crevar, M.. (2024). Application of parallel artificial membrane permeability assay technique and chemometric modeling for blood–brain barrier permeability prediction of protein kinase inhibitors. in Future Medicinal Chemistry, 1-13.
https://doi.org/10.4155/fmc-2023-0390

Jovanović M, Radan M, Čarapić M, Filipović N, Nikolić K, Crevar M. Application of parallel artificial membrane permeability assay technique and chemometric modeling for blood–brain barrier permeability prediction of protein kinase inhibitors. in Future Medicinal Chemistry. 2024;:1-13.
doi:10.4155/fmc-2023-0390 .

Jovanović, Milan, Radan, Milica, Čarapić, Marija, Filipović, Nenad, Nikolić, Katarina, Crevar, Milkica, "Application of parallel artificial membrane permeability assay technique and chemometric modeling for blood–brain barrier permeability prediction of protein kinase inhibitors" in Future Medicinal Chemistry (2024):1-13,
https://doi.org/10.4155/fmc-2023-0390 . .

TY  - JOUR
AU  - Milivojević, Marko
AU  - Orozović, Marko
AU  - Picozzi, Silvia
AU  - Gmitra, Martin
AU  - Stavrić, Srđan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13281
AB  - Gaining growing attention in spintronics is a class of magnets displaying zero net magnetization and spin-split electronic bands called altermagnets. Here, by combining density functional theory and symmetry analysis, we show that RuF4 monolayer is a two-dimensional (2D) d-wave altermagnet. Spin–orbit coupling leads to pronounced spin splitting of the electronic bands at the Γpoint by ∼100meVandturns the RuF4 into a weak ferromagnet due to nontrivial spin-momentum locking that cants the Ru magnetic moments. The net magnetic moment scales linearly with the spin–orbit coupling strength. Using group theory we derive an effective spin Hamiltonian capturing the spin-splitting and spin-momentum locking of the electronic bands. Disentanglement of the altermagnetic and spin–orbit coupling induced spin splitting uncovers to which extent the altermagnetic properties are affected by the spin–orbit coupling. Our results move the spotlight to the nontrivial spin-momentum locking and weak ferromagnetism in the 2D altermagnets relevant for novel venues in this emerging field of material science research.
T2  - 2D Materials
T1  - Interplay of altermagnetism and weak ferromagnetism in two-dimensional RuF4
VL  - 11
IS  - 3
SP  - 035025
DO  - 10.1088/2053-1583/ad4c73
ER  - 

@article{
author = "Milivojević, Marko and Orozović, Marko and Picozzi, Silvia and Gmitra, Martin and Stavrić, Srđan",
year = "2024",
abstract = "Gaining growing attention in spintronics is a class of magnets displaying zero net magnetization and spin-split electronic bands called altermagnets. Here, by combining density functional theory and symmetry analysis, we show that RuF4 monolayer is a two-dimensional (2D) d-wave altermagnet. Spin–orbit coupling leads to pronounced spin splitting of the electronic bands at the Γpoint by ∼100meVandturns the RuF4 into a weak ferromagnet due to nontrivial spin-momentum locking that cants the Ru magnetic moments. The net magnetic moment scales linearly with the spin–orbit coupling strength. Using group theory we derive an effective spin Hamiltonian capturing the spin-splitting and spin-momentum locking of the electronic bands. Disentanglement of the altermagnetic and spin–orbit coupling induced spin splitting uncovers to which extent the altermagnetic properties are affected by the spin–orbit coupling. Our results move the spotlight to the nontrivial spin-momentum locking and weak ferromagnetism in the 2D altermagnets relevant for novel venues in this emerging field of material science research.",
journal = "2D Materials",
title = "Interplay of altermagnetism and weak ferromagnetism in two-dimensional RuF4",
volume = "11",
number = "3",
pages = "035025",
doi = "10.1088/2053-1583/ad4c73"
}

Milivojević, M., Orozović, M., Picozzi, S., Gmitra, M.,& Stavrić, S.. (2024). Interplay of altermagnetism and weak ferromagnetism in two-dimensional RuF4. in 2D Materials, 11(3), 035025.
https://doi.org/10.1088/2053-1583/ad4c73

Milivojević M, Orozović M, Picozzi S, Gmitra M, Stavrić S. Interplay of altermagnetism and weak ferromagnetism in two-dimensional RuF4. in 2D Materials. 2024;11(3):035025.
doi:10.1088/2053-1583/ad4c73 .

Milivojević, Marko, Orozović, Marko, Picozzi, Silvia, Gmitra, Martin, Stavrić, Srđan, "Interplay of altermagnetism and weak ferromagnetism in two-dimensional RuF4" in 2D Materials, 11, no. 3 (2024):035025,
https://doi.org/10.1088/2053-1583/ad4c73 . .

TY  - JOUR
AU  - Chesnyak, Valeria
AU  - Stavrić, Srđan
AU  - Panighel, Mirco
AU  - Povoledo, Daniele
AU  - del Puppo, Simone
AU  - Peressi, Maria
AU  - Comelli, Giovanni
AU  - Africh, Cristina
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13282
AB  - To improve reactivity and achieve a higher material efficiency, catalysts are often used in the form of clusters with nanometer dimensions, down to single atoms. Since the corresponding properties are highly structure-dependent, a suitable support is thus required to ensure cluster stability during operating conditions. Herein, an efficient method to stabilize cobalt nanoclusters on graphene grown on nickel substrates, exploiting the anchoring effect of nickel atoms incorporated in the carbon network is presented. The anchored nanoclusters are studied by in situ variable temperature scanning tunneling microscopy at different temperatures and upon gas exposure. Cluster stability upon annealing up to 200 °C and upon CO exposure at least up to 1 × 10−6 mbar CO partial pressure is demonstrated. Moreover, the dimensions of the cobalt nanoclusters remain surprisingly small (<3 nm diameter) with a narrow size distribution. Density functional theory calculations demonstrate that the interplay between the low diffusion barrier on graphene on nickel and the strong anchoring effect of the nickel atoms leads to the increased stability and size selectivity of these clusters. This anchoring technique is expected to be applicable also to other cases, with clear advantages for transition metals that are usually difficult to stabilize.
T2  - Small Structures
T1  - Exceptionally Stable Cobalt Nanoclusters on Functionalized Graphene
SP  - 2400055
DO  - 10.1002/sstr.202400055
ER  - 

@article{
author = "Chesnyak, Valeria and Stavrić, Srđan and Panighel, Mirco and Povoledo, Daniele and del Puppo, Simone and Peressi, Maria and Comelli, Giovanni and Africh, Cristina",
year = "2024",
abstract = "To improve reactivity and achieve a higher material efficiency, catalysts are often used in the form of clusters with nanometer dimensions, down to single atoms. Since the corresponding properties are highly structure-dependent, a suitable support is thus required to ensure cluster stability during operating conditions. Herein, an efficient method to stabilize cobalt nanoclusters on graphene grown on nickel substrates, exploiting the anchoring effect of nickel atoms incorporated in the carbon network is presented. The anchored nanoclusters are studied by in situ variable temperature scanning tunneling microscopy at different temperatures and upon gas exposure. Cluster stability upon annealing up to 200 °C and upon CO exposure at least up to 1 × 10−6 mbar CO partial pressure is demonstrated. Moreover, the dimensions of the cobalt nanoclusters remain surprisingly small (<3 nm diameter) with a narrow size distribution. Density functional theory calculations demonstrate that the interplay between the low diffusion barrier on graphene on nickel and the strong anchoring effect of the nickel atoms leads to the increased stability and size selectivity of these clusters. This anchoring technique is expected to be applicable also to other cases, with clear advantages for transition metals that are usually difficult to stabilize.",
journal = "Small Structures",
title = "Exceptionally Stable Cobalt Nanoclusters on Functionalized Graphene",
pages = "2400055",
doi = "10.1002/sstr.202400055"
}

Chesnyak, V., Stavrić, S., Panighel, M., Povoledo, D., del Puppo, S., Peressi, M., Comelli, G.,& Africh, C.. (2024). Exceptionally Stable Cobalt Nanoclusters on Functionalized Graphene. in Small Structures, 2400055.
https://doi.org/10.1002/sstr.202400055

Chesnyak V, Stavrić S, Panighel M, Povoledo D, del Puppo S, Peressi M, Comelli G, Africh C. Exceptionally Stable Cobalt Nanoclusters on Functionalized Graphene. in Small Structures. 2024;:2400055.
doi:10.1002/sstr.202400055 .

Chesnyak, Valeria, Stavrić, Srđan, Panighel, Mirco, Povoledo, Daniele, del Puppo, Simone, Peressi, Maria, Comelli, Giovanni, Africh, Cristina, "Exceptionally Stable Cobalt Nanoclusters on Functionalized Graphene" in Small Structures (2024):2400055,
https://doi.org/10.1002/sstr.202400055 . .

TY  - JOUR
AU  - Vujković, Milica
AU  - Popović, Maja
AU  - Čebela, Maria
AU  - Jugović, Dragana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13285
AB  - Since LiFePO4 batteries play a major role in the transition to safe, more affordable and sustainable energy production, numerous strategies have been applied to modify LFP cathode, with the aim of improving its electrochemistry. In this contribution, a highly vanadium-doped LiFe0.9V0.1PO4/C composite (LFP/C-10V) is synthesized using the glycine combustion method and characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Thermogravimetry Differential Thermal Analysis (TGDTA) and Cyclic Voltammetry (CV). It is shown that 10wt.% of vanadium can substitute Fe positions, thus decreasing unit cell volume, which is followed by generation of Li3V2PO4 traces, as detected by CV. High vanadium doping does not change the carbon content in the composite (≈ 13 wt.%) but improves its electronic conductivity and electrochemical performance in both aqueous and organic electrolytes. The reversibility and current response are increasing following the trend: LFP/C, LFP/C -3mol%V, LFP/C - 5mol % and LFP/C-10 mol %. The best specific capacity is obtained for the most highly doped olivine, which exhibits a reversible process at 1 mV s-1 in an aqueous electrolyte, thus showing a peak-to-peak distance of 56 mV. The high capacity of LFPC-10V is measured in both LiNO3 and NaNO3 electrolytes amounting to around 100 mAh g-1 at 20 mV s-1. Still, the material is only stable in LiNO3 electrolyte, making it more suitable for Li than Na-ion aqueous rechargeable batteries.
T2  - Materials Research Express
T1  - Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries
VL  - 11
IS  - 5
SP  - 056301
DO  - 10.1088/2053-1591/ad3463
ER  - 

@article{
author = "Vujković, Milica and Popović, Maja and Čebela, Maria and Jugović, Dragana",
year = "2024",
abstract = "Since LiFePO4 batteries play a major role in the transition to safe, more affordable and sustainable energy production, numerous strategies have been applied to modify LFP cathode, with the aim of improving its electrochemistry. In this contribution, a highly vanadium-doped LiFe0.9V0.1PO4/C composite (LFP/C-10V) is synthesized using the glycine combustion method and characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Thermogravimetry Differential Thermal Analysis (TGDTA) and Cyclic Voltammetry (CV). It is shown that 10wt.% of vanadium can substitute Fe positions, thus decreasing unit cell volume, which is followed by generation of Li3V2PO4 traces, as detected by CV. High vanadium doping does not change the carbon content in the composite (≈ 13 wt.%) but improves its electronic conductivity and electrochemical performance in both aqueous and organic electrolytes. The reversibility and current response are increasing following the trend: LFP/C, LFP/C -3mol%V, LFP/C - 5mol % and LFP/C-10 mol %. The best specific capacity is obtained for the most highly doped olivine, which exhibits a reversible process at 1 mV s-1 in an aqueous electrolyte, thus showing a peak-to-peak distance of 56 mV. The high capacity of LFPC-10V is measured in both LiNO3 and NaNO3 electrolytes amounting to around 100 mAh g-1 at 20 mV s-1. Still, the material is only stable in LiNO3 electrolyte, making it more suitable for Li than Na-ion aqueous rechargeable batteries.",
journal = "Materials Research Express",
title = "Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries",
volume = "11",
number = "5",
pages = "056301",
doi = "10.1088/2053-1591/ad3463"
}

Vujković, M., Popović, M., Čebela, M.,& Jugović, D.. (2024). Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries. in Materials Research Express, 11(5), 056301.
https://doi.org/10.1088/2053-1591/ad3463

Vujković M, Popović M, Čebela M, Jugović D. Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries. in Materials Research Express. 2024;11(5):056301.
doi:10.1088/2053-1591/ad3463 .

Vujković, Milica, Popović, Maja, Čebela, Maria, Jugović, Dragana, "Heavily vanadium-doped LiFePO4 olivine as electrode material for Li-ion aqueous rechargeable batteries" in Materials Research Express, 11, no. 5 (2024):056301,
https://doi.org/10.1088/2053-1591/ad3463 . .

TY  - JOUR
AU  - Elhmali, Houda Taher
AU  - Stajčić, Ivana
AU  - Stajčić, Aleksandar
AU  - Pešić, Ivan
AU  - Jovanović, Marija
AU  - Petrović, Miloš
AU  - Radojević, Vesna
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12718
AB  - While dental poly methyl methacrylate(PMMA) possesses distinctive qualities such as ease of fabrication, cost-effectiveness, and favorable physical and mechanical properties, these attributes alone are inadequate to impart the necessary impact strength and hardness. Consequently, pure PMMA is less suitable for dental applications. This research focused on the incorporation of Strontium titanate (SrTiO3-STO) and hybrid filler STO/Manganese oxide (MnO2) to improve impact resistance and hardness. The potential of STO in reinforcing PMMA is poorly investigated, while hybrid filler STO/MnO2 has not been presented yet. Differential scanning calorimetry is conducted in order to investigate the agglomeration influence on the PMMA glass transition temperature (Tg), as well as the leaching of residual monomer and volatile additives that could pose a threat to human health. It has been determined that agglomeration with 1 wt% loading had no influence on Tg, while the first scan revealed differences in evaporation of small molecules, in favor of composite PMMA-STO/MnO2, which showed the trapping potential of volatiles. Investigations of mechanical properties have revealed the significant influence of hybrid STO/MnO2 filler on microhardness and total absorbed impact energy, which were increased by 89.9% and 145.4%, respectively. Results presented in this study revealed the reinforcing potential of hybrid nanoparticles that could find application in other polymers as well.
T2  - Polymers
T1  - Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior
VL  - 16
IS  - 2
SP  - 278
DO  - 10.3390/polym16020278
ER  - 

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

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

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

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

TY  - JOUR
AU  - Taboun, Abdulrraouf
AU  - Jovanović, Marija
AU  - Petrović, Miloš
AU  - Stajčić, Ivana
AU  - Pešić, Ivan
AU  - Stojanović, Dušica B.
AU  - Radojević, Vesna
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13220
AB  - The aim of this study is to investigate the influence of cross-linking and reinforcements in gelatin on the physico-mechanical properties of obtained composites. The gelatin-based composites cross-linked with citric acid (CA) were prepared: gelatin type B (GB) and β-tricalcium phosphate (β-TCP) and novel hybrid composite GB with β-TCP and hydroxyapatite (HAp) particles, and their structure, thermal, and mechanical properties were compared with pure gelatin B samples. FTIR analysis revealed that no chemical interaction between the reinforcements and gelatin matrix was established during the processing of hybrid composites by the solution casting method, proving the particles had no influence on GB cross-linking. The morphological investigation of hybrid composites revealed that cross-linking with CA improved the dispersion of particles, which further led to an increase in mechanical performance. The microindentation test showed that the hardness value was increased by up to 449%, which shows the high potential of β-TCP and HAp particle reinforcement combined with CA as a cross-linking agent. Furthermore, the reduced modulus of elasticity was increased by up to 288%. Results of the MTT assay on L929 cells have revealed that the hybrid composite GB-TCP-HA-CA was not cytotoxic. These results showed that GB cross-linked with CA and reinforced with different calcium phosphates presents a valuable novel material with potential applications in dentistry.
T2  - Polymers
T1  - Citric Acid Cross-Linked Gelatin-Based Composites with Improved Microhardness
VL  - 16
IS  - 8
SP  - 1077
DO  - 10.3390/polym16081077
ER  - 

@article{
author = "Taboun, Abdulrraouf and Jovanović, Marija and Petrović, Miloš and Stajčić, Ivana and Pešić, Ivan and Stojanović, Dušica B. and Radojević, Vesna",
year = "2024",
abstract = "The aim of this study is to investigate the influence of cross-linking and reinforcements in gelatin on the physico-mechanical properties of obtained composites. The gelatin-based composites cross-linked with citric acid (CA) were prepared: gelatin type B (GB) and β-tricalcium phosphate (β-TCP) and novel hybrid composite GB with β-TCP and hydroxyapatite (HAp) particles, and their structure, thermal, and mechanical properties were compared with pure gelatin B samples. FTIR analysis revealed that no chemical interaction between the reinforcements and gelatin matrix was established during the processing of hybrid composites by the solution casting method, proving the particles had no influence on GB cross-linking. The morphological investigation of hybrid composites revealed that cross-linking with CA improved the dispersion of particles, which further led to an increase in mechanical performance. The microindentation test showed that the hardness value was increased by up to 449%, which shows the high potential of β-TCP and HAp particle reinforcement combined with CA as a cross-linking agent. Furthermore, the reduced modulus of elasticity was increased by up to 288%. Results of the MTT assay on L929 cells have revealed that the hybrid composite GB-TCP-HA-CA was not cytotoxic. These results showed that GB cross-linked with CA and reinforced with different calcium phosphates presents a valuable novel material with potential applications in dentistry.",
journal = "Polymers",
title = "Citric Acid Cross-Linked Gelatin-Based Composites with Improved Microhardness",
volume = "16",
number = "8",
pages = "1077",
doi = "10.3390/polym16081077"
}

Taboun, A., Jovanović, M., Petrović, M., Stajčić, I., Pešić, I., Stojanović, D. B.,& Radojević, V.. (2024). Citric Acid Cross-Linked Gelatin-Based Composites with Improved Microhardness. in Polymers, 16(8), 1077.
https://doi.org/10.3390/polym16081077

Taboun A, Jovanović M, Petrović M, Stajčić I, Pešić I, Stojanović DB, Radojević V. Citric Acid Cross-Linked Gelatin-Based Composites with Improved Microhardness. in Polymers. 2024;16(8):1077.
doi:10.3390/polym16081077 .

Taboun, Abdulrraouf, Jovanović, Marija, Petrović, Miloš, Stajčić, Ivana, Pešić, Ivan, Stojanović, Dušica B., Radojević, Vesna, "Citric Acid Cross-Linked Gelatin-Based Composites with Improved Microhardness" in Polymers, 16, no. 8 (2024):1077,
https://doi.org/10.3390/polym16081077 . .

TY  - JOUR
AU  - Milanković, Vedran
AU  - Tasić, Tamara
AU  - Brković, Snežana M.
AU  - Potkonjak, Nebojša I.
AU  - Unterweger, C.
AU  - Bajuk-Bogdanović, Danica V.
AU  - Pašti, Igor A.
AU  - Lazarević-Pašti, Tamara
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13261
AB  - Environmental contamination from various industrial sources poses a significant global concern, demanding effective remediation strategies. This study investigates the efficacy of spent coffee grounds-derived carbon material in removing various contaminants, including organophosphate pesticides, pharmaceutical residues, and cationic dyes from aqueous solutions. Adsorption experiments were conducted at different temperatures (25 °C, 30 °C, and 35 °C), and the adsorption behavior was analyzed using various kinetic (pseudo-first-order, pseudo-second-order, Elovich, intraparticle diffusion) and isotherm models (Freundlich, Langmuir, Temkin, Dubinin-Radushkevich). Our findings reveal a complex adsorption process involving both monolayer and multilayer adsorption on the heterogeneous surface of the material. Temperature significantly influenced adsorption behavior, affecting maximum capacities and interactions. Using a material concentration of 0.5 mg mL−1 increases adsorption capacities for both pesticides, reaching 92.0 mg g−1 for malathion and 259 mg g−1 for chlorpyrifos adsorption. At a material concentration of 0.1 mg mL−1, the carbon material exhibited high adsorption capacities for methylene blue, rhodamine B, amoxicillin, and ceftriaxone, reaching values of 2085 mg g−1, 8250 mg g−1, 82 mg g−1, and 181 mg g−1, respectively. The adsorbent was successfully regenerated using 25 % ethanol solution and reused for at least 10 cycles without significantly impacting the adsorption capacity. These results underscore the potential of spent coffee grounds-derived carbon material as an efficient adsorbent for diverse contaminants, highlighting its promising role in environmental remediation efforts.
T2  - Journal of Water Process Engineering
T1  - Spent coffee grounds-derived carbon material as an effective adsorbent for removing multiple contaminants from wastewater: A comprehensive kinetic, isotherm, and thermodynamic study
VL  - 63
SP  - 105507
DO  - 10.1016/j.jwpe.2024.105507
ER  - 

@article{
author = "Milanković, Vedran and Tasić, Tamara and Brković, Snežana M. and Potkonjak, Nebojša I. and Unterweger, C. and Bajuk-Bogdanović, Danica V. and Pašti, Igor A. and Lazarević-Pašti, Tamara",
year = "2024",
abstract = "Environmental contamination from various industrial sources poses a significant global concern, demanding effective remediation strategies. This study investigates the efficacy of spent coffee grounds-derived carbon material in removing various contaminants, including organophosphate pesticides, pharmaceutical residues, and cationic dyes from aqueous solutions. Adsorption experiments were conducted at different temperatures (25 °C, 30 °C, and 35 °C), and the adsorption behavior was analyzed using various kinetic (pseudo-first-order, pseudo-second-order, Elovich, intraparticle diffusion) and isotherm models (Freundlich, Langmuir, Temkin, Dubinin-Radushkevich). Our findings reveal a complex adsorption process involving both monolayer and multilayer adsorption on the heterogeneous surface of the material. Temperature significantly influenced adsorption behavior, affecting maximum capacities and interactions. Using a material concentration of 0.5 mg mL−1 increases adsorption capacities for both pesticides, reaching 92.0 mg g−1 for malathion and 259 mg g−1 for chlorpyrifos adsorption. At a material concentration of 0.1 mg mL−1, the carbon material exhibited high adsorption capacities for methylene blue, rhodamine B, amoxicillin, and ceftriaxone, reaching values of 2085 mg g−1, 8250 mg g−1, 82 mg g−1, and 181 mg g−1, respectively. The adsorbent was successfully regenerated using 25 % ethanol solution and reused for at least 10 cycles without significantly impacting the adsorption capacity. These results underscore the potential of spent coffee grounds-derived carbon material as an efficient adsorbent for diverse contaminants, highlighting its promising role in environmental remediation efforts.",
journal = "Journal of Water Process Engineering",
title = "Spent coffee grounds-derived carbon material as an effective adsorbent for removing multiple contaminants from wastewater: A comprehensive kinetic, isotherm, and thermodynamic study",
volume = "63",
pages = "105507",
doi = "10.1016/j.jwpe.2024.105507"
}

Milanković, V., Tasić, T., Brković, S. M., Potkonjak, N. I., Unterweger, C., Bajuk-Bogdanović, D. V., Pašti, I. A.,& Lazarević-Pašti, T.. (2024). Spent coffee grounds-derived carbon material as an effective adsorbent for removing multiple contaminants from wastewater: A comprehensive kinetic, isotherm, and thermodynamic study. in Journal of Water Process Engineering, 63, 105507.
https://doi.org/10.1016/j.jwpe.2024.105507

Milanković V, Tasić T, Brković SM, Potkonjak NI, Unterweger C, Bajuk-Bogdanović DV, Pašti IA, Lazarević-Pašti T. Spent coffee grounds-derived carbon material as an effective adsorbent for removing multiple contaminants from wastewater: A comprehensive kinetic, isotherm, and thermodynamic study. in Journal of Water Process Engineering. 2024;63:105507.
doi:10.1016/j.jwpe.2024.105507 .

Milanković, Vedran, Tasić, Tamara, Brković, Snežana M., Potkonjak, Nebojša I., Unterweger, C., Bajuk-Bogdanović, Danica V., Pašti, Igor A., Lazarević-Pašti, Tamara, "Spent coffee grounds-derived carbon material as an effective adsorbent for removing multiple contaminants from wastewater: A comprehensive kinetic, isotherm, and thermodynamic study" in Journal of Water Process Engineering, 63 (2024):105507,
https://doi.org/10.1016/j.jwpe.2024.105507 . .