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  - Korina, Elena
AU  - Abramyan, Anton
AU  - Bol’shakov, Oleg
AU  - Avdin, Vyacheslav V.
AU  - Savić, Slađana
AU  - Manojlović, Dragan D.
AU  - Stanković, Vesna
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10621
AB  - Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and a small fraction of morphological irregularities. Obtained microspheres had a complex structure comprised of flakes, whose size could be manipulated with temperature conditions. Samples were found to be electrochemically active against sulcotrione, a well-recognized herbicide. Electrochemical sensors based on the synthesized microspheres were successfully adapted for natural water reservoir analysis and exhibited low levels of detection of 0.61 µM, limit of quantification of 1.86 µM, wide dynamic linear range from 2 to 200 µM, good selectivity, excellent reproducibility and in-time stability.
T2  - Sensors
T1  - Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications
VL  - 23
IS  - 2
SP  - 933
DO  - 10.3390/s23020933
ER  - 

@article{
author = "Korina, Elena and Abramyan, Anton and Bol’shakov, Oleg and Avdin, Vyacheslav V. and Savić, Slađana and Manojlović, Dragan D. and Stanković, Vesna and Stanković, Dalibor M.",
year = "2023",
abstract = "Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and a small fraction of morphological irregularities. Obtained microspheres had a complex structure comprised of flakes, whose size could be manipulated with temperature conditions. Samples were found to be electrochemically active against sulcotrione, a well-recognized herbicide. Electrochemical sensors based on the synthesized microspheres were successfully adapted for natural water reservoir analysis and exhibited low levels of detection of 0.61 µM, limit of quantification of 1.86 µM, wide dynamic linear range from 2 to 200 µM, good selectivity, excellent reproducibility and in-time stability.",
journal = "Sensors",
title = "Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications",
volume = "23",
number = "2",
pages = "933",
doi = "10.3390/s23020933"
}

Korina, E., Abramyan, A., Bol’shakov, O., Avdin, V. V., Savić, S., Manojlović, D. D., Stanković, V.,& Stanković, D. M.. (2023). Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications. in Sensors, 23(2), 933.
https://doi.org/10.3390/s23020933

Korina E, Abramyan A, Bol’shakov O, Avdin VV, Savić S, Manojlović DD, Stanković V, Stanković DM. Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications. in Sensors. 2023;23(2):933.
doi:10.3390/s23020933 .

Korina, Elena, Abramyan, Anton, Bol’shakov, Oleg, Avdin, Vyacheslav V., Savić, Slađana, Manojlović, Dragan D., Stanković, Vesna, Stanković, Dalibor M., "Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications" in Sensors, 23, no. 2 (2023):933,
https://doi.org/10.3390/s23020933 . .

TY  - JOUR
AU  - Savić, Slađana
AU  - Roglić, Goran
AU  - Avdin, Vyacheslav V.
AU  - Zherebtsov, Dmitry A.
AU  - Stanković, Dalibor M.
AU  - Manojlović, Dragan D.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10162
AB  - Compounds used in the fashion industry effect the water bodies in the vicinity of textile factories, resulting in the visible coloration of surface water. Fe-doped graphite-based in house prepared electrodes were used in the Fenton- -like degradation of Reactive Blue 52 (RB52). The electrodes consisting of high-density graphite in three granulation sizes and three levels of Fe content were characterized using scanning electron microscopy (SEM). The amount of Fe in the electrodes and H2O2 concentration in synthetic textile wastewater were optimized. Additionally, the size of graphite grains was varied to investigate whether it effects the degradation rate. Under only 10 min of electro-Fenton degradation, a system with 10 mmol dm-3 of H2O2 and an electrode made of 7 % of Fe and 70 μm of granulation size of graphite, degraded over 75 % of RB52, and over 99 % after 40 min of treatment. The obtained results indicate that the proposed approach could be beneficial in the field of novel materials for environmental application and that in house prepared carbon could be an excellent replacement for commercially available supports.
AB  - Једињења која се користе у модној индустрији утичу на водна тела у околини текстилних фабрика, што резултира видљивим обојењем површинских вода. Домаће електроде на бази графита допиране гвожђем биле су укључене у деградацију Reactive Blue
52 (RB52) механизма попут Фентонове реакције. Електроде су се састојале од графита
велике густине у три величине гранулације и три количине Fе и окарактерисане су
помоћу скенирајуће електронске микроскопије (SEM). Оптимизоване су количина Fe у
електродама и концентрација H2O2 у синтетичкој текстилној отпадној води. Додатно,
величина графитних зрна је варирана како би се испитало да ли утиче на брзину разградње. За само 10 min електро-Фентонове деградације систем са 10 mmol dm-3 H2O2 и
електродом од 7 % Fе и 70 μm величине гранулације графита разградило се преко 75 %
RB52 и преко 99 % након 40 min третмана. Добијени резултати указују на то да предложени приступ може бити користан у области нових материјала за примену у животној
средини и да домаће припремљени угљеник може бити одлична замена за комерцијално
доступне носаче.
T2  - Journal of the Serbian Chemical Society
T1  - In-house-prepared carbon-based Fe-doped catalysts for electro-Fenton degradation of azo dyes
VL  - 87
IS  - 1
SP  - 57
EP  - 67
DO  - 10.2298/JSC210901103S
ER  - 

@article{
author = "Savić, Slađana and Roglić, Goran and Avdin, Vyacheslav V. and Zherebtsov, Dmitry A. and Stanković, Dalibor M. and Manojlović, Dragan D.",
year = "2022",
abstract = "Compounds used in the fashion industry effect the water bodies in the vicinity of textile factories, resulting in the visible coloration of surface water. Fe-doped graphite-based in house prepared electrodes were used in the Fenton- -like degradation of Reactive Blue 52 (RB52). The electrodes consisting of high-density graphite in three granulation sizes and three levels of Fe content were characterized using scanning electron microscopy (SEM). The amount of Fe in the electrodes and H2O2 concentration in synthetic textile wastewater were optimized. Additionally, the size of graphite grains was varied to investigate whether it effects the degradation rate. Under only 10 min of electro-Fenton degradation, a system with 10 mmol dm-3 of H2O2 and an electrode made of 7 % of Fe and 70 μm of granulation size of graphite, degraded over 75 % of RB52, and over 99 % after 40 min of treatment. The obtained results indicate that the proposed approach could be beneficial in the field of novel materials for environmental application and that in house prepared carbon could be an excellent replacement for commercially available supports., Једињења која се користе у модној индустрији утичу на водна тела у околини текстилних фабрика, што резултира видљивим обојењем површинских вода. Домаће електроде на бази графита допиране гвожђем биле су укључене у деградацију Reactive Blue
52 (RB52) механизма попут Фентонове реакције. Електроде су се састојале од графита
велике густине у три величине гранулације и три количине Fе и окарактерисане су
помоћу скенирајуће електронске микроскопије (SEM). Оптимизоване су количина Fe у
електродама и концентрација H2O2 у синтетичкој текстилној отпадној води. Додатно,
величина графитних зрна је варирана како би се испитало да ли утиче на брзину разградње. За само 10 min електро-Фентонове деградације систем са 10 mmol dm-3 H2O2 и
електродом од 7 % Fе и 70 μm величине гранулације графита разградило се преко 75 %
RB52 и преко 99 % након 40 min третмана. Добијени резултати указују на то да предложени приступ може бити користан у области нових материјала за примену у животној
средини и да домаће припремљени угљеник може бити одлична замена за комерцијално
доступне носаче.",
journal = "Journal of the Serbian Chemical Society",
title = "In-house-prepared carbon-based Fe-doped catalysts for electro-Fenton degradation of azo dyes",
volume = "87",
number = "1",
pages = "57-67",
doi = "10.2298/JSC210901103S"
}

Savić, S., Roglić, G., Avdin, V. V., Zherebtsov, D. A., Stanković, D. M.,& Manojlović, D. D.. (2022). In-house-prepared carbon-based Fe-doped catalysts for electro-Fenton degradation of azo dyes. in Journal of the Serbian Chemical Society, 87(1), 57-67.
https://doi.org/10.2298/JSC210901103S

Savić S, Roglić G, Avdin VV, Zherebtsov DA, Stanković DM, Manojlović DD. In-house-prepared carbon-based Fe-doped catalysts for electro-Fenton degradation of azo dyes. in Journal of the Serbian Chemical Society. 2022;87(1):57-67.
doi:10.2298/JSC210901103S .

Savić, Slađana, Roglić, Goran, Avdin, Vyacheslav V., Zherebtsov, Dmitry A., Stanković, Dalibor M., Manojlović, Dragan D., "In-house-prepared carbon-based Fe-doped catalysts for electro-Fenton degradation of azo dyes" in Journal of the Serbian Chemical Society, 87, no. 1 (2022):57-67,
https://doi.org/10.2298/JSC210901103S . .