TY  - JOUR
AU  - Stanković, Dalibor M.
AU  - Kukuruzar, Andrej
AU  - Savić, Slađana
AU  - Ognjanović, Miloš
AU  - Janković-Častvan, Ivona M.
AU  - Roglić, Goran
AU  - Antić, Bratislav
AU  - Manojlović, Dragan
AU  - Dojčinović, Biljana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4788
AB  - The textile industry is one of the major pollutants of waterbodies with effluents high in biochemical and chemical oxygen demand values, high values of total dissolved solids, total suspended solids, and low dissolved oxygen values along with strong color. The existence of a successful method for its decontamination would be beneficial. In this work, we synthesized sponge-like europium oxide (Eu2O3) using a template-directed route from carbon hollow spheres, obtained from glucose as a carbon source. The material synthesis method was done in an aqueous environment, without using any organic solvents. Electrochemical properties of the synthesized material were investigated using cyclic voltammetry and electrical impedance spectroscopy, while morphological characterization was done using scanning electron microscopy and X-ray powder diffraction analysis. Eu2O3 were successfully immobilized at the surface of a screen-printed carbon electrode (Eu2O3/SPCE) using the drop-casting method. Finally, the prepared electrodes were tested toward the removal of Reactive Blue 52 (RB52) using electrochemical advanced oxidation processes (EAOPs). Important parameters, that is, the supporting electrolyte, its concentration, pH value, and the applied voltage, were optimized for RB52 degradation. The rate of removal was monitored spectrophotometrically and by high-performance liquid chromatography with a diode array detector (HPLC-DAD). It was found that the proposed approach reaches complete decolorization of the RB52 solution after a 60-min treatment, at pH 5.6 of KCl supporting electrolyte at a concentration of 0.05 M. Under optimal parameters, after 3 h of treatment, total organic carbon (TOC) was lowered by ~40%. The obtained results indicate that the proposed method may find potential application in EAOPs, considering electrode stability, durability, and efficiency and simplicity of the method.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - Sponge-like europium oxide from hollow carbon sphere as a template for an anode material for Reactive Blue 52 electrochemical degradation
VL  - 273
SP  - 125154
DO  - 10.1016/j.matchemphys.2021.125154
ER  - 

@article{
author = "Stanković, Dalibor M. and Kukuruzar, Andrej and Savić, Slađana and Ognjanović, Miloš and Janković-Častvan, Ivona M. and Roglić, Goran and Antić, Bratislav and Manojlović, Dragan and Dojčinović, Biljana",
year = "2021",
abstract = "The textile industry is one of the major pollutants of waterbodies with effluents high in biochemical and chemical oxygen demand values, high values of total dissolved solids, total suspended solids, and low dissolved oxygen values along with strong color. The existence of a successful method for its decontamination would be beneficial. In this work, we synthesized sponge-like europium oxide (Eu2O3) using a template-directed route from carbon hollow spheres, obtained from glucose as a carbon source. The material synthesis method was done in an aqueous environment, without using any organic solvents. Electrochemical properties of the synthesized material were investigated using cyclic voltammetry and electrical impedance spectroscopy, while morphological characterization was done using scanning electron microscopy and X-ray powder diffraction analysis. Eu2O3 were successfully immobilized at the surface of a screen-printed carbon electrode (Eu2O3/SPCE) using the drop-casting method. Finally, the prepared electrodes were tested toward the removal of Reactive Blue 52 (RB52) using electrochemical advanced oxidation processes (EAOPs). Important parameters, that is, the supporting electrolyte, its concentration, pH value, and the applied voltage, were optimized for RB52 degradation. The rate of removal was monitored spectrophotometrically and by high-performance liquid chromatography with a diode array detector (HPLC-DAD). It was found that the proposed approach reaches complete decolorization of the RB52 solution after a 60-min treatment, at pH 5.6 of KCl supporting electrolyte at a concentration of 0.05 M. Under optimal parameters, after 3 h of treatment, total organic carbon (TOC) was lowered by ~40%. The obtained results indicate that the proposed method may find potential application in EAOPs, considering electrode stability, durability, and efficiency and simplicity of the method.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "Sponge-like europium oxide from hollow carbon sphere as a template for an anode material for Reactive Blue 52 electrochemical degradation",
volume = "273",
pages = "125154",
doi = "10.1016/j.matchemphys.2021.125154"
}

Stanković, D. M., Kukuruzar, A., Savić, S., Ognjanović, M., Janković-Častvan, I. M., Roglić, G., Antić, B., Manojlović, D.,& Dojčinović, B.. (2021). Sponge-like europium oxide from hollow carbon sphere as a template for an anode material for Reactive Blue 52 electrochemical degradation. in Materials Chemistry and Physics
Elsevier., 273, 125154.
https://doi.org/10.1016/j.matchemphys.2021.125154

Stanković DM, Kukuruzar A, Savić S, Ognjanović M, Janković-Častvan IM, Roglić G, Antić B, Manojlović D, Dojčinović B. Sponge-like europium oxide from hollow carbon sphere as a template for an anode material for Reactive Blue 52 electrochemical degradation. in Materials Chemistry and Physics. 2021;273:125154.
doi:10.1016/j.matchemphys.2021.125154 .

Stanković, Dalibor M., Kukuruzar, Andrej, Savić, Slađana, Ognjanović, Miloš, Janković-Častvan, Ivona M., Roglić, Goran, Antić, Bratislav, Manojlović, Dragan, Dojčinović, Biljana, "Sponge-like europium oxide from hollow carbon sphere as a template for an anode material for Reactive Blue 52 electrochemical degradation" in Materials Chemistry and Physics, 273 (2021):125154,
https://doi.org/10.1016/j.matchemphys.2021.125154 . .

TY  - JOUR
AU  - Stanković, Dalibor M.
AU  - Milanović, Zorana
AU  - Švorc, Ljubomir
AU  - Stanković, Vesna
AU  - Janković, Drina
AU  - Mirković, Marija
AU  - Vranješ-Đurić, Sanja
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4224
AB  - This work presents advanced electrochemical platform based on screen printed diamond electrode (SPDE) system for the single drop “point-of-care” testing. Proposed approach was applied for the quantification of doxorubicin hydrochloride (DOX) in biological fluids and pharmaceutical product. Using a single drop (~30 μL) of the tested solution at the electrode surface, DOX showed high electroactivity over a wide range of pHs. In these conditions, single oval shaped, well-defined and pH dependent oxidation peak was observed in the potential range from 0.5 V to 1.3 V. In the reverse scan, two cathodic peaks, were noted – around 0.3 V and – 0.5 V. Similarly, first reduction peak was pH dependent, while second one was independent in the studied range. Experimental conditions for DOX quantification were optimized and natures of the electrode reactions were investigated. Working linear range obtained for DOX detection was from 0.1 to 2.5 μM. Diffusion controlled electrode reaction reveal long life time of the proposed electrode as well high potential for practical application. Developed procedure was successfully applied for the DOX analysis in biological fluids – urine and pharmaceutical formulation. Obtained results clearly indicated that given procedure can be easily implemented for pharmaceutical control and medical analysis, in both, laboratory and field conditions
PB  - Elsevier
T2  - Diamond and Related Materials
T1  - Screen printed diamond electrode as efficient “point-of-care” platform for submicromolar determination of cytostatic drug in biological fluids and pharmaceutical product
VL  - 113
SP  - 108277
DO  - 10.1016/j.diamond.2021.108277
ER  - 

@article{
author = "Stanković, Dalibor M. and Milanović, Zorana and Švorc, Ljubomir and Stanković, Vesna and Janković, Drina and Mirković, Marija and Vranješ-Đurić, Sanja",
year = "2021",
abstract = "This work presents advanced electrochemical platform based on screen printed diamond electrode (SPDE) system for the single drop “point-of-care” testing. Proposed approach was applied for the quantification of doxorubicin hydrochloride (DOX) in biological fluids and pharmaceutical product. Using a single drop (~30 μL) of the tested solution at the electrode surface, DOX showed high electroactivity over a wide range of pHs. In these conditions, single oval shaped, well-defined and pH dependent oxidation peak was observed in the potential range from 0.5 V to 1.3 V. In the reverse scan, two cathodic peaks, were noted – around 0.3 V and – 0.5 V. Similarly, first reduction peak was pH dependent, while second one was independent in the studied range. Experimental conditions for DOX quantification were optimized and natures of the electrode reactions were investigated. Working linear range obtained for DOX detection was from 0.1 to 2.5 μM. Diffusion controlled electrode reaction reveal long life time of the proposed electrode as well high potential for practical application. Developed procedure was successfully applied for the DOX analysis in biological fluids – urine and pharmaceutical formulation. Obtained results clearly indicated that given procedure can be easily implemented for pharmaceutical control and medical analysis, in both, laboratory and field conditions",
publisher = "Elsevier",
journal = "Diamond and Related Materials",
title = "Screen printed diamond electrode as efficient “point-of-care” platform for submicromolar determination of cytostatic drug in biological fluids and pharmaceutical product",
volume = "113",
pages = "108277",
doi = "10.1016/j.diamond.2021.108277"
}

Stanković, D. M., Milanović, Z., Švorc, L., Stanković, V., Janković, D., Mirković, M.,& Vranješ-Đurić, S.. (2021). Screen printed diamond electrode as efficient “point-of-care” platform for submicromolar determination of cytostatic drug in biological fluids and pharmaceutical product. in Diamond and Related Materials
Elsevier., 113, 108277.
https://doi.org/10.1016/j.diamond.2021.108277

Stanković DM, Milanović Z, Švorc L, Stanković V, Janković D, Mirković M, Vranješ-Đurić S. Screen printed diamond electrode as efficient “point-of-care” platform for submicromolar determination of cytostatic drug in biological fluids and pharmaceutical product. in Diamond and Related Materials. 2021;113:108277.
doi:10.1016/j.diamond.2021.108277 .

Stanković, Dalibor M., Milanović, Zorana, Švorc, Ljubomir, Stanković, Vesna, Janković, Drina, Mirković, Marija, Vranješ-Đurić, Sanja, "Screen printed diamond electrode as efficient “point-of-care” platform for submicromolar determination of cytostatic drug in biological fluids and pharmaceutical product" in Diamond and Related Materials, 113 (2021):108277,
https://doi.org/10.1016/j.diamond.2021.108277 . .