TY  - JOUR
AU  - Lović, Jelena
AU  - Bogdanović, Aleksandra
AU  - Mijin, Dušan
AU  - Vuković, Dragan
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5197
AB  - Ticagrelor hydrochloride (TCG) is effective in platelet inhibition and useful for preventing cardiovascular death, myocardial infarction, or ischaemic stroke. The drug standard was investigated by cyclic voltammetry (CV) and quantitatively determined using differential pulse voltammetry (DPV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. DPV showed a linear dependency of the anodic peak currents vs. TCG standard concentrations in the range from 3 x 10-7 mol l-1 to 10-5 mol l-1 with the values of the limit of detection (LOD) and the limit of quantification: 0.288 μmol l-1 and 0.96 μmol l-1, respectively. Using the constructed and validated calibration curve, the values of unknown ticagrelor concentrations in Ticagrex® tablets and in human serum spiked with the standard were determined. Mechanistic study suggests that the oxidation proceeds at sulfur atom by removal of one electron as the rate determining step. In the next, fast step, formed radical cation loose another electron and sulfoxide is formed (with water molecule as nucleophile). The study of TCG degradation showed that at the Au, after 4.5 h of potential cycling, degradation occurs, which was confirmed by UV spectroscopy.
PB  - ESG
T2  - International Journal of Electrochemical Science
T1  - Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode
SP  - 220928
VL  - 17
DO  - 10.20964/2022.09.36
ER  - 

@article{
author = "Lović, Jelena and Bogdanović, Aleksandra and Mijin, Dušan and Vuković, Dragan and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2022",
abstract = "Ticagrelor hydrochloride (TCG) is effective in platelet inhibition and useful for preventing cardiovascular death, myocardial infarction, or ischaemic stroke. The drug standard was investigated by cyclic voltammetry (CV) and quantitatively determined using differential pulse voltammetry (DPV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. DPV showed a linear dependency of the anodic peak currents vs. TCG standard concentrations in the range from 3 x 10-7 mol l-1 to 10-5 mol l-1 with the values of the limit of detection (LOD) and the limit of quantification: 0.288 μmol l-1 and 0.96 μmol l-1, respectively. Using the constructed and validated calibration curve, the values of unknown ticagrelor concentrations in Ticagrex® tablets and in human serum spiked with the standard were determined. Mechanistic study suggests that the oxidation proceeds at sulfur atom by removal of one electron as the rate determining step. In the next, fast step, formed radical cation loose another electron and sulfoxide is formed (with water molecule as nucleophile). The study of TCG degradation showed that at the Au, after 4.5 h of potential cycling, degradation occurs, which was confirmed by UV spectroscopy.",
publisher = "ESG",
journal = "International Journal of Electrochemical Science",
title = "Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode",
pages = "220928",
volume = "17",
doi = "10.20964/2022.09.36"
}

Lović, J., Bogdanović, A., Mijin, D., Vuković, D., Petrović, S.,& Avramov-Ivić, M.. (2022). Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode. in International Journal of Electrochemical Science
ESG., 17, 220928.
https://doi.org/10.20964/2022.09.36

Lović J, Bogdanović A, Mijin D, Vuković D, Petrović S, Avramov-Ivić M. Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode. in International Journal of Electrochemical Science. 2022;17:220928.
doi:10.20964/2022.09.36 .

Lović, Jelena, Bogdanović, Aleksandra, Mijin, Dušan, Vuković, Dragan, Petrović, Slobodan, Avramov-Ivić, Milka, "Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode" in International Journal of Electrochemical Science, 17 (2022):220928,
https://doi.org/10.20964/2022.09.36 . .

TY  - JOUR
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Ljubiša
AU  - Nikolić, Vesna
AU  - Petrović, Slobodan
AU  - Oro, Violeta
AU  - Mitić, Žarko
AU  - Najman, Stevo
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4899
AB  - In this study, poly(N-isopropylacrylamide-co-2-hydroxypropyl methacrylate) hydrogels were synthesized using free radical initiated copolymerization method. Four hydrogels with different cross-linker concentrations were prepared. Semi-crystalline, cross-linked copolymer networks were confirmed by FTIR, SEM and XRD analysis. Variation of swelling behaviour was monitored gravimetrically and thermo-responsiveness has been noticed. An application of synthesized thermo-responsive hydrogels as carriers for the modulated release of anti-inflammatory model drug was investigated. Moreover, naproxen loading into these hydrogels was also determined using FTIR, SEM and XRD techniques and release was analyzed using HPLC method at simulated physiological conditions. Swelling kinetic and mechanism of water transport, as well as diffusion of naproxen through the hydrogels were analyzed. Thus, the aim of this work was to study various compositions of obtained hydrogels and their possibility of application as a thermo-responsive carrier for prolonged naproxen release in order to evaluate as a potential candidate for drug carrier in future pharmaceutical applications.
T2  - Pharmaceutics
T1  - Semi-Crystalline Copolymer Hydrogels as Smart Drug Carriers: In Vitro Thermo-Responsive Naproxen Release Study
IS  - 2
VL  - 13
DO  - 10.3390/pharmaceutics13020158
ER  - 

@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša and Nikolić, Vesna and Petrović, Slobodan and Oro, Violeta and Mitić, Žarko and Najman, Stevo",
year = "2021",
abstract = "In this study, poly(N-isopropylacrylamide-co-2-hydroxypropyl methacrylate) hydrogels were synthesized using free radical initiated copolymerization method. Four hydrogels with different cross-linker concentrations were prepared. Semi-crystalline, cross-linked copolymer networks were confirmed by FTIR, SEM and XRD analysis. Variation of swelling behaviour was monitored gravimetrically and thermo-responsiveness has been noticed. An application of synthesized thermo-responsive hydrogels as carriers for the modulated release of anti-inflammatory model drug was investigated. Moreover, naproxen loading into these hydrogels was also determined using FTIR, SEM and XRD techniques and release was analyzed using HPLC method at simulated physiological conditions. Swelling kinetic and mechanism of water transport, as well as diffusion of naproxen through the hydrogels were analyzed. Thus, the aim of this work was to study various compositions of obtained hydrogels and their possibility of application as a thermo-responsive carrier for prolonged naproxen release in order to evaluate as a potential candidate for drug carrier in future pharmaceutical applications.",
journal = "Pharmaceutics",
title = "Semi-Crystalline Copolymer Hydrogels as Smart Drug Carriers: In Vitro Thermo-Responsive Naproxen Release Study",
number = "2",
volume = "13",
doi = "10.3390/pharmaceutics13020158"
}

Ilić-Stojanović, S., Nikolić, L., Nikolić, V., Petrović, S., Oro, V., Mitić, Ž.,& Najman, S.. (2021). Semi-Crystalline Copolymer Hydrogels as Smart Drug Carriers: In Vitro Thermo-Responsive Naproxen Release Study. in Pharmaceutics, 13(2).
https://doi.org/10.3390/pharmaceutics13020158

Ilić-Stojanović S, Nikolić L, Nikolić V, Petrović S, Oro V, Mitić Ž, Najman S. Semi-Crystalline Copolymer Hydrogels as Smart Drug Carriers: In Vitro Thermo-Responsive Naproxen Release Study. in Pharmaceutics. 2021;13(2).
doi:10.3390/pharmaceutics13020158 .

Ilić-Stojanović, Snežana, Nikolić, Ljubiša, Nikolić, Vesna, Petrović, Slobodan, Oro, Violeta, Mitić, Žarko, Najman, Stevo, "Semi-Crystalline Copolymer Hydrogels as Smart Drug Carriers: In Vitro Thermo-Responsive Naproxen Release Study" in Pharmaceutics, 13, no. 2 (2021),
https://doi.org/10.3390/pharmaceutics13020158 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Lađarević, Jelena
AU  - Trišović, Nemanja
AU  - Andrić, Filip
AU  - Mladenović, Aleksandar
AU  - Mijin, Dušan
AU  - Vuković, Dragan
AU  - Petrović, Slobodan
AU  - Ivić, Milka Avramov
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4896
AB  - The electrochemical characterization of sertraline at gold electrode was examined by cyclic voltammetry measurements (CV) in pH 8.4 bicarbonate buffer. Then Au electrode was evaluated for the quantitative determination of sertraline using square wave voltammetry (SWV). To enhance the sensitivity during the drug determination, (2-hydroxypropyl)-beta-cyclodextrin (HP beta CD) and beta-cyclodextrin (beta CD) inclusion complexes were employed. Using the proposed SWV technique, the anodic current peak was linear within a concentration range of 0.1-0.5 mu M with a limit of detection (LOD) of 2.0 x 10(-8) M and a limit of quantification (LOQ) of 6.7 x 10(-8) M. In the case of inclusion complex of the sertraline with HP beta CD, a good linearity range of 0.1-0.9 mu M was obtained with a LOD of 2.6 x 10(-8) M and a LOQ of 8.8 x 10(-8) M. The gold electrode revealed the same linearity range for inclusion complex of the sertraline with beta CD with a LOD and a LOQ being 2.6 x 10(-8) and 8.6 x 10(-8) M, respectively. Comparing the regression equations, it can be concluded that the sensitivity in the presence of inclusion complex can be up to 5 times higher. The applicability of the developed method was confirmed by the analysis of this drug in pharmaceutical formulation and in human serum spiked with sertraline standard. The comparison to HPLC method was successfully performed. [GRAPHICS] .
T2  - Monatshefte Fur Chemie
T1  - Electrochemical determination of sertraline in pharmaceutical formulation and serum using a gold electrode in a pH 8.4 bicarbonate solution
EP  - 192
IS  - 2
SP  - 185
VL  - 152
DO  - 10.1007/s00706-021-02745-3
ER  - 

@article{
author = "Lović, Jelena and Lađarević, Jelena and Trišović, Nemanja and Andrić, Filip and Mladenović, Aleksandar and Mijin, Dušan and Vuković, Dragan and Petrović, Slobodan and Ivić, Milka Avramov",
year = "2021",
abstract = "The electrochemical characterization of sertraline at gold electrode was examined by cyclic voltammetry measurements (CV) in pH 8.4 bicarbonate buffer. Then Au electrode was evaluated for the quantitative determination of sertraline using square wave voltammetry (SWV). To enhance the sensitivity during the drug determination, (2-hydroxypropyl)-beta-cyclodextrin (HP beta CD) and beta-cyclodextrin (beta CD) inclusion complexes were employed. Using the proposed SWV technique, the anodic current peak was linear within a concentration range of 0.1-0.5 mu M with a limit of detection (LOD) of 2.0 x 10(-8) M and a limit of quantification (LOQ) of 6.7 x 10(-8) M. In the case of inclusion complex of the sertraline with HP beta CD, a good linearity range of 0.1-0.9 mu M was obtained with a LOD of 2.6 x 10(-8) M and a LOQ of 8.8 x 10(-8) M. The gold electrode revealed the same linearity range for inclusion complex of the sertraline with beta CD with a LOD and a LOQ being 2.6 x 10(-8) and 8.6 x 10(-8) M, respectively. Comparing the regression equations, it can be concluded that the sensitivity in the presence of inclusion complex can be up to 5 times higher. The applicability of the developed method was confirmed by the analysis of this drug in pharmaceutical formulation and in human serum spiked with sertraline standard. The comparison to HPLC method was successfully performed. [GRAPHICS] .",
journal = "Monatshefte Fur Chemie",
title = "Electrochemical determination of sertraline in pharmaceutical formulation and serum using a gold electrode in a pH 8.4 bicarbonate solution",
pages = "192-185",
number = "2",
volume = "152",
doi = "10.1007/s00706-021-02745-3"
}

Lović, J., Lađarević, J., Trišović, N., Andrić, F., Mladenović, A., Mijin, D., Vuković, D., Petrović, S.,& Ivić, M. A.. (2021). Electrochemical determination of sertraline in pharmaceutical formulation and serum using a gold electrode in a pH 8.4 bicarbonate solution. in Monatshefte Fur Chemie, 152(2), 185-192.
https://doi.org/10.1007/s00706-021-02745-3

Lović J, Lađarević J, Trišović N, Andrić F, Mladenović A, Mijin D, Vuković D, Petrović S, Ivić MA. Electrochemical determination of sertraline in pharmaceutical formulation and serum using a gold electrode in a pH 8.4 bicarbonate solution. in Monatshefte Fur Chemie. 2021;152(2):185-192.
doi:10.1007/s00706-021-02745-3 .

Lović, Jelena, Lađarević, Jelena, Trišović, Nemanja, Andrić, Filip, Mladenović, Aleksandar, Mijin, Dušan, Vuković, Dragan, Petrović, Slobodan, Ivić, Milka Avramov, "Electrochemical determination of sertraline in pharmaceutical formulation and serum using a gold electrode in a pH 8.4 bicarbonate solution" in Monatshefte Fur Chemie, 152, no. 2 (2021):185-192,
https://doi.org/10.1007/s00706-021-02745-3 . .

TY  - JOUR
AU  - Bogdanović, Aleksandra
AU  - Lazić, Anita
AU  - Grujic, Slavica
AU  - Dimkic, Ivica
AU  - Stankovic, Slavisa
AU  - Petrović, Slobodan
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4912
AB  - In this study we screened twelve newly synthesised N-(substituted phenyl)-2-chloroacetamides for antimicrobial potential relying on quantitative structure-activity relationship (QSAR) analysis based on the available cheminformatics prediction models (Molinspiration, SwissADME, PreADMET, and PkcSM) and verified it through standard antimicrobial testing against Escherichia coli, Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), and Candida albicans. Our compounds met all the screening criteria of Lipinski's rule of five (Ro5) as well as Veber's and Egan's methods for predicting biological activity. In antimicrobial activity tests, all chloroacetamides were effective against Gram-positive S. aureus and MRSA, less effective against the Gram-negative E. coli, and moderately effective against the yeast C. albicans. Our study confirmed that the biological activity of chloroacetamides varied with the position of substituents bound to the phenyl ring, which explains why some molecules were more effective against Gram-negative than Gram-positive bacteria or C. albicans. Bearing the halogenated p-substituted phenyl ring, N-(4-chlorophenyl), N-(4-fluorophenyl), and N-(3-bromophenyl) chloroacetamides were among the most active thanks to high lipophilicity, which allows them to pass rapidly through the phospholipid bilayer of the cell membrane. They are the most promising compounds for further investigation, particularly against Gram-positive bacteria and pathogenic yeasts.
T2  - Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology
T1  - Characterisation of twelve newly synthesised N-(substituted phenyl)-2-chloroacetamides with QSAR analysis and antimicrobial activity tests
EP  - 79
IS  - 1
SP  - 70
VL  - 72
DO  - 10.2478/aiht-2021-72-3483
ER  - 

@article{
author = "Bogdanović, Aleksandra and Lazić, Anita and Grujic, Slavica and Dimkic, Ivica and Stankovic, Slavisa and Petrović, Slobodan",
year = "2021",
abstract = "In this study we screened twelve newly synthesised N-(substituted phenyl)-2-chloroacetamides for antimicrobial potential relying on quantitative structure-activity relationship (QSAR) analysis based on the available cheminformatics prediction models (Molinspiration, SwissADME, PreADMET, and PkcSM) and verified it through standard antimicrobial testing against Escherichia coli, Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), and Candida albicans. Our compounds met all the screening criteria of Lipinski's rule of five (Ro5) as well as Veber's and Egan's methods for predicting biological activity. In antimicrobial activity tests, all chloroacetamides were effective against Gram-positive S. aureus and MRSA, less effective against the Gram-negative E. coli, and moderately effective against the yeast C. albicans. Our study confirmed that the biological activity of chloroacetamides varied with the position of substituents bound to the phenyl ring, which explains why some molecules were more effective against Gram-negative than Gram-positive bacteria or C. albicans. Bearing the halogenated p-substituted phenyl ring, N-(4-chlorophenyl), N-(4-fluorophenyl), and N-(3-bromophenyl) chloroacetamides were among the most active thanks to high lipophilicity, which allows them to pass rapidly through the phospholipid bilayer of the cell membrane. They are the most promising compounds for further investigation, particularly against Gram-positive bacteria and pathogenic yeasts.",
journal = "Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology",
title = "Characterisation of twelve newly synthesised N-(substituted phenyl)-2-chloroacetamides with QSAR analysis and antimicrobial activity tests",
pages = "79-70",
number = "1",
volume = "72",
doi = "10.2478/aiht-2021-72-3483"
}

Bogdanović, A., Lazić, A., Grujic, S., Dimkic, I., Stankovic, S.,& Petrović, S.. (2021). Characterisation of twelve newly synthesised N-(substituted phenyl)-2-chloroacetamides with QSAR analysis and antimicrobial activity tests. in Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology, 72(1), 70-79.
https://doi.org/10.2478/aiht-2021-72-3483

Bogdanović A, Lazić A, Grujic S, Dimkic I, Stankovic S, Petrović S. Characterisation of twelve newly synthesised N-(substituted phenyl)-2-chloroacetamides with QSAR analysis and antimicrobial activity tests. in Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology. 2021;72(1):70-79.
doi:10.2478/aiht-2021-72-3483 .

Bogdanović, Aleksandra, Lazić, Anita, Grujic, Slavica, Dimkic, Ivica, Stankovic, Slavisa, Petrović, Slobodan, "Characterisation of twelve newly synthesised N-(substituted phenyl)-2-chloroacetamides with QSAR analysis and antimicrobial activity tests" in Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology, 72, no. 1 (2021):70-79,
https://doi.org/10.2478/aiht-2021-72-3483 . .

TY  - JOUR
AU  - Apostolov, Suzana
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
AU  - Vastag, Gyongyi
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/9
AB  - The selected diphenylacetamide derivatives were subjected to chromatographic and in silico approach in order to obtain significant information about their structure-activity relationships. As an early step in the assessment of their biological profile, drug-likeness and lead-likeness rules were performed, as well as determination of the bioactivity scores. The relationships between the obtained chromatographic parameters and the relevant software lipophilicity/pharmacokinetic/toxicity predictors of the studied derivatives were examined by linear regression and multivariate methods. Beside the satisfactory linear relationships obtained for each applied system, the multivariate methods gave more concrete relations between the analyzed parameters of biological activity. Higher similarity between the chromatographic parameters (R (M) (0), C (0)), standard measure of lipophilicity and pharmacokinetic predictors was confirmed, while the chromatographic parameter m obtained in the same conditions exhibits better agreement with the bioactivity scores and toxicity parameters. Also, it was observed that the values of diphenylacetamide's biological activity parameters are in the greatest extent conditioned by the polarity of the substituent presented in its molecule.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Journal of Liquid Chromatography & Related Technologies
T1  - In silico approach in the assessment of chromatographic parameters as descriptors of diphenylacetamides' biological/pharmacological profile
EP  - 862
IS  - 19-20
SP  - 852
VL  - 43
DO  - 10.1080/10826076.2020.1835672
ER  - 

@article{
author = "Apostolov, Suzana and Mijin, Dušan and Petrović, Slobodan and Vastag, Gyongyi",
year = "2020",
abstract = "The selected diphenylacetamide derivatives were subjected to chromatographic and in silico approach in order to obtain significant information about their structure-activity relationships. As an early step in the assessment of their biological profile, drug-likeness and lead-likeness rules were performed, as well as determination of the bioactivity scores. The relationships between the obtained chromatographic parameters and the relevant software lipophilicity/pharmacokinetic/toxicity predictors of the studied derivatives were examined by linear regression and multivariate methods. Beside the satisfactory linear relationships obtained for each applied system, the multivariate methods gave more concrete relations between the analyzed parameters of biological activity. Higher similarity between the chromatographic parameters (R (M) (0), C (0)), standard measure of lipophilicity and pharmacokinetic predictors was confirmed, while the chromatographic parameter m obtained in the same conditions exhibits better agreement with the bioactivity scores and toxicity parameters. Also, it was observed that the values of diphenylacetamide's biological activity parameters are in the greatest extent conditioned by the polarity of the substituent presented in its molecule.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Journal of Liquid Chromatography & Related Technologies",
title = "In silico approach in the assessment of chromatographic parameters as descriptors of diphenylacetamides' biological/pharmacological profile",
pages = "862-852",
number = "19-20",
volume = "43",
doi = "10.1080/10826076.2020.1835672"
}

Apostolov, S., Mijin, D., Petrović, S.,& Vastag, G.. (2020). In silico approach in the assessment of chromatographic parameters as descriptors of diphenylacetamides' biological/pharmacological profile. in Journal of Liquid Chromatography & Related Technologies
Taylor & Francis Inc, Philadelphia., 43(19-20), 852-862.
https://doi.org/10.1080/10826076.2020.1835672

Apostolov S, Mijin D, Petrović S, Vastag G. In silico approach in the assessment of chromatographic parameters as descriptors of diphenylacetamides' biological/pharmacological profile. in Journal of Liquid Chromatography & Related Technologies. 2020;43(19-20):852-862.
doi:10.1080/10826076.2020.1835672 .

Apostolov, Suzana, Mijin, Dušan, Petrović, Slobodan, Vastag, Gyongyi, "In silico approach in the assessment of chromatographic parameters as descriptors of diphenylacetamides' biological/pharmacological profile" in Journal of Liquid Chromatography & Related Technologies, 43, no. 19-20 (2020):852-862,
https://doi.org/10.1080/10826076.2020.1835672 . .

TY  - JOUR
AU  - Vajdle, Olga
AU  - Šekuljica, Sanja
AU  - Guzsvány, Valéria
AU  - Nagy, László
AU  - Kónya, Zoltán
AU  - Avramov-Ivić, Milka
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
AU  - Anojčić, Jasmina
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4726
AB  - In this work, carbon paste electrode (CPE) and carbon paste electrode modified with gold nanoparticics (AuNPs/CPE) were employed with rapid direct anodic square wave voltammetry (SWV) for macrolide antibiotics erythromycin cthylsuccinate (EIS), azithromycin (A7.1), clarithromycin (OA) and roxithromycin (ROX) determination. The surface of working electrodes was morphologically characterized by scanning electron microscopic (SEM) measurements whereby the presence of randomly distributed AuNPs of 10 nm diameter size on CPE surface was confirmed by energy dispersive spectrometer (EDS). SWV determination of four macrolide antibiotics using CPE was performed in aqueous Britton-Robinson buffer solutions (pH 2.0 to 11.98) showing that oxidation signals strongly depend upon pH (at pH  gt = 6) and exhibited the most favorable characteristics at pH 8.0 in the case of EES and pH 11.98 in the case of AZI, CIA and ROX. Under optimized conditions, the SWV method using CPE enables determination of all investigated macrolide antibiotics in low mu g mL(-1) concentration ranges with relative standard deviations (RSDs) lower than 6% and achieved detection limits (1.0Ds) as 0.18, 0.045, 1.43 and 0.30 mu g mL(-1) for EES, AZI, CLA and ROX, respectively. In the case of AZ1 and ROX, it was demonstrated that the use of AuNPs/CPE as working electrode could additionally improve the results obtained with the SWV method concerning exhibited sensitivity, reproducibility and linear concentration range, due to the electrocatalytic properties of synthesized AuNPs. The optimized experimental parameters with the use of SWV method and CPF. or AuNPs/CPE were successfully applied for determination of ROX and AZI in their pharmaceutical preparations Runac (R) and Ilemomycine, respectively. The reliability of the elaborated procedures and thus the accuracy of the obtained results were validated by comparing them with those obtained by means of H PLC-DAD measurements.
PB  - Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations
VL  - 873
DO  - 10.1016/j.jelechem.2020.114324
ER  - 

@article{
author = "Vajdle, Olga and Šekuljica, Sanja and Guzsvány, Valéria and Nagy, László and Kónya, Zoltán and Avramov-Ivić, Milka and Mijin, Dušan and Petrović, Slobodan and Anojčić, Jasmina",
year = "2020",
abstract = "In this work, carbon paste electrode (CPE) and carbon paste electrode modified with gold nanoparticics (AuNPs/CPE) were employed with rapid direct anodic square wave voltammetry (SWV) for macrolide antibiotics erythromycin cthylsuccinate (EIS), azithromycin (A7.1), clarithromycin (OA) and roxithromycin (ROX) determination. The surface of working electrodes was morphologically characterized by scanning electron microscopic (SEM) measurements whereby the presence of randomly distributed AuNPs of 10 nm diameter size on CPE surface was confirmed by energy dispersive spectrometer (EDS). SWV determination of four macrolide antibiotics using CPE was performed in aqueous Britton-Robinson buffer solutions (pH 2.0 to 11.98) showing that oxidation signals strongly depend upon pH (at pH  gt = 6) and exhibited the most favorable characteristics at pH 8.0 in the case of EES and pH 11.98 in the case of AZI, CIA and ROX. Under optimized conditions, the SWV method using CPE enables determination of all investigated macrolide antibiotics in low mu g mL(-1) concentration ranges with relative standard deviations (RSDs) lower than 6% and achieved detection limits (1.0Ds) as 0.18, 0.045, 1.43 and 0.30 mu g mL(-1) for EES, AZI, CLA and ROX, respectively. In the case of AZ1 and ROX, it was demonstrated that the use of AuNPs/CPE as working electrode could additionally improve the results obtained with the SWV method concerning exhibited sensitivity, reproducibility and linear concentration range, due to the electrocatalytic properties of synthesized AuNPs. The optimized experimental parameters with the use of SWV method and CPF. or AuNPs/CPE were successfully applied for determination of ROX and AZI in their pharmaceutical preparations Runac (R) and Ilemomycine, respectively. The reliability of the elaborated procedures and thus the accuracy of the obtained results were validated by comparing them with those obtained by means of H PLC-DAD measurements.",
publisher = "Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations",
volume = "873",
doi = "10.1016/j.jelechem.2020.114324"
}

Vajdle, O., Šekuljica, S., Guzsvány, V., Nagy, L., Kónya, Z., Avramov-Ivić, M., Mijin, D., Petrović, S.,& Anojčić, J.. (2020). Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations. in Journal of Electroanalytical Chemistry
Elsevier B.V.., 873.
https://doi.org/10.1016/j.jelechem.2020.114324

Vajdle O, Šekuljica S, Guzsvány V, Nagy L, Kónya Z, Avramov-Ivić M, Mijin D, Petrović S, Anojčić J. Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations. in Journal of Electroanalytical Chemistry. 2020;873.
doi:10.1016/j.jelechem.2020.114324 .

Vajdle, Olga, Šekuljica, Sanja, Guzsvány, Valéria, Nagy, László, Kónya, Zoltán, Avramov-Ivić, Milka, Mijin, Dušan, Petrović, Slobodan, Anojčić, Jasmina, "Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations" in Journal of Electroanalytical Chemistry, 873 (2020),
https://doi.org/10.1016/j.jelechem.2020.114324 . .

TY  - JOUR
AU  - Vajdle, Olga
AU  - Šekuljica, Sanja
AU  - Guzsvány, Valéria
AU  - Nagy, László
AU  - Kónya, Zoltán
AU  - Avramov-Ivić, Milka
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
AU  - Anojčić, Jasmina
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4392
AB  - In this work, carbon paste electrode (CPE) and carbon paste electrode modified with gold nanoparticics (AuNPs/CPE) were employed with rapid direct anodic square wave voltammetry (SWV) for macrolide antibiotics erythromycin cthylsuccinate (EIS), azithromycin (A7.1), clarithromycin (OA) and roxithromycin (ROX) determination. The surface of working electrodes was morphologically characterized by scanning electron microscopic (SEM) measurements whereby the presence of randomly distributed AuNPs of 10 nm diameter size on CPE surface was confirmed by energy dispersive spectrometer (EDS). SWV determination of four macrolide antibiotics using CPE was performed in aqueous Britton-Robinson buffer solutions (pH 2.0 to 11.98) showing that oxidation signals strongly depend upon pH (at pH  gt = 6) and exhibited the most favorable characteristics at pH 8.0 in the case of EES and pH 11.98 in the case of AZI, CIA and ROX. Under optimized conditions, the SWV method using CPE enables determination of all investigated macrolide antibiotics in low mu g mL(-1) concentration ranges with relative standard deviations (RSDs) lower than 6% and achieved detection limits (1.0Ds) as 0.18, 0.045, 1.43 and 0.30 mu g mL(-1) for EES, AZI, CLA and ROX, respectively. In the case of AZ1 and ROX, it was demonstrated that the use of AuNPs/CPE as working electrode could additionally improve the results obtained with the SWV method concerning exhibited sensitivity, reproducibility and linear concentration range, due to the electrocatalytic properties of synthesized AuNPs. The optimized experimental parameters with the use of SWV method and CPF. or AuNPs/CPE were successfully applied for determination of ROX and AZI in their pharmaceutical preparations Runac (R) and Ilemomycine, respectively. The reliability of the elaborated procedures and thus the accuracy of the obtained results were validated by comparing them with those obtained by means of H PLC-DAD measurements.
PB  - Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations
SP  - 114324
VL  - 873
DO  - 10.1016/j.jelechem.2020.114324
ER  - 

@article{
author = "Vajdle, Olga and Šekuljica, Sanja and Guzsvány, Valéria and Nagy, László and Kónya, Zoltán and Avramov-Ivić, Milka and Mijin, Dušan and Petrović, Slobodan and Anojčić, Jasmina",
year = "2020",
abstract = "In this work, carbon paste electrode (CPE) and carbon paste electrode modified with gold nanoparticics (AuNPs/CPE) were employed with rapid direct anodic square wave voltammetry (SWV) for macrolide antibiotics erythromycin cthylsuccinate (EIS), azithromycin (A7.1), clarithromycin (OA) and roxithromycin (ROX) determination. The surface of working electrodes was morphologically characterized by scanning electron microscopic (SEM) measurements whereby the presence of randomly distributed AuNPs of 10 nm diameter size on CPE surface was confirmed by energy dispersive spectrometer (EDS). SWV determination of four macrolide antibiotics using CPE was performed in aqueous Britton-Robinson buffer solutions (pH 2.0 to 11.98) showing that oxidation signals strongly depend upon pH (at pH  gt = 6) and exhibited the most favorable characteristics at pH 8.0 in the case of EES and pH 11.98 in the case of AZI, CIA and ROX. Under optimized conditions, the SWV method using CPE enables determination of all investigated macrolide antibiotics in low mu g mL(-1) concentration ranges with relative standard deviations (RSDs) lower than 6% and achieved detection limits (1.0Ds) as 0.18, 0.045, 1.43 and 0.30 mu g mL(-1) for EES, AZI, CLA and ROX, respectively. In the case of AZ1 and ROX, it was demonstrated that the use of AuNPs/CPE as working electrode could additionally improve the results obtained with the SWV method concerning exhibited sensitivity, reproducibility and linear concentration range, due to the electrocatalytic properties of synthesized AuNPs. The optimized experimental parameters with the use of SWV method and CPF. or AuNPs/CPE were successfully applied for determination of ROX and AZI in their pharmaceutical preparations Runac (R) and Ilemomycine, respectively. The reliability of the elaborated procedures and thus the accuracy of the obtained results were validated by comparing them with those obtained by means of H PLC-DAD measurements.",
publisher = "Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations",
pages = "114324",
volume = "873",
doi = "10.1016/j.jelechem.2020.114324"
}

Vajdle, O., Šekuljica, S., Guzsvány, V., Nagy, L., Kónya, Z., Avramov-Ivić, M., Mijin, D., Petrović, S.,& Anojčić, J.. (2020). Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations. in Journal of Electroanalytical Chemistry
Elsevier B.V.., 873, 114324.
https://doi.org/10.1016/j.jelechem.2020.114324

Vajdle O, Šekuljica S, Guzsvány V, Nagy L, Kónya Z, Avramov-Ivić M, Mijin D, Petrović S, Anojčić J. Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations. in Journal of Electroanalytical Chemistry. 2020;873:114324.
doi:10.1016/j.jelechem.2020.114324 .

Vajdle, Olga, Šekuljica, Sanja, Guzsvány, Valéria, Nagy, László, Kónya, Zoltán, Avramov-Ivić, Milka, Mijin, Dušan, Petrović, Slobodan, Anojčić, Jasmina, "Use of carbon paste electrode and modified by gold nanoparticles for selected macrolide antibiotics determination as standard and in pharmaceutical preparations" in Journal of Electroanalytical Chemistry, 873 (2020):114324,
https://doi.org/10.1016/j.jelechem.2020.114324 . .

TY  - CONF
AU  - Marinković, Aleksandar
AU  - Milosavljević, Milutin
AU  - Kovačević, Tihomir
AU  - Kovačina, Jovanka
AU  - Milošević, Milena D.
AU  - Jovanović, Aleksandar
AU  - Petrović, Slobodan
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4421
AB  - Innovative technology has been developed for the production of gelcoat and materials of reduced flammability based on unsaturated polyester resins. These materials were synthesized from raw materials obtained from waste poly(ethylene terephthalate) (PET) and bio-renewable resources. The presented technologies respect the environmental legislative as well as the principles of green and circular economy. Resulting products can be applied in various industries (construction/building, mining, polymer processing etc.).
PB  - OOO «Centr «AЮMЭLЬ»
C3  - Catalogue of XVI International Salon of Inventions and New Technologies "New Time", Sevastopol, the
T1  - Eco-friendly technology for gel-coat and fireproofing material production using bio-renewable and waste materials
EP  - 180
SP  - 179
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4421
ER  - 

@conference{
author = "Marinković, Aleksandar and Milosavljević, Milutin and Kovačević, Tihomir and Kovačina, Jovanka and Milošević, Milena D. and Jovanović, Aleksandar and Petrović, Slobodan",
year = "2020",
abstract = "Innovative technology has been developed for the production of gelcoat and materials of reduced flammability based on unsaturated polyester resins. These materials were synthesized from raw materials obtained from waste poly(ethylene terephthalate) (PET) and bio-renewable resources. The presented technologies respect the environmental legislative as well as the principles of green and circular economy. Resulting products can be applied in various industries (construction/building, mining, polymer processing etc.).",
publisher = "OOO «Centr «AЮMЭLЬ»",
journal = "Catalogue of XVI International Salon of Inventions and New Technologies "New Time", Sevastopol, the",
title = "Eco-friendly technology for gel-coat and fireproofing material production using bio-renewable and waste materials",
pages = "180-179",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4421"
}

Marinković, A., Milosavljević, M., Kovačević, T., Kovačina, J., Milošević, M. D., Jovanović, A.,& Petrović, S.. (2020). Eco-friendly technology for gel-coat and fireproofing material production using bio-renewable and waste materials. in Catalogue of XVI International Salon of Inventions and New Technologies "New Time", Sevastopol, the
OOO «Centr «AЮMЭLЬ»., 179-180.
https://hdl.handle.net/21.15107/rcub_technorep_4421

Marinković A, Milosavljević M, Kovačević T, Kovačina J, Milošević MD, Jovanović A, Petrović S. Eco-friendly technology for gel-coat and fireproofing material production using bio-renewable and waste materials. in Catalogue of XVI International Salon of Inventions and New Technologies "New Time", Sevastopol, the. 2020;:179-180.
https://hdl.handle.net/21.15107/rcub_technorep_4421 .

Marinković, Aleksandar, Milosavljević, Milutin, Kovačević, Tihomir, Kovačina, Jovanka, Milošević, Milena D., Jovanović, Aleksandar, Petrović, Slobodan, "Eco-friendly technology for gel-coat and fireproofing material production using bio-renewable and waste materials" in Catalogue of XVI International Salon of Inventions and New Technologies "New Time", Sevastopol, the (2020):179-180,
https://hdl.handle.net/21.15107/rcub_technorep_4421 .

TY  - JOUR
AU  - Bogdanović, Aleksandra
AU  - Tadić, Vanja
AU  - Petrović, Slobodan
AU  - Skala, Dejan
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4543
AB  - Supercritical CO2 extraction was applied on fenugreek (Trigonella foenum-graecum L., Fabaceae) seeds with the aim to define optimal process conditions to obtain the maximal extract yields content of steroidal sapogenins. Central composite rotatable design (CCRD) combined with response surface methodology (RSM) was applied to determine optimal process conditions defined by the influence and interaction of pressure, temperature and time of extraction through consumption of SC CO2. Optimization experiments revealed that the pressure of 24.73 MPa, the temperature of 38.2 degrees C and the consumption of SC CO2 of 19.24 g/g(DM) were the best process conditions enabling the maximal yield of extract and gain of the highest content of sapogenins. The optimal values of pressure and temperature defined SC CO2 density of 885.47 kg/m(3), which provided the maximal yield of the extract with the highest content of steroidal sapogenins. The achieved yield of extract at these conditions was 0.073g/g(DM), with 0.774 mg/g(DM) diosgenin, 0.477 mg/g(DM) protodioscin, 0.713 mg/g(DM) sarsapogenin and 0.205 mg/g(DM) oleanolic and ursolic acid with a significant quantity of 2.475 mg/g(DM) in the obtained extract.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Supercritical CO2 extraction of steroidal sapogenins from fenugreek (tngonella foenum-graecum l.) Seed
EP  - 182
IS  - 2
SP  - 171
VL  - 26
DO  - 10.2298/CICEQ191001036B
ER  - 

@article{
author = "Bogdanović, Aleksandra and Tadić, Vanja and Petrović, Slobodan and Skala, Dejan",
year = "2020",
abstract = "Supercritical CO2 extraction was applied on fenugreek (Trigonella foenum-graecum L., Fabaceae) seeds with the aim to define optimal process conditions to obtain the maximal extract yields content of steroidal sapogenins. Central composite rotatable design (CCRD) combined with response surface methodology (RSM) was applied to determine optimal process conditions defined by the influence and interaction of pressure, temperature and time of extraction through consumption of SC CO2. Optimization experiments revealed that the pressure of 24.73 MPa, the temperature of 38.2 degrees C and the consumption of SC CO2 of 19.24 g/g(DM) were the best process conditions enabling the maximal yield of extract and gain of the highest content of sapogenins. The optimal values of pressure and temperature defined SC CO2 density of 885.47 kg/m(3), which provided the maximal yield of the extract with the highest content of steroidal sapogenins. The achieved yield of extract at these conditions was 0.073g/g(DM), with 0.774 mg/g(DM) diosgenin, 0.477 mg/g(DM) protodioscin, 0.713 mg/g(DM) sarsapogenin and 0.205 mg/g(DM) oleanolic and ursolic acid with a significant quantity of 2.475 mg/g(DM) in the obtained extract.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Supercritical CO2 extraction of steroidal sapogenins from fenugreek (tngonella foenum-graecum l.) Seed",
pages = "182-171",
number = "2",
volume = "26",
doi = "10.2298/CICEQ191001036B"
}

Bogdanović, A., Tadić, V., Petrović, S.,& Skala, D.. (2020). Supercritical CO2 extraction of steroidal sapogenins from fenugreek (tngonella foenum-graecum l.) Seed. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 26(2), 171-182.
https://doi.org/10.2298/CICEQ191001036B

Bogdanović A, Tadić V, Petrović S, Skala D. Supercritical CO2 extraction of steroidal sapogenins from fenugreek (tngonella foenum-graecum l.) Seed. in Chemical Industry & Chemical Engineering Quarterly. 2020;26(2):171-182.
doi:10.2298/CICEQ191001036B .

Bogdanović, Aleksandra, Tadić, Vanja, Petrović, Slobodan, Skala, Dejan, "Supercritical CO2 extraction of steroidal sapogenins from fenugreek (tngonella foenum-graecum l.) Seed" in Chemical Industry & Chemical Engineering Quarterly, 26, no. 2 (2020):171-182,
https://doi.org/10.2298/CICEQ191001036B . .

TY  - JOUR
AU  - Jović, Branislav
AU  - Kordić, Branko
AU  - Miskov, Vukoslava
AU  - Tricković, Jelena
AU  - Kovacević, Marina
AU  - Petrović, Slobodan
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4349
AB  - In this study, the adsorption equilibrium and diffusivity parameters of p-nitrophenol were estimated for water containing different concentrations of secondary amides. Commercial powdered activated carbon was used as an adsorbent. The external mass transfer coefficient (k(f)), the surface diffusion coefficient (D-s) and the standard free Gibbs energy were calculated for p-nitrophenol in the presence of different secondary amide concentrations. The analysis established that there are correlations between structural parameters of amides, on the one hand, and diffusion and thermodynamic parameters for p-nitrophenol adsorption process, on the other. It was noticed that voluminous hydrophobic amides decreased the adsorption capacity of p-nitrophenol on activated carbon. On the basis of the results obtained for external mass transfer coefficients, it is assumed that amides cause the reduction of adsorption capacity of p-nitrophenol onto activated carbon by concentrating at the solid/liquid interface.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - Amides as a model system of low molar mass algal organic matter. Influence on the adsorption of p-nitrophenol on activated carbon
EP  - 66
IS  - 1
SP  - 59
VL  - 13
DO  - 10.1016/j.arabjc.2017.01.016
ER  - 

@article{
author = "Jović, Branislav and Kordić, Branko and Miskov, Vukoslava and Tricković, Jelena and Kovacević, Marina and Petrović, Slobodan",
year = "2020",
abstract = "In this study, the adsorption equilibrium and diffusivity parameters of p-nitrophenol were estimated for water containing different concentrations of secondary amides. Commercial powdered activated carbon was used as an adsorbent. The external mass transfer coefficient (k(f)), the surface diffusion coefficient (D-s) and the standard free Gibbs energy were calculated for p-nitrophenol in the presence of different secondary amide concentrations. The analysis established that there are correlations between structural parameters of amides, on the one hand, and diffusion and thermodynamic parameters for p-nitrophenol adsorption process, on the other. It was noticed that voluminous hydrophobic amides decreased the adsorption capacity of p-nitrophenol on activated carbon. On the basis of the results obtained for external mass transfer coefficients, it is assumed that amides cause the reduction of adsorption capacity of p-nitrophenol onto activated carbon by concentrating at the solid/liquid interface.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "Amides as a model system of low molar mass algal organic matter. Influence on the adsorption of p-nitrophenol on activated carbon",
pages = "66-59",
number = "1",
volume = "13",
doi = "10.1016/j.arabjc.2017.01.016"
}

Jović, B., Kordić, B., Miskov, V., Tricković, J., Kovacević, M.,& Petrović, S.. (2020). Amides as a model system of low molar mass algal organic matter. Influence on the adsorption of p-nitrophenol on activated carbon. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 13(1), 59-66.
https://doi.org/10.1016/j.arabjc.2017.01.016

Jović B, Kordić B, Miskov V, Tricković J, Kovacević M, Petrović S. Amides as a model system of low molar mass algal organic matter. Influence on the adsorption of p-nitrophenol on activated carbon. in Arabian Journal of Chemistry. 2020;13(1):59-66.
doi:10.1016/j.arabjc.2017.01.016 .

Jović, Branislav, Kordić, Branko, Miskov, Vukoslava, Tricković, Jelena, Kovacević, Marina, Petrović, Slobodan, "Amides as a model system of low molar mass algal organic matter. Influence on the adsorption of p-nitrophenol on activated carbon" in Arabian Journal of Chemistry, 13, no. 1 (2020):59-66,
https://doi.org/10.1016/j.arabjc.2017.01.016 . .

TY  - JOUR
AU  - Despotović, Vesna
AU  - Kordić, Branko
AU  - Kovacević, M.
AU  - Petrović, Slobodan
AU  - Jović, B.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4317
AB  - This paper reports FT-IR and FT-NIR spectroscopic study of hydrogen bonding between N-mono-substituted caproamides and different ethers (diethyl ether and tetrahydrofuran) in carbon tetrachloride. With increase in ether concentration increase in intensity of red-shifted band, and decrease of intensity of monomer band has been observed. The MIR and NIR spectroscopic characteristics for N-H center dot center dot center dot O hydrogen bonded complexes and also the equilibrium constants for 1:1 complex formation are given. Further, influence of structural differences of ethers on hydrogen bonding was investigated using Taft equation. Good correlation between logarithm of formation constants and Taft steric and inductive factors has been obtained only for tetrahydrofuran in MIR range.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Structure
T1  - Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study
EP  - 24
SP  - 19
VL  - 1181
DO  - 10.1016/j.molstruc.2018.12.081
ER  - 

@article{
author = "Despotović, Vesna and Kordić, Branko and Kovacević, M. and Petrović, Slobodan and Jović, B.",
year = "2019",
abstract = "This paper reports FT-IR and FT-NIR spectroscopic study of hydrogen bonding between N-mono-substituted caproamides and different ethers (diethyl ether and tetrahydrofuran) in carbon tetrachloride. With increase in ether concentration increase in intensity of red-shifted band, and decrease of intensity of monomer band has been observed. The MIR and NIR spectroscopic characteristics for N-H center dot center dot center dot O hydrogen bonded complexes and also the equilibrium constants for 1:1 complex formation are given. Further, influence of structural differences of ethers on hydrogen bonding was investigated using Taft equation. Good correlation between logarithm of formation constants and Taft steric and inductive factors has been obtained only for tetrahydrofuran in MIR range.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Structure",
title = "Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study",
pages = "24-19",
volume = "1181",
doi = "10.1016/j.molstruc.2018.12.081"
}

Despotović, V., Kordić, B., Kovacević, M., Petrović, S.,& Jović, B.. (2019). Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study. in Journal of Molecular Structure
Elsevier Science Bv, Amsterdam., 1181, 19-24.
https://doi.org/10.1016/j.molstruc.2018.12.081

Despotović V, Kordić B, Kovacević M, Petrović S, Jović B. Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study. in Journal of Molecular Structure. 2019;1181:19-24.
doi:10.1016/j.molstruc.2018.12.081 .

Despotović, Vesna, Kordić, Branko, Kovacević, M., Petrović, Slobodan, Jović, B., "Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study" in Journal of Molecular Structure, 1181 (2019):19-24,
https://doi.org/10.1016/j.molstruc.2018.12.081 . .

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Petrović, Slobodan
AU  - Valentić, Nataša
AU  - Mijin, Dušan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4278
AB  - Milling of cyanoacetamide and acetoacetic ester as reactants, in the presence of KOH as the catalyst and ethanol as a viscous control agent (VCA) was performed in a planetary ball mill with the goal of investigating the effect of mechanochemical treatment for the synthesis of 3-cyano-6hydroxy-4-methyl-2-pyridone at room temperature. The mechanochemical synthesis was performed under various milling parameters, i.e. milling time up to 4 h, number and size of balls, angular velocity as well as molar ratio of reactants and the amount of catalyst. The obtained product was characterized by m.p., UV, IR and NMR data. It was fond that the dominant process parameter is the milling time while others are of less importance. The highest isolated yield after milling was up to 56%. The combination of milling and aging increase yield over 60%.
AB  - Mlevenje cijanoacetoamida (2) i acetsirćetnog estra (1) kao reaktanata, u prisustvu KOH kao katalizatora i etanola kao agensa kojim se kontroliše viskoznost, izvedeno je u planetarnom mlinu radi ispitivanja mogućnosti mehanohemijske sinteze 3-cijano-6-hidroksi-4-metil-2-piridona (3) na sobnoj temperaturi. Mehanohemijski tretman je izveden sa različitim parametrima mlevenja: vremenom mlevenja do 4 h, različitom veličinom i brojem kuglica, različitom brzinom obrtanja, kao i različitim molarnim odnosom reaktanata i katalizatora. Dobijeni proizvod je okarakterisan određivanjem temperature topljenja, UV, IR i NMR analizama. Nađeno je da je dominantni procesni parametar vreme mlevenja, dok su ostali od manjeg uticaja. Najveći prinos izolovanog proizvoda je oko 56%, dok se naknadnim "odležavanjem" prinos povećava preko 60%.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature
T1  - O sintezi 3-cijano-6-hidroksi-4-metil-2-piridona na sobnoj temperaturi
EP  - 236
IS  - 3
SP  - 229
VL  - 60
DO  - 10.5937/zasmat1903229Z
ER  - 

@article{
author = "Zdujić, Miodrag and Petrović, Slobodan and Valentić, Nataša and Mijin, Dušan",
year = "2019",
abstract = "Milling of cyanoacetamide and acetoacetic ester as reactants, in the presence of KOH as the catalyst and ethanol as a viscous control agent (VCA) was performed in a planetary ball mill with the goal of investigating the effect of mechanochemical treatment for the synthesis of 3-cyano-6hydroxy-4-methyl-2-pyridone at room temperature. The mechanochemical synthesis was performed under various milling parameters, i.e. milling time up to 4 h, number and size of balls, angular velocity as well as molar ratio of reactants and the amount of catalyst. The obtained product was characterized by m.p., UV, IR and NMR data. It was fond that the dominant process parameter is the milling time while others are of less importance. The highest isolated yield after milling was up to 56%. The combination of milling and aging increase yield over 60%., Mlevenje cijanoacetoamida (2) i acetsirćetnog estra (1) kao reaktanata, u prisustvu KOH kao katalizatora i etanola kao agensa kojim se kontroliše viskoznost, izvedeno je u planetarnom mlinu radi ispitivanja mogućnosti mehanohemijske sinteze 3-cijano-6-hidroksi-4-metil-2-piridona (3) na sobnoj temperaturi. Mehanohemijski tretman je izveden sa različitim parametrima mlevenja: vremenom mlevenja do 4 h, različitom veličinom i brojem kuglica, različitom brzinom obrtanja, kao i različitim molarnim odnosom reaktanata i katalizatora. Dobijeni proizvod je okarakterisan određivanjem temperature topljenja, UV, IR i NMR analizama. Nađeno je da je dominantni procesni parametar vreme mlevenja, dok su ostali od manjeg uticaja. Najveći prinos izolovanog proizvoda je oko 56%, dok se naknadnim "odležavanjem" prinos povećava preko 60%.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature, O sintezi 3-cijano-6-hidroksi-4-metil-2-piridona na sobnoj temperaturi",
pages = "236-229",
number = "3",
volume = "60",
doi = "10.5937/zasmat1903229Z"
}

Zdujić, M., Petrović, S., Valentić, N.,& Mijin, D.. (2019). On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 60(3), 229-236.
https://doi.org/10.5937/zasmat1903229Z

Zdujić M, Petrović S, Valentić N, Mijin D. On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature. in Zaštita materijala. 2019;60(3):229-236.
doi:10.5937/zasmat1903229Z .

Zdujić, Miodrag, Petrović, Slobodan, Valentić, Nataša, Mijin, Dušan, "On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature" in Zaštita materijala, 60, no. 3 (2019):229-236,
https://doi.org/10.5937/zasmat1903229Z . .

TY  - JOUR
AU  - Tomašević, Anđelka
AU  - Petrović, Slobodan
AU  - Mijin, Dušan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4269
AB  - A large number of pesticide active ingredients have been registered and marketed for pest control purposes around the world. Most pesticides, including carbamates are resistant to chemical and natural photochemical degradation, so that developing adequate methods for remediation of contaminated waters is a priority. There are different methods for removing carbamate pesticide residues from water, and photodegradation methods are discussed in this study. According to literature data, the most beneficial photochemical processes for removal of pesticides from water are two well-known Advanced Oxidation Processes: heterogeneous photocatalysis with semiconductor oxides TiO2 and ZnO, and homogeneous photo-Fenton treatment, as well as direct UV photolysis. Photochemical investigations may contribute toward our better understanding of carbamate pesticide behavior in the environment, i.e. more information on the degradation time of active ingredients, their activity and environmental fate can be obtained by studying the kinetics of any photochemical reaction.
AB  - U cilju zaštite bilja u svetu je registrovan i u prometu se nalazi veliki broj aktivnih materija pesticida. Većina pesticida, uključujući karbamate je otporna na hemijske i prirodne fotohemijske degradacije i zato je prioritet razvijanje odgovarajućih metoda za prečišćavanje zagađenih voda. Postoje različite metode za odstranjivanje ostataka karbamatnih pesticide iz vode a u ovom radu su razmatrane fotodegradacione metode. Prema literaturnim podacima najkorisniji fotohemijski procesi za uklanjanje pesticide iz vode su dva dobro poznata Viša oksidaciona procesa: heterogena fotokataliza u prisustvu poluprovodnih oksida TiO2 i ZnO, i homogeni foto-Fenton postupak, isto kao i direktna ultraljubičasta fotoliza. Fotohemijska istraživanja doprinose boljem razumevanju ponašanja karbamatnih pesticida u životnoj sredini i puno informacija o vremenu degradacije aktivnih materija, njihovoj aktivnosti i sudbini u životnoj sredini može se dobiti proučavanjem kinetike svake fotohemijske reakcije.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Advanced Technologies
T1  - Photochemical processes for removal of carbamate pesticides from water
T1  - Fotohemijski procesi za uklanjanje karbamatnih pesticida iz vode
EP  - 81
IS  - 2
SP  - 72
VL  - 8
DO  - 10.5937/savteh1902072T
ER  - 

@article{
author = "Tomašević, Anđelka and Petrović, Slobodan and Mijin, Dušan",
year = "2019",
abstract = "A large number of pesticide active ingredients have been registered and marketed for pest control purposes around the world. Most pesticides, including carbamates are resistant to chemical and natural photochemical degradation, so that developing adequate methods for remediation of contaminated waters is a priority. There are different methods for removing carbamate pesticide residues from water, and photodegradation methods are discussed in this study. According to literature data, the most beneficial photochemical processes for removal of pesticides from water are two well-known Advanced Oxidation Processes: heterogeneous photocatalysis with semiconductor oxides TiO2 and ZnO, and homogeneous photo-Fenton treatment, as well as direct UV photolysis. Photochemical investigations may contribute toward our better understanding of carbamate pesticide behavior in the environment, i.e. more information on the degradation time of active ingredients, their activity and environmental fate can be obtained by studying the kinetics of any photochemical reaction., U cilju zaštite bilja u svetu je registrovan i u prometu se nalazi veliki broj aktivnih materija pesticida. Većina pesticida, uključujući karbamate je otporna na hemijske i prirodne fotohemijske degradacije i zato je prioritet razvijanje odgovarajućih metoda za prečišćavanje zagađenih voda. Postoje različite metode za odstranjivanje ostataka karbamatnih pesticide iz vode a u ovom radu su razmatrane fotodegradacione metode. Prema literaturnim podacima najkorisniji fotohemijski procesi za uklanjanje pesticide iz vode su dva dobro poznata Viša oksidaciona procesa: heterogena fotokataliza u prisustvu poluprovodnih oksida TiO2 i ZnO, i homogeni foto-Fenton postupak, isto kao i direktna ultraljubičasta fotoliza. Fotohemijska istraživanja doprinose boljem razumevanju ponašanja karbamatnih pesticida u životnoj sredini i puno informacija o vremenu degradacije aktivnih materija, njihovoj aktivnosti i sudbini u životnoj sredini može se dobiti proučavanjem kinetike svake fotohemijske reakcije.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Advanced Technologies",
title = "Photochemical processes for removal of carbamate pesticides from water, Fotohemijski procesi za uklanjanje karbamatnih pesticida iz vode",
pages = "81-72",
number = "2",
volume = "8",
doi = "10.5937/savteh1902072T"
}

Tomašević, A., Petrović, S.,& Mijin, D.. (2019). Photochemical processes for removal of carbamate pesticides from water. in Advanced Technologies
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 8(2), 72-81.
https://doi.org/10.5937/savteh1902072T

Tomašević A, Petrović S, Mijin D. Photochemical processes for removal of carbamate pesticides from water. in Advanced Technologies. 2019;8(2):72-81.
doi:10.5937/savteh1902072T .

Tomašević, Anđelka, Petrović, Slobodan, Mijin, Dušan, "Photochemical processes for removal of carbamate pesticides from water" in Advanced Technologies, 8, no. 2 (2019):72-81,
https://doi.org/10.5937/savteh1902072T . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Lađarević, Jelena
AU  - Mijin, Dušan
AU  - Jadranin, Milka
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4102
AB  - In this study the electrochemical behavior of metformin (MET), oral antihyperglycaemic agent, was assayed at three different electrodes. The drug standard was investigated by cyclic voltammetry and square wave voltammetry via its electrooxidation at Au and glassy carbon electrode in 0.05 M NaHCO3. Under these conditions transformation of MET to corresponding N-carbonyl guanidine via oxime intermediate is suggested. The stability of MET was tested under directed stress conditions using IrOx electrode with sodium sulphate as an electrolyte and cyclic 4-amino-2-imino-1-methyl-1,2-dihydro-1,3,5-triazine appeared as the main end-product. The courses of the electrochemical processes at three electrodes were followed by UV spectroscopy and evaluated by total organic carbon analysis.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes
EP  - 1327
IS  - 11
SP  - 1319
VL  - 84
DO  - 10.2298/JSC190731091L
ER  - 

@article{
author = "Lović, Jelena and Lađarević, Jelena and Mijin, Dušan and Jadranin, Milka and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2019",
abstract = "In this study the electrochemical behavior of metformin (MET), oral antihyperglycaemic agent, was assayed at three different electrodes. The drug standard was investigated by cyclic voltammetry and square wave voltammetry via its electrooxidation at Au and glassy carbon electrode in 0.05 M NaHCO3. Under these conditions transformation of MET to corresponding N-carbonyl guanidine via oxime intermediate is suggested. The stability of MET was tested under directed stress conditions using IrOx electrode with sodium sulphate as an electrolyte and cyclic 4-amino-2-imino-1-methyl-1,2-dihydro-1,3,5-triazine appeared as the main end-product. The courses of the electrochemical processes at three electrodes were followed by UV spectroscopy and evaluated by total organic carbon analysis.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes",
pages = "1327-1319",
number = "11",
volume = "84",
doi = "10.2298/JSC190731091L"
}

Lović, J., Lađarević, J., Mijin, D., Jadranin, M., Petrović, S.,& Avramov-Ivić, M.. (2019). Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 84(11), 1319-1327.
https://doi.org/10.2298/JSC190731091L

Lović J, Lađarević J, Mijin D, Jadranin M, Petrović S, Avramov-Ivić M. Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes. in Journal of the Serbian Chemical Society. 2019;84(11):1319-1327.
doi:10.2298/JSC190731091L .

Lović, Jelena, Lađarević, Jelena, Mijin, Dušan, Jadranin, Milka, Petrović, Slobodan, Avramov-Ivić, Milka, "Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes" in Journal of the Serbian Chemical Society, 84, no. 11 (2019):1319-1327,
https://doi.org/10.2298/JSC190731091L . .

TY  - JOUR
AU  - Avramov-Ivić, Milka
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša
AU  - Trišović, Nemanja
AU  - Lađarević, Jelena
AU  - Vuković, Dragan
AU  - Drmanić, Saša
AU  - Mladenović, Aleksandar R.
AU  - Jadranin, Milka
AU  - Petrović, Slobodan
AU  - Mijin, Dušan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4306
AB  - Esomeprazole is the most effective of the proton-pump inhibitors for the acid-related diseases and at first was examined for the electroanalytical purposes. The drug standard and as a content of injection powder was investigated by cyclic voltammetry (CV) and quantitatively determined using square wave voltammetry (SWV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. SWV showed a linear dependency of the anodic peak currents vs. esomeprazole standard concentrations in the range from 3.0 to 500 mu g mL(-1) with the values of limit of detection (LOD) and limit of quantification (LOQ): 1.4 and 4.6 mu g mL(-1), respectively. Using the constructed and validated calibration curve, the values of unknown esomeprazole concentrations in injection powder and in human serum spiked with standard were determined. Before the electrochemical oxidation, it was shown by atomic force microscopy (AFM) that the small esomeprazole islands formed inside holes were visible and their diameter was about 200 nm attributed to physico-chemical characteristics of esomeprazole. After the electrochemical oxidation, the morphology of esomeprazole standard on Au surface was completely changed and composed of spherical particles in a diameter between 200 and 600 nm. With esomeprazole suspended in human serum, the process of crystallization partly occurred in the form of spherical grains with the average size of these grains was about 4 gm. The analysis at the macro level done by the optical microscopy (OM) confirmed this opinion. The study of esomeprazole degradation showed that at Au electrode, after 3 h of cycling, a neglectable amount of the esomeprazole was changed. Using IrOx electrode under directed stress conditions, its almost complete degradation was realized after 3 h confirmed by high performance liquid chromatography (HPLC). Total organic carbon (TOC) analysis showed that 95% of esomeprazole was mineralized. The HPLC and Liquid chromatography-mass spectrometry (LC-MS) study revealed the formation of 4-hydroxy omeprazole sulphide, 4-hydroxy omeprazole sulphone, esomeprazole sulphone and methylated esomeprazole.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation
VL  - 848
DO  - 10.1016/j.jelechem.2019.113303
ER  - 

@article{
author = "Avramov-Ivić, Milka and Lović, Jelena and Stevanović, Sanja and Nikolić, Nebojša and Trišović, Nemanja and Lađarević, Jelena and Vuković, Dragan and Drmanić, Saša and Mladenović, Aleksandar R. and Jadranin, Milka and Petrović, Slobodan and Mijin, Dušan",
year = "2019",
abstract = "Esomeprazole is the most effective of the proton-pump inhibitors for the acid-related diseases and at first was examined for the electroanalytical purposes. The drug standard and as a content of injection powder was investigated by cyclic voltammetry (CV) and quantitatively determined using square wave voltammetry (SWV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. SWV showed a linear dependency of the anodic peak currents vs. esomeprazole standard concentrations in the range from 3.0 to 500 mu g mL(-1) with the values of limit of detection (LOD) and limit of quantification (LOQ): 1.4 and 4.6 mu g mL(-1), respectively. Using the constructed and validated calibration curve, the values of unknown esomeprazole concentrations in injection powder and in human serum spiked with standard were determined. Before the electrochemical oxidation, it was shown by atomic force microscopy (AFM) that the small esomeprazole islands formed inside holes were visible and their diameter was about 200 nm attributed to physico-chemical characteristics of esomeprazole. After the electrochemical oxidation, the morphology of esomeprazole standard on Au surface was completely changed and composed of spherical particles in a diameter between 200 and 600 nm. With esomeprazole suspended in human serum, the process of crystallization partly occurred in the form of spherical grains with the average size of these grains was about 4 gm. The analysis at the macro level done by the optical microscopy (OM) confirmed this opinion. The study of esomeprazole degradation showed that at Au electrode, after 3 h of cycling, a neglectable amount of the esomeprazole was changed. Using IrOx electrode under directed stress conditions, its almost complete degradation was realized after 3 h confirmed by high performance liquid chromatography (HPLC). Total organic carbon (TOC) analysis showed that 95% of esomeprazole was mineralized. The HPLC and Liquid chromatography-mass spectrometry (LC-MS) study revealed the formation of 4-hydroxy omeprazole sulphide, 4-hydroxy omeprazole sulphone, esomeprazole sulphone and methylated esomeprazole.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation",
volume = "848",
doi = "10.1016/j.jelechem.2019.113303"
}

Avramov-Ivić, M., Lović, J., Stevanović, S., Nikolić, N., Trišović, N., Lađarević, J., Vuković, D., Drmanić, S., Mladenović, A. R., Jadranin, M., Petrović, S.,& Mijin, D.. (2019). Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 848.
https://doi.org/10.1016/j.jelechem.2019.113303

Avramov-Ivić M, Lović J, Stevanović S, Nikolić N, Trišović N, Lađarević J, Vuković D, Drmanić S, Mladenović AR, Jadranin M, Petrović S, Mijin D. Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation. in Journal of Electroanalytical Chemistry. 2019;848.
doi:10.1016/j.jelechem.2019.113303 .

Avramov-Ivić, Milka, Lović, Jelena, Stevanović, Sanja, Nikolić, Nebojša, Trišović, Nemanja, Lađarević, Jelena, Vuković, Dragan, Drmanić, Saša, Mladenović, Aleksandar R., Jadranin, Milka, Petrović, Slobodan, Mijin, Dušan, "Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation" in Journal of Electroanalytical Chemistry, 848 (2019),
https://doi.org/10.1016/j.jelechem.2019.113303 . .

TY  - JOUR
AU  - Matijević, Borko M.
AU  - Vaštag, Đenđi
AU  - Apostolov, Suzana
AU  - Milčić, Miloš
AU  - Marinković, Aleksandar
AU  - Petrović, Slobodan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4116
AB  - The UV absorption spectra of twelve N-(substituted phenyl)-2-chloroacetamides were recorded in eighteen solvents. The effect of specific and non-specific solvent-solute interactions on the absorption maxima shifts was evaluated by using the Kamlet-Taft solvent parameter set, i.e. applying linear solvation energy relationships (LSER) principles. Optimized geometries and experimental results were interpreted by using DFT (B3LYP/6-311+G(d,p) method) and time-dependent density functional (TD-DFT) method. Overall electron density in both ground and excited state was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. It was found that both solvent and substituents cause appropriate change of the extent of conjugation in the molecules that further affect their intra-molecular charge transfer (ICT) character. Linear free energy relationships (LFERs) were applied to the substituent-induced NMR chemical shifts (SCS) using single substituent parameter (SSP) and dual substituent parameter (DSP) model. Transmission mode of the electronic effects of substituent was discussed according to the results of theoretical calculations and results of LFER correlations. Comparative analysis of presented results with the ones published for structurally similar series of amide which contained cyano group, instead chlorine, provides additional information on the impact of present group to the properties of investigated compound.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study
EP  - 3379
IS  - 8
SP  - 3367
VL  - 12
DO  - 10.1016/j.arabjc.2015.09.008
ER  - 

@article{
author = "Matijević, Borko M. and Vaštag, Đenđi and Apostolov, Suzana and Milčić, Miloš and Marinković, Aleksandar and Petrović, Slobodan",
year = "2019",
abstract = "The UV absorption spectra of twelve N-(substituted phenyl)-2-chloroacetamides were recorded in eighteen solvents. The effect of specific and non-specific solvent-solute interactions on the absorption maxima shifts was evaluated by using the Kamlet-Taft solvent parameter set, i.e. applying linear solvation energy relationships (LSER) principles. Optimized geometries and experimental results were interpreted by using DFT (B3LYP/6-311+G(d,p) method) and time-dependent density functional (TD-DFT) method. Overall electron density in both ground and excited state was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. It was found that both solvent and substituents cause appropriate change of the extent of conjugation in the molecules that further affect their intra-molecular charge transfer (ICT) character. Linear free energy relationships (LFERs) were applied to the substituent-induced NMR chemical shifts (SCS) using single substituent parameter (SSP) and dual substituent parameter (DSP) model. Transmission mode of the electronic effects of substituent was discussed according to the results of theoretical calculations and results of LFER correlations. Comparative analysis of presented results with the ones published for structurally similar series of amide which contained cyano group, instead chlorine, provides additional information on the impact of present group to the properties of investigated compound.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study",
pages = "3379-3367",
number = "8",
volume = "12",
doi = "10.1016/j.arabjc.2015.09.008"
}

Matijević, B. M., Vaštag, Đ., Apostolov, S., Milčić, M., Marinković, A.,& Petrović, S.. (2019). N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 12(8), 3367-3379.
https://doi.org/10.1016/j.arabjc.2015.09.008

Matijević BM, Vaštag Đ, Apostolov S, Milčić M, Marinković A, Petrović S. N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study. in Arabian Journal of Chemistry. 2019;12(8):3367-3379.
doi:10.1016/j.arabjc.2015.09.008 .

Matijević, Borko M., Vaštag, Đenđi, Apostolov, Suzana, Milčić, Miloš, Marinković, Aleksandar, Petrović, Slobodan, "N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study" in Arabian Journal of Chemistry, 12, no. 8 (2019):3367-3379,
https://doi.org/10.1016/j.arabjc.2015.09.008 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Anđelković, Boban D.
AU  - Petrović, Slobodan
AU  - Vuković, Dragan
AU  - Prlainović, Nevena
AU  - Mijin, Dušan
AU  - Nikolić, Nebojša
AU  - Avramov-Ivić, Milka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3907
AB  - Glucose biosensor containing cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is constructed and already electrochemically tested. Now, the electrochemical behavior of biosensor in human serum is further investigated and supported by morphological characterization of layers for the first time. The morphology and microstructure of layers was examined by Fourier transformed infra red spectroscopy (FTIR), atomic force (AFM) and optical microscopy (OM). The electrochemical indication that the Cys-GA-GOx film on Au surface is not compact and that there were some bare regions which remain catalytically active is supported by AFM and OM results. The construction and the nature of bonding of Au-Cys-GA-GOx biosensor layers is confirmed by the FTIR study.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode
EP  - 12348
IS  - 12
SP  - 12340
VL  - 13
DO  - 10.20964/2018.12.59
ER  - 

@article{
author = "Lović, Jelena and Stevanović, Sanja and Anđelković, Boban D. and Petrović, Slobodan and Vuković, Dragan and Prlainović, Nevena and Mijin, Dušan and Nikolić, Nebojša and Avramov-Ivić, Milka",
year = "2018",
abstract = "Glucose biosensor containing cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is constructed and already electrochemically tested. Now, the electrochemical behavior of biosensor in human serum is further investigated and supported by morphological characterization of layers for the first time. The morphology and microstructure of layers was examined by Fourier transformed infra red spectroscopy (FTIR), atomic force (AFM) and optical microscopy (OM). The electrochemical indication that the Cys-GA-GOx film on Au surface is not compact and that there were some bare regions which remain catalytically active is supported by AFM and OM results. The construction and the nature of bonding of Au-Cys-GA-GOx biosensor layers is confirmed by the FTIR study.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode",
pages = "12348-12340",
number = "12",
volume = "13",
doi = "10.20964/2018.12.59"
}

Lović, J., Stevanović, S., Anđelković, B. D., Petrović, S., Vuković, D., Prlainović, N., Mijin, D., Nikolić, N.,& Avramov-Ivić, M.. (2018). Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 13(12), 12340-12348.
https://doi.org/10.20964/2018.12.59

Lović J, Stevanović S, Anđelković BD, Petrović S, Vuković D, Prlainović N, Mijin D, Nikolić N, Avramov-Ivić M. Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode. in International Journal of Electrochemical Science. 2018;13(12):12340-12348.
doi:10.20964/2018.12.59 .

Lović, Jelena, Stevanović, Sanja, Anđelković, Boban D., Petrović, Slobodan, Vuković, Dragan, Prlainović, Nevena, Mijin, Dušan, Nikolić, Nebojša, Avramov-Ivić, Milka, "Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode" in International Journal of Electrochemical Science, 13, no. 12 (2018):12340-12348,
https://doi.org/10.20964/2018.12.59 . .

TY  - JOUR
AU  - Durdević, Sanja
AU  - Šavikin, Katarina
AU  - Živković, Jelena Č.
AU  - Boehm, Volker
AU  - Stanojković, Tatjana
AU  - Damjanović, Ana
AU  - Petrović, Slobodan
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3961
AB  - Pomegranate seeds are an excellent source of compounds with biological activity. In the present study, the pomegranate seed oil (PSO) was tested for antioxidant and cytotoxic potential. PSO was extracted by super-critical fluid extraction with previous treatment of seeds by microwaves and analysed for its fatty acid profile, carotenoid and tocopherol contents. PSO demonstrated to be a good source of polyunsaturated fatty acids (PUFAs) (83.5%), followed by monounsaturated fatty acid (MUFA) and saturated fatty acid (SFA) (9.5% and 7.0%, respectively). Concerning fatty acid profile, punicic (C18:3), oleic (C18:1) and linoleic (C18:2) acids were the predominant ones. Carotenoids and tocopherols were identified and quantified by HPLC. Results showed that the PSO was a good source of gamma-tocopherol as dominant among investigated compounds (128.6 mg/100 g). The extract was screened for its antioxidant activity using alpha-TEAC assay. Cytotoxic effect was determined by MTT test against malignant HeLa, LS174 and A549 cells (IC50 = 49.51-91.54 mu g/mL), and against normal MRC-5 and EA.hy926 cells (IC50  gt  200 mu g/mL). The best effect was exhibited on cervix adenocarcinoma cell line while no cytotoxicity was found for normal cells pointing out PSO safety.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Antioxidant and cytotoxic activity of fatty oil isolated by supercritical fluid extraction from microwave pretreated seeds of wild growing Punica granatum L.
EP  - 232
SP  - 225
VL  - 133
DO  - 10.1016/j.supflu.2017.10.021
ER  - 

@article{
author = "Durdević, Sanja and Šavikin, Katarina and Živković, Jelena Č. and Boehm, Volker and Stanojković, Tatjana and Damjanović, Ana and Petrović, Slobodan",
year = "2018",
abstract = "Pomegranate seeds are an excellent source of compounds with biological activity. In the present study, the pomegranate seed oil (PSO) was tested for antioxidant and cytotoxic potential. PSO was extracted by super-critical fluid extraction with previous treatment of seeds by microwaves and analysed for its fatty acid profile, carotenoid and tocopherol contents. PSO demonstrated to be a good source of polyunsaturated fatty acids (PUFAs) (83.5%), followed by monounsaturated fatty acid (MUFA) and saturated fatty acid (SFA) (9.5% and 7.0%, respectively). Concerning fatty acid profile, punicic (C18:3), oleic (C18:1) and linoleic (C18:2) acids were the predominant ones. Carotenoids and tocopherols were identified and quantified by HPLC. Results showed that the PSO was a good source of gamma-tocopherol as dominant among investigated compounds (128.6 mg/100 g). The extract was screened for its antioxidant activity using alpha-TEAC assay. Cytotoxic effect was determined by MTT test against malignant HeLa, LS174 and A549 cells (IC50 = 49.51-91.54 mu g/mL), and against normal MRC-5 and EA.hy926 cells (IC50  gt  200 mu g/mL). The best effect was exhibited on cervix adenocarcinoma cell line while no cytotoxicity was found for normal cells pointing out PSO safety.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Antioxidant and cytotoxic activity of fatty oil isolated by supercritical fluid extraction from microwave pretreated seeds of wild growing Punica granatum L.",
pages = "232-225",
volume = "133",
doi = "10.1016/j.supflu.2017.10.021"
}

Durdević, S., Šavikin, K., Živković, J. Č., Boehm, V., Stanojković, T., Damjanović, A.,& Petrović, S.. (2018). Antioxidant and cytotoxic activity of fatty oil isolated by supercritical fluid extraction from microwave pretreated seeds of wild growing Punica granatum L.. in Journal of Supercritical Fluids
Elsevier Science Bv, Amsterdam., 133, 225-232.
https://doi.org/10.1016/j.supflu.2017.10.021

Durdević S, Šavikin K, Živković JČ, Boehm V, Stanojković T, Damjanović A, Petrović S. Antioxidant and cytotoxic activity of fatty oil isolated by supercritical fluid extraction from microwave pretreated seeds of wild growing Punica granatum L.. in Journal of Supercritical Fluids. 2018;133:225-232.
doi:10.1016/j.supflu.2017.10.021 .

Durdević, Sanja, Šavikin, Katarina, Živković, Jelena Č., Boehm, Volker, Stanojković, Tatjana, Damjanović, Ana, Petrović, Slobodan, "Antioxidant and cytotoxic activity of fatty oil isolated by supercritical fluid extraction from microwave pretreated seeds of wild growing Punica granatum L." in Journal of Supercritical Fluids, 133 (2018):225-232,
https://doi.org/10.1016/j.supflu.2017.10.021 . .

TY  - JOUR
AU  - Dugandžić, Ana M.
AU  - Tomašević, Anđelka
AU  - Dabić, Dunja M.
AU  - Šekuljica, Nataša
AU  - Radišić, Marina
AU  - Petrović, Slobodan
AU  - Mijin, Dušan
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3892
AB  - Nicosulfuron, a sulfonylurea herbicide, was subjected to different Fenton reactions at pH of a nicosulfuron aqueous solution (pH 5). Usually, the optimal pH for the Fenton reaction is between 3 and 4, but the addition of acids is not environmentally acceptable. This is the reason why the reactions were performed at a higher pH value than usual. So, classical Fenton and Fenton-like reactions were applied as well as phot-Fenton and photo-Fenton-like reactions. In addition, microwave Fenton and Fenton-like reactions were used in nicosulfuron degradation. Influences of Fe2+ and Fe3+ concentrations, as well as hydrogen peroxide concentrations, were studied The Fenton reaction was much faster and more efficient than the Fenton-like reaction, while the photo-Fenton reaction proceeded much faster and more efficiently than the Fenton reaction. The microwave-Fenton and microwave-Fenton-like reactions proceeded with increased efficiency in comparison to the Fenton and Fenton-like reactions. The phytotoxicity and acute toxicity of the reaction products of nicosulfuron oxidation by the photo-Fenton reaction were analyzed The toxicity testing of nicosulfuron treatment by photo-Fenton process showed a decrease in phytotoxicity, while the acute toxicity tests showed that the samples after treatment had lower toxicity.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Degradation of nicosulfuron using fenton and fenton-like reactions
EP  - 208
IS  - 3
SP  - 201
VL  - 24
DO  - 10.2298/CICEQ170617032D
ER  - 

@article{
author = "Dugandžić, Ana M. and Tomašević, Anđelka and Dabić, Dunja M. and Šekuljica, Nataša and Radišić, Marina and Petrović, Slobodan and Mijin, Dušan",
year = "2018",
abstract = "Nicosulfuron, a sulfonylurea herbicide, was subjected to different Fenton reactions at pH of a nicosulfuron aqueous solution (pH 5). Usually, the optimal pH for the Fenton reaction is between 3 and 4, but the addition of acids is not environmentally acceptable. This is the reason why the reactions were performed at a higher pH value than usual. So, classical Fenton and Fenton-like reactions were applied as well as phot-Fenton and photo-Fenton-like reactions. In addition, microwave Fenton and Fenton-like reactions were used in nicosulfuron degradation. Influences of Fe2+ and Fe3+ concentrations, as well as hydrogen peroxide concentrations, were studied The Fenton reaction was much faster and more efficient than the Fenton-like reaction, while the photo-Fenton reaction proceeded much faster and more efficiently than the Fenton reaction. The microwave-Fenton and microwave-Fenton-like reactions proceeded with increased efficiency in comparison to the Fenton and Fenton-like reactions. The phytotoxicity and acute toxicity of the reaction products of nicosulfuron oxidation by the photo-Fenton reaction were analyzed The toxicity testing of nicosulfuron treatment by photo-Fenton process showed a decrease in phytotoxicity, while the acute toxicity tests showed that the samples after treatment had lower toxicity.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Degradation of nicosulfuron using fenton and fenton-like reactions",
pages = "208-201",
number = "3",
volume = "24",
doi = "10.2298/CICEQ170617032D"
}

Dugandžić, A. M., Tomašević, A., Dabić, D. M., Šekuljica, N., Radišić, M., Petrović, S.,& Mijin, D.. (2018). Degradation of nicosulfuron using fenton and fenton-like reactions. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 24(3), 201-208.
https://doi.org/10.2298/CICEQ170617032D

Dugandžić AM, Tomašević A, Dabić DM, Šekuljica N, Radišić M, Petrović S, Mijin D. Degradation of nicosulfuron using fenton and fenton-like reactions. in Chemical Industry & Chemical Engineering Quarterly. 2018;24(3):201-208.
doi:10.2298/CICEQ170617032D .

Dugandžić, Ana M., Tomašević, Anđelka, Dabić, Dunja M., Šekuljica, Nataša, Radišić, Marina, Petrović, Slobodan, Mijin, Dušan, "Degradation of nicosulfuron using fenton and fenton-like reactions" in Chemical Industry & Chemical Engineering Quarterly, 24, no. 3 (2018):201-208,
https://doi.org/10.2298/CICEQ170617032D . .

TY  - JOUR
AU  - Jović, B.
AU  - Petrović, Slobodan
AU  - Kordić, Branko
AU  - Kovacević, M.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3853
AB  - IR spectroscopic investigation of intramolecular interactions of N-tert-butylformamide (NtBF) in presence of selected ethers as the O-electron donors was carried out. Following ethers were selected based on the different size of sidechain: diethyl ether (DEE), diisopropyl ether (DiPE), methyl-tert-buthyl ether (MtBE), dibutyl ether (DBE), tetrahydrofuran (THF) and tetrahydropyran (THP). Frequency shifts of carbonyl stretching vibration v(C=0) of NtBF in ether solvents were also investigated. The spectroscopic characteristics for N-H center dot center dot center dot O hydrogen bonded complexes are given. Also, the equilibrium constants for 1:1 complex formation in carbon tetrachloride, at 298 K were determined using IR measurements. Further, the wavenumbers of carbonyl stretching vibration v(C=0) were correlated with the Catalan and the linear solvation energy relationships (LSER) solvatochromic parameters.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Structure
T1  - FTIR spectroscopic study of possible interactions of N-tert-butylformamide with ethers
EP  - 68
SP  - 62
VL  - 1171
DO  - 10.1016/j.molstruc.2018.05.108
ER  - 

@article{
author = "Jović, B. and Petrović, Slobodan and Kordić, Branko and Kovacević, M.",
year = "2018",
abstract = "IR spectroscopic investigation of intramolecular interactions of N-tert-butylformamide (NtBF) in presence of selected ethers as the O-electron donors was carried out. Following ethers were selected based on the different size of sidechain: diethyl ether (DEE), diisopropyl ether (DiPE), methyl-tert-buthyl ether (MtBE), dibutyl ether (DBE), tetrahydrofuran (THF) and tetrahydropyran (THP). Frequency shifts of carbonyl stretching vibration v(C=0) of NtBF in ether solvents were also investigated. The spectroscopic characteristics for N-H center dot center dot center dot O hydrogen bonded complexes are given. Also, the equilibrium constants for 1:1 complex formation in carbon tetrachloride, at 298 K were determined using IR measurements. Further, the wavenumbers of carbonyl stretching vibration v(C=0) were correlated with the Catalan and the linear solvation energy relationships (LSER) solvatochromic parameters.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Structure",
title = "FTIR spectroscopic study of possible interactions of N-tert-butylformamide with ethers",
pages = "68-62",
volume = "1171",
doi = "10.1016/j.molstruc.2018.05.108"
}

Jović, B., Petrović, S., Kordić, B.,& Kovacević, M.. (2018). FTIR spectroscopic study of possible interactions of N-tert-butylformamide with ethers. in Journal of Molecular Structure
Elsevier Science Bv, Amsterdam., 1171, 62-68.
https://doi.org/10.1016/j.molstruc.2018.05.108

Jović B, Petrović S, Kordić B, Kovacević M. FTIR spectroscopic study of possible interactions of N-tert-butylformamide with ethers. in Journal of Molecular Structure. 2018;1171:62-68.
doi:10.1016/j.molstruc.2018.05.108 .

Jović, B., Petrović, Slobodan, Kordić, Branko, Kovacević, M., "FTIR spectroscopic study of possible interactions of N-tert-butylformamide with ethers" in Journal of Molecular Structure, 1171 (2018):62-68,
https://doi.org/10.1016/j.molstruc.2018.05.108 . .

TY  - JOUR
AU  - Durdević, Sanja
AU  - Milovanović, Stoja
AU  - Šavikin, Katarina
AU  - Ristić, Mihailo S.
AU  - Menković, Nebojša
AU  - Pljevljakusić, Dejan
AU  - Petrović, Slobodan
AU  - Bogdanović, Aleksandra
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3715
AB  - Microwave radiation was suggested as a pretreatment technique to increase the yield of pomegranate seed oil. Seeds were pretreated at 100, 250 and 600 W during 2 and 6 min and then extracted by supercritical carbon dioxide (scCO(2)) in high pressure unit as well as by n-hexane in Soxhlet apparatus. Even at the lowest microwave pretreatment parameters applied (100 W for 2 min) increased the yield of seed oil obtained by both extraction techniques compared with untreated seeds (from 27.7 to 34.0% and from 21.6 to 25.5% for Soxhlet and scCO(2) extractions, respectively). Maximal oil yield in Soxhlet extraction (36.3%) was obtained with microwave radiation of 600 W for 6 min while for scCO(2) extraction maximal oil yield (27.2%) was with 250 W for 6 min microwave radiation pretreatment. The qualitative and quantitative composition of fatty acids of the obtained oils was determined by gas chromatography/flame ionization detection and gas chromatography/mass spectrometry. Punicic acid was the most abundant fatty acid in pomegranate seed oil ( gt  60%). Microwave pretreatment of seeds showed negligible influence on profile and the amount of fatty acids in obtained extracts, compared with its significant influence on extraction yield. Our results recognize microwave pretreatment as a promising technique for intensification of oil extraction from pomegranate seeds.
PB  - Elsevier, Amsterdam
T2  - Industrial Crops and Products
T1  - Improvement of supercritical CO2 and n-hexane extraction of wild growing pomegranate seed oil by microwave pretreatment
EP  - 27
SP  - 21
VL  - 104
DO  - 10.1016/j.indcrop.2017.04.024
ER  - 

@article{
author = "Durdević, Sanja and Milovanović, Stoja and Šavikin, Katarina and Ristić, Mihailo S. and Menković, Nebojša and Pljevljakusić, Dejan and Petrović, Slobodan and Bogdanović, Aleksandra",
year = "2017",
abstract = "Microwave radiation was suggested as a pretreatment technique to increase the yield of pomegranate seed oil. Seeds were pretreated at 100, 250 and 600 W during 2 and 6 min and then extracted by supercritical carbon dioxide (scCO(2)) in high pressure unit as well as by n-hexane in Soxhlet apparatus. Even at the lowest microwave pretreatment parameters applied (100 W for 2 min) increased the yield of seed oil obtained by both extraction techniques compared with untreated seeds (from 27.7 to 34.0% and from 21.6 to 25.5% for Soxhlet and scCO(2) extractions, respectively). Maximal oil yield in Soxhlet extraction (36.3%) was obtained with microwave radiation of 600 W for 6 min while for scCO(2) extraction maximal oil yield (27.2%) was with 250 W for 6 min microwave radiation pretreatment. The qualitative and quantitative composition of fatty acids of the obtained oils was determined by gas chromatography/flame ionization detection and gas chromatography/mass spectrometry. Punicic acid was the most abundant fatty acid in pomegranate seed oil ( gt  60%). Microwave pretreatment of seeds showed negligible influence on profile and the amount of fatty acids in obtained extracts, compared with its significant influence on extraction yield. Our results recognize microwave pretreatment as a promising technique for intensification of oil extraction from pomegranate seeds.",
publisher = "Elsevier, Amsterdam",
journal = "Industrial Crops and Products",
title = "Improvement of supercritical CO2 and n-hexane extraction of wild growing pomegranate seed oil by microwave pretreatment",
pages = "27-21",
volume = "104",
doi = "10.1016/j.indcrop.2017.04.024"
}

Durdević, S., Milovanović, S., Šavikin, K., Ristić, M. S., Menković, N., Pljevljakusić, D., Petrović, S.,& Bogdanović, A.. (2017). Improvement of supercritical CO2 and n-hexane extraction of wild growing pomegranate seed oil by microwave pretreatment. in Industrial Crops and Products
Elsevier, Amsterdam., 104, 21-27.
https://doi.org/10.1016/j.indcrop.2017.04.024

Durdević S, Milovanović S, Šavikin K, Ristić MS, Menković N, Pljevljakusić D, Petrović S, Bogdanović A. Improvement of supercritical CO2 and n-hexane extraction of wild growing pomegranate seed oil by microwave pretreatment. in Industrial Crops and Products. 2017;104:21-27.
doi:10.1016/j.indcrop.2017.04.024 .

Durdević, Sanja, Milovanović, Stoja, Šavikin, Katarina, Ristić, Mihailo S., Menković, Nebojša, Pljevljakusić, Dejan, Petrović, Slobodan, Bogdanović, Aleksandra, "Improvement of supercritical CO2 and n-hexane extraction of wild growing pomegranate seed oil by microwave pretreatment" in Industrial Crops and Products, 104 (2017):21-27,
https://doi.org/10.1016/j.indcrop.2017.04.024 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša
AU  - Petrović, Slobodan
AU  - Vuković, Dragan
AU  - Prlainović, Nevena
AU  - Mijin, Dušan
AU  - Avramov-Ivić, Milka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3570
AB  - The method to develop a stable glucose biosensor with successive attachment of cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is presented. The cyclic voltammetry (CV) suggests the diffusion control of the glucose oxidation. The obtained biosensor shows a fast electron transfer of k(0) = 20.4 s(-1), high affinity for glucose with the apparent MichaelisMenten constant K-M(app) = 1.15 mM, a low detection limit of 0.94 mM in a linear range 1.5-7 mM. This biosensor exhibits good stability and reproducibility. Good biocompatibility of modified electrode surface, which enhances the covalent bonded enzyme and consequently glucose oxidation, resulted in biosensor with excellent performances. Biosensor was tested in samples containing human serum.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode
EP  - 5817
IS  - 7
SP  - 5806
VL  - 12
DO  - 10.20964/2017.07.65
ER  - 

@article{
author = "Lović, Jelena and Stevanović, Sanja and Nikolić, Nebojša and Petrović, Slobodan and Vuković, Dragan and Prlainović, Nevena and Mijin, Dušan and Avramov-Ivić, Milka",
year = "2017",
abstract = "The method to develop a stable glucose biosensor with successive attachment of cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is presented. The cyclic voltammetry (CV) suggests the diffusion control of the glucose oxidation. The obtained biosensor shows a fast electron transfer of k(0) = 20.4 s(-1), high affinity for glucose with the apparent MichaelisMenten constant K-M(app) = 1.15 mM, a low detection limit of 0.94 mM in a linear range 1.5-7 mM. This biosensor exhibits good stability and reproducibility. Good biocompatibility of modified electrode surface, which enhances the covalent bonded enzyme and consequently glucose oxidation, resulted in biosensor with excellent performances. Biosensor was tested in samples containing human serum.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode",
pages = "5817-5806",
number = "7",
volume = "12",
doi = "10.20964/2017.07.65"
}

Lović, J., Stevanović, S., Nikolić, N., Petrović, S., Vuković, D., Prlainović, N., Mijin, D.,& Avramov-Ivić, M.. (2017). Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 12(7), 5806-5817.
https://doi.org/10.20964/2017.07.65

Lović J, Stevanović S, Nikolić N, Petrović S, Vuković D, Prlainović N, Mijin D, Avramov-Ivić M. Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode. in International Journal of Electrochemical Science. 2017;12(7):5806-5817.
doi:10.20964/2017.07.65 .

Lović, Jelena, Stevanović, Sanja, Nikolić, Nebojša, Petrović, Slobodan, Vuković, Dragan, Prlainović, Nevena, Mijin, Dušan, Avramov-Ivić, Milka, "Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode" in International Journal of Electrochemical Science, 12, no. 7 (2017):5806-5817,
https://doi.org/10.20964/2017.07.65 . .

TY  - JOUR
AU  - Dugandžić, Ana M.
AU  - Tomašević, Anđelka
AU  - Radišić, Marina
AU  - Šekuljica, Nataša
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3701
AB  - In the present study, the photocatalytic degradation of nicosulfuron, using TiO2 as a catalyst under UV light (315-400 nm), was studied. The optimization of the nicosulfuron photodegradation was performed. It was found that the optimal concentration of the catalyst was 1 g L-1 at concentration of nicosulfuron solution of 20 mg L-1 while the highest reaction rate was obtained using 2 g L-1. The degradation rate was the highest at pH .= 5.0. Effects of anions (Cl-, SO42- NO3- and F-) and cations (Na+, Ca2+, Al3+) were investigated. In addition, the influence of isopropanol, acetone, and hydrogen peroxide was studied. It was shown that the photocatalytic degradation is mainly due to the reaction of nicosulfuron with (OH)-O-center dot in solution. Also, liquid chromatography coupled with mass spectrometry (HPLC-MS) was used to identify intermediates during the photocatalytic degradation of nicosulfuron. the mineralization was monitored with ion chromatography (IC) and total organic carbon (TOC) analysis. Although 100% HPLC removal of nicosulfuron was achieved, only 69% TOC removal after 90 min was recorded. The results of ion chromatography showed that the mineralization resulted in ammonium and nitrate ions during the process. The phytotoxicity experiments using mung bean seeds showed a reduction in phytotoxicity.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Photochemistry and Photobiology A-Chemistry
T1  - Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron
EP  - 155
SP  - 146
VL  - 336
DO  - 10.1016/j.jphotochem.2016.12.031
ER  - 

@article{
author = "Dugandžić, Ana M. and Tomašević, Anđelka and Radišić, Marina and Šekuljica, Nataša and Mijin, Dušan and Petrović, Slobodan",
year = "2017",
abstract = "In the present study, the photocatalytic degradation of nicosulfuron, using TiO2 as a catalyst under UV light (315-400 nm), was studied. The optimization of the nicosulfuron photodegradation was performed. It was found that the optimal concentration of the catalyst was 1 g L-1 at concentration of nicosulfuron solution of 20 mg L-1 while the highest reaction rate was obtained using 2 g L-1. The degradation rate was the highest at pH .= 5.0. Effects of anions (Cl-, SO42- NO3- and F-) and cations (Na+, Ca2+, Al3+) were investigated. In addition, the influence of isopropanol, acetone, and hydrogen peroxide was studied. It was shown that the photocatalytic degradation is mainly due to the reaction of nicosulfuron with (OH)-O-center dot in solution. Also, liquid chromatography coupled with mass spectrometry (HPLC-MS) was used to identify intermediates during the photocatalytic degradation of nicosulfuron. the mineralization was monitored with ion chromatography (IC) and total organic carbon (TOC) analysis. Although 100% HPLC removal of nicosulfuron was achieved, only 69% TOC removal after 90 min was recorded. The results of ion chromatography showed that the mineralization resulted in ammonium and nitrate ions during the process. The phytotoxicity experiments using mung bean seeds showed a reduction in phytotoxicity.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Photochemistry and Photobiology A-Chemistry",
title = "Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron",
pages = "155-146",
volume = "336",
doi = "10.1016/j.jphotochem.2016.12.031"
}

Dugandžić, A. M., Tomašević, A., Radišić, M., Šekuljica, N., Mijin, D.,& Petrović, S.. (2017). Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron. in Journal of Photochemistry and Photobiology A-Chemistry
Elsevier Science Sa, Lausanne., 336, 146-155.
https://doi.org/10.1016/j.jphotochem.2016.12.031

Dugandžić AM, Tomašević A, Radišić M, Šekuljica N, Mijin D, Petrović S. Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron. in Journal of Photochemistry and Photobiology A-Chemistry. 2017;336:146-155.
doi:10.1016/j.jphotochem.2016.12.031 .

Dugandžić, Ana M., Tomašević, Anđelka, Radišić, Marina, Šekuljica, Nataša, Mijin, Dušan, Petrović, Slobodan, "Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron" in Journal of Photochemistry and Photobiology A-Chemistry, 336 (2017):146-155,
https://doi.org/10.1016/j.jphotochem.2016.12.031 . .

TY  - JOUR
AU  - Radosavljević, Kristina D.
AU  - Golubović, Aleksandar
AU  - Radisić, M. M.
AU  - Mladenović, Aleksandar R.
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3582
AB  - Nanocrystalline TiO2, synthesized by sol-gel route and characterized by XRPD, BET and SEM measurements, was applied in the photocatalytic degradation of amoxicillin, using an Osram Ultra-Vitalux (R) lamp as the light source. Amoxicillin is a semi-synthetic penicillin type antibiotic active against a wide range of gram-positive and a limited range of gram-negative organisms. The continuous release of antibiotics and their persistence in the environment may result in serious irreversible effects on aquatic and terrestrial organisms. Heterogeneous catalysis, which uses catalysts like TiO2, is a promising route for the degradation of organic pollutants including antibiotics. The effects of initial concentration of catalyst, initial salt concentration (NaCl and Na2SO4), ethanol and pH on the photocatalytic degradation of amoxicillin were studied. The mineralization of amoxicillin was analyzed by ion chromatography as well as by total organic ana-lysis. The catalytic properties of nanocrystalline TiO2 were compared to Evonik P25 catalyst.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Amoxicillin photodegradation by nanocrystalline tio2
EP  - 195
IS  - 2
SP  - 187
VL  - 23
DO  - 10.2298/CICEQ160122030R
ER  - 

@article{
author = "Radosavljević, Kristina D. and Golubović, Aleksandar and Radisić, M. M. and Mladenović, Aleksandar R. and Mijin, Dušan and Petrović, Slobodan",
year = "2017",
abstract = "Nanocrystalline TiO2, synthesized by sol-gel route and characterized by XRPD, BET and SEM measurements, was applied in the photocatalytic degradation of amoxicillin, using an Osram Ultra-Vitalux (R) lamp as the light source. Amoxicillin is a semi-synthetic penicillin type antibiotic active against a wide range of gram-positive and a limited range of gram-negative organisms. The continuous release of antibiotics and their persistence in the environment may result in serious irreversible effects on aquatic and terrestrial organisms. Heterogeneous catalysis, which uses catalysts like TiO2, is a promising route for the degradation of organic pollutants including antibiotics. The effects of initial concentration of catalyst, initial salt concentration (NaCl and Na2SO4), ethanol and pH on the photocatalytic degradation of amoxicillin were studied. The mineralization of amoxicillin was analyzed by ion chromatography as well as by total organic ana-lysis. The catalytic properties of nanocrystalline TiO2 were compared to Evonik P25 catalyst.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Amoxicillin photodegradation by nanocrystalline tio2",
pages = "195-187",
number = "2",
volume = "23",
doi = "10.2298/CICEQ160122030R"
}

Radosavljević, K. D., Golubović, A., Radisić, M. M., Mladenović, A. R., Mijin, D.,& Petrović, S.. (2017). Amoxicillin photodegradation by nanocrystalline tio2. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 23(2), 187-195.
https://doi.org/10.2298/CICEQ160122030R

Radosavljević KD, Golubović A, Radisić MM, Mladenović AR, Mijin D, Petrović S. Amoxicillin photodegradation by nanocrystalline tio2. in Chemical Industry & Chemical Engineering Quarterly. 2017;23(2):187-195.
doi:10.2298/CICEQ160122030R .

Radosavljević, Kristina D., Golubović, Aleksandar, Radisić, M. M., Mladenović, Aleksandar R., Mijin, Dušan, Petrović, Slobodan, "Amoxicillin photodegradation by nanocrystalline tio2" in Chemical Industry & Chemical Engineering Quarterly, 23, no. 2 (2017):187-195,
https://doi.org/10.2298/CICEQ160122030R . .

TY  - JOUR
AU  - Radosavljević, Kristina D.
AU  - Lović, Jelena
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
AU  - Jadranin, Milka
AU  - Mladenović, Aleksandar R.
AU  - Avramov-Ivić, Milka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3685
AB  - The electrodegradation of azithromycin was studied by its indirect oxidation using dimensionally stable Ti/RuO2 anode as catalyst in the electrolyte containing methanol, 0.05 M NaHCO3, sodium chloride and deionized water. The optimal conditions for galvanostatic electrodegradation for the azithromycin concentration of 0.472 mg cm(-3) were found to be NaCl concentration of 7 mg cm(-3) and the applied current of 300 mA. The differential pulse voltammetry using glassy carbon electrode was performed for the first time in the above-mentioned content of electrolyte for the nine concentration of azithromycin (0.075-0.675 mg cm(-3)) giving the limits of azithromycin detection and of quantification as: LOD 0.044 mg cm(-3) and LOQ 0.145 mg cm(-3). The calibration curve was constructed enabling the electrolyte analysis during its electrodegradation process. The electrolyte was analyzed by high-performance liquid chromatography and electrospray ionization time-of-flight mass spectrometry. The electrooxidation products were identified and after 180 min there was no azithromycin in the electrolyte while TOC analysis showed that 79% of azithromycin was mineralized. The proposed degradation scheme is presented.
PB  - Springer International Publishing Ag, Cham
T2  - Chemical Papers
T1  - Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis
EP  - 1224
IS  - 7
SP  - 1217
VL  - 71
DO  - 10.1007/s11696-016-0115-2
ER  - 

@article{
author = "Radosavljević, Kristina D. and Lović, Jelena and Mijin, Dušan and Petrović, Slobodan and Jadranin, Milka and Mladenović, Aleksandar R. and Avramov-Ivić, Milka",
year = "2017",
abstract = "The electrodegradation of azithromycin was studied by its indirect oxidation using dimensionally stable Ti/RuO2 anode as catalyst in the electrolyte containing methanol, 0.05 M NaHCO3, sodium chloride and deionized water. The optimal conditions for galvanostatic electrodegradation for the azithromycin concentration of 0.472 mg cm(-3) were found to be NaCl concentration of 7 mg cm(-3) and the applied current of 300 mA. The differential pulse voltammetry using glassy carbon electrode was performed for the first time in the above-mentioned content of electrolyte for the nine concentration of azithromycin (0.075-0.675 mg cm(-3)) giving the limits of azithromycin detection and of quantification as: LOD 0.044 mg cm(-3) and LOQ 0.145 mg cm(-3). The calibration curve was constructed enabling the electrolyte analysis during its electrodegradation process. The electrolyte was analyzed by high-performance liquid chromatography and electrospray ionization time-of-flight mass spectrometry. The electrooxidation products were identified and after 180 min there was no azithromycin in the electrolyte while TOC analysis showed that 79% of azithromycin was mineralized. The proposed degradation scheme is presented.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Chemical Papers",
title = "Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis",
pages = "1224-1217",
number = "7",
volume = "71",
doi = "10.1007/s11696-016-0115-2"
}

Radosavljević, K. D., Lović, J., Mijin, D., Petrović, S., Jadranin, M., Mladenović, A. R.,& Avramov-Ivić, M.. (2017). Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis. in Chemical Papers
Springer International Publishing Ag, Cham., 71(7), 1217-1224.
https://doi.org/10.1007/s11696-016-0115-2

Radosavljević KD, Lović J, Mijin D, Petrović S, Jadranin M, Mladenović AR, Avramov-Ivić M. Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis. in Chemical Papers. 2017;71(7):1217-1224.
doi:10.1007/s11696-016-0115-2 .

Radosavljević, Kristina D., Lović, Jelena, Mijin, Dušan, Petrović, Slobodan, Jadranin, Milka, Mladenović, Aleksandar R., Avramov-Ivić, Milka, "Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis" in Chemical Papers, 71, no. 7 (2017):1217-1224,
https://doi.org/10.1007/s11696-016-0115-2 . .