TY  - JOUR
AU  - Jovanović, Snežana
AU  - Bogojeski, Jovana V.
AU  - Nikolić, Miloš V.
AU  - Mijajlović, Marina Ž.
AU  - Tomović, Dušan Lj.
AU  - Bukonjić, Andriana M.
AU  - Knežević Rangelov, Sanja M.
AU  - Mijailović, Nataša R.
AU  - Ratković, Zoran R.
AU  - Jevtić, Verica V.
AU  - Petrović, Biljana V.
AU  - Trifunović, Srećko R.
AU  - Novaković, Slađana B.
AU  - Bogdanović, Goran A.
AU  - Radić, Gordana P.
PY  - 2019
UR  - https://www.tandfonline.com/doi/full/10.1080/00958972.2019.1610561
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8196
AB  - Interactions of copper(II) complexes which contain S-alkyl derivatives of thiosalicylic acid (alkyl = methyl, ethyl, propyl and butyl; aryl = benzyl), marked as 1–5, with guanosine-5′-monophosphate (5′-GMP) and calf thymus DNA (CT-DNA) were studied. Kinetics of substitution reactions of 1–5 with 5′-GMP and CT-DNA were investigated under pseudo-first-order conditions at 310 K and pH = 7.2 in 25 mM Hepes buffer using stopped-flow method. All complexes have high affinity toward studied bio-molecules. Additionally, interactions with CT-DNA were followed by absorption spectroscopy and fluorescence quenching measurements. The results indicate that complexes bind to DNA exhibiting high binding constants (Kb = 104 M−1). During the examination of competitive reactions with ethidium bromide (EB), results showed that complexes can replace EB-bound DNA. In addition, a new crystal structure of the binuclear Cu(II) complex with S-substituted thiosalicylate derivative has been reported. In the present series of Cu(II) complexes the crystal structure is the first example of a complex comprising an S-aryl derivative of thiosalicylate ligand. Through comparative study of structural properties of six molecules from four crystal structures we examined the structural variations, potentially important for biological activity of these complexes. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
T2  - Journal of Coordination Chemistry
T1  - Interactions of binuclear copper(II) complexes with S-substituted thiosalicylate derivatives with some relevant biomolecules
VL  - 72
IS  - 10
SP  - 1603
EP  - 1620
DO  - 10.1080/00958972.2019.1610561
ER  - 

@article{
author = "Jovanović, Snežana and Bogojeski, Jovana V. and Nikolić, Miloš V. and Mijajlović, Marina Ž. and Tomović, Dušan Lj. and Bukonjić, Andriana M. and Knežević Rangelov, Sanja M. and Mijailović, Nataša R. and Ratković, Zoran R. and Jevtić, Verica V. and Petrović, Biljana V. and Trifunović, Srećko R. and Novaković, Slađana B. and Bogdanović, Goran A. and Radić, Gordana P.",
year = "2019",
abstract = "Interactions of copper(II) complexes which contain S-alkyl derivatives of thiosalicylic acid (alkyl = methyl, ethyl, propyl and butyl; aryl = benzyl), marked as 1–5, with guanosine-5′-monophosphate (5′-GMP) and calf thymus DNA (CT-DNA) were studied. Kinetics of substitution reactions of 1–5 with 5′-GMP and CT-DNA were investigated under pseudo-first-order conditions at 310 K and pH = 7.2 in 25 mM Hepes buffer using stopped-flow method. All complexes have high affinity toward studied bio-molecules. Additionally, interactions with CT-DNA were followed by absorption spectroscopy and fluorescence quenching measurements. The results indicate that complexes bind to DNA exhibiting high binding constants (Kb = 104 M−1). During the examination of competitive reactions with ethidium bromide (EB), results showed that complexes can replace EB-bound DNA. In addition, a new crystal structure of the binuclear Cu(II) complex with S-substituted thiosalicylate derivative has been reported. In the present series of Cu(II) complexes the crystal structure is the first example of a complex comprising an S-aryl derivative of thiosalicylate ligand. Through comparative study of structural properties of six molecules from four crystal structures we examined the structural variations, potentially important for biological activity of these complexes. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.",
journal = "Journal of Coordination Chemistry",
title = "Interactions of binuclear copper(II) complexes with S-substituted thiosalicylate derivatives with some relevant biomolecules",
volume = "72",
number = "10",
pages = "1603-1620",
doi = "10.1080/00958972.2019.1610561"
}

Jovanović, S., Bogojeski, J. V., Nikolić, M. V., Mijajlović, M. Ž., Tomović, D. Lj., Bukonjić, A. M., Knežević Rangelov, S. M., Mijailović, N. R., Ratković, Z. R., Jevtić, V. V., Petrović, B. V., Trifunović, S. R., Novaković, S. B., Bogdanović, G. A.,& Radić, G. P.. (2019). Interactions of binuclear copper(II) complexes with S-substituted thiosalicylate derivatives with some relevant biomolecules. in Journal of Coordination Chemistry, 72(10), 1603-1620.
https://doi.org/10.1080/00958972.2019.1610561

Jovanović S, Bogojeski JV, Nikolić MV, Mijajlović MŽ, Tomović DL, Bukonjić AM, Knežević Rangelov SM, Mijailović NR, Ratković ZR, Jevtić VV, Petrović BV, Trifunović SR, Novaković SB, Bogdanović GA, Radić GP. Interactions of binuclear copper(II) complexes with S-substituted thiosalicylate derivatives with some relevant biomolecules. in Journal of Coordination Chemistry. 2019;72(10):1603-1620.
doi:10.1080/00958972.2019.1610561 .

Jovanović, Snežana, Bogojeski, Jovana V., Nikolić, Miloš V., Mijajlović, Marina Ž., Tomović, Dušan Lj., Bukonjić, Andriana M., Knežević Rangelov, Sanja M., Mijailović, Nataša R., Ratković, Zoran R., Jevtić, Verica V., Petrović, Biljana V., Trifunović, Srećko R., Novaković, Slađana B., Bogdanović, Goran A., Radić, Gordana P., "Interactions of binuclear copper(II) complexes with S-substituted thiosalicylate derivatives with some relevant biomolecules" in Journal of Coordination Chemistry, 72, no. 10 (2019):1603-1620,
https://doi.org/10.1080/00958972.2019.1610561 . .

TY  - JOUR
AU  - Tomović, Dušan Lj.
AU  - Bukonjić, Andriana M.
AU  - Jevtić, Verica V.
AU  - Ratković, Zoran R.
AU  - Bogojeski, Jovana V.
AU  - Đeković, Ana
AU  - Radojevic, Ivana D.
AU  - Čomić, Ljiljana R.
AU  - Novaković, Slađana B.
AU  - Bogdanović, Goran A.
AU  - Trifunović, Srećko R.
AU  - Radić, Gordana P.
AU  - Cupara, Snežana
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1954
AB  - The biological activities of two binuclear copper(II) complexes containing S-alkenyl derivatives of thiosalicylic acid are reported [alkenyl = propenyl (L1), isobutenyl (L2)]. The structure of the complex with the S-isobutenyl derivative (C2) was confirmed by single-crystal X-ray structure analysis, which revealed that the structure consists of centrosymmetric, dinuclear complex molecules [Cu-2(S-i-butenyl-thiosal)(4)(DMSO)(2)] containing two Cu(II) centers bridged by four S-isobutyl-thiosalicylate ligands in a paddle-wheel type structure. The Cu(II) atom is situated in a distorted square-pyramidal environment formed by carboxylate oxygen atoms in the basal plane and a DMSO ligand in the axial position. The reactivities of the complexes toward guanosine-5-monophosphate (5-GMP) were investigated. Complex C2 ([Cu-2(S-i-butenyl-thiosal)(4)(H2O)(2)]) reacted more rapidly with 5-GMP than complex C1. The interactions of complexes C1 and C2 with calf thymus DNA (CT-DNA) were examined by absorption (UV-Vis) and emission spectral studies (ethidium bromide displacement studies), revealing good DNA interaction abilities. The antimicrobial activities of the free ligands and their complexes were tested by microdilution method, and both minimal inhibitory and microbicidal concentrations were determined. All the tested substances demonstrated selective and moderate antibacterial activity on gram-positive bacteria, but low antibacterial activity on gram-negative bacteria. Also, the tested substances demonstrated low antifungal activity.
T2  - Transition Metal Chemistry
T1  - DNA binding, antibacterial and antifungal activities of copper(II) complexes with some S-alkenyl derivatives of thiosalicylic acid
VL  - 43
IS  - 2
SP  - 137
EP  - 148
DO  - 10.1007/s11243-018-0201-0
ER  - 

@article{
author = "Tomović, Dušan Lj. and Bukonjić, Andriana M. and Jevtić, Verica V. and Ratković, Zoran R. and Bogojeski, Jovana V. and Đeković, Ana and Radojevic, Ivana D. and Čomić, Ljiljana R. and Novaković, Slađana B. and Bogdanović, Goran A. and Trifunović, Srećko R. and Radić, Gordana P. and Cupara, Snežana",
year = "2018",
abstract = "The biological activities of two binuclear copper(II) complexes containing S-alkenyl derivatives of thiosalicylic acid are reported [alkenyl = propenyl (L1), isobutenyl (L2)]. The structure of the complex with the S-isobutenyl derivative (C2) was confirmed by single-crystal X-ray structure analysis, which revealed that the structure consists of centrosymmetric, dinuclear complex molecules [Cu-2(S-i-butenyl-thiosal)(4)(DMSO)(2)] containing two Cu(II) centers bridged by four S-isobutyl-thiosalicylate ligands in a paddle-wheel type structure. The Cu(II) atom is situated in a distorted square-pyramidal environment formed by carboxylate oxygen atoms in the basal plane and a DMSO ligand in the axial position. The reactivities of the complexes toward guanosine-5-monophosphate (5-GMP) were investigated. Complex C2 ([Cu-2(S-i-butenyl-thiosal)(4)(H2O)(2)]) reacted more rapidly with 5-GMP than complex C1. The interactions of complexes C1 and C2 with calf thymus DNA (CT-DNA) were examined by absorption (UV-Vis) and emission spectral studies (ethidium bromide displacement studies), revealing good DNA interaction abilities. The antimicrobial activities of the free ligands and their complexes were tested by microdilution method, and both minimal inhibitory and microbicidal concentrations were determined. All the tested substances demonstrated selective and moderate antibacterial activity on gram-positive bacteria, but low antibacterial activity on gram-negative bacteria. Also, the tested substances demonstrated low antifungal activity.",
journal = "Transition Metal Chemistry",
title = "DNA binding, antibacterial and antifungal activities of copper(II) complexes with some S-alkenyl derivatives of thiosalicylic acid",
volume = "43",
number = "2",
pages = "137-148",
doi = "10.1007/s11243-018-0201-0"
}

Tomović, D. Lj., Bukonjić, A. M., Jevtić, V. V., Ratković, Z. R., Bogojeski, J. V., Đeković, A., Radojevic, I. D., Čomić, L. R., Novaković, S. B., Bogdanović, G. A., Trifunović, S. R., Radić, G. P.,& Cupara, S.. (2018). DNA binding, antibacterial and antifungal activities of copper(II) complexes with some S-alkenyl derivatives of thiosalicylic acid. in Transition Metal Chemistry, 43(2), 137-148.
https://doi.org/10.1007/s11243-018-0201-0

Tomović DL, Bukonjić AM, Jevtić VV, Ratković ZR, Bogojeski JV, Đeković A, Radojevic ID, Čomić LR, Novaković SB, Bogdanović GA, Trifunović SR, Radić GP, Cupara S. DNA binding, antibacterial and antifungal activities of copper(II) complexes with some S-alkenyl derivatives of thiosalicylic acid. in Transition Metal Chemistry. 2018;43(2):137-148.
doi:10.1007/s11243-018-0201-0 .

Tomović, Dušan Lj., Bukonjić, Andriana M., Jevtić, Verica V., Ratković, Zoran R., Bogojeski, Jovana V., Đeković, Ana, Radojevic, Ivana D., Čomić, Ljiljana R., Novaković, Slađana B., Bogdanović, Goran A., Trifunović, Srećko R., Radić, Gordana P., Cupara, Snežana, "DNA binding, antibacterial and antifungal activities of copper(II) complexes with some S-alkenyl derivatives of thiosalicylic acid" in Transition Metal Chemistry, 43, no. 2 (2018):137-148,
https://doi.org/10.1007/s11243-018-0201-0 . .

TY  - JOUR
AU  - Rakić-Kostić, Tijana M.
AU  - Bogojeski, Jovana V.
AU  - Popović, Iva A.
AU  - Nešić, Maja D.
AU  - Rajčić, Boris
AU  - Nišavić, Marija
AU  - Petković, Marijana
AU  - Veličković, Suzana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1362
AB  - This paper presents optimization of matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometer (MS) instrumental parameters for the analysis of chloro(2,2 , 2 -terpyridine) palladium(II) chloride dihydrate complex applying design of experiments methodology (DoE). This complex is of interest for potential use in the cancer therapy. DoE methodology was proved to succeed in optimization of many complex analytical problems. However, it has been poorly used for MALDI-TOF-MS optimization up to now. The theoretical mathematical relationships which explain the influence of important experimental factors (laser energy, grid voltage and number of laser shots) on the selected responses (signal to noise - S/N ratio and the resolution - R of the leading peak) is established. The optimal instrumental settings providing maximal S/N and R are identified and experimentally verified.
T2  - Hemijska industrija
T1  - Experimental design for optimizing MALDI-TOF-MS analysis of palladium complexes
VL  - 71
IS  - 4
SP  - 281
EP  - 288
DO  - 10.2298/HEMIND160614038R
ER  - 

@article{
author = "Rakić-Kostić, Tijana M. and Bogojeski, Jovana V. and Popović, Iva A. and Nešić, Maja D. and Rajčić, Boris and Nišavić, Marija and Petković, Marijana and Veličković, Suzana",
year = "2017",
abstract = "This paper presents optimization of matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometer (MS) instrumental parameters for the analysis of chloro(2,2 , 2 -terpyridine) palladium(II) chloride dihydrate complex applying design of experiments methodology (DoE). This complex is of interest for potential use in the cancer therapy. DoE methodology was proved to succeed in optimization of many complex analytical problems. However, it has been poorly used for MALDI-TOF-MS optimization up to now. The theoretical mathematical relationships which explain the influence of important experimental factors (laser energy, grid voltage and number of laser shots) on the selected responses (signal to noise - S/N ratio and the resolution - R of the leading peak) is established. The optimal instrumental settings providing maximal S/N and R are identified and experimentally verified.",
journal = "Hemijska industrija",
title = "Experimental design for optimizing MALDI-TOF-MS analysis of palladium complexes",
volume = "71",
number = "4",
pages = "281-288",
doi = "10.2298/HEMIND160614038R"
}

Rakić-Kostić, T. M., Bogojeski, J. V., Popović, I. A., Nešić, M. D., Rajčić, B., Nišavić, M., Petković, M.,& Veličković, S.. (2017). Experimental design for optimizing MALDI-TOF-MS analysis of palladium complexes. in Hemijska industrija, 71(4), 281-288.
https://doi.org/10.2298/HEMIND160614038R

Rakić-Kostić TM, Bogojeski JV, Popović IA, Nešić MD, Rajčić B, Nišavić M, Petković M, Veličković S. Experimental design for optimizing MALDI-TOF-MS analysis of palladium complexes. in Hemijska industrija. 2017;71(4):281-288.
doi:10.2298/HEMIND160614038R .

Rakić-Kostić, Tijana M., Bogojeski, Jovana V., Popović, Iva A., Nešić, Maja D., Rajčić, Boris, Nišavić, Marija, Petković, Marijana, Veličković, Suzana, "Experimental design for optimizing MALDI-TOF-MS analysis of palladium complexes" in Hemijska industrija, 71, no. 4 (2017):281-288,
https://doi.org/10.2298/HEMIND160614038R . .

TY  - JOUR
AU  - Jovanović, Snežana
AU  - Bogojeski, Jovana V.
AU  - Petković, Marijana
AU  - Bugarčić, Živadin D.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/740
AB  - Substitution reactions of the dinuclear Pt(II) complexes, [{Pt(en) Cl}(2)(mu-pz)](2+) (1), [{Pt(dach)Cl}(2) (mu-pz)](2)+ (2) and [{Pt(dach)Cl}(2)(mu-4,4-bipy)](2+) (3), and corresponding aqua analogs with selected biologically important ligands, viz. 1,2,4-triazole, L-histidine (L-His) and guanosine-5-monophosphate (5-GMP) were studied under pseudo-first-order conditions as a function of concentration and temperature using UV-vis spectrophotometry. The reactions of the chloride complexes were followed in aqueous 25 mmol L-1 Hepes buffer in the presence of 40 mmol L-1 NaCl at pH 7.2, whereas the reactions of the aqua complexes were studied at pH 2.5. Two consecutive reaction steps, which both depend on the nucleophile concentration, were observed in all cases. The second-order rate constants for both reaction steps indicate a decrease in the order 1 GT 2 GT 3 for all complexes. Also, the pKa values of all three aqua complexes were determined. The order of the reactivity of the studied ligands is 1,2,4-triazole GT L-His GT 5-GMP. H-1 NMR spectroscopy and HPLC were used to follow the substitution of chloride in the dichloride 1, 2, and 3 complexes by guanosine-5-monophosphate (5-GMP). This study shows that the inert and bridging ligands have an important influence on the reactivity of the studied complexes.
T2  - Journal of Coordination Chemistry
T1  - Interactions of nitrogen-donor bio-molecules with dinuclear platinum(II) complexes
VL  - 68
IS  - 17-18
SP  - 3148
EP  - 3163
DO  - 10.1080/00958972.2015.1048240
ER  - 

@article{
author = "Jovanović, Snežana and Bogojeski, Jovana V. and Petković, Marijana and Bugarčić, Živadin D.",
year = "2015",
abstract = "Substitution reactions of the dinuclear Pt(II) complexes, [{Pt(en) Cl}(2)(mu-pz)](2+) (1), [{Pt(dach)Cl}(2) (mu-pz)](2)+ (2) and [{Pt(dach)Cl}(2)(mu-4,4-bipy)](2+) (3), and corresponding aqua analogs with selected biologically important ligands, viz. 1,2,4-triazole, L-histidine (L-His) and guanosine-5-monophosphate (5-GMP) were studied under pseudo-first-order conditions as a function of concentration and temperature using UV-vis spectrophotometry. The reactions of the chloride complexes were followed in aqueous 25 mmol L-1 Hepes buffer in the presence of 40 mmol L-1 NaCl at pH 7.2, whereas the reactions of the aqua complexes were studied at pH 2.5. Two consecutive reaction steps, which both depend on the nucleophile concentration, were observed in all cases. The second-order rate constants for both reaction steps indicate a decrease in the order 1 GT 2 GT 3 for all complexes. Also, the pKa values of all three aqua complexes were determined. The order of the reactivity of the studied ligands is 1,2,4-triazole GT L-His GT 5-GMP. H-1 NMR spectroscopy and HPLC were used to follow the substitution of chloride in the dichloride 1, 2, and 3 complexes by guanosine-5-monophosphate (5-GMP). This study shows that the inert and bridging ligands have an important influence on the reactivity of the studied complexes.",
journal = "Journal of Coordination Chemistry",
title = "Interactions of nitrogen-donor bio-molecules with dinuclear platinum(II) complexes",
volume = "68",
number = "17-18",
pages = "3148-3163",
doi = "10.1080/00958972.2015.1048240"
}

Jovanović, S., Bogojeski, J. V., Petković, M.,& Bugarčić, Ž. D.. (2015). Interactions of nitrogen-donor bio-molecules with dinuclear platinum(II) complexes. in Journal of Coordination Chemistry, 68(17-18), 3148-3163.
https://doi.org/10.1080/00958972.2015.1048240

Jovanović S, Bogojeski JV, Petković M, Bugarčić ŽD. Interactions of nitrogen-donor bio-molecules with dinuclear platinum(II) complexes. in Journal of Coordination Chemistry. 2015;68(17-18):3148-3163.
doi:10.1080/00958972.2015.1048240 .

Jovanović, Snežana, Bogojeski, Jovana V., Petković, Marijana, Bugarčić, Živadin D., "Interactions of nitrogen-donor bio-molecules with dinuclear platinum(II) complexes" in Journal of Coordination Chemistry, 68, no. 17-18 (2015):3148-3163,
https://doi.org/10.1080/00958972.2015.1048240 . .