TY  - JOUR
AU  - Milojkov, Dušan V.
AU  - Sokić, Miroslav D.
AU  - Živković-Radovanović, Vukosava
AU  - Manojlović, Vaso D.
AU  - Mutavdžić, Dragosav R.
AU  - Janjić, Goran
AU  - Radotić, Ksenija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5804
AB  - In this study, luminescence and antibacterial behavior of pure fluorapatite (FAp) and praseodymium-nitrate-carbonate co-doped fluorapatite (PrNCFAp) nanopowders were investigated. Uniform nanopowders were synthesized by precipitation reaction followed by centrifugation and systematically characterized by XRD, FTIR, SEM–EDS, TG and PL methods. XRD analysis revealed the formation of hexagonal FAp crystals, and FTIR spectra indicate the presence of nitrate (NO3−) and carbonate (CO32−) species. SEM analyzes confirm agglomerates composed of irregular nanometer-sized spheres. Emission of FAp nanopowder occurred in the violet-blue region of the visible part of the spectrum, with redshift to the blue-green color region when Pr3+, NO3− and CO32− co-doped in the lattice. Analysis of luminescence spectra by MCR-ALS method extract three fluorophores from the PrNCFAp sample and showed simultaneous existents of emission-reabsorption-emission between dopants in FAp lattice. Antibacterial activity against pathogen Staphylococcus aureus was investigated before and after treatment of nanopowders by UVA radiation of 365 nm. Nanopowders irradiated with UVA compared to non-irradiated reduced Staphylococcus aureus by 84.9% for PrNCFAp and 33.3% for FAp in the first 0.5 h of contact, and 76.1% and 42.9% after 24 h of contact. In addition, the obtained luminescent nanomaterials showed a low degree of hemolytic activity and could potentially be candidates for further research in dentistry.
PB  - Springer
T2  - Optical and Quantum Electronics
T1  - Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions
VL  - 55
IS  - 1
SP  - 84
DO  - 10.1007/s11082-022-04347-7
ER  - 

@article{
author = "Milojkov, Dušan V. and Sokić, Miroslav D. and Živković-Radovanović, Vukosava and Manojlović, Vaso D. and Mutavdžić, Dragosav R. and Janjić, Goran and Radotić, Ksenija",
year = "2023",
abstract = "In this study, luminescence and antibacterial behavior of pure fluorapatite (FAp) and praseodymium-nitrate-carbonate co-doped fluorapatite (PrNCFAp) nanopowders were investigated. Uniform nanopowders were synthesized by precipitation reaction followed by centrifugation and systematically characterized by XRD, FTIR, SEM–EDS, TG and PL methods. XRD analysis revealed the formation of hexagonal FAp crystals, and FTIR spectra indicate the presence of nitrate (NO3−) and carbonate (CO32−) species. SEM analyzes confirm agglomerates composed of irregular nanometer-sized spheres. Emission of FAp nanopowder occurred in the violet-blue region of the visible part of the spectrum, with redshift to the blue-green color region when Pr3+, NO3− and CO32− co-doped in the lattice. Analysis of luminescence spectra by MCR-ALS method extract three fluorophores from the PrNCFAp sample and showed simultaneous existents of emission-reabsorption-emission between dopants in FAp lattice. Antibacterial activity against pathogen Staphylococcus aureus was investigated before and after treatment of nanopowders by UVA radiation of 365 nm. Nanopowders irradiated with UVA compared to non-irradiated reduced Staphylococcus aureus by 84.9% for PrNCFAp and 33.3% for FAp in the first 0.5 h of contact, and 76.1% and 42.9% after 24 h of contact. In addition, the obtained luminescent nanomaterials showed a low degree of hemolytic activity and could potentially be candidates for further research in dentistry.",
publisher = "Springer",
journal = "Optical and Quantum Electronics",
title = "Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions",
volume = "55",
number = "1",
pages = "84",
doi = "10.1007/s11082-022-04347-7"
}

Milojkov, D. V., Sokić, M. D., Živković-Radovanović, V., Manojlović, V. D., Mutavdžić, D. R., Janjić, G.,& Radotić, K.. (2023). Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions. in Optical and Quantum Electronics
Springer., 55(1), 84.
https://doi.org/10.1007/s11082-022-04347-7

Milojkov DV, Sokić MD, Živković-Radovanović V, Manojlović VD, Mutavdžić DR, Janjić G, Radotić K. Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions. in Optical and Quantum Electronics. 2023;55(1):84.
doi:10.1007/s11082-022-04347-7 .

Milojkov, Dušan V., Sokić, Miroslav D., Živković-Radovanović, Vukosava, Manojlović, Vaso D., Mutavdžić, Dragosav R., Janjić, Goran, Radotić, Ksenija, "Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions" in Optical and Quantum Electronics, 55, no. 1 (2023):84,
https://doi.org/10.1007/s11082-022-04347-7 . .

TY  - JOUR
AU  - Šuljagić, Marija
AU  - Milenković, Milica
AU  - Uskoković, Vuk
AU  - Mirković, Miljana
AU  - Vrbica, Boško
AU  - Pavlović, Vladimir B.
AU  - Živković-Radovanović, Vukosava
AU  - Stanković, Dalibor
AU  - Anđelković, Ljubica
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5329
AB  - The emerging threat of bacterial resistance to antibiotics prompts the urgent search for biomaterials for the treatment of infectious disease. Here we report on the synthesis and characterization of a multiphasic nanocomposite comprising magnetic iron oxide and silver nanoparticles. The method of synthesis involved the combustion of a metalorganic complex and reduction of the silver ions that were exchanged and/or adsorbed on the surface of iron oxide. Different physical and chemical treatments coupled to the reduction process, including ultrasound and Lugol's iodine solution, respectively, homogenized the distribution of the silver nanoparticles on the iron oxide phase. Remarkably, using ascorbic acid as a reductant enhanced the magnetic properties of the material as a result of the reduction of the magnetic matrix alongside the silver cations. The treatment with ultrasound detached large amounts of silver from the iron oxide phase and resulted in the lowest amount of silver incorporated in the nanocomposite. Despite that, this treatment led to the highest antibacterial activity against both Gram-positive and Gram-negative strains, indicating that the homogeneity of the distribution of silver on the iron oxide matrix is a more important determinant of the antibacterial performance than the amount of silver incorporated in the material. At the same time, the treatment with Lugol's iodine equally increased the distribution homogeneity, but induced excessive ion exchange and crystal lattice substitutions, thereby adversely affecting the antibacterial performance. This has indicated that the mode of binding silver to iron oxide can compensate for the positive effects of homogeneous distribution with respect to the antibacterial performance.
PB  - Elsevier
T2  - Materials Today Communications
T1  - Silver distribution and binding mode as key determinants of the antimicrobial performance of iron oxide/silver nanocomposites
VL  - 32
SP  - 104157
DO  - 10.1016/j.mtcomm.2022.104157
ER  - 

@article{
author = "Šuljagić, Marija and Milenković, Milica and Uskoković, Vuk and Mirković, Miljana and Vrbica, Boško and Pavlović, Vladimir B. and Živković-Radovanović, Vukosava and Stanković, Dalibor and Anđelković, Ljubica",
year = "2022",
abstract = "The emerging threat of bacterial resistance to antibiotics prompts the urgent search for biomaterials for the treatment of infectious disease. Here we report on the synthesis and characterization of a multiphasic nanocomposite comprising magnetic iron oxide and silver nanoparticles. The method of synthesis involved the combustion of a metalorganic complex and reduction of the silver ions that were exchanged and/or adsorbed on the surface of iron oxide. Different physical and chemical treatments coupled to the reduction process, including ultrasound and Lugol's iodine solution, respectively, homogenized the distribution of the silver nanoparticles on the iron oxide phase. Remarkably, using ascorbic acid as a reductant enhanced the magnetic properties of the material as a result of the reduction of the magnetic matrix alongside the silver cations. The treatment with ultrasound detached large amounts of silver from the iron oxide phase and resulted in the lowest amount of silver incorporated in the nanocomposite. Despite that, this treatment led to the highest antibacterial activity against both Gram-positive and Gram-negative strains, indicating that the homogeneity of the distribution of silver on the iron oxide matrix is a more important determinant of the antibacterial performance than the amount of silver incorporated in the material. At the same time, the treatment with Lugol's iodine equally increased the distribution homogeneity, but induced excessive ion exchange and crystal lattice substitutions, thereby adversely affecting the antibacterial performance. This has indicated that the mode of binding silver to iron oxide can compensate for the positive effects of homogeneous distribution with respect to the antibacterial performance.",
publisher = "Elsevier",
journal = "Materials Today Communications",
title = "Silver distribution and binding mode as key determinants of the antimicrobial performance of iron oxide/silver nanocomposites",
volume = "32",
pages = "104157",
doi = "10.1016/j.mtcomm.2022.104157"
}

Šuljagić, M., Milenković, M., Uskoković, V., Mirković, M., Vrbica, B., Pavlović, V. B., Živković-Radovanović, V., Stanković, D.,& Anđelković, L.. (2022). Silver distribution and binding mode as key determinants of the antimicrobial performance of iron oxide/silver nanocomposites. in Materials Today Communications
Elsevier., 32, 104157.
https://doi.org/10.1016/j.mtcomm.2022.104157

Šuljagić M, Milenković M, Uskoković V, Mirković M, Vrbica B, Pavlović VB, Živković-Radovanović V, Stanković D, Anđelković L. Silver distribution and binding mode as key determinants of the antimicrobial performance of iron oxide/silver nanocomposites. in Materials Today Communications. 2022;32:104157.
doi:10.1016/j.mtcomm.2022.104157 .

Šuljagić, Marija, Milenković, Milica, Uskoković, Vuk, Mirković, Miljana, Vrbica, Boško, Pavlović, Vladimir B., Živković-Radovanović, Vukosava, Stanković, Dalibor, Anđelković, Ljubica, "Silver distribution and binding mode as key determinants of the antimicrobial performance of iron oxide/silver nanocomposites" in Materials Today Communications, 32 (2022):104157,
https://doi.org/10.1016/j.mtcomm.2022.104157 . .

TY  - JOUR
AU  - Šegan, Sandra
AU  - Živković-Radovanović, Vukosava
AU  - Tosti, Tomislav
AU  - Ristivojević, Petar
AU  - Milojković-Opsenica, Dušanka
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4770
AB  - Growing antibiotic resistance creates a need to find new antimicrobial agents characterized by diverse chemical structures and pharmaceutical activity. The higher plants synthesize many specialized metabolites as a part of their normal metabolic activity and have been extensively used for centuries in treatment of different diseases. They have a wide activity range depending on the species, topography and climate, and may have different categories of active principles. In contrast to conventional antimicrobial techniques, planar chromatography in combination with biological detection can be an appropriate method of choice for fast, simple, and low-cost screening of plant extract for successful detection of antimicrobial agents which can be good candidates for lead compounds. To date, all bioautography steps such as chromatographic separation, detection with bacteria cells, incubation, and visualization of bioactive bands were improved and optimized. This review gives an overview of bioautography procedure from extraction to structure elucidation of antimicrobial compounds from plants.
PB  - USA :Taylor & Francis INC
T2  - Journal of Liquid Chromatography & Related Technologies
T1  - Thin-layer chromatography in bioassays of antimicrobial compounds from plants
DO  - 10.1080/10826076.2021.1968429
ER  - 

@article{
author = "Šegan, Sandra and Živković-Radovanović, Vukosava and Tosti, Tomislav and Ristivojević, Petar and Milojković-Opsenica, Dušanka",
year = "2021",
abstract = "Growing antibiotic resistance creates a need to find new antimicrobial agents characterized by diverse chemical structures and pharmaceutical activity. The higher plants synthesize many specialized metabolites as a part of their normal metabolic activity and have been extensively used for centuries in treatment of different diseases. They have a wide activity range depending on the species, topography and climate, and may have different categories of active principles. In contrast to conventional antimicrobial techniques, planar chromatography in combination with biological detection can be an appropriate method of choice for fast, simple, and low-cost screening of plant extract for successful detection of antimicrobial agents which can be good candidates for lead compounds. To date, all bioautography steps such as chromatographic separation, detection with bacteria cells, incubation, and visualization of bioactive bands were improved and optimized. This review gives an overview of bioautography procedure from extraction to structure elucidation of antimicrobial compounds from plants.",
publisher = "USA :Taylor & Francis INC",
journal = "Journal of Liquid Chromatography & Related Technologies",
title = "Thin-layer chromatography in bioassays of antimicrobial compounds from plants",
doi = "10.1080/10826076.2021.1968429"
}

Šegan, S., Živković-Radovanović, V., Tosti, T., Ristivojević, P.,& Milojković-Opsenica, D.. (2021). Thin-layer chromatography in bioassays of antimicrobial compounds from plants. in Journal of Liquid Chromatography & Related Technologies
USA :Taylor & Francis INC..
https://doi.org/10.1080/10826076.2021.1968429

Šegan S, Živković-Radovanović V, Tosti T, Ristivojević P, Milojković-Opsenica D. Thin-layer chromatography in bioassays of antimicrobial compounds from plants. in Journal of Liquid Chromatography & Related Technologies. 2021;.
doi:10.1080/10826076.2021.1968429 .

Šegan, Sandra, Živković-Radovanović, Vukosava, Tosti, Tomislav, Ristivojević, Petar, Milojković-Opsenica, Dušanka, "Thin-layer chromatography in bioassays of antimicrobial compounds from plants" in Journal of Liquid Chromatography & Related Technologies (2021),
https://doi.org/10.1080/10826076.2021.1968429 . .

TY  - JOUR
AU  - Milenković, Milica R.
AU  - Živković-Radovanović, Vukosava
AU  - Anđelković, Ljubica
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3710
AB  - In this study, four novel quaternary phosphonium acylhydrazones, derivatives of (3-formyl-4-hydroxybenzyl)triphenylphosphonium chloride, have been synthesized and their structures elucidated from IR and NMR spectra, and elemental analysis. All synthesized compounds have been tested for their antimicrobial activity, and acylhydrazones have demonstrated selective activity against Gram-positive bacteria strains.
PB  - Springer
T2  - Russian Journal of General Chemistry
T1  - Synthesis and Antimicrobial Activity of (3-Formyl-4-hydroxybenzyl)triphenylphosphonium Chloride Acylhydrazones
VL  - 90
IS  - 9
SP  - 1716
EP  - 1720
DO  - 10.1134/S1070363220090194
ER  - 

@article{
author = "Milenković, Milica R. and Živković-Radovanović, Vukosava and Anđelković, Ljubica",
year = "2020",
abstract = "In this study, four novel quaternary phosphonium acylhydrazones, derivatives of (3-formyl-4-hydroxybenzyl)triphenylphosphonium chloride, have been synthesized and their structures elucidated from IR and NMR spectra, and elemental analysis. All synthesized compounds have been tested for their antimicrobial activity, and acylhydrazones have demonstrated selective activity against Gram-positive bacteria strains.",
publisher = "Springer",
journal = "Russian Journal of General Chemistry",
title = "Synthesis and Antimicrobial Activity of (3-Formyl-4-hydroxybenzyl)triphenylphosphonium Chloride Acylhydrazones",
volume = "90",
number = "9",
pages = "1716-1720",
doi = "10.1134/S1070363220090194"
}

Milenković, M. R., Živković-Radovanović, V.,& Anđelković, L.. (2020). Synthesis and Antimicrobial Activity of (3-Formyl-4-hydroxybenzyl)triphenylphosphonium Chloride Acylhydrazones. in Russian Journal of General Chemistry
Springer., 90(9), 1716-1720.
https://doi.org/10.1134/S1070363220090194

Milenković MR, Živković-Radovanović V, Anđelković L. Synthesis and Antimicrobial Activity of (3-Formyl-4-hydroxybenzyl)triphenylphosphonium Chloride Acylhydrazones. in Russian Journal of General Chemistry. 2020;90(9):1716-1720.
doi:10.1134/S1070363220090194 .

Milenković, Milica R., Živković-Radovanović, Vukosava, Anđelković, Ljubica, "Synthesis and Antimicrobial Activity of (3-Formyl-4-hydroxybenzyl)triphenylphosphonium Chloride Acylhydrazones" in Russian Journal of General Chemistry, 90, no. 9 (2020):1716-1720,
https://doi.org/10.1134/S1070363220090194 . .

TY  - JOUR
AU  - Milojkov, Dušan
AU  - Stanić, Vojislav
AU  - Dimović, Slavko
AU  - Mutavdžić, Dragosav
AU  - Živković-Radovanović, Vukosava
AU  - Janjić, Goran
AU  - Radotić, Ksenija
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3254
AB  - In the present study we have analyzed effects of Ag+ ions doping on energetic profiles of nanophosphors materials based on fluorapatite crystal system. The UV radiation absorption and luminescence properties of monophase fluorapatite (FAP) and Ag+ doped fluorapatite (AgFAP) nanomaterials obtained by neutralization method were investigated using the photoluminescence spectrophotometry. The excitation-emission profiles of nanomaterials were analyzed statistically by MCR-ALS method and number of fluorophores was extracted. FAP lattice absorbed light at 350 nm in the UVA part of spectrum, and with increasing concentration of Ag+ ions new absorption maximum appeared at 270 nm in the UVC part. Fluorescence of FAP nanoparticles was in violet region of visible part of the spectrum, with a red shift to the green region when Ag+ was doped in lattice. MCR-ALS analyses of fluorescence spectra confirm formation of two maxima, at 484 and 505 nm, as a consequence of Ag+ ions doping in FAP lattice at Ca1 (4f) sites. The results of quantum chemical calculations showed that an Ag+ ion is stronger bonded to the binding site 1 (-1352:6 kcal/mol) than to the binding site 2 (-1249:0 kcal/mol). Considering that AgFAP1 nanopowder absorbs photons over all part of UV radiation spectrum, this material might be used as potential radiation protective nanomaterial.
PB  - Polish Academy of Sciences
T2  - Acta Physica Polonica A
T1  - Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method
VL  - 136
IS  - 1
SP  - 86
EP  - 91
DO  - 10.12693/APhysPolA.136.86
ER  - 

@article{
author = "Milojkov, Dušan and Stanić, Vojislav and Dimović, Slavko and Mutavdžić, Dragosav and Živković-Radovanović, Vukosava and Janjić, Goran and Radotić, Ksenija",
year = "2019",
abstract = "In the present study we have analyzed effects of Ag+ ions doping on energetic profiles of nanophosphors materials based on fluorapatite crystal system. The UV radiation absorption and luminescence properties of monophase fluorapatite (FAP) and Ag+ doped fluorapatite (AgFAP) nanomaterials obtained by neutralization method were investigated using the photoluminescence spectrophotometry. The excitation-emission profiles of nanomaterials were analyzed statistically by MCR-ALS method and number of fluorophores was extracted. FAP lattice absorbed light at 350 nm in the UVA part of spectrum, and with increasing concentration of Ag+ ions new absorption maximum appeared at 270 nm in the UVC part. Fluorescence of FAP nanoparticles was in violet region of visible part of the spectrum, with a red shift to the green region when Ag+ was doped in lattice. MCR-ALS analyses of fluorescence spectra confirm formation of two maxima, at 484 and 505 nm, as a consequence of Ag+ ions doping in FAP lattice at Ca1 (4f) sites. The results of quantum chemical calculations showed that an Ag+ ion is stronger bonded to the binding site 1 (-1352:6 kcal/mol) than to the binding site 2 (-1249:0 kcal/mol). Considering that AgFAP1 nanopowder absorbs photons over all part of UV radiation spectrum, this material might be used as potential radiation protective nanomaterial.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method",
volume = "136",
number = "1",
pages = "86-91",
doi = "10.12693/APhysPolA.136.86"
}

Milojkov, D., Stanić, V., Dimović, S., Mutavdžić, D., Živković-Radovanović, V., Janjić, G.,& Radotić, K.. (2019). Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method. in Acta Physica Polonica A
Polish Academy of Sciences., 136(1), 86-91.
https://doi.org/10.12693/APhysPolA.136.86

Milojkov D, Stanić V, Dimović S, Mutavdžić D, Živković-Radovanović V, Janjić G, Radotić K. Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method. in Acta Physica Polonica A. 2019;136(1):86-91.
doi:10.12693/APhysPolA.136.86 .

Milojkov, Dušan, Stanić, Vojislav, Dimović, Slavko, Mutavdžić, Dragosav, Živković-Radovanović, Vukosava, Janjić, Goran, Radotić, Ksenija, "Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method" in Acta Physica Polonica A, 136, no. 1 (2019):86-91,
https://doi.org/10.12693/APhysPolA.136.86 . .

TY  - JOUR
AU  - Vučković, Gordana
AU  - Tanasković, Slađana B.
AU  - Antonijević-Nikolić, Mirjana
AU  - Živković-Radovanović, Vukosava
AU  - Gojgić-Cvijović, Gordana
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/504
AB  - Four new air-stable mixed-ligand Co(II) complexes having the general formula [Co2(Y)tpmc]Z3×q(H2O/CH3CN) (HY = N-methylglycine/N,N-dimethylglycine, Z = - 4BF , qH2O=4 or 3; HY=S-norvaline/S-valine Z=-ClO4 , qCH3CN = 0.5; qH2O = 0.5; tpmc = N,N',N'',N'''-tetrakis(2-pyridylmethyl)- -1,4,8,11-tetraazacyclotetradecane) were prepared. The composition, some physical and chemical properties and their tentative geometries were evaluated based on elemental analysis (C, H, N), conductometric and magnetic measurements, spectroscopic data (UV/Vis, IR) and cyclic voltammetry. The data were compared with earlier described analogous complexes containing the macrocyclic ligand and aliphatic aminocarboxylates. It is assumed that all complexes are binuclear with an exo coordination mode of the octaazamacrocyclic pendant ligand in the boat conformation. In addition, two -N-(CH2)2-N- portions of the cyclam ring within the tpmc ligand and Co(II) ions in the high-spin state are most probably bridged via oxygen atoms from the anion of the aminocarboxylate/derivatives, whereas nitrogen atoms rest uncoordinated. In all cases, a combined chelate-bridged coordination is proposed as the most probable. The complexes were electrochemically stable in the potential range -1.0 to 1.0 V. They were also preliminary assayed toward some microorganisms together with the ligands, starting simple salts and solvents as test substances. In some cases, certain antimicrobial activity of the complexes was detected.
AB  - Dobijena su četiri nova mešovito-ligandna kompleksa Co(II), stabilna na vazduhu, opšte formule [Co2(Y)tpmc]Z3×q(H2O/CH3CN) (HY = N-metilglicin/N,N-dimetilglicin, Z=-4BF , qH2O=4 ili 3); HY = S-norvalin/S-valin, Z=-ClO4, qCH3CN=0,5; qH2O=0,5; tpmc= N,N',N'',N'''-tetrakis(2-piridilmetil)-1,4,8,11-tetraazaciklotetradekan). Sastav, neka fizička i hemijska svojstva i njihove približne geometrije su izvedene na osnovu elementalne analize (C, H, N), konduktometrijskih i magnetnih merenja, spektroskopskih podataka (UV/Vis, IR) odnosno ciklične voltametrije. Podaci su upoređeni sa ranije opisanim analogim kompleksima koji sadrže makrociklični ligand i alifatične aminokarboksilate. Pretpostavljeno je da su svi kompleksi dinuklearni sa egzo koordinacijom pendantnog oktaazamakrocikla u konformaciji lađe. Pored dva -N-(CH2)2-N- dela ciklamovog prstena unutar tpmc-a, joni visoko-spinskog Co(II) su najverovatnije premošćeni angažovanjem kiseonikovih atoma sa anjona aminokarboksilata/derivata, dok atomi azota ostaju nekoordinovani. Za sve komplekse predložen je kombinovani helatno-mostovni način vezivanja. Kompleksi su bili elektrohemijski stabilni u opsegu potencijala -1,0 do 1,0 V. Oni su preliminarno testirani na mikroorganizme zajedno sa ligandima, polaznim prostim solima i rastvaračima kao test supstancama. U nekim slučajevima je nađena izvesna antimikrobna aktivnost kompleksa.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - A study of novel cobalt(II) octaazamacrocyclic complexes with aminocarboxylates or their derivatives
T1  - Proučavanje novih kompleksa kobalta(II) sa oktaazamakrociklom i aminokarboksilatima ili njihovim derivatima
VL  - 74
IS  - 6
SP  - 629
EP  - 640
DO  - 10.2298/JSC0906629V
ER  - 

@article{
author = "Vučković, Gordana and Tanasković, Slađana B. and Antonijević-Nikolić, Mirjana and Živković-Radovanović, Vukosava and Gojgić-Cvijović, Gordana",
year = "2009",
abstract = "Four new air-stable mixed-ligand Co(II) complexes having the general formula [Co2(Y)tpmc]Z3×q(H2O/CH3CN) (HY = N-methylglycine/N,N-dimethylglycine, Z = - 4BF , qH2O=4 or 3; HY=S-norvaline/S-valine Z=-ClO4 , qCH3CN = 0.5; qH2O = 0.5; tpmc = N,N',N'',N'''-tetrakis(2-pyridylmethyl)- -1,4,8,11-tetraazacyclotetradecane) were prepared. The composition, some physical and chemical properties and their tentative geometries were evaluated based on elemental analysis (C, H, N), conductometric and magnetic measurements, spectroscopic data (UV/Vis, IR) and cyclic voltammetry. The data were compared with earlier described analogous complexes containing the macrocyclic ligand and aliphatic aminocarboxylates. It is assumed that all complexes are binuclear with an exo coordination mode of the octaazamacrocyclic pendant ligand in the boat conformation. In addition, two -N-(CH2)2-N- portions of the cyclam ring within the tpmc ligand and Co(II) ions in the high-spin state are most probably bridged via oxygen atoms from the anion of the aminocarboxylate/derivatives, whereas nitrogen atoms rest uncoordinated. In all cases, a combined chelate-bridged coordination is proposed as the most probable. The complexes were electrochemically stable in the potential range -1.0 to 1.0 V. They were also preliminary assayed toward some microorganisms together with the ligands, starting simple salts and solvents as test substances. In some cases, certain antimicrobial activity of the complexes was detected., Dobijena su četiri nova mešovito-ligandna kompleksa Co(II), stabilna na vazduhu, opšte formule [Co2(Y)tpmc]Z3×q(H2O/CH3CN) (HY = N-metilglicin/N,N-dimetilglicin, Z=-4BF , qH2O=4 ili 3); HY = S-norvalin/S-valin, Z=-ClO4, qCH3CN=0,5; qH2O=0,5; tpmc= N,N',N'',N'''-tetrakis(2-piridilmetil)-1,4,8,11-tetraazaciklotetradekan). Sastav, neka fizička i hemijska svojstva i njihove približne geometrije su izvedene na osnovu elementalne analize (C, H, N), konduktometrijskih i magnetnih merenja, spektroskopskih podataka (UV/Vis, IR) odnosno ciklične voltametrije. Podaci su upoređeni sa ranije opisanim analogim kompleksima koji sadrže makrociklični ligand i alifatične aminokarboksilate. Pretpostavljeno je da su svi kompleksi dinuklearni sa egzo koordinacijom pendantnog oktaazamakrocikla u konformaciji lađe. Pored dva -N-(CH2)2-N- dela ciklamovog prstena unutar tpmc-a, joni visoko-spinskog Co(II) su najverovatnije premošćeni angažovanjem kiseonikovih atoma sa anjona aminokarboksilata/derivata, dok atomi azota ostaju nekoordinovani. Za sve komplekse predložen je kombinovani helatno-mostovni način vezivanja. Kompleksi su bili elektrohemijski stabilni u opsegu potencijala -1,0 do 1,0 V. Oni su preliminarno testirani na mikroorganizme zajedno sa ligandima, polaznim prostim solima i rastvaračima kao test supstancama. U nekim slučajevima je nađena izvesna antimikrobna aktivnost kompleksa.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "A study of novel cobalt(II) octaazamacrocyclic complexes with aminocarboxylates or their derivatives, Proučavanje novih kompleksa kobalta(II) sa oktaazamakrociklom i aminokarboksilatima ili njihovim derivatima",
volume = "74",
number = "6",
pages = "629-640",
doi = "10.2298/JSC0906629V"
}

Vučković, G., Tanasković, S. B., Antonijević-Nikolić, M., Živković-Radovanović, V.,& Gojgić-Cvijović, G.. (2009). A study of novel cobalt(II) octaazamacrocyclic complexes with aminocarboxylates or their derivatives. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 74(6), 629-640.
https://doi.org/10.2298/JSC0906629V

Vučković G, Tanasković SB, Antonijević-Nikolić M, Živković-Radovanović V, Gojgić-Cvijović G. A study of novel cobalt(II) octaazamacrocyclic complexes with aminocarboxylates or their derivatives. in Journal of the Serbian Chemical Society. 2009;74(6):629-640.
doi:10.2298/JSC0906629V .

Vučković, Gordana, Tanasković, Slađana B., Antonijević-Nikolić, Mirjana, Živković-Radovanović, Vukosava, Gojgić-Cvijović, Gordana, "A study of novel cobalt(II) octaazamacrocyclic complexes with aminocarboxylates or their derivatives" in Journal of the Serbian Chemical Society, 74, no. 6 (2009):629-640,
https://doi.org/10.2298/JSC0906629V . .