TY  - JOUR
AU  - Jelić, Aleksandra
AU  - Sekulić, Milica
AU  - Travica, Milan
AU  - Gržetić, Jelena
AU  - Ugrinović, Vukašin
AU  - Marinković, Aleksandar D.
AU  - Božić, Aleksandra
AU  - Stamenović, Marina
AU  - Putić, Slaviša
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5110
AB  - In this study, silicate nanofillers; dicalcium silicate, magnesium silicate, tricalcium silicate, and wollastonite; were synthesized using four different methods and incorporated into the epoxy resin to improve its mechanical properties. Characterization of the newly synthesized nanofillers was performed using Fourier-transformation infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The purpose of this study was to analyze newly developed composite materials reinforced with silicate nanoparticles utilizing tensile testing and a full-field non-contact 3D Digital Image Correlation (DIC) method. Analysis of deformation and displacement fields gives precise material behavior during testing. Testing results allowed a more reliable assessment of the structural integrity of epoxy composite materials reinforced using different silicate nanofillers. It was concluded that the addition of 3% of dicalcium silicate, magnesium silicate, tricalcium silicate, and wollastonite lead to the increasement of tensile strength up to 31.5%, 29.0%, 27.5%, and 23.5% in comparison with neat epoxy, respectively. In order to offer more trustworthy information about the viscoelastic behavior of neat epoxy and composites, a dynamic mechanical analysis (DMA) was also performed and rheological measurements of uncured epoxy matrix and epoxy suspensions were obtained.
PB  - MDPI
T2  - Polymers
T1  - Determination of Mechanical Properties of Epoxy Composite Materials Reinforced with Silicate Nanofillers Using Digital Image Correlation (DIC)
IS  - 6
SP  - 1255
VL  - 14
DO  - 10.3390/polym14061255
ER  - 

@article{
author = "Jelić, Aleksandra and Sekulić, Milica and Travica, Milan and Gržetić, Jelena and Ugrinović, Vukašin and Marinković, Aleksandar D. and Božić, Aleksandra and Stamenović, Marina and Putić, Slaviša",
year = "2022",
abstract = "In this study, silicate nanofillers; dicalcium silicate, magnesium silicate, tricalcium silicate, and wollastonite; were synthesized using four different methods and incorporated into the epoxy resin to improve its mechanical properties. Characterization of the newly synthesized nanofillers was performed using Fourier-transformation infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The purpose of this study was to analyze newly developed composite materials reinforced with silicate nanoparticles utilizing tensile testing and a full-field non-contact 3D Digital Image Correlation (DIC) method. Analysis of deformation and displacement fields gives precise material behavior during testing. Testing results allowed a more reliable assessment of the structural integrity of epoxy composite materials reinforced using different silicate nanofillers. It was concluded that the addition of 3% of dicalcium silicate, magnesium silicate, tricalcium silicate, and wollastonite lead to the increasement of tensile strength up to 31.5%, 29.0%, 27.5%, and 23.5% in comparison with neat epoxy, respectively. In order to offer more trustworthy information about the viscoelastic behavior of neat epoxy and composites, a dynamic mechanical analysis (DMA) was also performed and rheological measurements of uncured epoxy matrix and epoxy suspensions were obtained.",
publisher = "MDPI",
journal = "Polymers",
title = "Determination of Mechanical Properties of Epoxy Composite Materials Reinforced with Silicate Nanofillers Using Digital Image Correlation (DIC)",
number = "6",
pages = "1255",
volume = "14",
doi = "10.3390/polym14061255"
}

Jelić, A., Sekulić, M., Travica, M., Gržetić, J., Ugrinović, V., Marinković, A. D., Božić, A., Stamenović, M.,& Putić, S.. (2022). Determination of Mechanical Properties of Epoxy Composite Materials Reinforced with Silicate Nanofillers Using Digital Image Correlation (DIC). in Polymers
MDPI., 14(6), 1255.
https://doi.org/10.3390/polym14061255

Jelić A, Sekulić M, Travica M, Gržetić J, Ugrinović V, Marinković AD, Božić A, Stamenović M, Putić S. Determination of Mechanical Properties of Epoxy Composite Materials Reinforced with Silicate Nanofillers Using Digital Image Correlation (DIC). in Polymers. 2022;14(6):1255.
doi:10.3390/polym14061255 .

Jelić, Aleksandra, Sekulić, Milica, Travica, Milan, Gržetić, Jelena, Ugrinović, Vukašin, Marinković, Aleksandar D., Božić, Aleksandra, Stamenović, Marina, Putić, Slaviša, "Determination of Mechanical Properties of Epoxy Composite Materials Reinforced with Silicate Nanofillers Using Digital Image Correlation (DIC)" in Polymers, 14, no. 6 (2022):1255,
https://doi.org/10.3390/polym14061255 . .

TY  - JOUR
AU  - Mrđan, Gorana S.
AU  - Matijević, Borko M.
AU  - Vastag, Gyongyi
AU  - Božić, Aleksandra R.
AU  - Marinković, Aleksandar
AU  - Milčić, Miloš
AU  - Stojiljković, Ivana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4497
AB  - Carbohydrazones are compounds that are increasingly studied due to their wide potential biological activity. Monocarbohydrazones (mCHs), as one of the carbohydrazone derivatives, so far have been poorly investigated. For a more detailed study, in this paper, eighteen compounds of monocarbohydrazones (eight known and ten newly synthesized derivatives) were synthesized and characterized using NMR and IR spectroscopy. As carbohydrazones show E/Z isomerization caused by the presence of the imino group, some of the synthesized mCHs are in the form of a mixture of these two isomers. The effects of specific and nonspecific solvent-solute interactions on the UV absorption maxima shifts were evaluated using linear free energy relationships principles, i.e., using Kamlet-Taft's and Catalan's models. For more information about interactions between dissolved substance and the surrounding medium, correlations have been made with Hansen's solubility parameters. The influence of the structure on the spectral behavior of the compounds tested was interpreted using Hammett's equation. Experimentally obtained physicochemical properties of mCHs were compared to and confirmed with computational methods that included TD-DFT calculations and MP2 geometry optimizations. Graphic abstract
PB  - Springer International Publishing Ag, Cham
T2  - Chemical Papers
T1  - Synthesis, solvent interactions and computational study of monocarbohydrazones
EP  - 2674
IS  - 8
SP  - 2653
VL  - 74
DO  - 10.1007/s11696-020-01106-4
ER  - 

@article{
author = "Mrđan, Gorana S. and Matijević, Borko M. and Vastag, Gyongyi and Božić, Aleksandra R. and Marinković, Aleksandar and Milčić, Miloš and Stojiljković, Ivana",
year = "2020",
abstract = "Carbohydrazones are compounds that are increasingly studied due to their wide potential biological activity. Monocarbohydrazones (mCHs), as one of the carbohydrazone derivatives, so far have been poorly investigated. For a more detailed study, in this paper, eighteen compounds of monocarbohydrazones (eight known and ten newly synthesized derivatives) were synthesized and characterized using NMR and IR spectroscopy. As carbohydrazones show E/Z isomerization caused by the presence of the imino group, some of the synthesized mCHs are in the form of a mixture of these two isomers. The effects of specific and nonspecific solvent-solute interactions on the UV absorption maxima shifts were evaluated using linear free energy relationships principles, i.e., using Kamlet-Taft's and Catalan's models. For more information about interactions between dissolved substance and the surrounding medium, correlations have been made with Hansen's solubility parameters. The influence of the structure on the spectral behavior of the compounds tested was interpreted using Hammett's equation. Experimentally obtained physicochemical properties of mCHs were compared to and confirmed with computational methods that included TD-DFT calculations and MP2 geometry optimizations. Graphic abstract",
publisher = "Springer International Publishing Ag, Cham",
journal = "Chemical Papers",
title = "Synthesis, solvent interactions and computational study of monocarbohydrazones",
pages = "2674-2653",
number = "8",
volume = "74",
doi = "10.1007/s11696-020-01106-4"
}

Mrđan, G. S., Matijević, B. M., Vastag, G., Božić, A. R., Marinković, A., Milčić, M.,& Stojiljković, I.. (2020). Synthesis, solvent interactions and computational study of monocarbohydrazones. in Chemical Papers
Springer International Publishing Ag, Cham., 74(8), 2653-2674.
https://doi.org/10.1007/s11696-020-01106-4

Mrđan GS, Matijević BM, Vastag G, Božić AR, Marinković A, Milčić M, Stojiljković I. Synthesis, solvent interactions and computational study of monocarbohydrazones. in Chemical Papers. 2020;74(8):2653-2674.
doi:10.1007/s11696-020-01106-4 .

Mrđan, Gorana S., Matijević, Borko M., Vastag, Gyongyi, Božić, Aleksandra R., Marinković, Aleksandar, Milčić, Miloš, Stojiljković, Ivana, "Synthesis, solvent interactions and computational study of monocarbohydrazones" in Chemical Papers, 74, no. 8 (2020):2653-2674,
https://doi.org/10.1007/s11696-020-01106-4 . .

TY  - JOUR
AU  - Božić, Aleksandra R.
AU  - Filipović, Nenad R.
AU  - Verbić, Tatjana
AU  - Milčić, Miloš
AU  - Todorović, Tamara
AU  - Cvijetić, Ilija
AU  - Klisurić, Olivera
AU  - Radišić, Marina
AU  - Marinković, Aleksandar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4355
AB  - The substituent and solvent effect on intramolecular charge transfer (ICT) of twelve monocarbohydrazones (mCHs) were studied using experimental and theoretical methodology. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear free energy relationships (LFERs) principles, i.e. using the Kamlet-Taft and Catalan models. Linear free energy relationships in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on UV-Vis, NMR and pK(a) change. According to crystallographic data and quantum chemical calculations, the trans (E) form was found to be more stable. A photochromism of compounds with 2-hydroxyphenyl and 2-pyridylimino groups substituted at imine carbon atom results in E/Z isomerization due to creation of intermolecular hydrogen bond in E and Z form, respectively. Multiple stage mass spectrometry (MS-MSn) analysis was applied to define main fragmentation pathways. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2/6-311 G(d,p) and time-dependent density functional (TD-DFT) methods. TD-DFT calculations were performed to quantify the efficiency of intramolecular charge transfer (ICT) with the aid of the charge-transfer distance (DCT) and the amount of transferred charge (QCT) calculation. It was found that both substituents and solvents influence electron density shift i.e. extent of conjugation, and affect ICT character in the course of excitation.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - A detailed experimental and computational study of monocarbohydrazones
EP  - 953
IS  - 1
SP  - 932
VL  - 13
DO  - 10.1016/j.arabjc.2017.08.010
ER  - 

@article{
author = "Božić, Aleksandra R. and Filipović, Nenad R. and Verbić, Tatjana and Milčić, Miloš and Todorović, Tamara and Cvijetić, Ilija and Klisurić, Olivera and Radišić, Marina and Marinković, Aleksandar",
year = "2020",
abstract = "The substituent and solvent effect on intramolecular charge transfer (ICT) of twelve monocarbohydrazones (mCHs) were studied using experimental and theoretical methodology. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear free energy relationships (LFERs) principles, i.e. using the Kamlet-Taft and Catalan models. Linear free energy relationships in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on UV-Vis, NMR and pK(a) change. According to crystallographic data and quantum chemical calculations, the trans (E) form was found to be more stable. A photochromism of compounds with 2-hydroxyphenyl and 2-pyridylimino groups substituted at imine carbon atom results in E/Z isomerization due to creation of intermolecular hydrogen bond in E and Z form, respectively. Multiple stage mass spectrometry (MS-MSn) analysis was applied to define main fragmentation pathways. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2/6-311 G(d,p) and time-dependent density functional (TD-DFT) methods. TD-DFT calculations were performed to quantify the efficiency of intramolecular charge transfer (ICT) with the aid of the charge-transfer distance (DCT) and the amount of transferred charge (QCT) calculation. It was found that both substituents and solvents influence electron density shift i.e. extent of conjugation, and affect ICT character in the course of excitation.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "A detailed experimental and computational study of monocarbohydrazones",
pages = "953-932",
number = "1",
volume = "13",
doi = "10.1016/j.arabjc.2017.08.010"
}

Božić, A. R., Filipović, N. R., Verbić, T., Milčić, M., Todorović, T., Cvijetić, I., Klisurić, O., Radišić, M.,& Marinković, A.. (2020). A detailed experimental and computational study of monocarbohydrazones. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 13(1), 932-953.
https://doi.org/10.1016/j.arabjc.2017.08.010

Božić AR, Filipović NR, Verbić T, Milčić M, Todorović T, Cvijetić I, Klisurić O, Radišić M, Marinković A. A detailed experimental and computational study of monocarbohydrazones. in Arabian Journal of Chemistry. 2020;13(1):932-953.
doi:10.1016/j.arabjc.2017.08.010 .

Božić, Aleksandra R., Filipović, Nenad R., Verbić, Tatjana, Milčić, Miloš, Todorović, Tamara, Cvijetić, Ilija, Klisurić, Olivera, Radišić, Marina, Marinković, Aleksandar, "A detailed experimental and computational study of monocarbohydrazones" in Arabian Journal of Chemistry, 13, no. 1 (2020):932-953,
https://doi.org/10.1016/j.arabjc.2017.08.010 . .

TY  - CONF
AU  - Kovačina, Jovanka N.
AU  - Milošević, Milena D.
AU  - Božić, Aleksandra R.
AU  - Jovanović, Aleksandar
AU  - Marinković, Aleksandar
AU  - Onjia, Antonije
AU  - Povrenović, Dragan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4171
AB  - Due to the development of industry and population growth during the in recent years, there are problems with wastewater from production that needs to be addressed in an environmentally and economical way. All wastewaters from industry, no matter how they are created, contain harmful substances that may have some degree of toxicity, must be treated if their quality does not meet the legal requirements. The purpose of wastewater treatment is to remove harmful substances, thereby reducing its pollution level, and at the same time, it also has a certain economic and environmental effect. Therefore, wastewater treatment was carried out in this work by precipitation using calcium oxide to remove colloidal substances and heavy metals. Most pollutants are of organic origin and their removal will be carried in this work out using advanced oxidation processes using ozone, and ozone in combination with ultrasound to achieve water quality that complies with the law. The purification process will be optimized with respect to, method, time and amount of oxidizing agent applied. The degree of pollution of water by organic compounds will be determined on the basis of measurements of HPK, BOD and the concentration of heavy metals (lead, ferrum, chromium, copper, zinc, aluminum).
AB  - Usled razvoja industrije i rastom populacije tokom poslednjih godina javljaju se problemi u vezi sa otpadnim vodama iz proizvodnje koje je neophodno rešavati na ekološki i ekonomičan način. Sve otpadne vode iz postrojenja bez obzira kako su nastale sadrže štetne materije koje mogu da imaju i određen stepen toksičnih primesa, moraju se prečistiti ako njihov kvalitet ne odgovara zakonskim okvirima. Svrha tretmana otpadnih voda je uklanjanje štetnih materija čime se postiže smanjnje stepena njene zagađenosti, a istovremeno se ostvaruje i određen ekonomski i ekološki efekat, stoga je u ovom radu izvršeno prečišćavanje otpadne vode postupkom taloženja upotrebom kalcijum-oksida u cilju uklanjanja koloidnih materija i teških metala. Većina zagađujućih materija su organskog porekla i njihovo ukljanjanje vršiće se primenom naprednih oksidacionih procesa korišćenjem ozona i ozona u kombinaciji sa ultrazvukom u cilju postizanja kvaliteta vode koji odgovara zakonskoj regulativi. Proces prečišćavanja će se optimizovati u odnosu na tehnološki postupak, koncentraciju, vreme tretmana i količinu primenjenog oksidacionog sredstva. Stepen zagađenosti vode organskim jedinjenjima će se određivati na osnovu merenja HPK, BPK i koncentracije teških metala (olovo, gvožđe, hrom, bakar, cink, aluminijum).
PB  - Beograd : Beogradska politehnika
C3  - Zbornik radova - Peti naučno-stručni skup politehnika
T1  - Purification of waste water using ozonization
T1  - Prečišćavanje otpadnih voda primenom ozonizacije
EP  - 147
SP  - 142
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4171
ER  - 

@conference{
author = "Kovačina, Jovanka N. and Milošević, Milena D. and Božić, Aleksandra R. and Jovanović, Aleksandar and Marinković, Aleksandar and Onjia, Antonije and Povrenović, Dragan",
year = "2019",
abstract = "Due to the development of industry and population growth during the in recent years, there are problems with wastewater from production that needs to be addressed in an environmentally and economical way. All wastewaters from industry, no matter how they are created, contain harmful substances that may have some degree of toxicity, must be treated if their quality does not meet the legal requirements. The purpose of wastewater treatment is to remove harmful substances, thereby reducing its pollution level, and at the same time, it also has a certain economic and environmental effect. Therefore, wastewater treatment was carried out in this work by precipitation using calcium oxide to remove colloidal substances and heavy metals. Most pollutants are of organic origin and their removal will be carried in this work out using advanced oxidation processes using ozone, and ozone in combination with ultrasound to achieve water quality that complies with the law. The purification process will be optimized with respect to, method, time and amount of oxidizing agent applied. The degree of pollution of water by organic compounds will be determined on the basis of measurements of HPK, BOD and the concentration of heavy metals (lead, ferrum, chromium, copper, zinc, aluminum)., Usled razvoja industrije i rastom populacije tokom poslednjih godina javljaju se problemi u vezi sa otpadnim vodama iz proizvodnje koje je neophodno rešavati na ekološki i ekonomičan način. Sve otpadne vode iz postrojenja bez obzira kako su nastale sadrže štetne materije koje mogu da imaju i određen stepen toksičnih primesa, moraju se prečistiti ako njihov kvalitet ne odgovara zakonskim okvirima. Svrha tretmana otpadnih voda je uklanjanje štetnih materija čime se postiže smanjnje stepena njene zagađenosti, a istovremeno se ostvaruje i određen ekonomski i ekološki efekat, stoga je u ovom radu izvršeno prečišćavanje otpadne vode postupkom taloženja upotrebom kalcijum-oksida u cilju uklanjanja koloidnih materija i teških metala. Većina zagađujućih materija su organskog porekla i njihovo ukljanjanje vršiće se primenom naprednih oksidacionih procesa korišćenjem ozona i ozona u kombinaciji sa ultrazvukom u cilju postizanja kvaliteta vode koji odgovara zakonskoj regulativi. Proces prečišćavanja će se optimizovati u odnosu na tehnološki postupak, koncentraciju, vreme tretmana i količinu primenjenog oksidacionog sredstva. Stepen zagađenosti vode organskim jedinjenjima će se određivati na osnovu merenja HPK, BPK i koncentracije teških metala (olovo, gvožđe, hrom, bakar, cink, aluminijum).",
publisher = "Beograd : Beogradska politehnika",
journal = "Zbornik radova - Peti naučno-stručni skup politehnika",
title = "Purification of waste water using ozonization, Prečišćavanje otpadnih voda primenom ozonizacije",
pages = "147-142",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4171"
}

Kovačina, J. N., Milošević, M. D., Božić, A. R., Jovanović, A., Marinković, A., Onjia, A.,& Povrenović, D.. (2019). Purification of waste water using ozonization. in Zbornik radova - Peti naučno-stručni skup politehnika
Beograd : Beogradska politehnika., 142-147.
https://hdl.handle.net/21.15107/rcub_technorep_4171

Kovačina JN, Milošević MD, Božić AR, Jovanović A, Marinković A, Onjia A, Povrenović D. Purification of waste water using ozonization. in Zbornik radova - Peti naučno-stručni skup politehnika. 2019;:142-147.
https://hdl.handle.net/21.15107/rcub_technorep_4171 .

Kovačina, Jovanka N., Milošević, Milena D., Božić, Aleksandra R., Jovanović, Aleksandar, Marinković, Aleksandar, Onjia, Antonije, Povrenović, Dragan, "Purification of waste water using ozonization" in Zbornik radova - Peti naučno-stručni skup politehnika (2019):142-147,
https://hdl.handle.net/21.15107/rcub_technorep_4171 .

TY  - JOUR
AU  - Assaleh, Mohamed H.
AU  - Božić, Aleksandra R.
AU  - Bjelogrlić, Snežana K.
AU  - Milošević, Milena D.
AU  - Simić, Milena R.
AU  - Marinković, Aleksandar
AU  - Cvijetić, Ilija
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4147
AB  - Thiocarbohydrazones (TCHs) and structurally related molecules are versatile organic compounds which exert antioxidant, anticancer, and other beneficial health effects. The combination of UV/Vis, NMR spectroscopy, and quantum chemical calculations was used to rationalize the experimentally observed increase in the radical scavenging activity upon the addition of water in DMSO solution of TCHs. Mono- and bis(salicylaldehyde) TCHs (compounds 1 and 2) undergo water-induced E-to-Z isomerization which is followed by disruption of intramolecular hydrogen bond, ground state destabilization, and 11 kcal/mol decrease in the bond dissociation enthalpy (BDE). Electron spin delocalization is more pronounced in Z-isomers of 1 and 2. On the other hand, 2-acetylpyridine TCHs (compounds 3 and 4) undergo thione-to-thiol tautomerism which also decreases the BDE and facilitates the hydrogen atom transfer to 2,2-diphenyl-1-picrylhydrazyl radical (DPPH.). The appearance of thiolic -SH group as another reactive site toward free radicals improves the antioxidant activity of 3 and 4. The spin density of 3- and 4-thiol radicals is delocalized over the entire thiocarbohydrazide moiety compared to more localized spin of thione radicals. Additional stabilization of thiol radicals corroborates with the increased antioxidant activity. This study provides the new insights on the solution structure of TCHs, and also highlights the importance of solution structure determination when studying the structure-antioxidant relationships of isomerizable compounds.
PB  - Springer/Plenum Publishers, New York
T2  - Structural Chemistry
T1  - Water-induced isomerism of salicylaldehyde and 2-acetylpyridine mono- and bis-(thiocarbohydrazones) improves the antioxidant activity: spectroscopic and DFT study
EP  - 2457
IS  - 6
SP  - 2447
VL  - 30
DO  - 10.1007/s11224-019-01371-4
ER  - 

@article{
author = "Assaleh, Mohamed H. and Božić, Aleksandra R. and Bjelogrlić, Snežana K. and Milošević, Milena D. and Simić, Milena R. and Marinković, Aleksandar and Cvijetić, Ilija",
year = "2019",
abstract = "Thiocarbohydrazones (TCHs) and structurally related molecules are versatile organic compounds which exert antioxidant, anticancer, and other beneficial health effects. The combination of UV/Vis, NMR spectroscopy, and quantum chemical calculations was used to rationalize the experimentally observed increase in the radical scavenging activity upon the addition of water in DMSO solution of TCHs. Mono- and bis(salicylaldehyde) TCHs (compounds 1 and 2) undergo water-induced E-to-Z isomerization which is followed by disruption of intramolecular hydrogen bond, ground state destabilization, and 11 kcal/mol decrease in the bond dissociation enthalpy (BDE). Electron spin delocalization is more pronounced in Z-isomers of 1 and 2. On the other hand, 2-acetylpyridine TCHs (compounds 3 and 4) undergo thione-to-thiol tautomerism which also decreases the BDE and facilitates the hydrogen atom transfer to 2,2-diphenyl-1-picrylhydrazyl radical (DPPH.). The appearance of thiolic -SH group as another reactive site toward free radicals improves the antioxidant activity of 3 and 4. The spin density of 3- and 4-thiol radicals is delocalized over the entire thiocarbohydrazide moiety compared to more localized spin of thione radicals. Additional stabilization of thiol radicals corroborates with the increased antioxidant activity. This study provides the new insights on the solution structure of TCHs, and also highlights the importance of solution structure determination when studying the structure-antioxidant relationships of isomerizable compounds.",
publisher = "Springer/Plenum Publishers, New York",
journal = "Structural Chemistry",
title = "Water-induced isomerism of salicylaldehyde and 2-acetylpyridine mono- and bis-(thiocarbohydrazones) improves the antioxidant activity: spectroscopic and DFT study",
pages = "2457-2447",
number = "6",
volume = "30",
doi = "10.1007/s11224-019-01371-4"
}

Assaleh, M. H., Božić, A. R., Bjelogrlić, S. K., Milošević, M. D., Simić, M. R., Marinković, A.,& Cvijetić, I.. (2019). Water-induced isomerism of salicylaldehyde and 2-acetylpyridine mono- and bis-(thiocarbohydrazones) improves the antioxidant activity: spectroscopic and DFT study. in Structural Chemistry
Springer/Plenum Publishers, New York., 30(6), 2447-2457.
https://doi.org/10.1007/s11224-019-01371-4

Assaleh MH, Božić AR, Bjelogrlić SK, Milošević MD, Simić MR, Marinković A, Cvijetić I. Water-induced isomerism of salicylaldehyde and 2-acetylpyridine mono- and bis-(thiocarbohydrazones) improves the antioxidant activity: spectroscopic and DFT study. in Structural Chemistry. 2019;30(6):2447-2457.
doi:10.1007/s11224-019-01371-4 .

Assaleh, Mohamed H., Božić, Aleksandra R., Bjelogrlić, Snežana K., Milošević, Milena D., Simić, Milena R., Marinković, Aleksandar, Cvijetić, Ilija, "Water-induced isomerism of salicylaldehyde and 2-acetylpyridine mono- and bis-(thiocarbohydrazones) improves the antioxidant activity: spectroscopic and DFT study" in Structural Chemistry, 30, no. 6 (2019):2447-2457,
https://doi.org/10.1007/s11224-019-01371-4 . .

TY  - CONF
AU  - Brkić, Dominik
AU  - Božić, Aleksandra
AU  - Prlainović, Nevena
AU  - Petrović, Predrag
AU  - Drmanić, Saša
AU  - Nikolić, Jasmina
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7314
AB  - Derivati izatina su se u novije vreme pokazali kao jedinjenja korisna u farmakologiji, jer
ispoljavaju širok spektar dejstava kao sto su antivirusna, antitumorna, antibakterijska,
antituberkulozna, antigljivična, antikonvulzivna. Reč je o jedinjenjima koja nastaju reakcijom
izatina i primarnih amina i spadaju u grupu Šifovih (Schiff) baza. Kao deo serije istraživanja
koje se bavi derivatima izatina, sintetisani su i njihovi kompleksi sa metalima. Ispitana je
njihova antimikrobna aktivnost, pomoću bujon - mikrodilucione metode, na kojoj se može
zasnovati i mogućnost njihove primene.
AB  - The isatin derivatives have recently shown the potential to be used in pharmaclogy because
of their activities such as antiviral, anticancer, antibacterial, antituberculosis, antifungal and
anticonvulsive. These compounds belong to the group of Schiff bases and they are
synthesized by the reaction of isatin and primary amines. As a part of the series of
investigation that deals with the isatin derivatives, their complexes with metals were
synthesized. Their antimicrobial activity was examined using the broth micro-dilution
method, which could provide the ground for the application of these compounds.
PB  - Beograd : Srpsko hemijsko društvo = Serbian Chemical Society
C3  - Kratki izvodi radova = Book of Abstracts / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018 = 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018
T1  - Kompleksi derivata izatina i njihovo antimikrobno dejstvo
T1  - The complexes of isatin derivatives and their antimicrobial acitivity
SP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7314
ER  - 

@conference{
author = "Brkić, Dominik and Božić, Aleksandra and Prlainović, Nevena and Petrović, Predrag and Drmanić, Saša and Nikolić, Jasmina",
year = "2018",
abstract = "Derivati izatina su se u novije vreme pokazali kao jedinjenja korisna u farmakologiji, jer
ispoljavaju širok spektar dejstava kao sto su antivirusna, antitumorna, antibakterijska,
antituberkulozna, antigljivična, antikonvulzivna. Reč je o jedinjenjima koja nastaju reakcijom
izatina i primarnih amina i spadaju u grupu Šifovih (Schiff) baza. Kao deo serije istraživanja
koje se bavi derivatima izatina, sintetisani su i njihovi kompleksi sa metalima. Ispitana je
njihova antimikrobna aktivnost, pomoću bujon - mikrodilucione metode, na kojoj se može
zasnovati i mogućnost njihove primene., The isatin derivatives have recently shown the potential to be used in pharmaclogy because
of their activities such as antiviral, anticancer, antibacterial, antituberculosis, antifungal and
anticonvulsive. These compounds belong to the group of Schiff bases and they are
synthesized by the reaction of isatin and primary amines. As a part of the series of
investigation that deals with the isatin derivatives, their complexes with metals were
synthesized. Their antimicrobial activity was examined using the broth micro-dilution
method, which could provide the ground for the application of these compounds.",
publisher = "Beograd : Srpsko hemijsko društvo = Serbian Chemical Society",
journal = "Kratki izvodi radova = Book of Abstracts / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018 = 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018",
title = "Kompleksi derivata izatina i njihovo antimikrobno dejstvo, The complexes of isatin derivatives and their antimicrobial acitivity",
pages = "67",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7314"
}

Brkić, D., Božić, A., Prlainović, N., Petrović, P., Drmanić, S.,& Nikolić, J.. (2018). Kompleksi derivata izatina i njihovo antimikrobno dejstvo. in Kratki izvodi radova = Book of Abstracts / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018 = 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018
Beograd : Srpsko hemijsko društvo = Serbian Chemical Society., 67.
https://hdl.handle.net/21.15107/rcub_technorep_7314

Brkić D, Božić A, Prlainović N, Petrović P, Drmanić S, Nikolić J. Kompleksi derivata izatina i njihovo antimikrobno dejstvo. in Kratki izvodi radova = Book of Abstracts / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018 = 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018. 2018;:67.
https://hdl.handle.net/21.15107/rcub_technorep_7314 .

Brkić, Dominik, Božić, Aleksandra, Prlainović, Nevena, Petrović, Predrag, Drmanić, Saša, Nikolić, Jasmina, "Kompleksi derivata izatina i njihovo antimikrobno dejstvo" in Kratki izvodi radova = Book of Abstracts / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018 = 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018 (2018):67,
https://hdl.handle.net/21.15107/rcub_technorep_7314 .

TY  - JOUR
AU  - Božić, Aleksandra R.
AU  - Bjelogrlić, Snežana K.
AU  - Novaković, Irena T.
AU  - Filipović, Nenad R.
AU  - Petrović, Predrag
AU  - Marinković, Aleksandar
AU  - Todorović, Tamara
AU  - Cvijetić, Ilija
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3957
AB  - Due to the rise of microbial strains resistant to conventional therapies, there is an urgent need for finding the new antimicrobial chemotypes. Heterocyclic compounds such as thiocarbohydrazones (TCHs) are able to interact with many metalloenzymes essential for microbes, while sulfur atom increases lipophilicity which is generally positively correlated with potency. In this paper, we report antibacterial and antifungal activity of twenty-two TCHs toward eight bacterial and three fungal strains. Furthermore, three alignment independent 3D QSAR models based on descriptors derived from molecular interaction fields (MIFs) are developed in order to rationalize structure-activity relationships for activities of TCHs toward S. aureus, P. aeruginosa and C. albicans. Several structural fragments important for biological activity are recognized in each model, and structural modifications which could lead to increased potency are suggested. Designed structures will be synthesized accordingly and tested toward the same microbial strains in order to obtain more potent derivatives.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Chemistryselect
T1  - Antimicrobial Activity of Thiocarbohydrazones: Experimental Studies and Alignment-Independent 3D QSAR Models
EP  - 2221
IS  - 7
SP  - 2215
VL  - 3
DO  - 10.1002/slct.201702691
ER  - 

@article{
author = "Božić, Aleksandra R. and Bjelogrlić, Snežana K. and Novaković, Irena T. and Filipović, Nenad R. and Petrović, Predrag and Marinković, Aleksandar and Todorović, Tamara and Cvijetić, Ilija",
year = "2018",
abstract = "Due to the rise of microbial strains resistant to conventional therapies, there is an urgent need for finding the new antimicrobial chemotypes. Heterocyclic compounds such as thiocarbohydrazones (TCHs) are able to interact with many metalloenzymes essential for microbes, while sulfur atom increases lipophilicity which is generally positively correlated with potency. In this paper, we report antibacterial and antifungal activity of twenty-two TCHs toward eight bacterial and three fungal strains. Furthermore, three alignment independent 3D QSAR models based on descriptors derived from molecular interaction fields (MIFs) are developed in order to rationalize structure-activity relationships for activities of TCHs toward S. aureus, P. aeruginosa and C. albicans. Several structural fragments important for biological activity are recognized in each model, and structural modifications which could lead to increased potency are suggested. Designed structures will be synthesized accordingly and tested toward the same microbial strains in order to obtain more potent derivatives.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Chemistryselect",
title = "Antimicrobial Activity of Thiocarbohydrazones: Experimental Studies and Alignment-Independent 3D QSAR Models",
pages = "2221-2215",
number = "7",
volume = "3",
doi = "10.1002/slct.201702691"
}

Božić, A. R., Bjelogrlić, S. K., Novaković, I. T., Filipović, N. R., Petrović, P., Marinković, A., Todorović, T.,& Cvijetić, I.. (2018). Antimicrobial Activity of Thiocarbohydrazones: Experimental Studies and Alignment-Independent 3D QSAR Models. in Chemistryselect
Wiley-VCH Verlag Gmbh, Weinheim., 3(7), 2215-2221.
https://doi.org/10.1002/slct.201702691

Božić AR, Bjelogrlić SK, Novaković IT, Filipović NR, Petrović P, Marinković A, Todorović T, Cvijetić I. Antimicrobial Activity of Thiocarbohydrazones: Experimental Studies and Alignment-Independent 3D QSAR Models. in Chemistryselect. 2018;3(7):2215-2221.
doi:10.1002/slct.201702691 .

Božić, Aleksandra R., Bjelogrlić, Snežana K., Novaković, Irena T., Filipović, Nenad R., Petrović, Predrag, Marinković, Aleksandar, Todorović, Tamara, Cvijetić, Ilija, "Antimicrobial Activity of Thiocarbohydrazones: Experimental Studies and Alignment-Independent 3D QSAR Models" in Chemistryselect, 3, no. 7 (2018):2215-2221,
https://doi.org/10.1002/slct.201702691 . .

TY  - JOUR
AU  - Milošević, Milena D.
AU  - Prlainović, Nevena
AU  - Milčić, Miloš
AU  - Nikolić, Vesna
AU  - Božić, Aleksandra R.
AU  - Bigović, Miljan
AU  - Marinković, Aleksandar
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3843
AB  - 15 symmetric 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides were synthesized in this work. Their structures were characterized using IR, H-1 and C-13 NMR, and UV-Vis spectroscopy. DFT calculations indicated that s-trans/s-trans conformation prevail in all compounds. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear solvation-free energy relationships (LSER), i.e., Kamlet-Taft and Catalan models. A linear free energy relationship (LFER) in the form of single substituent parameter equations (SSP) was used to postulate quantitative structure-property relations of substituent effect on NMR data. TD-DFT results showed dependence of electronic transition on the substituent effects. The push-pull character of these compounds was analyzed by differences in C-13 chemical shift of the ethylenic double bond in 2- and 6-positions of cross-conjugated with pyridinum central ring. Also, the quotient of the occupations for the bonding pi and anti-bonding pi* orbitals of this bond was considered. Good correlations of the selected parameter between double bond lengths with pi*/pi and C-13 chemical shift differences of the bridging group proved them to be adequate descriptor of push-pull character. Synthesized compounds were screened for the antioxidant activity, using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical methods, and results demonstrated moderate antioxidant potential.
PB  - Springer, New York
T2  - Journal of the Iranian Chemical Society
T1  - Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides
EP  - 2501
IS  - 11
SP  - 2483
VL  - 15
DO  - 10.1007/s13738-018-1437-5
ER  - 

@article{
author = "Milošević, Milena D. and Prlainović, Nevena and Milčić, Miloš and Nikolić, Vesna and Božić, Aleksandra R. and Bigović, Miljan and Marinković, Aleksandar",
year = "2018",
abstract = "15 symmetric 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides were synthesized in this work. Their structures were characterized using IR, H-1 and C-13 NMR, and UV-Vis spectroscopy. DFT calculations indicated that s-trans/s-trans conformation prevail in all compounds. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear solvation-free energy relationships (LSER), i.e., Kamlet-Taft and Catalan models. A linear free energy relationship (LFER) in the form of single substituent parameter equations (SSP) was used to postulate quantitative structure-property relations of substituent effect on NMR data. TD-DFT results showed dependence of electronic transition on the substituent effects. The push-pull character of these compounds was analyzed by differences in C-13 chemical shift of the ethylenic double bond in 2- and 6-positions of cross-conjugated with pyridinum central ring. Also, the quotient of the occupations for the bonding pi and anti-bonding pi* orbitals of this bond was considered. Good correlations of the selected parameter between double bond lengths with pi*/pi and C-13 chemical shift differences of the bridging group proved them to be adequate descriptor of push-pull character. Synthesized compounds were screened for the antioxidant activity, using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical methods, and results demonstrated moderate antioxidant potential.",
publisher = "Springer, New York",
journal = "Journal of the Iranian Chemical Society",
title = "Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides",
pages = "2501-2483",
number = "11",
volume = "15",
doi = "10.1007/s13738-018-1437-5"
}

Milošević, M. D., Prlainović, N., Milčić, M., Nikolić, V., Božić, A. R., Bigović, M.,& Marinković, A.. (2018). Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides. in Journal of the Iranian Chemical Society
Springer, New York., 15(11), 2483-2501.
https://doi.org/10.1007/s13738-018-1437-5

Milošević MD, Prlainović N, Milčić M, Nikolić V, Božić AR, Bigović M, Marinković A. Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides. in Journal of the Iranian Chemical Society. 2018;15(11):2483-2501.
doi:10.1007/s13738-018-1437-5 .

Milošević, Milena D., Prlainović, Nevena, Milčić, Miloš, Nikolić, Vesna, Božić, Aleksandra R., Bigović, Miljan, Marinković, Aleksandar, "Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides" in Journal of the Iranian Chemical Society, 15, no. 11 (2018):2483-2501,
https://doi.org/10.1007/s13738-018-1437-5 . .

TY  - JOUR
AU  - Brkić, Dominik R.
AU  - Božić, Aleksandra R.
AU  - Marinković, Aleksandar
AU  - Milčić, Miloš
AU  - Prlainović, Nevena
AU  - Assaleh, Fathi H.
AU  - Cvijetić, Ilija
AU  - Nikolić, Jasmina
AU  - Drmanić, Saša
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3971
AB  - The ratios of E/Z isomers of sixteen synthesized 1,3-dihydro-3-(substituted phenylimino)-2H-indol-2-one were studied using experimental and theoretical methodology. Linear solvation energy relationships (LSER) rationalized solvent influence of the solvent-solute interactions on the UV-Vis absorption maxima shifts (v(max)) of both geometrical isomers using the Kamlet-Taft equation. Linear free energy relationships (LEER) in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on pK(a), NMR chemical shifts and v(max) values. Electron charge density was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. The substituent and solvent effect on intramolecular charge transfer (ICT) were interpreted with the aid of time-dependent density functional (TD-DFT) method. Additionally, the results of TD-DFT calculations quantified the efficiency of ICT from the calculated charge-transfer distance (D-CT) and amount of transferred charge (Q(CT)). The antimicrobial activity was evaluated using broth microdilution method. 3D QSAR modeling was used to demonstrate the influence of substituents effect as well as molecule geometry on antimicrobial activity.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base
EP  - 30
SP  - 16
VL  - 196
DO  - 10.1016/j.saa.2018.01.080
ER  - 

@article{
author = "Brkić, Dominik R. and Božić, Aleksandra R. and Marinković, Aleksandar and Milčić, Miloš and Prlainović, Nevena and Assaleh, Fathi H. and Cvijetić, Ilija and Nikolić, Jasmina and Drmanić, Saša",
year = "2018",
abstract = "The ratios of E/Z isomers of sixteen synthesized 1,3-dihydro-3-(substituted phenylimino)-2H-indol-2-one were studied using experimental and theoretical methodology. Linear solvation energy relationships (LSER) rationalized solvent influence of the solvent-solute interactions on the UV-Vis absorption maxima shifts (v(max)) of both geometrical isomers using the Kamlet-Taft equation. Linear free energy relationships (LEER) in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on pK(a), NMR chemical shifts and v(max) values. Electron charge density was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. The substituent and solvent effect on intramolecular charge transfer (ICT) were interpreted with the aid of time-dependent density functional (TD-DFT) method. Additionally, the results of TD-DFT calculations quantified the efficiency of ICT from the calculated charge-transfer distance (D-CT) and amount of transferred charge (Q(CT)). The antimicrobial activity was evaluated using broth microdilution method. 3D QSAR modeling was used to demonstrate the influence of substituents effect as well as molecule geometry on antimicrobial activity.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base",
pages = "30-16",
volume = "196",
doi = "10.1016/j.saa.2018.01.080"
}

Brkić, D. R., Božić, A. R., Marinković, A., Milčić, M., Prlainović, N., Assaleh, F. H., Cvijetić, I., Nikolić, J.,& Drmanić, S.. (2018). Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 196, 16-30.
https://doi.org/10.1016/j.saa.2018.01.080

Brkić DR, Božić AR, Marinković A, Milčić M, Prlainović N, Assaleh FH, Cvijetić I, Nikolić J, Drmanić S. Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2018;196:16-30.
doi:10.1016/j.saa.2018.01.080 .

Brkić, Dominik R., Božić, Aleksandra R., Marinković, Aleksandar, Milčić, Miloš, Prlainović, Nevena, Assaleh, Fathi H., Cvijetić, Ilija, Nikolić, Jasmina, Drmanić, Saša, "Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 196 (2018):16-30,
https://doi.org/10.1016/j.saa.2018.01.080 . .

TY  - JOUR
AU  - Božić, Aleksandra R.
AU  - Filipović, Nenad R.
AU  - Novaković, Irena
AU  - Bjelogrlić, Snežana K.
AU  - Nikolić, Jasmina
AU  - Drmanić, Saša
AU  - Marinković, Aleksandar
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3563
AB  - Fourteen mono- and bis-carbohydrazone ligands have been synthesized and characterized. Antioxidant activity of the substances was investigated together with possible (E)/(Z) isomerization, and explained on the most active antioxidant compound 4 in various dimethyl sulphoxide-water mixtures. The addition of water to the system was involved in the formation of hydrated molecules which was confirmed in NMR after the addition of D2O. The ligands were tested in vitro against Gram-positive and Gram-negative bacteria and fungi, and their activity was discussed in relation to the structure of investigated carbohydrazone.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Synthesis, antioxidant and antimicrobial activity of carbohydrazones
EP  - 508
IS  - 5
SP  - 495
VL  - 82
DO  - 10.2298/JSC161220045B
ER  - 

@article{
author = "Božić, Aleksandra R. and Filipović, Nenad R. and Novaković, Irena and Bjelogrlić, Snežana K. and Nikolić, Jasmina and Drmanić, Saša and Marinković, Aleksandar",
year = "2017",
abstract = "Fourteen mono- and bis-carbohydrazone ligands have been synthesized and characterized. Antioxidant activity of the substances was investigated together with possible (E)/(Z) isomerization, and explained on the most active antioxidant compound 4 in various dimethyl sulphoxide-water mixtures. The addition of water to the system was involved in the formation of hydrated molecules which was confirmed in NMR after the addition of D2O. The ligands were tested in vitro against Gram-positive and Gram-negative bacteria and fungi, and their activity was discussed in relation to the structure of investigated carbohydrazone.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Synthesis, antioxidant and antimicrobial activity of carbohydrazones",
pages = "508-495",
number = "5",
volume = "82",
doi = "10.2298/JSC161220045B"
}

Božić, A. R., Filipović, N. R., Novaković, I., Bjelogrlić, S. K., Nikolić, J., Drmanić, S.,& Marinković, A.. (2017). Synthesis, antioxidant and antimicrobial activity of carbohydrazones. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 82(5), 495-508.
https://doi.org/10.2298/JSC161220045B

Božić AR, Filipović NR, Novaković I, Bjelogrlić SK, Nikolić J, Drmanić S, Marinković A. Synthesis, antioxidant and antimicrobial activity of carbohydrazones. in Journal of the Serbian Chemical Society. 2017;82(5):495-508.
doi:10.2298/JSC161220045B .

Božić, Aleksandra R., Filipović, Nenad R., Novaković, Irena, Bjelogrlić, Snežana K., Nikolić, Jasmina, Drmanić, Saša, Marinković, Aleksandar, "Synthesis, antioxidant and antimicrobial activity of carbohydrazones" in Journal of the Serbian Chemical Society, 82, no. 5 (2017):495-508,
https://doi.org/10.2298/JSC161220045B . .

TY  - JOUR
AU  - Tasić, Ana
AU  - Rusmirović, Jelena
AU  - Nikolić, Jovana
AU  - Božić, Aleksandra R.
AU  - Pavlović, Vladimir B.
AU  - Marinković, Aleksandar
AU  - Uskoković, Petar
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3743
AB  - Production of high-performance nanocomposite materials obtained from unsaturated polyester resin, based on products of the waste poly(ethylene terephthalate) recycling, and modified multi-walled carbon nanotubes is presented. Di-hydroxy functional glycolysates, synthesized by catalytic depolymerization of poly(ethylene terephthalate) with propylene glycol, were used for the unsaturated polyester resin synthesis. The structure of the obtained glycolysis product and unsaturated polyester resin were characterized by using FTIR and NMR spectroscopy, and by acid, iodine, and hydroxyl value. Nanofillers were prepared by direct and two-step amidation of oxidized multi-walled carbon nanotubes. Direct amidation with diallylamine produced multi-walled carbon nanotube-diallylamine reactive nanofiller. Two-step modification with diamines: hexamethylenediamine and p-phenylenediamine gave multi-walled carbon nanotubehexamethylenediamine and multi-walled carbon nanotube-p-phenylenediamine nanofiller, respectively, whose amidation with methyl ester of linseed oil fatty acids gave multi-walled carbon nanotube-hexamethylenediamine/methyl ester of linseed oil fatty acid and multi-walled carbon nanotube-p-phenylenediamine/methyl ester of linseed oil fatty acid nanofiller, respectively. Influences of vinyl functionalities on mechanical properties of nanocomposite were analyzed from tensile strength (sigma(b)), elongation (epsilon(b)) and Young's modulus (E) determination. An increase of 97.4, 119 and 139% of sigma(b) was obtained for nanocomposites with addition of 0.25 wt.% of diallylamine, p-phenylenediamine/methyl ester of linseed oil fatty acid and hexamethylenediamine/methyl ester of linseed oil fatty acid multi-walled carbon nanotubes, respectively. Short techno-economic analysis, performed on the basis of fixed and variable unsaturated polyester resin production costs, showed satisfactory potential profit, which could be realized by the implementation of the presented technology.
PB  - Sage Publications Ltd, London
T2  - Journal of Composite Materials
T1  - Effect of the vinyl modification of multi-walled carbon nanotubes on the performances of waste poly(ethylene terephthalate)-based nanocomposites
EP  - 505
IS  - 4
SP  - 491
VL  - 51
DO  - 10.1177/0021998316648757
ER  - 

@article{
author = "Tasić, Ana and Rusmirović, Jelena and Nikolić, Jovana and Božić, Aleksandra R. and Pavlović, Vladimir B. and Marinković, Aleksandar and Uskoković, Petar",
year = "2017",
abstract = "Production of high-performance nanocomposite materials obtained from unsaturated polyester resin, based on products of the waste poly(ethylene terephthalate) recycling, and modified multi-walled carbon nanotubes is presented. Di-hydroxy functional glycolysates, synthesized by catalytic depolymerization of poly(ethylene terephthalate) with propylene glycol, were used for the unsaturated polyester resin synthesis. The structure of the obtained glycolysis product and unsaturated polyester resin were characterized by using FTIR and NMR spectroscopy, and by acid, iodine, and hydroxyl value. Nanofillers were prepared by direct and two-step amidation of oxidized multi-walled carbon nanotubes. Direct amidation with diallylamine produced multi-walled carbon nanotube-diallylamine reactive nanofiller. Two-step modification with diamines: hexamethylenediamine and p-phenylenediamine gave multi-walled carbon nanotubehexamethylenediamine and multi-walled carbon nanotube-p-phenylenediamine nanofiller, respectively, whose amidation with methyl ester of linseed oil fatty acids gave multi-walled carbon nanotube-hexamethylenediamine/methyl ester of linseed oil fatty acid and multi-walled carbon nanotube-p-phenylenediamine/methyl ester of linseed oil fatty acid nanofiller, respectively. Influences of vinyl functionalities on mechanical properties of nanocomposite were analyzed from tensile strength (sigma(b)), elongation (epsilon(b)) and Young's modulus (E) determination. An increase of 97.4, 119 and 139% of sigma(b) was obtained for nanocomposites with addition of 0.25 wt.% of diallylamine, p-phenylenediamine/methyl ester of linseed oil fatty acid and hexamethylenediamine/methyl ester of linseed oil fatty acid multi-walled carbon nanotubes, respectively. Short techno-economic analysis, performed on the basis of fixed and variable unsaturated polyester resin production costs, showed satisfactory potential profit, which could be realized by the implementation of the presented technology.",
publisher = "Sage Publications Ltd, London",
journal = "Journal of Composite Materials",
title = "Effect of the vinyl modification of multi-walled carbon nanotubes on the performances of waste poly(ethylene terephthalate)-based nanocomposites",
pages = "505-491",
number = "4",
volume = "51",
doi = "10.1177/0021998316648757"
}

Tasić, A., Rusmirović, J., Nikolić, J., Božić, A. R., Pavlović, V. B., Marinković, A.,& Uskoković, P.. (2017). Effect of the vinyl modification of multi-walled carbon nanotubes on the performances of waste poly(ethylene terephthalate)-based nanocomposites. in Journal of Composite Materials
Sage Publications Ltd, London., 51(4), 491-505.
https://doi.org/10.1177/0021998316648757

Tasić A, Rusmirović J, Nikolić J, Božić AR, Pavlović VB, Marinković A, Uskoković P. Effect of the vinyl modification of multi-walled carbon nanotubes on the performances of waste poly(ethylene terephthalate)-based nanocomposites. in Journal of Composite Materials. 2017;51(4):491-505.
doi:10.1177/0021998316648757 .

Tasić, Ana, Rusmirović, Jelena, Nikolić, Jovana, Božić, Aleksandra R., Pavlović, Vladimir B., Marinković, Aleksandar, Uskoković, Petar, "Effect of the vinyl modification of multi-walled carbon nanotubes on the performances of waste poly(ethylene terephthalate)-based nanocomposites" in Journal of Composite Materials, 51, no. 4 (2017):491-505,
https://doi.org/10.1177/0021998316648757 . .

TY  - JOUR
AU  - Brkić, Dominik R.
AU  - Božić, Aleksandra R.
AU  - Nikolić, Vesna D.
AU  - Marinković, Aleksandar
AU  - Elshaflu, Hana
AU  - Nikolić, Jasmina
AU  - Drmanić, Saša
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3293
AB  - The derivatives of isatin (1H-indole-2,3-dione) have already been reported to show a variety of biological activities. However, there have hitherto been no reports on the solvatochromic effects of isatin derivatives, and it could be of interest to study and relate them to their electronic structures, as a part of the characterisation of these compounds. Linear solvation energy relationships (LSER) were used to analyze the influence of the solvent on the shifts of the UV absorption maxima of investigated isatin derivatives, i.e., isatin based Schiff bases, using Kamlet-Taft model. Linear free energy relationships (LFER) were applied to the substituent-induced NMR chemical shifts (SCS) using a single substituent parameter (SSP). The obtained correlations together with theoretical calculations gave insight into the influence of the molecular conformation on the transmission of substituent effects, as well as on solute-solvent interactions. The molecular electrostatic potential (MEP) surface map was plotted over the optimized geometry of the molecules in order to visualize the electron density distribution and explain the origin of the solvent- solute interactions.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Solvatochromism of isatin based Schiff bases: An LSER and LFER study
EP  - 997
IS  - 9
SP  - 979
VL  - 81
DO  - 10.2298/JSC160119049B
ER  - 

@article{
author = "Brkić, Dominik R. and Božić, Aleksandra R. and Nikolić, Vesna D. and Marinković, Aleksandar and Elshaflu, Hana and Nikolić, Jasmina and Drmanić, Saša",
year = "2016",
abstract = "The derivatives of isatin (1H-indole-2,3-dione) have already been reported to show a variety of biological activities. However, there have hitherto been no reports on the solvatochromic effects of isatin derivatives, and it could be of interest to study and relate them to their electronic structures, as a part of the characterisation of these compounds. Linear solvation energy relationships (LSER) were used to analyze the influence of the solvent on the shifts of the UV absorption maxima of investigated isatin derivatives, i.e., isatin based Schiff bases, using Kamlet-Taft model. Linear free energy relationships (LFER) were applied to the substituent-induced NMR chemical shifts (SCS) using a single substituent parameter (SSP). The obtained correlations together with theoretical calculations gave insight into the influence of the molecular conformation on the transmission of substituent effects, as well as on solute-solvent interactions. The molecular electrostatic potential (MEP) surface map was plotted over the optimized geometry of the molecules in order to visualize the electron density distribution and explain the origin of the solvent- solute interactions.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Solvatochromism of isatin based Schiff bases: An LSER and LFER study",
pages = "997-979",
number = "9",
volume = "81",
doi = "10.2298/JSC160119049B"
}

Brkić, D. R., Božić, A. R., Nikolić, V. D., Marinković, A., Elshaflu, H., Nikolić, J.,& Drmanić, S.. (2016). Solvatochromism of isatin based Schiff bases: An LSER and LFER study. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 81(9), 979-997.
https://doi.org/10.2298/JSC160119049B

Brkić DR, Božić AR, Nikolić VD, Marinković A, Elshaflu H, Nikolić J, Drmanić S. Solvatochromism of isatin based Schiff bases: An LSER and LFER study. in Journal of the Serbian Chemical Society. 2016;81(9):979-997.
doi:10.2298/JSC160119049B .

Brkić, Dominik R., Božić, Aleksandra R., Nikolić, Vesna D., Marinković, Aleksandar, Elshaflu, Hana, Nikolić, Jasmina, Drmanić, Saša, "Solvatochromism of isatin based Schiff bases: An LSER and LFER study" in Journal of the Serbian Chemical Society, 81, no. 9 (2016):979-997,
https://doi.org/10.2298/JSC160119049B . .

TY  - JOUR
AU  - Rusmirović, Jelena
AU  - Božić, Aleksandra R.
AU  - Stamenović, Marina
AU  - Spasojević, Pavle
AU  - Rančić, Milica
AU  - Stojiljković, Ivana
AU  - Marinković, Aleksandar
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3201
AB  - Synthesis of high-performance alkyd resins (ARs) based on waste poly(ethylene terephthalate) (PET) glycolyzates is presented. PET glycolyzates were synthesized by catalytic depolymerization with trimethylolpropane (TMP) and trimethylolethane (TME) and used as replacement of polyhydroxylic component during the ARs synthesis. The obtained glycolyzates and produced ARs were analyzed using FTIR, 1H and 13C NMR spectroscopy and acid, iodine, and hydroxyl value were determined. Rheological properties of the synthesized ARs, as well as, thickness, adhesion, hardness and the gloss values were determined. All synthesized ARs show good adhesion and hardness and the gloss values are greater than 95%. The influence of the addition of vinyl modified nanosilica Aerosil® R380, functionalized with 3-(trimethoxysilyl)propyl methacrylate (TMSPM) and tris(2-methoxyethoxy)(vinyl)silane (TMEVS), on the mechanical and anticorrosive characteristics of the prepared nanocomposite coatings, based on ARs, was investigated.
AB  - U ovom radu prikazana je sinteza alkidnih smola visokih performansi baziranih na otpadnim poli(etilentereftalat) (PET) glikolizatima. PET glikolizati su sintetisani katalitičkom depolimerizacijom sa trimetilolpropanom (TMP) i trimetiloletanom (TME) koji su korišćeni za zamenu polihidroksilne komponente u toku sinteze alkidnih smola. Dobijeni glikolizati i alkidne smole u velikom prinosu su okarakterisane FTIR i 1HNMR spektroskopijom, kiselinskim, jodnim i hidroksilnim brojem. Određena su reološka svojstva sintetisanih alkidnih smola kao što su debljina, athezija, tvrdoća i sjaj i sve sintetisane alkidne smole su pokazale veliku adeziju i tvrdoću i sjaj veći od 98%. Ispitivan je uticaj dodatka modifikovanih silika Aerosil® R380 nanočestica na mehaničke I antikorozivne karakteristike dobijenih nanokompozitnih premaza na bazi alkidnih smola.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Alkyd nanocomposite coatings based on waste pet glicolyzates and modified silica nanoparticles
T1  - Alkid nanokompozitni premazi bazirani na otpadnim pet glikolizatima modifikovani nanočesticama silike
EP  - 54
IS  - 1
SP  - 47
VL  - 57
DO  - 10.5937/ZasMat1601047R
ER  - 

@article{
author = "Rusmirović, Jelena and Božić, Aleksandra R. and Stamenović, Marina and Spasojević, Pavle and Rančić, Milica and Stojiljković, Ivana and Marinković, Aleksandar",
year = "2016",
abstract = "Synthesis of high-performance alkyd resins (ARs) based on waste poly(ethylene terephthalate) (PET) glycolyzates is presented. PET glycolyzates were synthesized by catalytic depolymerization with trimethylolpropane (TMP) and trimethylolethane (TME) and used as replacement of polyhydroxylic component during the ARs synthesis. The obtained glycolyzates and produced ARs were analyzed using FTIR, 1H and 13C NMR spectroscopy and acid, iodine, and hydroxyl value were determined. Rheological properties of the synthesized ARs, as well as, thickness, adhesion, hardness and the gloss values were determined. All synthesized ARs show good adhesion and hardness and the gloss values are greater than 95%. The influence of the addition of vinyl modified nanosilica Aerosil® R380, functionalized with 3-(trimethoxysilyl)propyl methacrylate (TMSPM) and tris(2-methoxyethoxy)(vinyl)silane (TMEVS), on the mechanical and anticorrosive characteristics of the prepared nanocomposite coatings, based on ARs, was investigated., U ovom radu prikazana je sinteza alkidnih smola visokih performansi baziranih na otpadnim poli(etilentereftalat) (PET) glikolizatima. PET glikolizati su sintetisani katalitičkom depolimerizacijom sa trimetilolpropanom (TMP) i trimetiloletanom (TME) koji su korišćeni za zamenu polihidroksilne komponente u toku sinteze alkidnih smola. Dobijeni glikolizati i alkidne smole u velikom prinosu su okarakterisane FTIR i 1HNMR spektroskopijom, kiselinskim, jodnim i hidroksilnim brojem. Određena su reološka svojstva sintetisanih alkidnih smola kao što su debljina, athezija, tvrdoća i sjaj i sve sintetisane alkidne smole su pokazale veliku adeziju i tvrdoću i sjaj veći od 98%. Ispitivan je uticaj dodatka modifikovanih silika Aerosil® R380 nanočestica na mehaničke I antikorozivne karakteristike dobijenih nanokompozitnih premaza na bazi alkidnih smola.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Alkyd nanocomposite coatings based on waste pet glicolyzates and modified silica nanoparticles, Alkid nanokompozitni premazi bazirani na otpadnim pet glikolizatima modifikovani nanočesticama silike",
pages = "54-47",
number = "1",
volume = "57",
doi = "10.5937/ZasMat1601047R"
}

Rusmirović, J., Božić, A. R., Stamenović, M., Spasojević, P., Rančić, M., Stojiljković, I.,& Marinković, A.. (2016). Alkyd nanocomposite coatings based on waste pet glicolyzates and modified silica nanoparticles. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 57(1), 47-54.
https://doi.org/10.5937/ZasMat1601047R

Rusmirović J, Božić AR, Stamenović M, Spasojević P, Rančić M, Stojiljković I, Marinković A. Alkyd nanocomposite coatings based on waste pet glicolyzates and modified silica nanoparticles. in Zaštita materijala. 2016;57(1):47-54.
doi:10.5937/ZasMat1601047R .

Rusmirović, Jelena, Božić, Aleksandra R., Stamenović, Marina, Spasojević, Pavle, Rančić, Milica, Stojiljković, Ivana, Marinković, Aleksandar, "Alkyd nanocomposite coatings based on waste pet glicolyzates and modified silica nanoparticles" in Zaštita materijala, 57, no. 1 (2016):47-54,
https://doi.org/10.5937/ZasMat1601047R . .

TY  - JOUR
AU  - Božić, Aleksandra R.
AU  - Marinković, Aleksandar
AU  - Bjelogrlić, Snežana K.
AU  - Todorović, Tamara
AU  - Cvijetić, Ilija
AU  - Novaković, Irena T.
AU  - Muller, Christian D.
AU  - Filipović, Nenad R.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3325
AB  - A comparative study of antitumor activity of mono- and bis-quinoline based (thio) carbohydrazones was investigated by a series of tests on two human malignant cell lines: acute monocytic leukemia (THP-1) and pancreatic adenocarcinoma cancer stem cells (AsPC-1). Thiocarbohydrazones (TCHs) revealed superior pro-apoptotic activity over carbohydrazones (CHs) on both tested cell phenotypes, also displaying multi-target profile activities. Programmed cell death triggered by TCHs was partially caspase-dependent, mainly caspase-8 related. Activity against cancer stem cells (CSCs) was evaluated on 2D monolayers and 3D spheroidal models, where two out of three tested bis-TCHs successfully stimulated apoptosis accompanied by a reduction in size of treated spheres. Additionally, all bis-TCHs induced significant decrease in percentage of CD44-expressing AsPC-1 cells that indicate on their ability to induce reprogramming of CSC phenotype. Current results highly support further assessment of bis-TCHs in order to specify their specific targets in cancer cells and particularly in the CSCs subpopulation.
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Quinoline based mono- and bis-(thio) carbohydrazones: synthesis, anticancer activity in 2D and 3D cancer and cancer stem cell models
EP  - 104781
IS  - 106
SP  - 104763
VL  - 6
DO  - 10.1039/c6ra23940d
ER  - 

@article{
author = "Božić, Aleksandra R. and Marinković, Aleksandar and Bjelogrlić, Snežana K. and Todorović, Tamara and Cvijetić, Ilija and Novaković, Irena T. and Muller, Christian D. and Filipović, Nenad R.",
year = "2016",
abstract = "A comparative study of antitumor activity of mono- and bis-quinoline based (thio) carbohydrazones was investigated by a series of tests on two human malignant cell lines: acute monocytic leukemia (THP-1) and pancreatic adenocarcinoma cancer stem cells (AsPC-1). Thiocarbohydrazones (TCHs) revealed superior pro-apoptotic activity over carbohydrazones (CHs) on both tested cell phenotypes, also displaying multi-target profile activities. Programmed cell death triggered by TCHs was partially caspase-dependent, mainly caspase-8 related. Activity against cancer stem cells (CSCs) was evaluated on 2D monolayers and 3D spheroidal models, where two out of three tested bis-TCHs successfully stimulated apoptosis accompanied by a reduction in size of treated spheres. Additionally, all bis-TCHs induced significant decrease in percentage of CD44-expressing AsPC-1 cells that indicate on their ability to induce reprogramming of CSC phenotype. Current results highly support further assessment of bis-TCHs in order to specify their specific targets in cancer cells and particularly in the CSCs subpopulation.",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Quinoline based mono- and bis-(thio) carbohydrazones: synthesis, anticancer activity in 2D and 3D cancer and cancer stem cell models",
pages = "104781-104763",
number = "106",
volume = "6",
doi = "10.1039/c6ra23940d"
}

Božić, A. R., Marinković, A., Bjelogrlić, S. K., Todorović, T., Cvijetić, I., Novaković, I. T., Muller, C. D.,& Filipović, N. R.. (2016). Quinoline based mono- and bis-(thio) carbohydrazones: synthesis, anticancer activity in 2D and 3D cancer and cancer stem cell models. in RSC Advances
Royal Society of Chemistry., 6(106), 104763-104781.
https://doi.org/10.1039/c6ra23940d

Božić AR, Marinković A, Bjelogrlić SK, Todorović T, Cvijetić I, Novaković IT, Muller CD, Filipović NR. Quinoline based mono- and bis-(thio) carbohydrazones: synthesis, anticancer activity in 2D and 3D cancer and cancer stem cell models. in RSC Advances. 2016;6(106):104763-104781.
doi:10.1039/c6ra23940d .

Božić, Aleksandra R., Marinković, Aleksandar, Bjelogrlić, Snežana K., Todorović, Tamara, Cvijetić, Ilija, Novaković, Irena T., Muller, Christian D., Filipović, Nenad R., "Quinoline based mono- and bis-(thio) carbohydrazones: synthesis, anticancer activity in 2D and 3D cancer and cancer stem cell models" in RSC Advances, 6, no. 106 (2016):104763-104781,
https://doi.org/10.1039/c6ra23940d . .