TY  - JOUR
AU  - Šešlija, Sanja
AU  - Nešić, Aleksandra
AU  - Škorić, Marija
AU  - Krušić, Melina
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7614
AB  - The present paper reports on pectin based films modified with carboxymethyl cellulose intended for food packaging. The films are prepared by solvent-casting method with different carboxymethyl cellulose content and cross-linker concentration (Ca 2+ ions) in the presence of glycerol as a plasticizer. FT-IR spectra of the prepared films propose that carboxyl group from pectin are mainly involved in interactions with CMC, whereas −OH groups are mainly involved in self-associated hydrogen bonding of neat polymers. Further, an addition of carboxymethyl cellulose improved mechanical properties compared to pure pectin films, while TGA analysis confirmed satisfying thermal stability regarding their potential application as packaging material. Finally, water vapor permeabi lity values are in the range of 1.32 × 10 −7 up to 2.03 × 10 −7 g/m h Pa. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - Macromolecular Symposia
T1  - Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material
VL  - 378
IS  - 1
DO  - 10.1002/masy.201600163
ER  - 

@article{
author = "Šešlija, Sanja and Nešić, Aleksandra and Škorić, Marija and Krušić, Melina and Santagata, Gabriella and Malinconico, Mario",
year = "2018",
abstract = "The present paper reports on pectin based films modified with carboxymethyl cellulose intended for food packaging. The films are prepared by solvent-casting method with different carboxymethyl cellulose content and cross-linker concentration (Ca 2+ ions) in the presence of glycerol as a plasticizer. FT-IR spectra of the prepared films propose that carboxyl group from pectin are mainly involved in interactions with CMC, whereas −OH groups are mainly involved in self-associated hydrogen bonding of neat polymers. Further, an addition of carboxymethyl cellulose improved mechanical properties compared to pure pectin films, while TGA analysis confirmed satisfying thermal stability regarding their potential application as packaging material. Finally, water vapor permeabi lity values are in the range of 1.32 × 10 −7 up to 2.03 × 10 −7 g/m h Pa. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "Macromolecular Symposia",
title = "Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material",
volume = "378",
number = "1",
doi = "10.1002/masy.201600163"
}

Šešlija, S., Nešić, A., Škorić, M., Krušić, M., Santagata, G.,& Malinconico, M.. (2018). Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material. in Macromolecular Symposia, 378(1).
https://doi.org/10.1002/masy.201600163

Šešlija S, Nešić A, Škorić M, Krušić M, Santagata G, Malinconico M. Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material. in Macromolecular Symposia. 2018;378(1).
doi:10.1002/masy.201600163 .

Šešlija, Sanja, Nešić, Aleksandra, Škorić, Marija, Krušić, Melina, Santagata, Gabriella, Malinconico, Mario, "Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material" in Macromolecular Symposia, 378, no. 1 (2018),
https://doi.org/10.1002/masy.201600163 . .

TY  - JOUR
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena
AU  - Mitrić, Miodrag
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis Krušić, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1562
AB  - To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer. (C) 2015 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel
VL  - 38
IS  - 5
SP  - 1014
EP  - 1026
DO  - 10.1002/pc.23665
ER  - 

@article{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena and Mitrić, Miodrag and Popović, Maja and Rakočević, Zlatko Lj. and Kalagasidis Krušić, Melina and Kačarević-Popović, Zorica M.",
year = "2017",
abstract = "To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer. (C) 2015 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel",
volume = "38",
number = "5",
pages = "1014-1026",
doi = "10.1002/pc.23665"
}

Spasojević, J. P., Radosavljević, A., Krstić, J., Mitrić, M., Popović, M., Rakočević, Z. Lj., Kalagasidis Krušić, M.,& Kačarević-Popović, Z. M.. (2017). Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel. in Polymer Composites, 38(5), 1014-1026.
https://doi.org/10.1002/pc.23665

Spasojević JP, Radosavljević A, Krstić J, Mitrić M, Popović M, Rakočević ZL, Kalagasidis Krušić M, Kačarević-Popović ZM. Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel. in Polymer Composites. 2017;38(5):1014-1026.
doi:10.1002/pc.23665 .

Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena, Mitrić, Miodrag, Popović, Maja, Rakočević, Zlatko Lj., Kalagasidis Krušić, Melina, Kačarević-Popović, Zorica M., "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel" in Polymer Composites, 38, no. 5 (2017):1014-1026,
https://doi.org/10.1002/pc.23665 . .

TY  - JOUR
AU  - Lučić Škorić, Marija
AU  - Terzić, Ivan
AU  - Milosavljevic, Nedeljko
AU  - Radetić, Maja M.
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1226
AB  - The present paper deals with removal and photocatalytic degradation of the textile dyes by TiO2 nanoparticles immobilized onto chitosan-based microparticles. The microparticles composed of chitosan (Ch) and poly(methacrylic acid) (PMA) were fabricated for the first time by inverse suspension polymerization. They were utilized for colloidal TiO2 nanoparticles immobilization, synthetized by acidic hydrolysis of TiCl4. To evaluate the potential application of Ch/PMA/TiO2 microparticles for treatment of textile wastwaters, their photocatalytic activity was examined by degradation assessment of three different groups of anionic azo dyes in aqueous solutions under solar light simulating source. FTIR analysis revealed that Ch and PMA were incorporated in the polymer network. SEM and optical microscopy confirmed their spherical shape. Under illumination, Ch/PMA/TiO2 microparticles completely removed dyes C.I. Acid Orange 7, C.I. Acid Red 18, C.I. Acid Blue 113, C.I. Reactive Black 5, C.I. Direct Blue 78, while removal degree of C.I. Reactive Yellow 17 was 75%. It was found that pH had significant influence on the photocatalytic activity of Ch/PMA/TiO2 microparticles. Increase of solution pH from acidic to alkaline, lead to decrease in photodegradation rate of C.I. Acid Orange 7 during the first hours of illumination. After three illumination cycles, removal degree of C.I. Acid Orange 7 was maintained at remarkably high level (95% at pH 5.60 and 100% at pH 2.00 and 8.00), indicating that microparticles could be reused without significant loss of photocatalytic efficiency. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - European Polymer Journal
T1  - Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes
VL  - 82
SP  - 57
EP  - 70
DO  - 10.1016/j.eurpolymj.2016.06.026
ER  - 

@article{
author = "Lučić Škorić, Marija and Terzić, Ivan and Milosavljevic, Nedeljko and Radetić, Maja M. and Šaponjić, Zoran and Radoičić, Marija B. and Kalagasidis Krušić, Melina",
year = "2016",
abstract = "The present paper deals with removal and photocatalytic degradation of the textile dyes by TiO2 nanoparticles immobilized onto chitosan-based microparticles. The microparticles composed of chitosan (Ch) and poly(methacrylic acid) (PMA) were fabricated for the first time by inverse suspension polymerization. They were utilized for colloidal TiO2 nanoparticles immobilization, synthetized by acidic hydrolysis of TiCl4. To evaluate the potential application of Ch/PMA/TiO2 microparticles for treatment of textile wastwaters, their photocatalytic activity was examined by degradation assessment of three different groups of anionic azo dyes in aqueous solutions under solar light simulating source. FTIR analysis revealed that Ch and PMA were incorporated in the polymer network. SEM and optical microscopy confirmed their spherical shape. Under illumination, Ch/PMA/TiO2 microparticles completely removed dyes C.I. Acid Orange 7, C.I. Acid Red 18, C.I. Acid Blue 113, C.I. Reactive Black 5, C.I. Direct Blue 78, while removal degree of C.I. Reactive Yellow 17 was 75%. It was found that pH had significant influence on the photocatalytic activity of Ch/PMA/TiO2 microparticles. Increase of solution pH from acidic to alkaline, lead to decrease in photodegradation rate of C.I. Acid Orange 7 during the first hours of illumination. After three illumination cycles, removal degree of C.I. Acid Orange 7 was maintained at remarkably high level (95% at pH 5.60 and 100% at pH 2.00 and 8.00), indicating that microparticles could be reused without significant loss of photocatalytic efficiency. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "European Polymer Journal",
title = "Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes",
volume = "82",
pages = "57-70",
doi = "10.1016/j.eurpolymj.2016.06.026"
}

Lučić Škorić, M., Terzić, I., Milosavljevic, N., Radetić, M. M., Šaponjić, Z., Radoičić, M. B.,& Kalagasidis Krušić, M.. (2016). Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes. in European Polymer Journal, 82, 57-70.
https://doi.org/10.1016/j.eurpolymj.2016.06.026

Lučić Škorić M, Terzić I, Milosavljevic N, Radetić MM, Šaponjić Z, Radoičić MB, Kalagasidis Krušić M. Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes. in European Polymer Journal. 2016;82:57-70.
doi:10.1016/j.eurpolymj.2016.06.026 .

Lučić Škorić, Marija, Terzić, Ivan, Milosavljevic, Nedeljko, Radetić, Maja M., Šaponjić, Zoran, Radoičić, Marija B., Kalagasidis Krušić, Melina, "Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes" in European Polymer Journal, 82 (2016):57-70,
https://doi.org/10.1016/j.eurpolymj.2016.06.026 . .

TY  - JOUR
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena
AU  - Jovanovic, Dragutin
AU  - Spasojević, Vuk D.
AU  - Kalagasidis Krušić, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/697
AB  - Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Youngs modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - European Polymer Journal
T1  - Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation
VL  - 69
SP  - 168
EP  - 185
DO  - 10.1016/j.eurpolymj.2015.06.008
ER  - 

@article{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena and Jovanovic, Dragutin and Spasojević, Vuk D. and Kalagasidis Krušić, Melina and Kačarević-Popović, Zorica M.",
year = "2015",
abstract = "Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Youngs modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "European Polymer Journal",
title = "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation",
volume = "69",
pages = "168-185",
doi = "10.1016/j.eurpolymj.2015.06.008"
}

Spasojević, J. P., Radosavljević, A., Krstić, J., Jovanovic, D., Spasojević, V. D., Kalagasidis Krušić, M.,& Kačarević-Popović, Z. M.. (2015). Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation. in European Polymer Journal, 69, 168-185.
https://doi.org/10.1016/j.eurpolymj.2015.06.008

Spasojević JP, Radosavljević A, Krstić J, Jovanovic D, Spasojević VD, Kalagasidis Krušić M, Kačarević-Popović ZM. Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation. in European Polymer Journal. 2015;69:168-185.
doi:10.1016/j.eurpolymj.2015.06.008 .

Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena, Jovanovic, Dragutin, Spasojević, Vuk D., Kalagasidis Krušić, Melina, Kačarević-Popović, Zorica M., "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation" in European Polymer Journal, 69 (2015):168-185,
https://doi.org/10.1016/j.eurpolymj.2015.06.008 . .

TY  - JOUR
AU  - Lučić Škorić, Marija
AU  - Milosavljevic, Nedeljko
AU  - Radetić, Maja M.
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/768
AB  - An interpenetrating polymer network (IPN) based on the sodium alginate (A) and partially neutralized poly(methacrylic acid) (MAA) was prepared by free radical polymerization followed by additional cross-linking of sodium alginate with calcium ions. Obtained material (A/MAA IPN) was characterized by FTIR spectroscopy, thermogravimetric analysis, scanning electron microscopy, and rheological measurements. Swelling behavior of synthetized IPN has been also investigated. TiO2 nanoparticles (TiO2 NPs) were immobilized onto A/MAA IPN by dip-coating method and obtained TiO2/IPN nanocomposite was used for removal of the methylene blue (MB) from aqueous solution. The photodegradation (under illumination) and sorption (in the dark) processes for dye removal were monitored through decrease of dye concentration in the solution by UV/VIS spectrometer. The TiO2/IPN nanocomposite sorbed approximately 93% of the MB from a 10 mg L-1 MB solution in the dark, but no degradation occurred. Likewise, more than 93% of dye was removed after 8 h of illumination. However, after 24 h of illumination, the samples were discolored indicating that dye molecules were successfully degraded. Thus, the TiO2/IPN nanocomposite could be utilized in the photodegradation-sorption process for the abatement of pollutants in water. POLYM. ENG. SCI., 55:2511-2518, 2015. (c) 2015 Society of Plastics Engineers
T2  - Polymer Engineering and Science
T1  - Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles
VL  - 55
IS  - 11
SP  - 2511
EP  - 2518
DO  - 10.1002/pen.24141
ER  - 

@article{
author = "Lučić Škorić, Marija and Milosavljevic, Nedeljko and Radetić, Maja M. and Šaponjić, Zoran and Radoičić, Marija B. and Kalagasidis Krušić, Melina",
year = "2015",
abstract = "An interpenetrating polymer network (IPN) based on the sodium alginate (A) and partially neutralized poly(methacrylic acid) (MAA) was prepared by free radical polymerization followed by additional cross-linking of sodium alginate with calcium ions. Obtained material (A/MAA IPN) was characterized by FTIR spectroscopy, thermogravimetric analysis, scanning electron microscopy, and rheological measurements. Swelling behavior of synthetized IPN has been also investigated. TiO2 nanoparticles (TiO2 NPs) were immobilized onto A/MAA IPN by dip-coating method and obtained TiO2/IPN nanocomposite was used for removal of the methylene blue (MB) from aqueous solution. The photodegradation (under illumination) and sorption (in the dark) processes for dye removal were monitored through decrease of dye concentration in the solution by UV/VIS spectrometer. The TiO2/IPN nanocomposite sorbed approximately 93% of the MB from a 10 mg L-1 MB solution in the dark, but no degradation occurred. Likewise, more than 93% of dye was removed after 8 h of illumination. However, after 24 h of illumination, the samples were discolored indicating that dye molecules were successfully degraded. Thus, the TiO2/IPN nanocomposite could be utilized in the photodegradation-sorption process for the abatement of pollutants in water. POLYM. ENG. SCI., 55:2511-2518, 2015. (c) 2015 Society of Plastics Engineers",
journal = "Polymer Engineering and Science",
title = "Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles",
volume = "55",
number = "11",
pages = "2511-2518",
doi = "10.1002/pen.24141"
}

Lučić Škorić, M., Milosavljevic, N., Radetić, M. M., Šaponjić, Z., Radoičić, M. B.,& Kalagasidis Krušić, M.. (2015). Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles. in Polymer Engineering and Science, 55(11), 2511-2518.
https://doi.org/10.1002/pen.24141

Lučić Škorić M, Milosavljevic N, Radetić MM, Šaponjić Z, Radoičić MB, Kalagasidis Krušić M. Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles. in Polymer Engineering and Science. 2015;55(11):2511-2518.
doi:10.1002/pen.24141 .

Lučić Škorić, Marija, Milosavljevic, Nedeljko, Radetić, Maja M., Šaponjić, Zoran, Radoičić, Marija B., Kalagasidis Krušić, Melina, "Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles" in Polymer Engineering and Science, 55, no. 11 (2015):2511-2518,
https://doi.org/10.1002/pen.24141 . .

TY  - JOUR
AU  - Lucic, Malta
AU  - Milosavljevic, Nedeljko
AU  - Radetić, Maja M.
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5884
AB  - TiO2/hydrogel nanocomposite has been utilized for investigation of photocatalytic degradation of three different groups of anionic azo dyes in aqueous solutions under solar light simulating source in order to evaluate its potential application for treatment of textile wastewaters. Hydrogel based on chitosan, itaconic and methacrylic acid (monomers ratio Ch/IA/MAA = 1:1.56:10) was modified with synthetized 0.2 M colloidal TiO2 nanoparticles and 0.2 M commercial Degussa P-25. SEM/EDX measurements confirmed the presence of Ti in the hydrogel. TiO2 nanoparticles did not affect already formed covalent bonds within polymer network, nor did they affect its thermal stability. However, network morphology, mechanical properties and swelling behavior were changed in the presence of TiO2 nanoparticles. Under sun-like illumination, nanocomposite with immobilized colloidal TiO2 nanoparticles completely removed C.I. Acid Red 18, C.I. Acid Blue 113, C.I. Reactive Black Sand C.I. Direct Blue 78, while removal degree of CI. Reactive Yellow 17 was 55%. After four cycles of illumination removal rate of C.I. Acid Red 18 was 75%, indicating that prepared TiO2/hydrogel nanocomposites could be reused without significant loses of photocatalytic efficiency. (c) 2013 Elsevier B.V. All rights reserved.
T2  - Separation and Purification Technology
T1  - The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes
VL  - 122
SP  - 206
EP  - 216
DO  - 10.1016/j.seppur.2013.11.002
ER  - 

@article{
author = "Lucic, Malta and Milosavljevic, Nedeljko and Radetić, Maja M. and Šaponjić, Zoran and Radoičić, Marija B. and Kalagasidis Krušić, Melina",
year = "2014",
abstract = "TiO2/hydrogel nanocomposite has been utilized for investigation of photocatalytic degradation of three different groups of anionic azo dyes in aqueous solutions under solar light simulating source in order to evaluate its potential application for treatment of textile wastewaters. Hydrogel based on chitosan, itaconic and methacrylic acid (monomers ratio Ch/IA/MAA = 1:1.56:10) was modified with synthetized 0.2 M colloidal TiO2 nanoparticles and 0.2 M commercial Degussa P-25. SEM/EDX measurements confirmed the presence of Ti in the hydrogel. TiO2 nanoparticles did not affect already formed covalent bonds within polymer network, nor did they affect its thermal stability. However, network morphology, mechanical properties and swelling behavior were changed in the presence of TiO2 nanoparticles. Under sun-like illumination, nanocomposite with immobilized colloidal TiO2 nanoparticles completely removed C.I. Acid Red 18, C.I. Acid Blue 113, C.I. Reactive Black Sand C.I. Direct Blue 78, while removal degree of CI. Reactive Yellow 17 was 55%. After four cycles of illumination removal rate of C.I. Acid Red 18 was 75%, indicating that prepared TiO2/hydrogel nanocomposites could be reused without significant loses of photocatalytic efficiency. (c) 2013 Elsevier B.V. All rights reserved.",
journal = "Separation and Purification Technology",
title = "The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes",
volume = "122",
pages = "206-216",
doi = "10.1016/j.seppur.2013.11.002"
}

Lucic, M., Milosavljevic, N., Radetić, M. M., Šaponjić, Z., Radoičić, M. B.,& Kalagasidis Krušić, M.. (2014). The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes. in Separation and Purification Technology, 122, 206-216.
https://doi.org/10.1016/j.seppur.2013.11.002

Lucic M, Milosavljevic N, Radetić MM, Šaponjić Z, Radoičić MB, Kalagasidis Krušić M. The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes. in Separation and Purification Technology. 2014;122:206-216.
doi:10.1016/j.seppur.2013.11.002 .

Lucic, Malta, Milosavljevic, Nedeljko, Radetić, Maja M., Šaponjić, Zoran, Radoičić, Marija B., Kalagasidis Krušić, Melina, "The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes" in Separation and Purification Technology, 122 (2014):206-216,
https://doi.org/10.1016/j.seppur.2013.11.002 . .

TY  - JOUR
AU  - Marija, Lucic
AU  - Nedeljko, Milosavljevic
AU  - Radetić, Maja M.
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5920
AB  - Photocatalytic degradation of dye C.I. Acid Orange 7 in aqueous solution using TiO2/hydrogel nanocomposite under solar light simulating source was studied. Hydrogel based on chitosan, itaconic and methacrylic acid was modified with colloidal TiO2 nanoparticles synthetized by acidic hydrolysis of TiCl4 and commercial Degussa P25 TiO2 nanoparticles. SEM/EDX analysis confirmed the presence of TiO2 nanoparticles onto/into hydrogel. It was found that both types of photocatalysts efficiently removed the dye from solution, but sorption rates and photodegradation efficiency were higher in the case of colloidal TiO2 nanoparticles. They ensured complete discoloration of dye solution. The efficiency of the reused TiO2/hydrogel nanocomposite showed that photodegradation activity was maintained at satisfactory level after three repeated cycles of illumination. POLYM. COMPOS., 35:806-815, 2014. (c) 2013 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Photocatalytic Degradation of C. I. Acid Orange 7 by TiO2 Nanoparticles Immobilized onto/ into Chitosan- Based Hydrogel
VL  - 35
IS  - 4
SP  - 806
EP  - 815
DO  - 10.1002/pc.22724
ER  - 

@article{
author = "Marija, Lucic and Nedeljko, Milosavljevic and Radetić, Maja M. and Šaponjić, Zoran and Radoičić, Marija B. and Kalagasidis Krušić, Melina",
year = "2014",
abstract = "Photocatalytic degradation of dye C.I. Acid Orange 7 in aqueous solution using TiO2/hydrogel nanocomposite under solar light simulating source was studied. Hydrogel based on chitosan, itaconic and methacrylic acid was modified with colloidal TiO2 nanoparticles synthetized by acidic hydrolysis of TiCl4 and commercial Degussa P25 TiO2 nanoparticles. SEM/EDX analysis confirmed the presence of TiO2 nanoparticles onto/into hydrogel. It was found that both types of photocatalysts efficiently removed the dye from solution, but sorption rates and photodegradation efficiency were higher in the case of colloidal TiO2 nanoparticles. They ensured complete discoloration of dye solution. The efficiency of the reused TiO2/hydrogel nanocomposite showed that photodegradation activity was maintained at satisfactory level after three repeated cycles of illumination. POLYM. COMPOS., 35:806-815, 2014. (c) 2013 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Photocatalytic Degradation of C. I. Acid Orange 7 by TiO2 Nanoparticles Immobilized onto/ into Chitosan- Based Hydrogel",
volume = "35",
number = "4",
pages = "806-815",
doi = "10.1002/pc.22724"
}

Marija, L., Nedeljko, M., Radetić, M. M., Šaponjić, Z., Radoičić, M. B.,& Kalagasidis Krušić, M.. (2014). Photocatalytic Degradation of C. I. Acid Orange 7 by TiO2 Nanoparticles Immobilized onto/ into Chitosan- Based Hydrogel. in Polymer Composites, 35(4), 806-815.
https://doi.org/10.1002/pc.22724

Marija L, Nedeljko M, Radetić MM, Šaponjić Z, Radoičić MB, Kalagasidis Krušić M. Photocatalytic Degradation of C. I. Acid Orange 7 by TiO2 Nanoparticles Immobilized onto/ into Chitosan- Based Hydrogel. in Polymer Composites. 2014;35(4):806-815.
doi:10.1002/pc.22724 .

Marija, Lucic, Nedeljko, Milosavljevic, Radetić, Maja M., Šaponjić, Zoran, Radoičić, Marija B., Kalagasidis Krušić, Melina, "Photocatalytic Degradation of C. I. Acid Orange 7 by TiO2 Nanoparticles Immobilized onto/ into Chitosan- Based Hydrogel" in Polymer Composites, 35, no. 4 (2014):806-815,
https://doi.org/10.1002/pc.22724 . .

TY  - CONF
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena
AU  - Mitrić, Miodrag
AU  - Kalagasidis Krušić, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9241
AB  - In this work, silver nanoparticles (AgNPs) are synthesized within thermo responsive poly(N-isopropylacrylamide) (PNiPAAm) hydrogels of different 
concentrations, by γ-irradiation. The UV-Vis plasmon absorption 
characterization of AgNPs and its modeling using Mie theory showed that 
their diameters are less than 20 nm. The X-ray diffraction (XRD) data are 
consistent with the face centered cubic (FCC) crystal structure of bulk 
metallic Ag. The negative lattice strain (lattice contraction) was observed 
for the samples where the AgNPs are incorporated in the xerogel solid 
matrix of highest polymer concentration (15 wt.% PNiPAAm). The lattice 
parameter values are found to be higher than the bulk lattice parameter of 
Ag for larger nanoparticles formed in 5 wt.% PNiPAAm, whereas the 
crystallites were under tensile stress. On the other hand, for smaller 
nanoparticles formed in 15 wt.% PNiPAAm, crystallites were under 
compression stress (negative stress) whereby the lattice is contracted.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Structural characteristics of Ag  nanoparticles synthesized in situ within  pnipaam hydrogel by γ-irradiation
VL  - H-28-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9241
ER  - 

@conference{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena and Mitrić, Miodrag and Kalagasidis Krušić, Melina and Kačarević-Popović, Zorica M.",
year = "2014",
abstract = "In this work, silver nanoparticles (AgNPs) are synthesized within thermo responsive poly(N-isopropylacrylamide) (PNiPAAm) hydrogels of different 
concentrations, by γ-irradiation. The UV-Vis plasmon absorption 
characterization of AgNPs and its modeling using Mie theory showed that 
their diameters are less than 20 nm. The X-ray diffraction (XRD) data are 
consistent with the face centered cubic (FCC) crystal structure of bulk 
metallic Ag. The negative lattice strain (lattice contraction) was observed 
for the samples where the AgNPs are incorporated in the xerogel solid 
matrix of highest polymer concentration (15 wt.% PNiPAAm). The lattice 
parameter values are found to be higher than the bulk lattice parameter of 
Ag for larger nanoparticles formed in 5 wt.% PNiPAAm, whereas the 
crystallites were under tensile stress. On the other hand, for smaller 
nanoparticles formed in 15 wt.% PNiPAAm, crystallites were under 
compression stress (negative stress) whereby the lattice is contracted.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Structural characteristics of Ag  nanoparticles synthesized in situ within  pnipaam hydrogel by γ-irradiation",
volume = "H-28-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9241"
}

Spasojević, J. P., Radosavljević, A., Krstić, J., Mitrić, M., Kalagasidis Krušić, M.,& Kačarević-Popović, Z. M.. (2014). Structural characteristics of Ag  nanoparticles synthesized in situ within  pnipaam hydrogel by γ-irradiation. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., H-28-P.
https://hdl.handle.net/21.15107/rcub_vinar_9241

Spasojević JP, Radosavljević A, Krstić J, Mitrić M, Kalagasidis Krušić M, Kačarević-Popović ZM. Structural characteristics of Ag  nanoparticles synthesized in situ within  pnipaam hydrogel by γ-irradiation. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;H-28-P.
https://hdl.handle.net/21.15107/rcub_vinar_9241 .

Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena, Mitrić, Miodrag, Kalagasidis Krušić, Melina, Kačarević-Popović, Zorica M., "Structural characteristics of Ag  nanoparticles synthesized in situ within  pnipaam hydrogel by γ-irradiation" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, H-28-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9241 .

TY  - JOUR
AU  - Milosavljevic, Nedeljko B.
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra A.
AU  - Filipović, Jovanka M.
AU  - Štrbac, Svetlana
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis Krušić, Melina
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4438
AB  - Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were applied as adsorbents for the removal of Zn(2+) ions from aqueous solution. In batch tests, the influence of solution pH, contact time, initial metal ion concentration and temperature was examined. The sorption was found pH dependent, pH 5.5 being the optimum value. The adsorption process was well described by the pseudosecond order kinetic. The hydrogels were characterized by spectral (Fourier transform infrared-FTIR) and structural (SEM/EDX and atomic force microscopy-AFM) analyses. The surface topography changes were observed by atomic force microscopy, while the changes in surface composition were detected using phase imaging AFM. The negative values of free energy and enthalpy indicated that the adsorption is spontaneous and exothermic one. The best fitting isotherms were Langmuir and Redlich-Peterson and it was found that both linear and nonlinear methods were appropriate for obtaining the isotherm parameters. However, the increase of temperature leads to higher adsorption capacity, since swelling degree increased with temperature. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Journal of Hazardous Materials
T1  - Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid
VL  - 192
IS  - 2
SP  - 846
EP  - 854
DO  - 10.1016/j.jhazmat.2011.05.093
ER  - 

@article{
author = "Milosavljevic, Nedeljko B. and Ristić, Mirjana and Perić-Grujić, Aleksandra A. and Filipović, Jovanka M. and Štrbac, Svetlana and Rakočević, Zlatko Lj. and Kalagasidis Krušić, Melina",
year = "2011",
abstract = "Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were applied as adsorbents for the removal of Zn(2+) ions from aqueous solution. In batch tests, the influence of solution pH, contact time, initial metal ion concentration and temperature was examined. The sorption was found pH dependent, pH 5.5 being the optimum value. The adsorption process was well described by the pseudosecond order kinetic. The hydrogels were characterized by spectral (Fourier transform infrared-FTIR) and structural (SEM/EDX and atomic force microscopy-AFM) analyses. The surface topography changes were observed by atomic force microscopy, while the changes in surface composition were detected using phase imaging AFM. The negative values of free energy and enthalpy indicated that the adsorption is spontaneous and exothermic one. The best fitting isotherms were Langmuir and Redlich-Peterson and it was found that both linear and nonlinear methods were appropriate for obtaining the isotherm parameters. However, the increase of temperature leads to higher adsorption capacity, since swelling degree increased with temperature. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Journal of Hazardous Materials",
title = "Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid",
volume = "192",
number = "2",
pages = "846-854",
doi = "10.1016/j.jhazmat.2011.05.093"
}

Milosavljevic, N. B., Ristić, M., Perić-Grujić, A. A., Filipović, J. M., Štrbac, S., Rakočević, Z. Lj.,& Kalagasidis Krušić, M.. (2011). Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid. in Journal of Hazardous Materials, 192(2), 846-854.
https://doi.org/10.1016/j.jhazmat.2011.05.093

Milosavljevic NB, Ristić M, Perić-Grujić AA, Filipović JM, Štrbac S, Rakočević ZL, Kalagasidis Krušić M. Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid. in Journal of Hazardous Materials. 2011;192(2):846-854.
doi:10.1016/j.jhazmat.2011.05.093 .

Milosavljevic, Nedeljko B., Ristić, Mirjana, Perić-Grujić, Aleksandra A., Filipović, Jovanka M., Štrbac, Svetlana, Rakočević, Zlatko Lj., Kalagasidis Krušić, Melina, "Sorption of zinc by novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid" in Journal of Hazardous Materials, 192, no. 2 (2011):846-854,
https://doi.org/10.1016/j.jhazmat.2011.05.093 . .

TY  - JOUR
AU  - Milosavljevic, Nedeljko B.
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra A.
AU  - Filipović, Jovanka M.
AU  - Štrbac, Svetlana
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis Krušić, Melina
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4533
AB  - A removal of Cu2+ ions from aqueous solutions onto hydrogels of chitosan. itaconic and methacrylic acid has been investigated using batch adsorption technique. The extent of adsorption was investigated as a function of pH, adsorbent dose, initial metal ion concentration, contact time and temperature. The FIR spectra showed that -NH2, -OH and -COOH groups are involved in the Cu2+ ions adsorption. The surface topography changes were observed by AFM, where the phase images indicated that sorption takes place on the surface of the hydrogel and in the bulk. Pseudo-first order, pseudo-second order and intraparticle diffusion models were analyzed and showed that the Cu2+ ions adsorption followed pseudo-second order kinetics. The equilibrium data were analyzed using Langmuir, Freundlich and Redlich-Peterson isotherms and the best interpretation was given by Redlich-Peterson. The adsorption capacity was found to be 122.59 mg/g, based on the non-linear Langmuir isotherm. Based on the separation factor. R-L, the Cu2+ ion adsorption is favorable, while the low activation energies indicate physisorption. Desorption experiments, done with a nitric acid, showed that the investigated hydrogels could be reused without significant losses of the initial properties even after three adsorption-sorption cycles. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. A: Physicochemical and Engineering Aspects
T1  - Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study
VL  - 388
IS  - 1-3
SP  - 59
EP  - 69
DO  - 10.1016/j.colsurfa.2011.08.011
ER  - 

@article{
author = "Milosavljevic, Nedeljko B. and Ristić, Mirjana and Perić-Grujić, Aleksandra A. and Filipović, Jovanka M. and Štrbac, Svetlana and Rakočević, Zlatko Lj. and Kalagasidis Krušić, Melina",
year = "2011",
abstract = "A removal of Cu2+ ions from aqueous solutions onto hydrogels of chitosan. itaconic and methacrylic acid has been investigated using batch adsorption technique. The extent of adsorption was investigated as a function of pH, adsorbent dose, initial metal ion concentration, contact time and temperature. The FIR spectra showed that -NH2, -OH and -COOH groups are involved in the Cu2+ ions adsorption. The surface topography changes were observed by AFM, where the phase images indicated that sorption takes place on the surface of the hydrogel and in the bulk. Pseudo-first order, pseudo-second order and intraparticle diffusion models were analyzed and showed that the Cu2+ ions adsorption followed pseudo-second order kinetics. The equilibrium data were analyzed using Langmuir, Freundlich and Redlich-Peterson isotherms and the best interpretation was given by Redlich-Peterson. The adsorption capacity was found to be 122.59 mg/g, based on the non-linear Langmuir isotherm. Based on the separation factor. R-L, the Cu2+ ion adsorption is favorable, while the low activation energies indicate physisorption. Desorption experiments, done with a nitric acid, showed that the investigated hydrogels could be reused without significant losses of the initial properties even after three adsorption-sorption cycles. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. A: Physicochemical and Engineering Aspects",
title = "Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study",
volume = "388",
number = "1-3",
pages = "59-69",
doi = "10.1016/j.colsurfa.2011.08.011"
}

Milosavljevic, N. B., Ristić, M., Perić-Grujić, A. A., Filipović, J. M., Štrbac, S., Rakočević, Z. Lj.,& Kalagasidis Krušić, M.. (2011). Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 388(1-3), 59-69.
https://doi.org/10.1016/j.colsurfa.2011.08.011

Milosavljevic NB, Ristić M, Perić-Grujić AA, Filipović JM, Štrbac S, Rakočević ZL, Kalagasidis Krušić M. Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects. 2011;388(1-3):59-69.
doi:10.1016/j.colsurfa.2011.08.011 .

Milosavljevic, Nedeljko B., Ristić, Mirjana, Perić-Grujić, Aleksandra A., Filipović, Jovanka M., Štrbac, Svetlana, Rakočević, Zlatko Lj., Kalagasidis Krušić, Melina, "Removal of Cu2+ ions using hydrogels of chitosan, itaconic and methacrylic acid: FTIR, SEM/EDX, AFM, kinetic and equilibrium study" in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 388, no. 1-3 (2011):59-69,
https://doi.org/10.1016/j.colsurfa.2011.08.011 . .

TY  - JOUR
AU  - Milosavljevic, Nedeljko B.
AU  - Kljajević, Ljiljana M.
AU  - Popović, Ivanka G.
AU  - Filipović, Jovanka M.
AU  - Kalagasidis Krušić, Melina
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4003
AB  - Chitosan is a biodegradable, non-toxic, biocompatible polymer convenient for use in drug delivery. In this study, hybrid polymeric networks (HPNs) based on chitosan, itaconic acid and poly(vinyl alcohol) (PVA) were prepared and characterized. Chitosan was dissolved in itaconic acid in order to obtain ionic crosslinking with the dicarboxylic acid. In the second step, this chitosan/itaconic acid network was mixed with PVA and chemically crosslinked with glutaraldehyde. The chitosan/itaconic acid ratio was kept constant, while the concentrations of PVA and glutaraldehyde were varied. All samples were characterized using swelling studies, dynamic mechanical analysis, Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction and scanning electron microscopy. The equilibrium degrees of swelling obtained for the HPNs were higher than most of the values reported for chitosan hydrogels obtained by dissolving chitosan in acetic acid or HCI aqueous solutions. This method of synthesis also resulted in hydrogels with better mechanical properties and thermal stability. By changing the PVA content and the degree of crosslinking, it is possible to finely tune the properties of the HPNs, which could make them suitable as potential matrices in controlled drug delivery. (C) 2010 Society of Chemical Industry
T2  - Polymer International
T1  - Chitosan, itaconic acid and poly(vinyl alcohol) hybrid polymer networks of high degree of swelling and good mechanical strength
VL  - 59
IS  - 5
SP  - 686
EP  - 694
DO  - 10.1002/pi.2756
ER  - 

@article{
author = "Milosavljevic, Nedeljko B. and Kljajević, Ljiljana M. and Popović, Ivanka G. and Filipović, Jovanka M. and Kalagasidis Krušić, Melina",
year = "2010",
abstract = "Chitosan is a biodegradable, non-toxic, biocompatible polymer convenient for use in drug delivery. In this study, hybrid polymeric networks (HPNs) based on chitosan, itaconic acid and poly(vinyl alcohol) (PVA) were prepared and characterized. Chitosan was dissolved in itaconic acid in order to obtain ionic crosslinking with the dicarboxylic acid. In the second step, this chitosan/itaconic acid network was mixed with PVA and chemically crosslinked with glutaraldehyde. The chitosan/itaconic acid ratio was kept constant, while the concentrations of PVA and glutaraldehyde were varied. All samples were characterized using swelling studies, dynamic mechanical analysis, Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction and scanning electron microscopy. The equilibrium degrees of swelling obtained for the HPNs were higher than most of the values reported for chitosan hydrogels obtained by dissolving chitosan in acetic acid or HCI aqueous solutions. This method of synthesis also resulted in hydrogels with better mechanical properties and thermal stability. By changing the PVA content and the degree of crosslinking, it is possible to finely tune the properties of the HPNs, which could make them suitable as potential matrices in controlled drug delivery. (C) 2010 Society of Chemical Industry",
journal = "Polymer International",
title = "Chitosan, itaconic acid and poly(vinyl alcohol) hybrid polymer networks of high degree of swelling and good mechanical strength",
volume = "59",
number = "5",
pages = "686-694",
doi = "10.1002/pi.2756"
}

Milosavljevic, N. B., Kljajević, L. M., Popović, I. G., Filipović, J. M.,& Kalagasidis Krušić, M.. (2010). Chitosan, itaconic acid and poly(vinyl alcohol) hybrid polymer networks of high degree of swelling and good mechanical strength. in Polymer International, 59(5), 686-694.
https://doi.org/10.1002/pi.2756

Milosavljevic NB, Kljajević LM, Popović IG, Filipović JM, Kalagasidis Krušić M. Chitosan, itaconic acid and poly(vinyl alcohol) hybrid polymer networks of high degree of swelling and good mechanical strength. in Polymer International. 2010;59(5):686-694.
doi:10.1002/pi.2756 .

Milosavljevic, Nedeljko B., Kljajević, Ljiljana M., Popović, Ivanka G., Filipović, Jovanka M., Kalagasidis Krušić, Melina, "Chitosan, itaconic acid and poly(vinyl alcohol) hybrid polymer networks of high degree of swelling and good mechanical strength" in Polymer International, 59, no. 5 (2010):686-694,
https://doi.org/10.1002/pi.2756 . .

TY  - JOUR
AU  - Milosavljevic, Nedeljko B.
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra A.
AU  - Filipović, Jovanka M.
AU  - Štrbac, Svetlana
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis Krušić, Melina
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4173
AB  - A hydrogel has been synthesized by ionic crosslinking of chitosan (Ch) with itaconic acid (IA), followed by a free radical polymerization and crosslinking of Ch/IA network by adding methacrylic acid and the crosslinker. The resulting material (Ch/IA/MAA hydrogel) was characterized by spectral (Fourier transform infrared (FTIR)), thermal (thermogravimetric analysis (TGA)) and structural (SEM/EDX and atomic force microscopy (AFM)) analyses. The prepared hydrogel was investigated as potential adsorbent for removal of Cd2+ ions from aqueous solution. The effect of various physico-chemical parameters such as pH, adsorbent dosage, adsorbate concentration and contact time was studied in batch experiments. The results of spectral analyses of Cd-loaded hydrogel have shown that active functional groups are -NH2, -OH and -COOH. SEM/EDX analysis and AFM surface topography and phase images indicated that apart from the adsorption on the surface of the hydrogel, sorption takes place in the bulk, as well. The experimental kinetic and equilibrium data were better fitted by pseudo-second order kinetic model and Langmuir adsorption isotherm. The parameters obtained in thermodynamic studies showed that the adsorption of Cd2+ on Ch/IA/MAA hydrogel was spontaneous and exothermic in nature. Desorption studies were carried out using acid leaching (HNO3) and it has been shown that the regenerated hydrogel can be reused three times without any loss of adsorption capacity. The maximum adsorption of 285.7 mg/g has been obtained at pH 5.5 and the results of adsorption/desorption experiments implies that the Ch/IA/MAA hydrogel may be used as efficient sorbent for removal of Cd2+ ions from aqueous solution. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - Hydrogel based on chitosan, itaconic acid and methacrylic acid as adsorbent of Cd2+ ions from aqueous solution
VL  - 165
IS  - 2
SP  - 554
EP  - 562
DO  - 10.1016/j.cej.2010.09.072
ER  - 

@article{
author = "Milosavljevic, Nedeljko B. and Ristić, Mirjana and Perić-Grujić, Aleksandra A. and Filipović, Jovanka M. and Štrbac, Svetlana and Rakočević, Zlatko Lj. and Kalagasidis Krušić, Melina",
year = "2010",
abstract = "A hydrogel has been synthesized by ionic crosslinking of chitosan (Ch) with itaconic acid (IA), followed by a free radical polymerization and crosslinking of Ch/IA network by adding methacrylic acid and the crosslinker. The resulting material (Ch/IA/MAA hydrogel) was characterized by spectral (Fourier transform infrared (FTIR)), thermal (thermogravimetric analysis (TGA)) and structural (SEM/EDX and atomic force microscopy (AFM)) analyses. The prepared hydrogel was investigated as potential adsorbent for removal of Cd2+ ions from aqueous solution. The effect of various physico-chemical parameters such as pH, adsorbent dosage, adsorbate concentration and contact time was studied in batch experiments. The results of spectral analyses of Cd-loaded hydrogel have shown that active functional groups are -NH2, -OH and -COOH. SEM/EDX analysis and AFM surface topography and phase images indicated that apart from the adsorption on the surface of the hydrogel, sorption takes place in the bulk, as well. The experimental kinetic and equilibrium data were better fitted by pseudo-second order kinetic model and Langmuir adsorption isotherm. The parameters obtained in thermodynamic studies showed that the adsorption of Cd2+ on Ch/IA/MAA hydrogel was spontaneous and exothermic in nature. Desorption studies were carried out using acid leaching (HNO3) and it has been shown that the regenerated hydrogel can be reused three times without any loss of adsorption capacity. The maximum adsorption of 285.7 mg/g has been obtained at pH 5.5 and the results of adsorption/desorption experiments implies that the Ch/IA/MAA hydrogel may be used as efficient sorbent for removal of Cd2+ ions from aqueous solution. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "Hydrogel based on chitosan, itaconic acid and methacrylic acid as adsorbent of Cd2+ ions from aqueous solution",
volume = "165",
number = "2",
pages = "554-562",
doi = "10.1016/j.cej.2010.09.072"
}

Milosavljevic, N. B., Ristić, M., Perić-Grujić, A. A., Filipović, J. M., Štrbac, S., Rakočević, Z. Lj.,& Kalagasidis Krušić, M.. (2010). Hydrogel based on chitosan, itaconic acid and methacrylic acid as adsorbent of Cd2+ ions from aqueous solution. in Chemical Engineering Journal, 165(2), 554-562.
https://doi.org/10.1016/j.cej.2010.09.072

Milosavljevic NB, Ristić M, Perić-Grujić AA, Filipović JM, Štrbac S, Rakočević ZL, Kalagasidis Krušić M. Hydrogel based on chitosan, itaconic acid and methacrylic acid as adsorbent of Cd2+ ions from aqueous solution. in Chemical Engineering Journal. 2010;165(2):554-562.
doi:10.1016/j.cej.2010.09.072 .

Milosavljevic, Nedeljko B., Ristić, Mirjana, Perić-Grujić, Aleksandra A., Filipović, Jovanka M., Štrbac, Svetlana, Rakočević, Zlatko Lj., Kalagasidis Krušić, Melina, "Hydrogel based on chitosan, itaconic acid and methacrylic acid as adsorbent of Cd2+ ions from aqueous solution" in Chemical Engineering Journal, 165, no. 2 (2010):554-562,
https://doi.org/10.1016/j.cej.2010.09.072 . .

TY  - JOUR
AU  - Kalagasidis Krušić, Melina
AU  - Džunuzović, Enis S.
AU  - Trifunović, Snežana
AU  - Filipović, J
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2760
AB  - Intermolecular complex formation through hydrogen bonding between poly(itaconic acid), partially neutralized and non-neutralized, and polyacrylamide was studied by potentiometry. The complexes were obtained by template polymerization of itaconic acid and partially neutralized itaconic acid on polyacrylamide as a template. All the complexes,were characterized by elemental analysis, FTIR spectroscopy and thermal analysis. (C) 2003 Elsevier Ltd. All rights reserved.
T2  - European Polymer Journal
T1  - Polyacrylamide and poly(itaconic acid) complexes
VL  - 40
IS  - 4
SP  - 793
EP  - 798
DO  - 10.1016/j.europolymj.2003.11.016
ER  - 

@article{
author = "Kalagasidis Krušić, Melina and Džunuzović, Enis S. and Trifunović, Snežana and Filipović, J",
year = "2004",
abstract = "Intermolecular complex formation through hydrogen bonding between poly(itaconic acid), partially neutralized and non-neutralized, and polyacrylamide was studied by potentiometry. The complexes were obtained by template polymerization of itaconic acid and partially neutralized itaconic acid on polyacrylamide as a template. All the complexes,were characterized by elemental analysis, FTIR spectroscopy and thermal analysis. (C) 2003 Elsevier Ltd. All rights reserved.",
journal = "European Polymer Journal",
title = "Polyacrylamide and poly(itaconic acid) complexes",
volume = "40",
number = "4",
pages = "793-798",
doi = "10.1016/j.europolymj.2003.11.016"
}

Kalagasidis Krušić, M., Džunuzović, E. S., Trifunović, S.,& Filipović, J.. (2004). Polyacrylamide and poly(itaconic acid) complexes. in European Polymer Journal, 40(4), 793-798.
https://doi.org/10.1016/j.europolymj.2003.11.016

Kalagasidis Krušić M, Džunuzović ES, Trifunović S, Filipović J. Polyacrylamide and poly(itaconic acid) complexes. in European Polymer Journal. 2004;40(4):793-798.
doi:10.1016/j.europolymj.2003.11.016 .

Kalagasidis Krušić, Melina, Džunuzović, Enis S., Trifunović, Snežana, Filipović, J, "Polyacrylamide and poly(itaconic acid) complexes" in European Polymer Journal, 40, no. 4 (2004):793-798,
https://doi.org/10.1016/j.europolymj.2003.11.016 . .

TY  - JOUR
AU  - Kalagasidis Krušić, Melina
AU  - Džunuzović, Enis S.
AU  - Trifunović, Snežana
AU  - Filipović, J
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2681
AB  - Semi-IPNs based on polyacrylamide (PAAm) and poly(itaconic acid) (PIA) were prepared by two different techniques, polymerizing itaconic acid in the presence of polyacrylamide gel (Samples I) and by makiug the polyacrylamide gel in the presence of poly(itaconic acid) (Samples 11), with different PAAm/PIA ratios. The swelling behavior of the semi-IPNs reveals that gels with low PIA content swell more, while those with high PIA content swell less than a pure PAAm gel, probably due to the formation of intermacromolecular gel-polymer complexes on the basis of hydrogen bonds. The results of thermal analysis indicate an improved therinal stability of the hydrogels and complexes compared with PIA and PAAm.
T2  - Polymer Bulletin
T1  - Semi-IPNs based on polyacrylamide and poly(itaconic acid)
VL  - 51
IS  - 2
SP  - 159
EP  - 166
DO  - 10.1007/s00289-003-0203-7
ER  - 

@article{
author = "Kalagasidis Krušić, Melina and Džunuzović, Enis S. and Trifunović, Snežana and Filipović, J",
year = "2003",
abstract = "Semi-IPNs based on polyacrylamide (PAAm) and poly(itaconic acid) (PIA) were prepared by two different techniques, polymerizing itaconic acid in the presence of polyacrylamide gel (Samples I) and by makiug the polyacrylamide gel in the presence of poly(itaconic acid) (Samples 11), with different PAAm/PIA ratios. The swelling behavior of the semi-IPNs reveals that gels with low PIA content swell more, while those with high PIA content swell less than a pure PAAm gel, probably due to the formation of intermacromolecular gel-polymer complexes on the basis of hydrogen bonds. The results of thermal analysis indicate an improved therinal stability of the hydrogels and complexes compared with PIA and PAAm.",
journal = "Polymer Bulletin",
title = "Semi-IPNs based on polyacrylamide and poly(itaconic acid)",
volume = "51",
number = "2",
pages = "159-166",
doi = "10.1007/s00289-003-0203-7"
}

Kalagasidis Krušić, M., Džunuzović, E. S., Trifunović, S.,& Filipović, J.. (2003). Semi-IPNs based on polyacrylamide and poly(itaconic acid). in Polymer Bulletin, 51(2), 159-166.
https://doi.org/10.1007/s00289-003-0203-7

Kalagasidis Krušić M, Džunuzović ES, Trifunović S, Filipović J. Semi-IPNs based on polyacrylamide and poly(itaconic acid). in Polymer Bulletin. 2003;51(2):159-166.
doi:10.1007/s00289-003-0203-7 .

Kalagasidis Krušić, Melina, Džunuzović, Enis S., Trifunović, Snežana, Filipović, J, "Semi-IPNs based on polyacrylamide and poly(itaconic acid)" in Polymer Bulletin, 51, no. 2 (2003):159-166,
https://doi.org/10.1007/s00289-003-0203-7 . .