TY  - CONF
AU  - Kalagasidis Krušić, Melina
AU  - Lučić Škorić, Marija
AU  - Milovanović, Stoja
AU  - Panić, Vesna
AU  - Marković, Maja
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7392
AB  - The Polymer group of the Faculty of Technology and Metallurgy University of Belgrade deals with environment-sensitive hydrogel as carriersfor biomedical applications, including drug delivery, wound healing, and regenerative medicine. The first hydrogel generation synthesized in our labs was discs made of polyacrylamide and its derivatives. The synthesis was at higher temperatures (50 °C), with traditional crosslinker, N, N’-methylenebisacrylamide, and persulphate/pyrosulphate as initiator. Due to the growing demands for environmental sustainability, the general approach changed to reduce petrochemical raw materials and prepare eco-friendly materials focusing on 1) renewable polymers, initiators, and crosslinkers and 2) the application of simple, cost-effective, and eco-friendly approaches in hydrogel synthesis. To obtain the second hydrogel generation, we use renewable polymers: polysaccharides, proteins, and polyhydroxyalkanoates [1]. Still, the mechanical strength was weak. Hence, the applicationof carboxylic acids, methacrylic and itaconic, and N-isopropyl acrylamide improves mechanical properties and enhances the environmental stimuli of the carriers. Instead of traditional crosslinkers -organic molecules, we gave the advantage to plant extracts like genipin, sodium tripolyphosphate, citric acid, and calcium chloride. We made beads, microgels, aerogels, discs, films, and cylinders sensitive to pH, temperature, magnetic field, or specific molecules such as glucose. Facing an everyday challenge, improving drug delivery routes, especially for poorly water-soluble drugs, and finding an alternative to traditional antibiotics, encapsulation, and controlled release remain a challenge. Therefore, we used a mild condition (e.g., deep coating) to encapsulate/release traditional water-soluble and poorly water-soluble drugs, proteins, phenolic compounds, or supercritical carbon dioxide (scCO2) for thymol, carvacrol, and eugenol, a promising alternative for traditional antibiotics [2]. Furthermore, we reduced the hydrogel production temperature to ambient conditions and made a simple and cost-effective production process that doesn't require special equipment. The promising results we got pushed us further. So, the current research focuses on the encapsulation/controlled release of antioxidant phenolic compounds extracted from orange peel waste by applying ultrasonic-assisted extraction and deep eutectic solvent(DES) based on glycerol: urea: water. We use a new initiator system based on vitamin C and H2O2to polymerizea methacrylic acid[3]that could be useful for other monomers.As a concluding remark, we achieved significant progress in hydrogels encouragingus to continue further.
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
T1  - Environmentally friendly hydrogels for medical and pharmaceutical applications
IS  - 1S
SP  - 27
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7392
ER  - 

@conference{
author = "Kalagasidis Krušić, Melina and Lučić Škorić, Marija and Milovanović, Stoja and Panić, Vesna and Marković, Maja",
year = "2024",
abstract = "The Polymer group of the Faculty of Technology and Metallurgy University of Belgrade deals with environment-sensitive hydrogel as carriersfor biomedical applications, including drug delivery, wound healing, and regenerative medicine. The first hydrogel generation synthesized in our labs was discs made of polyacrylamide and its derivatives. The synthesis was at higher temperatures (50 °C), with traditional crosslinker, N, N’-methylenebisacrylamide, and persulphate/pyrosulphate as initiator. Due to the growing demands for environmental sustainability, the general approach changed to reduce petrochemical raw materials and prepare eco-friendly materials focusing on 1) renewable polymers, initiators, and crosslinkers and 2) the application of simple, cost-effective, and eco-friendly approaches in hydrogel synthesis. To obtain the second hydrogel generation, we use renewable polymers: polysaccharides, proteins, and polyhydroxyalkanoates [1]. Still, the mechanical strength was weak. Hence, the applicationof carboxylic acids, methacrylic and itaconic, and N-isopropyl acrylamide improves mechanical properties and enhances the environmental stimuli of the carriers. Instead of traditional crosslinkers -organic molecules, we gave the advantage to plant extracts like genipin, sodium tripolyphosphate, citric acid, and calcium chloride. We made beads, microgels, aerogels, discs, films, and cylinders sensitive to pH, temperature, magnetic field, or specific molecules such as glucose. Facing an everyday challenge, improving drug delivery routes, especially for poorly water-soluble drugs, and finding an alternative to traditional antibiotics, encapsulation, and controlled release remain a challenge. Therefore, we used a mild condition (e.g., deep coating) to encapsulate/release traditional water-soluble and poorly water-soluble drugs, proteins, phenolic compounds, or supercritical carbon dioxide (scCO2) for thymol, carvacrol, and eugenol, a promising alternative for traditional antibiotics [2]. Furthermore, we reduced the hydrogel production temperature to ambient conditions and made a simple and cost-effective production process that doesn't require special equipment. The promising results we got pushed us further. So, the current research focuses on the encapsulation/controlled release of antioxidant phenolic compounds extracted from orange peel waste by applying ultrasonic-assisted extraction and deep eutectic solvent(DES) based on glycerol: urea: water. We use a new initiator system based on vitamin C and H2O2to polymerizea methacrylic acid[3]that could be useful for other monomers.As a concluding remark, we achieved significant progress in hydrogels encouragingus to continue further.",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts",
title = "Environmentally friendly hydrogels for medical and pharmaceutical applications",
number = "1S",
pages = "27",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7392"
}

Kalagasidis Krušić, M., Lučić Škorić, M., Milovanović, S., Panić, V.,& Marković, M.. (2024). Environmentally friendly hydrogels for medical and pharmaceutical applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
Savez hemijskih inženjera Srbije., 78(1S), 27.
https://hdl.handle.net/21.15107/rcub_technorep_7392

Kalagasidis Krušić M, Lučić Škorić M, Milovanović S, Panić V, Marković M. Environmentally friendly hydrogels for medical and pharmaceutical applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts. 2024;78(1S):27.
https://hdl.handle.net/21.15107/rcub_technorep_7392 .

Kalagasidis Krušić, Melina, Lučić Škorić, Marija, Milovanović, Stoja, Panić, Vesna, Marković, Maja, "Environmentally friendly hydrogels for medical and pharmaceutical applications" in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts, 78, no. 1S (2024):27,
https://hdl.handle.net/21.15107/rcub_technorep_7392 .

TY  - JOUR
AU  - Lučić Škorić, Marija
AU  - Milovanović, Stoja
AU  - Žižović, Irena
AU  - Ortega-Toro, Rodrigo
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
AU  - Kalagasidis Krušić, Melina
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5243
AB  - The aim of the present study was to investigate starch-based materials, prepared in an environmentally friendly way and from renewable resources, suitable for the development of biodegradable active food packaging. For this purpose, a bioactive compound (thymol) was incorporated into thermoplastic starch (TPS) and a TPS blend with poly (ε-caprolactone) (TPS–PCL) by the supercritical CO2 (scCO2) impregnation process. Impregnation experiments with scCO2 were carried out at a pressure of 30 MPa and temperatures in the range of 40–100 °C during 1 to 20 h. The structural, morphological, and thermal properties of the obtained materials were comprehensively evaluated. Bioactive component release kinetic studies were performed in water at 6 °C and 25 °C. It was shown that the scCO2 impregnation process could be successfully employed for thymol loading into TPS and TPS–PCL. The process was significantly influenced by the operating temperature and time as well as content of PCL. The samples showed a controlled release of thymol within seven days with a higher amount of released thymol from the TPS–PCL blend. The obtained materials are solvent-free and release the bioactive component in a controlled manner.
PB  - MDPI
T2  - Polymers
T1  - Supercritical CO2 Impregnation of Thymol in Thermoplastic Starch-Based Blends: Chemico-Physical Properties and Release Kinetics
IS  - 20
SP  - 4360
VL  - 14
DO  - 10.3390/polym14204360
ER  - 

@article{
author = "Lučić Škorić, Marija and Milovanović, Stoja and Žižović, Irena and Ortega-Toro, Rodrigo and Santagata, Gabriella and Malinconico, Mario and Kalagasidis Krušić, Melina",
year = "2022",
abstract = "The aim of the present study was to investigate starch-based materials, prepared in an environmentally friendly way and from renewable resources, suitable for the development of biodegradable active food packaging. For this purpose, a bioactive compound (thymol) was incorporated into thermoplastic starch (TPS) and a TPS blend with poly (ε-caprolactone) (TPS–PCL) by the supercritical CO2 (scCO2) impregnation process. Impregnation experiments with scCO2 were carried out at a pressure of 30 MPa and temperatures in the range of 40–100 °C during 1 to 20 h. The structural, morphological, and thermal properties of the obtained materials were comprehensively evaluated. Bioactive component release kinetic studies were performed in water at 6 °C and 25 °C. It was shown that the scCO2 impregnation process could be successfully employed for thymol loading into TPS and TPS–PCL. The process was significantly influenced by the operating temperature and time as well as content of PCL. The samples showed a controlled release of thymol within seven days with a higher amount of released thymol from the TPS–PCL blend. The obtained materials are solvent-free and release the bioactive component in a controlled manner.",
publisher = "MDPI",
journal = "Polymers",
title = "Supercritical CO2 Impregnation of Thymol in Thermoplastic Starch-Based Blends: Chemico-Physical Properties and Release Kinetics",
number = "20",
pages = "4360",
volume = "14",
doi = "10.3390/polym14204360"
}

Lučić Škorić, M., Milovanović, S., Žižović, I., Ortega-Toro, R., Santagata, G., Malinconico, M.,& Kalagasidis Krušić, M.. (2022). Supercritical CO2 Impregnation of Thymol in Thermoplastic Starch-Based Blends: Chemico-Physical Properties and Release Kinetics. in Polymers
MDPI., 14(20), 4360.
https://doi.org/10.3390/polym14204360

Lučić Škorić M, Milovanović S, Žižović I, Ortega-Toro R, Santagata G, Malinconico M, Kalagasidis Krušić M. Supercritical CO2 Impregnation of Thymol in Thermoplastic Starch-Based Blends: Chemico-Physical Properties and Release Kinetics. in Polymers. 2022;14(20):4360.
doi:10.3390/polym14204360 .

Lučić Škorić, Marija, Milovanović, Stoja, Žižović, Irena, Ortega-Toro, Rodrigo, Santagata, Gabriella, Malinconico, Mario, Kalagasidis Krušić, Melina, "Supercritical CO2 Impregnation of Thymol in Thermoplastic Starch-Based Blends: Chemico-Physical Properties and Release Kinetics" in Polymers, 14, no. 20 (2022):4360,
https://doi.org/10.3390/polym14204360 . .

TY  - JOUR
AU  - Milovanović, Stoja
AU  - Djuris, Jelena
AU  - Dapčević, Aleksandra
AU  - Lučić-Škorić, Marija
AU  - Medarevic, Đorđe
AU  - Pavlovic, Stefan M.
AU  - Ibric, Svetlana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4959
AB  - This study investigates pharmaceutical polymers (Soluplus((R)), HPMCAS, and Eudragit((R)) E100) and supercritical CO2-assisted process for preparation of floating valsartan delivery systems. Tested process (at pressure of 30 MPa and temperature of 100 degrees C during 2 h) enabled preparation of stable porous valsartan formulations which was confirmed with FESEM and mercury intrusion porosimetry analysis. The bulk density of obtained formulations was lower than 550 kg/m(3). FTIR, DSC, and PXRD analysis indicated that there was no chemical interaction between the drug and polymers and that amorphous solid dispersions were obtained. Formulations with Soluplus((R)) and HPMCAS retained its buoyancy in 0.1 M HCl for longer than 24 h, while formulation with Eudragit((R)) E100 retained its buoyancy up to 2 h. Controlled valsartan release was influenced by solubility of polymers in the tested release medium, which was confirmed by UV/VIS spectroscopy. The obtained results provided framework for further development of floating drug delivery system using an environmental friendly process.
T2  - Journal of Polymer Research
T1  - Preparation of floating polymer-valsartan delivery systems using supercritical CO2
IS  - 3
VL  - 28
DO  - 10.1007/s10965-021-02440-1
ER  - 

@article{
author = "Milovanović, Stoja and Djuris, Jelena and Dapčević, Aleksandra and Lučić-Škorić, Marija and Medarevic, Đorđe and Pavlovic, Stefan M. and Ibric, Svetlana",
year = "2021",
abstract = "This study investigates pharmaceutical polymers (Soluplus((R)), HPMCAS, and Eudragit((R)) E100) and supercritical CO2-assisted process for preparation of floating valsartan delivery systems. Tested process (at pressure of 30 MPa and temperature of 100 degrees C during 2 h) enabled preparation of stable porous valsartan formulations which was confirmed with FESEM and mercury intrusion porosimetry analysis. The bulk density of obtained formulations was lower than 550 kg/m(3). FTIR, DSC, and PXRD analysis indicated that there was no chemical interaction between the drug and polymers and that amorphous solid dispersions were obtained. Formulations with Soluplus((R)) and HPMCAS retained its buoyancy in 0.1 M HCl for longer than 24 h, while formulation with Eudragit((R)) E100 retained its buoyancy up to 2 h. Controlled valsartan release was influenced by solubility of polymers in the tested release medium, which was confirmed by UV/VIS spectroscopy. The obtained results provided framework for further development of floating drug delivery system using an environmental friendly process.",
journal = "Journal of Polymer Research",
title = "Preparation of floating polymer-valsartan delivery systems using supercritical CO2",
number = "3",
volume = "28",
doi = "10.1007/s10965-021-02440-1"
}

Milovanović, S., Djuris, J., Dapčević, A., Lučić-Škorić, M., Medarevic, Đ., Pavlovic, S. M.,& Ibric, S.. (2021). Preparation of floating polymer-valsartan delivery systems using supercritical CO2. in Journal of Polymer Research, 28(3).
https://doi.org/10.1007/s10965-021-02440-1

Milovanović S, Djuris J, Dapčević A, Lučić-Škorić M, Medarevic Đ, Pavlovic SM, Ibric S. Preparation of floating polymer-valsartan delivery systems using supercritical CO2. in Journal of Polymer Research. 2021;28(3).
doi:10.1007/s10965-021-02440-1 .

Milovanović, Stoja, Djuris, Jelena, Dapčević, Aleksandra, Lučić-Škorić, Marija, Medarevic, Đorđe, Pavlovic, Stefan M., Ibric, Svetlana, "Preparation of floating polymer-valsartan delivery systems using supercritical CO2" in Journal of Polymer Research, 28, no. 3 (2021),
https://doi.org/10.1007/s10965-021-02440-1 . .

TY  - CONF
AU  - Milošević, Ksenija
AU  - Janjić, Ognjen
AU  - Lučić-Škorić, Marija
AU  - Kalagasidis Krušić, Melina
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4189
AB  - Textile industry wastewater represents a serious environmental problem because it contains different dyes and toxic substances used during the production and dyeing of textile. Thus, it is necessary to investigate the removal of dyes from wastewater using a simple method such as sorption. Since different salts are used during the dyeing of textile, anions and cations are present in wastewaters and they can affect the process of dye removal. In this paper, the influence of several anions on the removal of textile dyes was investigated. Chitosan and methacrylic acid-based hydrogels obtained by free-radical polymerization and cross-linked with N,N'-methylenebisacrylamide were used as sorbents. Removal of two textile dyes was investigated (anionic dye C.I. Acid Orange 7 and cationic dye C.I. Basic Red 1) at two different temperatures (25 and 50 ° C). The influence of anions on the removal was evaluated using sodium compounds dissolved in dye solutions (NaCl, CH3COONa, Na2CO3, Na2HPO4, NaH2PO4, NaNO3, NaOH). It has been found that hydrogel degree of swelling increased significantly with the increase of pH of the dye solution. The presence of different ions affected the sorption capacity of hydrogels and the best results were obtained when NaH2PO4 and NaNO3 were present.
AB  - Otpadne vode tekstilne industrije predstavljaju ozbiljan ekološki problem, jer u sebi sadrže različite boje i toksične supstance koje se upotrebljavaju tokom proizvodnje i bojenja tekstila. Stoga, potrebno je da se ispita mogućnost uklanjanja boja iz otpadnih voda tekstilne industrije jednostavnom metodom sorpcije. Kako se u procesu bojenja tekstila koriste različite soli, u ovim otpadnim vodama često su prisutni anjoni i katjoni koji mogu da utiču na sam proces uklanjanja boja. U ovom radu analiziran je uticaj nekoliko anjona na uklanjanje boja za tekstil pomoću hidrogelova na bazi hitozana. Korišćeni hidrogelovi su kopolimeri hitozana i metakrilne kiseline dobijeni slobodno-radikalskom polimerizacijom, a kao umreživač je upotrebljen N,N’-metilenbisakrilamid. Anjonska boja C.I. Acid Orange 7 i katjonska boja C.I. Basic Red 1 su korišćene u model vodama, a uklanjanje boja je izvedeno na dve različite temperature (25 i 50 C). Uticaj anjona je ispitan dodatkom natrijumovih jedinjenja u rastvore boja (NaCl, CH3COONa, Na2CO3, Na2HPO4, NaH2PO4, NaNO3, NaOH). Utvrđeno je da hidrogelovi izrazito bubre sa povećanjem pH rastvora. Prisustvo različitih jona utiče na kapacitet sorpcije, a najbolji rezultati su dobijeni kada su u rastvoru prisutne soli NaH2PO4 i NaNO3.
PB  - Serbian Chemical Society, Belgrade
C3  - 56th Meeting of the Serbian chemical Society - Book of Abstracts
T1  - The effect of anions on the removal of dyes from textile industry wastewater
T1  - Uticaj anjona na uklanjanje boja iz otpadnih voda tekstilne industrije
SP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4189
ER  - 

@conference{
author = "Milošević, Ksenija and Janjić, Ognjen and Lučić-Škorić, Marija and Kalagasidis Krušić, Melina",
year = "2019",
abstract = "Textile industry wastewater represents a serious environmental problem because it contains different dyes and toxic substances used during the production and dyeing of textile. Thus, it is necessary to investigate the removal of dyes from wastewater using a simple method such as sorption. Since different salts are used during the dyeing of textile, anions and cations are present in wastewaters and they can affect the process of dye removal. In this paper, the influence of several anions on the removal of textile dyes was investigated. Chitosan and methacrylic acid-based hydrogels obtained by free-radical polymerization and cross-linked with N,N'-methylenebisacrylamide were used as sorbents. Removal of two textile dyes was investigated (anionic dye C.I. Acid Orange 7 and cationic dye C.I. Basic Red 1) at two different temperatures (25 and 50 ° C). The influence of anions on the removal was evaluated using sodium compounds dissolved in dye solutions (NaCl, CH3COONa, Na2CO3, Na2HPO4, NaH2PO4, NaNO3, NaOH). It has been found that hydrogel degree of swelling increased significantly with the increase of pH of the dye solution. The presence of different ions affected the sorption capacity of hydrogels and the best results were obtained when NaH2PO4 and NaNO3 were present., Otpadne vode tekstilne industrije predstavljaju ozbiljan ekološki problem, jer u sebi sadrže različite boje i toksične supstance koje se upotrebljavaju tokom proizvodnje i bojenja tekstila. Stoga, potrebno je da se ispita mogućnost uklanjanja boja iz otpadnih voda tekstilne industrije jednostavnom metodom sorpcije. Kako se u procesu bojenja tekstila koriste različite soli, u ovim otpadnim vodama često su prisutni anjoni i katjoni koji mogu da utiču na sam proces uklanjanja boja. U ovom radu analiziran je uticaj nekoliko anjona na uklanjanje boja za tekstil pomoću hidrogelova na bazi hitozana. Korišćeni hidrogelovi su kopolimeri hitozana i metakrilne kiseline dobijeni slobodno-radikalskom polimerizacijom, a kao umreživač je upotrebljen N,N’-metilenbisakrilamid. Anjonska boja C.I. Acid Orange 7 i katjonska boja C.I. Basic Red 1 su korišćene u model vodama, a uklanjanje boja je izvedeno na dve različite temperature (25 i 50 C). Uticaj anjona je ispitan dodatkom natrijumovih jedinjenja u rastvore boja (NaCl, CH3COONa, Na2CO3, Na2HPO4, NaH2PO4, NaNO3, NaOH). Utvrđeno je da hidrogelovi izrazito bubre sa povećanjem pH rastvora. Prisustvo različitih jona utiče na kapacitet sorpcije, a najbolji rezultati su dobijeni kada su u rastvoru prisutne soli NaH2PO4 i NaNO3.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "56th Meeting of the Serbian chemical Society - Book of Abstracts",
title = "The effect of anions on the removal of dyes from textile industry wastewater, Uticaj anjona na uklanjanje boja iz otpadnih voda tekstilne industrije",
pages = "76",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4189"
}

Milošević, K., Janjić, O., Lučić-Škorić, M.,& Kalagasidis Krušić, M.. (2019). The effect of anions on the removal of dyes from textile industry wastewater. in 56th Meeting of the Serbian chemical Society - Book of Abstracts
Serbian Chemical Society, Belgrade., 76.
https://hdl.handle.net/21.15107/rcub_technorep_4189

Milošević K, Janjić O, Lučić-Škorić M, Kalagasidis Krušić M. The effect of anions on the removal of dyes from textile industry wastewater. in 56th Meeting of the Serbian chemical Society - Book of Abstracts. 2019;:76.
https://hdl.handle.net/21.15107/rcub_technorep_4189 .

Milošević, Ksenija, Janjić, Ognjen, Lučić-Škorić, Marija, Kalagasidis Krušić, Melina, "The effect of anions on the removal of dyes from textile industry wastewater" in 56th Meeting of the Serbian chemical Society - Book of Abstracts (2019):76,
https://hdl.handle.net/21.15107/rcub_technorep_4189 .

TY  - JOUR
AU  - Lučić-Škorić, Marija
AU  - Stanojković, Lazar S.
AU  - Milosavljević, Nedeljko
AU  - Kalagasidis Krušić, Melina
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3816
AB  - With the excessive risks that are present in today's environment, it is of great importance to treat wastewaters before their discharge in water streams. One of the everyday challenges is design of a low-cost and environmentally friendly sorbent such as hydrogel based on chitosan, itaconic and methacrylic acid that can remove wide range of textile dyes. In the present study, this hydrogel has been utilized for investigation of removal of three different azo dyes from simulated textile wastewater: C.I. Basic Blue 9, C.I. Basic Red 1 and C.I. Acid Orange 7. It was found that pH value of the solution had significant effect on dye sorption. Removal of basic dyes was successful at higher pH values, while sorption of acid dye was possible only at low pH value of solution. Simulated textile wastewater is a complex system with various salts, acids and polymers present beside dyes. Regardless of these components, excellent sorption capacity was achieved (more than 80% of dyes were removed), which makes this hydrogel attractive for use under real conditions.
AB  - Zbog sve više rizika koji se javljaju po životnu sredinu, veoma je važno prečistiti otpadne vode pre njihovog ispuštanja u vodotokove. Zato je jedan od izazova današnjih istraživanja dizajn jeftinog i ekološki prihvatljivog sorbenta, kao što je hidrogel na bazi hitozana, itakonske i metakrilne kiseline, koji može da ukloni širok spektar tekstilnih boja. U ovom radu je korišćen hidrogel za ispitivanje uklanjanja tri različite azo boje iz simulirane otpadne vode iz tekstilne industrije: C.I. Basic Blue 9, C.I. Basic Red 1 i C.I. Acid Orange 7. Utvrđeno je da pH vrednost rastvora značajno utiče na sorpciju boja. Uklanjanje baznih boja je uspešno pri višim pH vrednostima, dok je sorpcija kisele boje moguća samo pri niskoj pH vrednosti rastvora. Simulirana otpadna voda iztekstilne industrije je složen sistem sačinjen od različith soli, kiselina i polimera koji su prisutni pored boja za tekstil. Bez obzira na ove komponente, ostvaren je odličan kapacitet sorpcije (uklonjeno je više od 80% boje iz rastvora), što ovaj hidrogel čini atraktivnim za upotrebu u realnim sistemima.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Sorption of textile dyes from textile wastewater by chitosan-based hydrogel
T1  - Sorpcija boja za tekstil iz tekstilnih otpadnih voda pomoću hidrogela na bazi hitozana
EP  - 18
IS  - 1
SP  - 11
VL  - 73
DO  - 10.5937/tehnika1801009L
ER  - 

@article{
author = "Lučić-Škorić, Marija and Stanojković, Lazar S. and Milosavljević, Nedeljko and Kalagasidis Krušić, Melina",
year = "2018",
abstract = "With the excessive risks that are present in today's environment, it is of great importance to treat wastewaters before their discharge in water streams. One of the everyday challenges is design of a low-cost and environmentally friendly sorbent such as hydrogel based on chitosan, itaconic and methacrylic acid that can remove wide range of textile dyes. In the present study, this hydrogel has been utilized for investigation of removal of three different azo dyes from simulated textile wastewater: C.I. Basic Blue 9, C.I. Basic Red 1 and C.I. Acid Orange 7. It was found that pH value of the solution had significant effect on dye sorption. Removal of basic dyes was successful at higher pH values, while sorption of acid dye was possible only at low pH value of solution. Simulated textile wastewater is a complex system with various salts, acids and polymers present beside dyes. Regardless of these components, excellent sorption capacity was achieved (more than 80% of dyes were removed), which makes this hydrogel attractive for use under real conditions., Zbog sve više rizika koji se javljaju po životnu sredinu, veoma je važno prečistiti otpadne vode pre njihovog ispuštanja u vodotokove. Zato je jedan od izazova današnjih istraživanja dizajn jeftinog i ekološki prihvatljivog sorbenta, kao što je hidrogel na bazi hitozana, itakonske i metakrilne kiseline, koji može da ukloni širok spektar tekstilnih boja. U ovom radu je korišćen hidrogel za ispitivanje uklanjanja tri različite azo boje iz simulirane otpadne vode iz tekstilne industrije: C.I. Basic Blue 9, C.I. Basic Red 1 i C.I. Acid Orange 7. Utvrđeno je da pH vrednost rastvora značajno utiče na sorpciju boja. Uklanjanje baznih boja je uspešno pri višim pH vrednostima, dok je sorpcija kisele boje moguća samo pri niskoj pH vrednosti rastvora. Simulirana otpadna voda iztekstilne industrije je složen sistem sačinjen od različith soli, kiselina i polimera koji su prisutni pored boja za tekstil. Bez obzira na ove komponente, ostvaren je odličan kapacitet sorpcije (uklonjeno je više od 80% boje iz rastvora), što ovaj hidrogel čini atraktivnim za upotrebu u realnim sistemima.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Sorption of textile dyes from textile wastewater by chitosan-based hydrogel, Sorpcija boja za tekstil iz tekstilnih otpadnih voda pomoću hidrogela na bazi hitozana",
pages = "18-11",
number = "1",
volume = "73",
doi = "10.5937/tehnika1801009L"
}

Lučić-Škorić, M., Stanojković, L. S., Milosavljević, N.,& Kalagasidis Krušić, M.. (2018). Sorption of textile dyes from textile wastewater by chitosan-based hydrogel. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 73(1), 11-18.
https://doi.org/10.5937/tehnika1801009L

Lučić-Škorić M, Stanojković LS, Milosavljević N, Kalagasidis Krušić M. Sorption of textile dyes from textile wastewater by chitosan-based hydrogel. in Tehnika. 2018;73(1):11-18.
doi:10.5937/tehnika1801009L .

Lučić-Škorić, Marija, Stanojković, Lazar S., Milosavljević, Nedeljko, Kalagasidis Krušić, Melina, "Sorption of textile dyes from textile wastewater by chitosan-based hydrogel" in Tehnika, 73, no. 1 (2018):11-18,
https://doi.org/10.5937/tehnika1801009L . .

TY  - JOUR
AU  - Terzić, Ivan
AU  - Ivanović, Jasna
AU  - Žižović, Irena
AU  - Lučić-Škorić, Marija
AU  - Milosavljević, Nedeljko
AU  - Milašinović, Nikola
AU  - Kalagasidis Krušić, Melina
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3946
AB  - Supercritical carbon dioxide (scCO(2)) technology was used for preparation of functional pH sensitive chitosan-based aerogels characterized with micron size pores and their impregnation with thymol as a natural bioactive substance. Hydrogels based on chitosan, itaconic and methacrylic acids were transformed to alcogels and dried in the air or with scCO(2) to obtain xero- and aerogels, respectively. Applying 10 min of static and 120 min of dynamic scCO(2) drying at 11 MPa and 45 degrees C followed with the decompression at a rate of 1 MPa/min yielded an advantageous aerogel with favorable swelling kinetics and elasticity, compared to the xerogel and aerogels obtained at other decompression rates and drying times. This aerogel was successfully loaded with thymol (up to 4.6 wt.%) using supercritical scCO(2) at 10 MPa and 35 degrees C. In vitro studies of swelling in PBS at 37 degrees C indicated a great potential of the obtained stimuli-responsive chitosan gels for topical administration of thymol known for antimicrobial, antioxidant and anti-inflammatory activities. POLYM. ENG. SCI., 58:2192-2199, 2018.
PB  - Wiley, Hoboken
T2  - Polymer Engineering and Science
T1  - A novel chitosan gels: Supercritical CO2 drying and impregnation with thymol
EP  - 2199
IS  - 12
SP  - 2192
VL  - 58
DO  - 10.1002/pen.24834
ER  - 

@article{
author = "Terzić, Ivan and Ivanović, Jasna and Žižović, Irena and Lučić-Škorić, Marija and Milosavljević, Nedeljko and Milašinović, Nikola and Kalagasidis Krušić, Melina",
year = "2018",
abstract = "Supercritical carbon dioxide (scCO(2)) technology was used for preparation of functional pH sensitive chitosan-based aerogels characterized with micron size pores and their impregnation with thymol as a natural bioactive substance. Hydrogels based on chitosan, itaconic and methacrylic acids were transformed to alcogels and dried in the air or with scCO(2) to obtain xero- and aerogels, respectively. Applying 10 min of static and 120 min of dynamic scCO(2) drying at 11 MPa and 45 degrees C followed with the decompression at a rate of 1 MPa/min yielded an advantageous aerogel with favorable swelling kinetics and elasticity, compared to the xerogel and aerogels obtained at other decompression rates and drying times. This aerogel was successfully loaded with thymol (up to 4.6 wt.%) using supercritical scCO(2) at 10 MPa and 35 degrees C. In vitro studies of swelling in PBS at 37 degrees C indicated a great potential of the obtained stimuli-responsive chitosan gels for topical administration of thymol known for antimicrobial, antioxidant and anti-inflammatory activities. POLYM. ENG. SCI., 58:2192-2199, 2018.",
publisher = "Wiley, Hoboken",
journal = "Polymer Engineering and Science",
title = "A novel chitosan gels: Supercritical CO2 drying and impregnation with thymol",
pages = "2199-2192",
number = "12",
volume = "58",
doi = "10.1002/pen.24834"
}

Terzić, I., Ivanović, J., Žižović, I., Lučić-Škorić, M., Milosavljević, N., Milašinović, N.,& Kalagasidis Krušić, M.. (2018). A novel chitosan gels: Supercritical CO2 drying and impregnation with thymol. in Polymer Engineering and Science
Wiley, Hoboken., 58(12), 2192-2199.
https://doi.org/10.1002/pen.24834

Terzić I, Ivanović J, Žižović I, Lučić-Škorić M, Milosavljević N, Milašinović N, Kalagasidis Krušić M. A novel chitosan gels: Supercritical CO2 drying and impregnation with thymol. in Polymer Engineering and Science. 2018;58(12):2192-2199.
doi:10.1002/pen.24834 .

Terzić, Ivan, Ivanović, Jasna, Žižović, Irena, Lučić-Škorić, Marija, Milosavljević, Nedeljko, Milašinović, Nikola, Kalagasidis Krušić, Melina, "A novel chitosan gels: Supercritical CO2 drying and impregnation with thymol" in Polymer Engineering and Science, 58, no. 12 (2018):2192-2199,
https://doi.org/10.1002/pen.24834 . .

TY  - JOUR
AU  - Šešlija, Sanja
AU  - Nešić, Aleksandra
AU  - Lučić-Škorić, Marija
AU  - Kalagasidis Krušić, Melina
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4038
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 (Ca2+ 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 permeability values are in the range of 1.32x10(-7) up to 2.03x10(-7) wg/m h Pa.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Macromolecular Symposia
T1  - Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material
IS  - 1
VL  - 378
DO  - 10.1002/masy.201600163
ER  - 

@article{
author = "Šešlija, Sanja and Nešić, Aleksandra and Lučić-Škorić, Marija and Kalagasidis 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 (Ca2+ 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 permeability values are in the range of 1.32x10(-7) up to 2.03x10(-7) wg/m h Pa.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Macromolecular Symposia",
title = "Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material",
number = "1",
volume = "378",
doi = "10.1002/masy.201600163"
}

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

Šešlija S, Nešić A, Lučić-Škorić M, Kalagasidis 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, Lučić-Škorić, Marija, Kalagasidis 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  - CONF
AU  - Arsić, Sofija
AU  - Borjan, Dragana
AU  - Lučić-Škorić, Marija
AU  - Alil, Ana
AU  - Kalagasidis Krušić, Melina
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6108
AB  - Poslednjih godina sve više pažnje se posvećuje spajanju legura aluminijuma i drugih metalnih
materijala lepljenjem pomoću odgovarajućih adheziva. Time se obezbeđuje spajanje metala u
slučajevima kada uobičajeni postupci zavarivanja nisu mogući. Na tržištu postoji veliki broj
različitih adheziva za čiju izradu se koriste komponente dobijene iz petrohemijskih izvora koje su
štetne po zdravlje ljudi i životnu sredinu. Zbog toga je trend u industriji adheziva da se ove
komponente delimično ili u potpunosti zamene netoksičnim materijalima dobijenim iz obnovljivih
izvora, a da se pri tome zadrži efikasnost adheziva.
U radu je ispitana mogućnost izrade adheziva za spajanje metala u kome je komercijalna epoksidna
smola potpuno ili delimično zamenjena sa prirodnim polimerima, hitozanom i/ili natrijumalginatom. Oko 40 mas.% epoksidne smole je uspešno zamenjeno prirodnim polimerima pri čemu
postignuta jačina adhezije odgovara željenoj vrednosti (4-5 MPa), a u pojedinim slučajevima je i
veća u odnosu na komercijalnu epoksidnu smolu. Optimalni uslovi za postizanje ove vrednosti su
70 C i 24 h. Uočeno je da je tretman površine neposredno pre lepljenja veoma bitan i da ima veliki
uticaj na efikasnost lepljenja, kao i da prisustvo vode smanjuje jačinu adhezije. Pomoću adheziva
kod kojih je 25 mas.% epoksi smole zamenjeno prirodnim polimerima uspešno su zalepljeni delovi
trkačkog vozila koji su napravili članovi studentskog tima „Drumska Strela” za međunarodno
takmičenje Formula student.
PB  - Srpsko hemijsko društvo, Beograd
C3  - 54. Savetovanje srpskog hemijskog društva
T1  - Metal-bonding by bio-based adhesives
EP  - 148
SP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6108
ER  - 

@conference{
author = "Arsić, Sofija and Borjan, Dragana and Lučić-Škorić, Marija and Alil, Ana and Kalagasidis Krušić, Melina",
year = "2017",
abstract = "Poslednjih godina sve više pažnje se posvećuje spajanju legura aluminijuma i drugih metalnih
materijala lepljenjem pomoću odgovarajućih adheziva. Time se obezbeđuje spajanje metala u
slučajevima kada uobičajeni postupci zavarivanja nisu mogući. Na tržištu postoji veliki broj
različitih adheziva za čiju izradu se koriste komponente dobijene iz petrohemijskih izvora koje su
štetne po zdravlje ljudi i životnu sredinu. Zbog toga je trend u industriji adheziva da se ove
komponente delimično ili u potpunosti zamene netoksičnim materijalima dobijenim iz obnovljivih
izvora, a da se pri tome zadrži efikasnost adheziva.
U radu je ispitana mogućnost izrade adheziva za spajanje metala u kome je komercijalna epoksidna
smola potpuno ili delimično zamenjena sa prirodnim polimerima, hitozanom i/ili natrijumalginatom. Oko 40 mas.% epoksidne smole je uspešno zamenjeno prirodnim polimerima pri čemu
postignuta jačina adhezije odgovara željenoj vrednosti (4-5 MPa), a u pojedinim slučajevima je i
veća u odnosu na komercijalnu epoksidnu smolu. Optimalni uslovi za postizanje ove vrednosti su
70 C i 24 h. Uočeno je da je tretman površine neposredno pre lepljenja veoma bitan i da ima veliki
uticaj na efikasnost lepljenja, kao i da prisustvo vode smanjuje jačinu adhezije. Pomoću adheziva
kod kojih je 25 mas.% epoksi smole zamenjeno prirodnim polimerima uspešno su zalepljeni delovi
trkačkog vozila koji su napravili članovi studentskog tima „Drumska Strela” za međunarodno
takmičenje Formula student.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "54. Savetovanje srpskog hemijskog društva",
title = "Metal-bonding by bio-based adhesives",
pages = "148-144",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6108"
}

Arsić, S., Borjan, D., Lučić-Škorić, M., Alil, A.,& Kalagasidis Krušić, M.. (2017). Metal-bonding by bio-based adhesives. in 54. Savetovanje srpskog hemijskog društva
Srpsko hemijsko društvo, Beograd., 144-148.
https://hdl.handle.net/21.15107/rcub_technorep_6108

Arsić S, Borjan D, Lučić-Škorić M, Alil A, Kalagasidis Krušić M. Metal-bonding by bio-based adhesives. in 54. Savetovanje srpskog hemijskog društva. 2017;:144-148.
https://hdl.handle.net/21.15107/rcub_technorep_6108 .

Arsić, Sofija, Borjan, Dragana, Lučić-Škorić, Marija, Alil, Ana, Kalagasidis Krušić, Melina, "Metal-bonding by bio-based adhesives" in 54. Savetovanje srpskog hemijskog društva (2017):144-148,
https://hdl.handle.net/21.15107/rcub_technorep_6108 .

TY  - JOUR
AU  - Milovanović, Stoja
AU  - Kuska, Robert
AU  - Lučić-Škorić, Marija
AU  - Kalagasidis Krušić, Melina
AU  - Frerich, Sulamith
AU  - Žižović, Irena
AU  - Ivanović, Jasna
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3219
AB  - The present work was aimed to study swelling kinetics of polylactic acid (PLA) and its impregnation with thymol in supercritical carbon dioxide (scCO2) medium. The influences of temperature and soaking time on the swelling kinetics and impregnation yield of PLA cylindrical disc and film were investigated. Swelling experiments were performed in a high pressure view cell at 10 MPa and temperatures of 40°C, 60°C and 75°C for 2 to 24 h. On the basis of swelling kinetics, pressure of 10 MPa and temperature of 40°C were chosen for supercritical solvent impregnation (SSI) of the PLA samples during 2 to24 h. The highest swelling extent was observed for the PLA monolith after 24 h treatment with pure scCO2 (7.5%) and scCO2 with thymol (118.3%). It was shown that sufficiently high amount of thymol can be loaded into both PLA monolith and film using SSI after only 2 h (10.0% and 6.6%, respectively). Monolith and film of PLA impregnated with thymol could be suitable for active food packaging and sterile medical disposables.
AB  - Prikazana studija je namenjena ispitivanju kinetike bubrenja polilaktida (PLA) i njegovoj impregnaciji timolom u natkritičnom ugljenik(IV)-oksidu (nkCO2). Praćen je uticaj temperature i operativnog vremena na kinetiku bubrenja i prinos impregnacije PLA cilindričnog diska i filma. Eksperimenti bubrenja su izvedeni u ćeliji za rad pod visokim pritiscima na 10 MPa and 40°C, 60°C i 75°C od 2 h do 24 h. Na osnovu kinetike bubrenja, natkritična impregnacija uzoraka PLA timolom je izvedena na pritisku od 10 MPa i temperaturi od 40°C tokom 2 do 24 h. Najveći stepen bubrenja je imao PLA disk na 10 MPa i 40°C nakon 24 h (7,5%) u sistemu sa čistim nkCO2 i u sistemu sa timolom (118,3%). Pokazano je da se dovoljno visok prinos impregnacije timola može postići nakon 2 h (10,0% za disk i 6,6% za film). PLA u formi diska i filma impregnirani timolom su pogodni materijali za aktivno pakovanje hrane i za sterilni medicinski pribor.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Swelling kinetics and impregnation of PLA with thymol under supercritical CO2 conditions
T1  - Kinetika bubrenja PLA i njegova impregnacija timolom upotrebom natkritičnog uglenik(IV)-oksida
EP  - 20
IS  - 1
SP  - 16
VL  - 71
DO  - 10.5937/tehnika1601016M
ER  - 

@article{
author = "Milovanović, Stoja and Kuska, Robert and Lučić-Škorić, Marija and Kalagasidis Krušić, Melina and Frerich, Sulamith and Žižović, Irena and Ivanović, Jasna",
year = "2016",
abstract = "The present work was aimed to study swelling kinetics of polylactic acid (PLA) and its impregnation with thymol in supercritical carbon dioxide (scCO2) medium. The influences of temperature and soaking time on the swelling kinetics and impregnation yield of PLA cylindrical disc and film were investigated. Swelling experiments were performed in a high pressure view cell at 10 MPa and temperatures of 40°C, 60°C and 75°C for 2 to 24 h. On the basis of swelling kinetics, pressure of 10 MPa and temperature of 40°C were chosen for supercritical solvent impregnation (SSI) of the PLA samples during 2 to24 h. The highest swelling extent was observed for the PLA monolith after 24 h treatment with pure scCO2 (7.5%) and scCO2 with thymol (118.3%). It was shown that sufficiently high amount of thymol can be loaded into both PLA monolith and film using SSI after only 2 h (10.0% and 6.6%, respectively). Monolith and film of PLA impregnated with thymol could be suitable for active food packaging and sterile medical disposables., Prikazana studija je namenjena ispitivanju kinetike bubrenja polilaktida (PLA) i njegovoj impregnaciji timolom u natkritičnom ugljenik(IV)-oksidu (nkCO2). Praćen je uticaj temperature i operativnog vremena na kinetiku bubrenja i prinos impregnacije PLA cilindričnog diska i filma. Eksperimenti bubrenja su izvedeni u ćeliji za rad pod visokim pritiscima na 10 MPa and 40°C, 60°C i 75°C od 2 h do 24 h. Na osnovu kinetike bubrenja, natkritična impregnacija uzoraka PLA timolom je izvedena na pritisku od 10 MPa i temperaturi od 40°C tokom 2 do 24 h. Najveći stepen bubrenja je imao PLA disk na 10 MPa i 40°C nakon 24 h (7,5%) u sistemu sa čistim nkCO2 i u sistemu sa timolom (118,3%). Pokazano je da se dovoljno visok prinos impregnacije timola može postići nakon 2 h (10,0% za disk i 6,6% za film). PLA u formi diska i filma impregnirani timolom su pogodni materijali za aktivno pakovanje hrane i za sterilni medicinski pribor.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Swelling kinetics and impregnation of PLA with thymol under supercritical CO2 conditions, Kinetika bubrenja PLA i njegova impregnacija timolom upotrebom natkritičnog uglenik(IV)-oksida",
pages = "20-16",
number = "1",
volume = "71",
doi = "10.5937/tehnika1601016M"
}

Milovanović, S., Kuska, R., Lučić-Škorić, M., Kalagasidis Krušić, M., Frerich, S., Žižović, I.,& Ivanović, J.. (2016). Swelling kinetics and impregnation of PLA with thymol under supercritical CO2 conditions. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 71(1), 16-20.
https://doi.org/10.5937/tehnika1601016M

Milovanović S, Kuska R, Lučić-Škorić M, Kalagasidis Krušić M, Frerich S, Žižović I, Ivanović J. Swelling kinetics and impregnation of PLA with thymol under supercritical CO2 conditions. in Tehnika. 2016;71(1):16-20.
doi:10.5937/tehnika1601016M .

Milovanović, Stoja, Kuska, Robert, Lučić-Škorić, Marija, Kalagasidis Krušić, Melina, Frerich, Sulamith, Žižović, Irena, Ivanović, Jasna, "Swelling kinetics and impregnation of PLA with thymol under supercritical CO2 conditions" in Tehnika, 71, no. 1 (2016):16-20,
https://doi.org/10.5937/tehnika1601016M . .

TY  - JOUR
AU  - Lučić-Škorić, Marija
AU  - Terzić, Ivan
AU  - Milosavljević, Nedeljko
AU  - Radetić, Maja
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3342
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.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - European Polymer Journal
T1  - Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes
EP  - 70
SP  - 57
VL  - 82
DO  - 10.1016/j.eurpolymj.2016.06.026
ER  - 

@article{
author = "Lučić-Škorić, Marija and Terzić, Ivan and Milosavljević, Nedeljko and Radetić, Maja 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.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes",
pages = "70-57",
volume = "82",
doi = "10.1016/j.eurpolymj.2016.06.026"
}

Lučić-Škorić, M., Terzić, I., Milosavljević, N., Radetić, 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
Pergamon-Elsevier Science Ltd, Oxford., 82, 57-70.
https://doi.org/10.1016/j.eurpolymj.2016.06.026

Lučić-Škorić M, Terzić I, Milosavljević N, Radetić M, 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, Milosavljević, Nedeljko, Radetić, Maja, 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  - THES
AU  - Lučić-Škorić, Marija
PY  - 2016
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=4572
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:14667/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48676879
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4647
AB  - The aim of this Ph.D. thesis was to investigate the possibility of immobilization of titanium dioxide (TiO2) nanoparticles onto/into hydrogels as carriers, as well as the photodegradation of textile dyes from aqueous solutions by titanium dioxide/hydrogel nanocomposites that could be exploited for treatment of textile effluents. Two types of TiO2 nanoparticles were used: (a) freshly synthetized colloidal TiO2 nanoparticles, prepared by acid hydrolysis of titanium tetrachloride; (b) commercially available TiO2 nanoparticles (Degussa P25), which were used for comparison of photocatalytic activity. The following hydrogels have been synthetized as a carriers for TiO2 nanoparticles: (a) chitosan, itaconic acid and methacrylic acid hydrogels synthesized by free radical polymerization; (b) chitosan and poly(methacrylic acid) microparticles (Ch/PMA), which were synthesized for the first time by inverse suspension polymerization; (c) sodium alginate and partially neutralized poly(methacrylic acid) interpenetrating polymer networks (IPN) obtained by free radical polymerization followed by additional cross-linking of sodium alginate with calcium ions. TiO2/hydrogel nanocomposites were obtained by immobilization of TiO2 nanoparticles onto/into hydrogels, which were afterwards characterized and their photocatalytic activity was tested. The presence of TiO2 nanoparticles onto/into hydrogels was confirmed by energy dispersive spectroscopy (EDX). The porous structure of the chitosan-based hydrogels and sodium alginate-based interpenetrating networks was observed by SEM analysis. Swelling experiments and rheological studies showed that the pore size, swelling kinetics and mechanical strength depend on the hydrogel composition, degree of crosslinking, presence of TiO2 nanoparticles and the type of immobilized TiO2 nanoparticles. SEM analysis and optical microscopy revealed that chitosan microparticles have a spherical structure. Infrared spectroscopy with Fourier transformation (FTIR) showed that all components present during hydrogel synthesis were incorporated into the polymer network. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) demonstrated that the prepared samples had good thermal stability...
AB  - Cilj ove doktorske disertacije je da se ispitaju mogućnosti imobilizacije nanočestica titan-dioksida (TiO2) na hidrogelove kao nosače i fotodegradacija boja za tekstil iz vodenih rastvora pomoću titan-dioksid/hidrogel nanokompozita za potrebe prečišćavanja otpadnih voda iz tekstilne industrije. U radu su korišćene dve vrste TiO2 nanočestica: (a) sintetisane koloidne nanočestice TiO2, dobijene kiselom hidrolizom titan-tetrahlorida; (b) komercijalno dostupne nanočestice TiO2 (Degussa P25), radi poređenja fotokatalitičke aktivnosti. Kao nosači nanočestica TiO2 pripremljeni su sledeći hidrogelovi: (a) hidrogelovi hitozana, itakonske kiseline i metakrilne kiseline sintetisani radikalnom polimerizacijom; (b) mikročestice hitozana i poli(metakrilne kiseline), po prvi put sintetisane inverznom suspenzionom polimerizacijom; (c) interpenetrirajuće mreže (IPM) natrijum-alginata i delimično neutralisane poli(metakrilne kiseline) dobijene radikalnom polimerizacijom i naknadnim umrežavanjem jonima kalcijuma. Imobilizacijom nanočestica titan-dioksida na hidrogelove dobijeni su TiO2/hidrogel nanokompoziti, koji su okarakterisani i ispitana je njihova fotokatalitička aktivnost. Prisustvo nanočestica TiO2 na/u hidrogelovima je potvrđeno energetskom disperzionom spektroskopijom (EDX). Skenirajuća elektronska mikroskopija (SEM) je pokazala da hidrogelovi hitozana i interpenetrirajuće mreže natrijum-alginata imaju poroznu strukturu. Eksperimentima bubrenja i reološkim ispitivanjima je potvrđeno da veličina pora, kinetika bubrenja i mehanička jačina zavise od sastava hidrogelova, stepena umreženja, prisustva i vrste imobilisanih nanočestica TiO2. SEM analiza i optička mikroskopija su pokazale da mikročestice hitozana imaju sferičnu strukturu. Infracrvenom spektroskopijom sa Fourier-ovim transformacijama (FTIR) je utvrđeno da su u polimernu mrežu nosača ugrađene sve komponente prisutne tokom sinteze. Termogravimetrijskom analizom (TGA) i skenirajućom kalorimetrijom (DSC) je zaključeno da pripremljeni uzorci imaju dobru termičku stabilnost. Lampa koja simulira sunčevu svetlost je korišćena za fotoaktivaciju TiO2/hidrogel nanokompozita u procesu fotodegradacije sledećih boja za tekstil: kisele boje C.I. Acid Orange 7, C.I. Acid Red 18 i C.I. Acid Blue 113, reaktivne boje C.I. Reactive Yellow 17 i C.I. Reactive Black 5, direktna boja C.I. Direct Blue 78 i najčešće ispitivana test boja, bazna (katjonska) boja metilensko plavo. Uklanjanje boja iz vodenih rastvora praćeno je UV/Vis spektrofotometrom...
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Removal of textile dyes from water by photocatalytic degradation in the presence of titanium dioxide nanoparticles immobilized onto chitosan and alginate based hydrogels.
T1  - Uklanjanje boja za tekstil iz vode fotokatalitičkom degradacijom u prisustvu nanočestica titan-dioksida imobilisanih na hidrogelove hitozana i alginata
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4647
ER  - 

@phdthesis{
author = "Lučić-Škorić, Marija",
year = "2016",
abstract = "The aim of this Ph.D. thesis was to investigate the possibility of immobilization of titanium dioxide (TiO2) nanoparticles onto/into hydrogels as carriers, as well as the photodegradation of textile dyes from aqueous solutions by titanium dioxide/hydrogel nanocomposites that could be exploited for treatment of textile effluents. Two types of TiO2 nanoparticles were used: (a) freshly synthetized colloidal TiO2 nanoparticles, prepared by acid hydrolysis of titanium tetrachloride; (b) commercially available TiO2 nanoparticles (Degussa P25), which were used for comparison of photocatalytic activity. The following hydrogels have been synthetized as a carriers for TiO2 nanoparticles: (a) chitosan, itaconic acid and methacrylic acid hydrogels synthesized by free radical polymerization; (b) chitosan and poly(methacrylic acid) microparticles (Ch/PMA), which were synthesized for the first time by inverse suspension polymerization; (c) sodium alginate and partially neutralized poly(methacrylic acid) interpenetrating polymer networks (IPN) obtained by free radical polymerization followed by additional cross-linking of sodium alginate with calcium ions. TiO2/hydrogel nanocomposites were obtained by immobilization of TiO2 nanoparticles onto/into hydrogels, which were afterwards characterized and their photocatalytic activity was tested. The presence of TiO2 nanoparticles onto/into hydrogels was confirmed by energy dispersive spectroscopy (EDX). The porous structure of the chitosan-based hydrogels and sodium alginate-based interpenetrating networks was observed by SEM analysis. Swelling experiments and rheological studies showed that the pore size, swelling kinetics and mechanical strength depend on the hydrogel composition, degree of crosslinking, presence of TiO2 nanoparticles and the type of immobilized TiO2 nanoparticles. SEM analysis and optical microscopy revealed that chitosan microparticles have a spherical structure. Infrared spectroscopy with Fourier transformation (FTIR) showed that all components present during hydrogel synthesis were incorporated into the polymer network. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) demonstrated that the prepared samples had good thermal stability..., Cilj ove doktorske disertacije je da se ispitaju mogućnosti imobilizacije nanočestica titan-dioksida (TiO2) na hidrogelove kao nosače i fotodegradacija boja za tekstil iz vodenih rastvora pomoću titan-dioksid/hidrogel nanokompozita za potrebe prečišćavanja otpadnih voda iz tekstilne industrije. U radu su korišćene dve vrste TiO2 nanočestica: (a) sintetisane koloidne nanočestice TiO2, dobijene kiselom hidrolizom titan-tetrahlorida; (b) komercijalno dostupne nanočestice TiO2 (Degussa P25), radi poređenja fotokatalitičke aktivnosti. Kao nosači nanočestica TiO2 pripremljeni su sledeći hidrogelovi: (a) hidrogelovi hitozana, itakonske kiseline i metakrilne kiseline sintetisani radikalnom polimerizacijom; (b) mikročestice hitozana i poli(metakrilne kiseline), po prvi put sintetisane inverznom suspenzionom polimerizacijom; (c) interpenetrirajuće mreže (IPM) natrijum-alginata i delimično neutralisane poli(metakrilne kiseline) dobijene radikalnom polimerizacijom i naknadnim umrežavanjem jonima kalcijuma. Imobilizacijom nanočestica titan-dioksida na hidrogelove dobijeni su TiO2/hidrogel nanokompoziti, koji su okarakterisani i ispitana je njihova fotokatalitička aktivnost. Prisustvo nanočestica TiO2 na/u hidrogelovima je potvrđeno energetskom disperzionom spektroskopijom (EDX). Skenirajuća elektronska mikroskopija (SEM) je pokazala da hidrogelovi hitozana i interpenetrirajuće mreže natrijum-alginata imaju poroznu strukturu. Eksperimentima bubrenja i reološkim ispitivanjima je potvrđeno da veličina pora, kinetika bubrenja i mehanička jačina zavise od sastava hidrogelova, stepena umreženja, prisustva i vrste imobilisanih nanočestica TiO2. SEM analiza i optička mikroskopija su pokazale da mikročestice hitozana imaju sferičnu strukturu. Infracrvenom spektroskopijom sa Fourier-ovim transformacijama (FTIR) je utvrđeno da su u polimernu mrežu nosača ugrađene sve komponente prisutne tokom sinteze. Termogravimetrijskom analizom (TGA) i skenirajućom kalorimetrijom (DSC) je zaključeno da pripremljeni uzorci imaju dobru termičku stabilnost. Lampa koja simulira sunčevu svetlost je korišćena za fotoaktivaciju TiO2/hidrogel nanokompozita u procesu fotodegradacije sledećih boja za tekstil: kisele boje C.I. Acid Orange 7, C.I. Acid Red 18 i C.I. Acid Blue 113, reaktivne boje C.I. Reactive Yellow 17 i C.I. Reactive Black 5, direktna boja C.I. Direct Blue 78 i najčešće ispitivana test boja, bazna (katjonska) boja metilensko plavo. Uklanjanje boja iz vodenih rastvora praćeno je UV/Vis spektrofotometrom...",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Removal of textile dyes from water by photocatalytic degradation in the presence of titanium dioxide nanoparticles immobilized onto chitosan and alginate based hydrogels., Uklanjanje boja za tekstil iz vode fotokatalitičkom degradacijom u prisustvu nanočestica titan-dioksida imobilisanih na hidrogelove hitozana i alginata",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4647"
}

Lučić-Škorić, M.. (2016). Removal of textile dyes from water by photocatalytic degradation in the presence of titanium dioxide nanoparticles immobilized onto chitosan and alginate based hydrogels.. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_4647

Lučić-Škorić M. Removal of textile dyes from water by photocatalytic degradation in the presence of titanium dioxide nanoparticles immobilized onto chitosan and alginate based hydrogels.. 2016;.
https://hdl.handle.net/21.15107/rcub_technorep_4647 .

Lučić-Škorić, Marija, "Removal of textile dyes from water by photocatalytic degradation in the presence of titanium dioxide nanoparticles immobilized onto chitosan and alginate based hydrogels." (2016),
https://hdl.handle.net/21.15107/rcub_technorep_4647 .

TY  - JOUR
AU  - Lučić-Škorić, Marija
AU  - Milosavljević, Nedeljko
AU  - Radetić, Maja
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3133
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.
PB  - Wiley, Hoboken
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
EP  - 2518
IS  - 11
SP  - 2511
VL  - 55
DO  - 10.1002/pen.24141
ER  - 

@article{
author = "Lučić-Škorić, Marija and Milosavljević, Nedeljko and Radetić, Maja 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.",
publisher = "Wiley, Hoboken",
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",
pages = "2518-2511",
number = "11",
volume = "55",
doi = "10.1002/pen.24141"
}

Lučić-Škorić, M., Milosavljević, N., Radetić, 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
Wiley, Hoboken., 55(11), 2511-2518.
https://doi.org/10.1002/pen.24141

Lučić-Škorić M, Milosavljević N, Radetić M, 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, Milosavljević, Nedeljko, Radetić, Maja, 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  - Lučić, Marija
AU  - Milosavljević, Nedeljko
AU  - Radetić, Maja
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2761
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.
PB  - Elsevier, Amsterdam
T2  - Separation and Purification Technology
T1  - The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes
EP  - 216
SP  - 206
VL  - 122
DO  - 10.1016/j.seppur.2013.11.002
ER  - 

@article{
author = "Lučić, Marija and Milosavljević, Nedeljko and Radetić, Maja 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.",
publisher = "Elsevier, Amsterdam",
journal = "Separation and Purification Technology",
title = "The potential application of TiO2/hydrogel nanocomposite for removal of various textile azo dyes",
pages = "216-206",
volume = "122",
doi = "10.1016/j.seppur.2013.11.002"
}

Lučić, M., Milosavljević, N., Radetić, 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
Elsevier, Amsterdam., 122, 206-216.
https://doi.org/10.1016/j.seppur.2013.11.002

Lučić M, Milosavljević N, Radetić M, 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 .

Lučić, Marija, Milosavljević, Nedeljko, Radetić, Maja, 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  - Milašinović, Nikola
AU  - Jakovetić, Sonja
AU  - Knežević-Jugović, Zorica
AU  - Milosavljević, Nedeljko
AU  - Lučić, Marija
AU  - Filipović, Jovanka
AU  - Kalagasidis Krušić, Melina
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2771
AB  - This study reports the synthesis of polymeric matrices based on N-isopropylacrylamide and itaconic acid and its application for immobilization of lipase from Candida rugosa. The lipase was immobilized by entrapment method. Free and immobilized lipase activities, pH and temperature optima, and storage stability were investigated. The optimum temperature for free and entrapped lipase was found to be 40 and 45 degrees C, while the optimum pH was observed at pH 7 and 8, respectively. Both hydrolytic activity in an aqueous medium and esterolytic activity in an organic medium have been evaluated. Maximum reaction rate (V-max) and Michaelis-Menten constants (K-m) were also determined for immobilized lipase. Storage stability of lipase was increased as a result of immobilization process. Furthermore, the operational stability and reusability of the immobilized lipase in esterification reaction have been studied, and it was observed that after 10 cycles, the residual activity for entrapped lipase was as high as 50%, implying that the developed hydrogel and immobilized system could provide a promising solution for the flavor ester synthesis at the industrial scale.
PB  - Hindawi Publishing Corp, New York
T2  - Scientific World Journal
T1  - Catalyzed Ester Synthesis Using Candida rugosa Lipase Entrapped by Poly(N-isopropylacrylamide-co-itaconic Acid) Hydrogel
DO  - 10.1155/2014/142123
ER  - 

@article{
author = "Milašinović, Nikola and Jakovetić, Sonja and Knežević-Jugović, Zorica and Milosavljević, Nedeljko and Lučić, Marija and Filipović, Jovanka and Kalagasidis Krušić, Melina",
year = "2014",
abstract = "This study reports the synthesis of polymeric matrices based on N-isopropylacrylamide and itaconic acid and its application for immobilization of lipase from Candida rugosa. The lipase was immobilized by entrapment method. Free and immobilized lipase activities, pH and temperature optima, and storage stability were investigated. The optimum temperature for free and entrapped lipase was found to be 40 and 45 degrees C, while the optimum pH was observed at pH 7 and 8, respectively. Both hydrolytic activity in an aqueous medium and esterolytic activity in an organic medium have been evaluated. Maximum reaction rate (V-max) and Michaelis-Menten constants (K-m) were also determined for immobilized lipase. Storage stability of lipase was increased as a result of immobilization process. Furthermore, the operational stability and reusability of the immobilized lipase in esterification reaction have been studied, and it was observed that after 10 cycles, the residual activity for entrapped lipase was as high as 50%, implying that the developed hydrogel and immobilized system could provide a promising solution for the flavor ester synthesis at the industrial scale.",
publisher = "Hindawi Publishing Corp, New York",
journal = "Scientific World Journal",
title = "Catalyzed Ester Synthesis Using Candida rugosa Lipase Entrapped by Poly(N-isopropylacrylamide-co-itaconic Acid) Hydrogel",
doi = "10.1155/2014/142123"
}

Milašinović, N., Jakovetić, S., Knežević-Jugović, Z., Milosavljević, N., Lučić, M., Filipović, J.,& Kalagasidis Krušić, M.. (2014). Catalyzed Ester Synthesis Using Candida rugosa Lipase Entrapped by Poly(N-isopropylacrylamide-co-itaconic Acid) Hydrogel. in Scientific World Journal
Hindawi Publishing Corp, New York..
https://doi.org/10.1155/2014/142123

Milašinović N, Jakovetić S, Knežević-Jugović Z, Milosavljević N, Lučić M, Filipović J, Kalagasidis Krušić M. Catalyzed Ester Synthesis Using Candida rugosa Lipase Entrapped by Poly(N-isopropylacrylamide-co-itaconic Acid) Hydrogel. in Scientific World Journal. 2014;.
doi:10.1155/2014/142123 .

Milašinović, Nikola, Jakovetić, Sonja, Knežević-Jugović, Zorica, Milosavljević, Nedeljko, Lučić, Marija, Filipović, Jovanka, Kalagasidis Krušić, Melina, "Catalyzed Ester Synthesis Using Candida rugosa Lipase Entrapped by Poly(N-isopropylacrylamide-co-itaconic Acid) Hydrogel" in Scientific World Journal (2014),
https://doi.org/10.1155/2014/142123 . .

TY  - JOUR
AU  - Lučić, Marija
AU  - Milosavljević, Nedeljko
AU  - Radetić, Maja
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2777
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.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Photocatalytic Degradation of C. I. Acid Orange 7 by TiO2 Nanoparticles Immobilized onto/ into Chitosan- Based Hydrogel
EP  - 815
IS  - 4
SP  - 806
VL  - 35
DO  - 10.1002/pc.22724
ER  - 

@article{
author = "Lučić, Marija and Milosavljević, Nedeljko and Radetić, Maja 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.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Photocatalytic Degradation of C. I. Acid Orange 7 by TiO2 Nanoparticles Immobilized onto/ into Chitosan- Based Hydrogel",
pages = "815-806",
number = "4",
volume = "35",
doi = "10.1002/pc.22724"
}

Lučić, M., Milosavljević, N., Radetić, 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
Wiley, Hoboken., 35(4), 806-815.
https://doi.org/10.1002/pc.22724

Lučić M, Milosavljević N, Radetić M, 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 .

Lučić, Marija, Milosavljević, Nedeljko, Radetić, Maja, 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  - JOUR
AU  - Milašinović, Nikola
AU  - Knežević-Jugović, Zorica
AU  - Milosavljević, Nedeljko
AU  - Lučić-Škorić, Marija
AU  - Filipović, Jovanka
AU  - Kalagasidis Krušić, Melina
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2828
AB  - Stimuli responsive pH- and temperature-sensitive hydrogel drug delivery systems, as those based on N-isopropylacrylamide (NiPAAm) and itaconic acid (IA), have been attracting much of the attention of the scientific community nowadays, especially in the field of drug release. By adjusting comonomer composition, the matrix is enabled to protect the incorporated protein in the highly acidic environment of upper gastrointestinal tract and deliver it in the neutral or slightly basic region of the lower intestine. The protein/poly(NiPAAm-co-IA) hydrogels were synthetized by free radical crosslinking copolymerization and were characterized concerning their swelling capability, mechanical properties, and morphology. The pore structure and sizes up to 1.90 nm allowed good entrapment of lipase molecules. Model protein, lipase from Candida rugosa, was entrapped within hydrogels upon mild conditions that provided its protection from harmful environmental influences. The efficiency of the lipase entrapment reached 96.7%, and was dependent on the initial concentration of lipase solution. The swelling of the obtained hydrogels in simulated pH and temperature of gastrointestinal tract, the lipase entrapment efficiency, and its release profiles from hydrogels were investigated as well.
PB  - Hindawi Ltd, London
T2  - Biomed Research International
T1  - Stimuli-Sensitive Hydrogel Based on N-Isopropylacrylamide and Itaconic Acid for Entrapment and Controlled Release of Candida rugosa Lipase under Mild Conditions
VL  - 2014
DO  - 10.1155/2014/364930
ER  - 

@article{
author = "Milašinović, Nikola and Knežević-Jugović, Zorica and Milosavljević, Nedeljko and Lučić-Škorić, Marija and Filipović, Jovanka and Kalagasidis Krušić, Melina",
year = "2014",
abstract = "Stimuli responsive pH- and temperature-sensitive hydrogel drug delivery systems, as those based on N-isopropylacrylamide (NiPAAm) and itaconic acid (IA), have been attracting much of the attention of the scientific community nowadays, especially in the field of drug release. By adjusting comonomer composition, the matrix is enabled to protect the incorporated protein in the highly acidic environment of upper gastrointestinal tract and deliver it in the neutral or slightly basic region of the lower intestine. The protein/poly(NiPAAm-co-IA) hydrogels were synthetized by free radical crosslinking copolymerization and were characterized concerning their swelling capability, mechanical properties, and morphology. The pore structure and sizes up to 1.90 nm allowed good entrapment of lipase molecules. Model protein, lipase from Candida rugosa, was entrapped within hydrogels upon mild conditions that provided its protection from harmful environmental influences. The efficiency of the lipase entrapment reached 96.7%, and was dependent on the initial concentration of lipase solution. The swelling of the obtained hydrogels in simulated pH and temperature of gastrointestinal tract, the lipase entrapment efficiency, and its release profiles from hydrogels were investigated as well.",
publisher = "Hindawi Ltd, London",
journal = "Biomed Research International",
title = "Stimuli-Sensitive Hydrogel Based on N-Isopropylacrylamide and Itaconic Acid for Entrapment and Controlled Release of Candida rugosa Lipase under Mild Conditions",
volume = "2014",
doi = "10.1155/2014/364930"
}

Milašinović, N., Knežević-Jugović, Z., Milosavljević, N., Lučić-Škorić, M., Filipović, J.,& Kalagasidis Krušić, M.. (2014). Stimuli-Sensitive Hydrogel Based on N-Isopropylacrylamide and Itaconic Acid for Entrapment and Controlled Release of Candida rugosa Lipase under Mild Conditions. in Biomed Research International
Hindawi Ltd, London., 2014.
https://doi.org/10.1155/2014/364930

Milašinović N, Knežević-Jugović Z, Milosavljević N, Lučić-Škorić M, Filipović J, Kalagasidis Krušić M. Stimuli-Sensitive Hydrogel Based on N-Isopropylacrylamide and Itaconic Acid for Entrapment and Controlled Release of Candida rugosa Lipase under Mild Conditions. in Biomed Research International. 2014;2014.
doi:10.1155/2014/364930 .

Milašinović, Nikola, Knežević-Jugović, Zorica, Milosavljević, Nedeljko, Lučić-Škorić, Marija, Filipović, Jovanka, Kalagasidis Krušić, Melina, "Stimuli-Sensitive Hydrogel Based on N-Isopropylacrylamide and Itaconic Acid for Entrapment and Controlled Release of Candida rugosa Lipase under Mild Conditions" in Biomed Research International, 2014 (2014),
https://doi.org/10.1155/2014/364930 . .