Kramar, Ana

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orcid::0000-0003-4208-943X
  • Kramar, Ana (2)
Projects

Author's Bibliography

Obtaining Medical Textiles Based on Viscose and Chitosan/Zinc Nanoparticles with Improved Antibacterial Properties by Using a Dielectric Barrier Discharge

Korica, Matea; Kramar, Ana; Peršin Fratnik, Zdenka; Obradović, Bratislav; Kuraica, Milorad M.; Dojčinović, Biljana; Fras Zemljič, Lidija; Kostić, Mirjana

(Switzerland : Multidisciplinary Digital Publishing Institute (MDPI), 2022)

TY  - JOUR
AU  - Korica, Matea
AU  - Kramar, Ana
AU  - Peršin Fratnik, Zdenka
AU  - Obradović, Bratislav
AU  - Kuraica, Milorad M.
AU  - Dojčinović, Biljana
AU  - Fras Zemljič, Lidija
AU  - Kostić, Mirjana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5386
AB  - This study aimed to obtain functional viscose textiles based on chitosan coatings with improved antibacterial properties and washing durability. For that reason, before functionalization with chitosan/zinc nanoparticles (NCH+Zn), the viscose fabric was modified by nonthermal gas plasma of dielectric barrier discharge (DBD) to introduce into its structure functional groups suitable for attachment of NCH+Zn. NCH+Zn were characterized by measurements of hydrodynamic diameter and zeta potential and AFM. DBD-plasma-modified and NCH+Zn-functionalized fabrics were characterized by zeta potential measurements, ATR-FTIR spectroscopy, the calcium acetate method (determination of content of carboxyl and aldehyde groups), SEM, breaking-strength measurements, elemental analysis, and ICP-OES. Their antibacterial activity was determined under dynamic contact conditions. In addition to SEM, the NCH+Zn distributions on viscose fabrics were also indirectly characterized by measuring their absorbent capacities before and after functionalization with NCH+Zn. Washing durability was monitored through changes in the zeta potential, chitosan and zinc content, and antibacterial activity after 1, 3, and 5 washing cycles. The obtained results showed that DBD plasma modification contributed to the simultaneous improvement of NCH+Zn sorption and antibacterial properties of the viscose fabric functionalized with NCH+Zn, and its washing durability, making it suitable for the production of high-value-added medical textiles.
PB  - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
T2  - Polymers
T1  - Obtaining Medical Textiles Based on Viscose and Chitosan/Zinc Nanoparticles with Improved Antibacterial Properties by Using a Dielectric Barrier Discharge
VL  - 14
IS  - 19
SP  - 4152
DO  - 10.3390/polym14194152
ER  - 
@article{
author = "Korica, Matea and Kramar, Ana and Peršin Fratnik, Zdenka and Obradović, Bratislav and Kuraica, Milorad M. and Dojčinović, Biljana and Fras Zemljič, Lidija and Kostić, Mirjana",
year = "2022",
abstract = "This study aimed to obtain functional viscose textiles based on chitosan coatings with improved antibacterial properties and washing durability. For that reason, before functionalization with chitosan/zinc nanoparticles (NCH+Zn), the viscose fabric was modified by nonthermal gas plasma of dielectric barrier discharge (DBD) to introduce into its structure functional groups suitable for attachment of NCH+Zn. NCH+Zn were characterized by measurements of hydrodynamic diameter and zeta potential and AFM. DBD-plasma-modified and NCH+Zn-functionalized fabrics were characterized by zeta potential measurements, ATR-FTIR spectroscopy, the calcium acetate method (determination of content of carboxyl and aldehyde groups), SEM, breaking-strength measurements, elemental analysis, and ICP-OES. Their antibacterial activity was determined under dynamic contact conditions. In addition to SEM, the NCH+Zn distributions on viscose fabrics were also indirectly characterized by measuring their absorbent capacities before and after functionalization with NCH+Zn. Washing durability was monitored through changes in the zeta potential, chitosan and zinc content, and antibacterial activity after 1, 3, and 5 washing cycles. The obtained results showed that DBD plasma modification contributed to the simultaneous improvement of NCH+Zn sorption and antibacterial properties of the viscose fabric functionalized with NCH+Zn, and its washing durability, making it suitable for the production of high-value-added medical textiles.",
publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "Polymers",
title = "Obtaining Medical Textiles Based on Viscose and Chitosan/Zinc Nanoparticles with Improved Antibacterial Properties by Using a Dielectric Barrier Discharge",
volume = "14",
number = "19",
pages = "4152",
doi = "10.3390/polym14194152"
}
Korica, M., Kramar, A., Peršin Fratnik, Z., Obradović, B., Kuraica, M. M., Dojčinović, B., Fras Zemljič, L.,& Kostić, M.. (2022). Obtaining Medical Textiles Based on Viscose and Chitosan/Zinc Nanoparticles with Improved Antibacterial Properties by Using a Dielectric Barrier Discharge. in Polymers
Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 14(19), 4152.
https://doi.org/10.3390/polym14194152
Korica M, Kramar A, Peršin Fratnik Z, Obradović B, Kuraica MM, Dojčinović B, Fras Zemljič L, Kostić M. Obtaining Medical Textiles Based on Viscose and Chitosan/Zinc Nanoparticles with Improved Antibacterial Properties by Using a Dielectric Barrier Discharge. in Polymers. 2022;14(19):4152.
doi:10.3390/polym14194152 .
Korica, Matea, Kramar, Ana, Peršin Fratnik, Zdenka, Obradović, Bratislav, Kuraica, Milorad M., Dojčinović, Biljana, Fras Zemljič, Lidija, Kostić, Mirjana, "Obtaining Medical Textiles Based on Viscose and Chitosan/Zinc Nanoparticles with Improved Antibacterial Properties by Using a Dielectric Barrier Discharge" in Polymers, 14, no. 19 (2022):4152,
https://doi.org/10.3390/polym14194152 . .
5
4

Properties of cotton yarns after oxidation of potassium permanganate in an acidic environment

Knežević, Marina; Kramar, Ana; Korica, Matea; Dojčinović, Biljana; Kostić, Mirjana

(Belgrade, Serbia : Engineering Society for Corrosion, 2017)

TY  - JOUR
AU  - Knežević, Marina
AU  - Kramar, Ana
AU  - Korica, Matea
AU  - Dojčinović, Biljana
AU  - Kostić, Mirjana
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2057
AB  - The impact of nonselective cellulose oxidation (cotton fibre) by potassium permanganate in acidic environment, with or without additional treatment by sodium metabisulfite, on change of sorption (silver ions sorption), and deposition of manganese (IV) oxide were aims of this work. The standard methods and methods developed at Department of Textile Engineering of Faculty of Technology and Metallurgy Belgrade, were used for determination of introduced functional groups, sorption and mechanical properties of selected fibres. Inductively coupled plasma optical emission spectrometry ICP-OES was used for determination of manganese(IV) oxide deposited on cotton fibres. The changes of studied properties of cotton fibres were followed as a function of concentration and pH of the solution of oxidizing agent. Results obtained in this work showed that oxidized cotton fibre with improved sorption properties is appropriate as an initial raw for a wide range of textile products of special assignment.
AB  - Cilj ovog rada je proučavanje uticaja neselektivne oksidacije celuloze (pamučna pređa) kalijumpermanganatom u kiseloj sredini, na promenu sorpcionih svojstava (joni srebra) i sadržaj deponovanog mangan(IV)-oksida. Tokom eksperimenta korišćene su standardne metode i metode razvijene na Katedri za tekstilno inženjerstvo Tehnološko-metalurškog fakulteta u Beogradu. Za određivanje sadržaja mangan(IV) oksida deponovanog na pamučnoj pređi je korišćena optička emisiona spektrometrija sa induktivno spregnutom plazmom (ICP-OES). Promene ispitivanih svojstava pamučnih pređa su ispraćene u funkciji koncentracije i pH rastvora oksidacionog sredstva. Rezulati dobijeni u ovom radu su pokazali da je oksidovana pamučna pređa pogodna polazna sirovina za dobijanje širokog spektra tekstilnih proizvoda specijalne namene. PR Projekat Ministarstva nauke Republike Srbije, br. OI 172029.
PB  - Belgrade, Serbia : Engineering Society for Corrosion
T2  - Zaštita materijala
T1  - Properties of cotton yarns after oxidation of potassium permanganate in an acidic environment
T1  - Svojstva pamučne pređe posle oksidacije kalijum-permanganatom u kiseloj sredini
VL  - 58
IS  - 1
SP  - 31
EP  - 36
DO  - 10.5937/ZasMat1701031K
ER  - 
@article{
author = "Knežević, Marina and Kramar, Ana and Korica, Matea and Dojčinović, Biljana and Kostić, Mirjana",
year = "2017",
abstract = "The impact of nonselective cellulose oxidation (cotton fibre) by potassium permanganate in acidic environment, with or without additional treatment by sodium metabisulfite, on change of sorption (silver ions sorption), and deposition of manganese (IV) oxide were aims of this work. The standard methods and methods developed at Department of Textile Engineering of Faculty of Technology and Metallurgy Belgrade, were used for determination of introduced functional groups, sorption and mechanical properties of selected fibres. Inductively coupled plasma optical emission spectrometry ICP-OES was used for determination of manganese(IV) oxide deposited on cotton fibres. The changes of studied properties of cotton fibres were followed as a function of concentration and pH of the solution of oxidizing agent. Results obtained in this work showed that oxidized cotton fibre with improved sorption properties is appropriate as an initial raw for a wide range of textile products of special assignment., Cilj ovog rada je proučavanje uticaja neselektivne oksidacije celuloze (pamučna pređa) kalijumpermanganatom u kiseloj sredini, na promenu sorpcionih svojstava (joni srebra) i sadržaj deponovanog mangan(IV)-oksida. Tokom eksperimenta korišćene su standardne metode i metode razvijene na Katedri za tekstilno inženjerstvo Tehnološko-metalurškog fakulteta u Beogradu. Za određivanje sadržaja mangan(IV) oksida deponovanog na pamučnoj pređi je korišćena optička emisiona spektrometrija sa induktivno spregnutom plazmom (ICP-OES). Promene ispitivanih svojstava pamučnih pređa su ispraćene u funkciji koncentracije i pH rastvora oksidacionog sredstva. Rezulati dobijeni u ovom radu su pokazali da je oksidovana pamučna pređa pogodna polazna sirovina za dobijanje širokog spektra tekstilnih proizvoda specijalne namene. PR Projekat Ministarstva nauke Republike Srbije, br. OI 172029.",
publisher = "Belgrade, Serbia : Engineering Society for Corrosion",
journal = "Zaštita materijala",
title = "Properties of cotton yarns after oxidation of potassium permanganate in an acidic environment, Svojstva pamučne pređe posle oksidacije kalijum-permanganatom u kiseloj sredini",
volume = "58",
number = "1",
pages = "31-36",
doi = "10.5937/ZasMat1701031K"
}
Knežević, M., Kramar, A., Korica, M., Dojčinović, B.,& Kostić, M.. (2017). Properties of cotton yarns after oxidation of potassium permanganate in an acidic environment. in Zaštita materijala
Belgrade, Serbia : Engineering Society for Corrosion., 58(1), 31-36.
https://doi.org/10.5937/ZasMat1701031K
Knežević M, Kramar A, Korica M, Dojčinović B, Kostić M. Properties of cotton yarns after oxidation of potassium permanganate in an acidic environment. in Zaštita materijala. 2017;58(1):31-36.
doi:10.5937/ZasMat1701031K .
Knežević, Marina, Kramar, Ana, Korica, Matea, Dojčinović, Biljana, Kostić, Mirjana, "Properties of cotton yarns after oxidation of potassium permanganate in an acidic environment" in Zaštita materijala, 58, no. 1 (2017):31-36,
https://doi.org/10.5937/ZasMat1701031K . .