Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation
Samo za registrovane korisnike
2015
Autori
Spasojević, Jelena P.Radosavljević, Aleksandra
Krstić, Jelena I.
Jovanović, Dragutin
Spasojević, Vuk D.
Kalagasidis Krušić, Melina
Kačarević-Popović, Zorica M.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Young's modulus of elasticity were decreased by addition of I...A as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials.
Ključne reči:
Gamma irradiation / Smart hydrogel nanocomposites / Ag nanoparticles / Swelling properties / Mechanical properties / Antibacterial propertiesIzvor:
European Polymer Journal, 2015, 69, 168-185Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
DOI: 10.1016/j.eurpolymj.2015.06.008
ISSN: 0014-3057
WoS: 000359504800015
Scopus: 2-s2.0-84930948651
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Spasojević, Jelena P. AU - Radosavljević, Aleksandra AU - Krstić, Jelena I. AU - Jovanović, Dragutin AU - Spasojević, Vuk D. AU - Kalagasidis Krušić, Melina AU - Kačarević-Popović, Zorica M. PY - 2015 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3154 AB - Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Young's modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - European Polymer Journal T1 - Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation EP - 185 SP - 168 VL - 69 DO - 10.1016/j.eurpolymj.2015.06.008 ER -
@article{ author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena I. and Jovanović, Dragutin and Spasojević, Vuk D. and Kalagasidis Krušić, Melina and Kačarević-Popović, Zorica M.", year = "2015", abstract = "Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Young's modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "European Polymer Journal", title = "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation", pages = "185-168", volume = "69", doi = "10.1016/j.eurpolymj.2015.06.008" }
Spasojević, J. P., Radosavljević, A., Krstić, J. I., Jovanović, D., Spasojević, V. D., Kalagasidis Krušić, M.,& Kačarević-Popović, Z. M.. (2015). Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation. in European Polymer Journal Pergamon-Elsevier Science Ltd, Oxford., 69, 168-185. https://doi.org/10.1016/j.eurpolymj.2015.06.008
Spasojević JP, Radosavljević A, Krstić JI, Jovanović D, Spasojević VD, Kalagasidis Krušić M, Kačarević-Popović ZM. Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation. in European Polymer Journal. 2015;69:168-185. doi:10.1016/j.eurpolymj.2015.06.008 .
Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena I., Jovanović, Dragutin, Spasojević, Vuk D., Kalagasidis Krušić, Melina, Kačarević-Popović, Zorica M., "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation" in European Polymer Journal, 69 (2015):168-185, https://doi.org/10.1016/j.eurpolymj.2015.06.008 . .