Naslov
Antimikrobna zaštita
(Antimicrobial finishing)

Autori
Turalija, Marina ; Gaan, Sabyasachi ; Bischof Vukušić, Sandra

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Young scientists in the protective textiles research

Urednik/ci
Bischof Vukušić, Sandra ; Katović, Drago

Izdavač
Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu

Grad
Zagreb

Godina
2011

Raspon stranica
143-165

ISBN
978-953-7105-41-9

Ključne riječi
Polilaktid, Antimikrobna svojstva, Srebro, DC magnetronsko raspršivanje, Nisko tlačna plazma
(Polylactide, Antimicrobial, Silver, Plasma Sputtering, Nano-composite)

Sažetak
Polylactide (PLA) is one of the most promising biodegradable polymers owing to its mechanical property profile, thermoplastic processibility and biological properties. PLA is a thermoplastic, high-strength, high-modulus polymer that can be made from annually renewable proper resources to yield articles for use in either the industrial packaging field or in the biocompatible/bio absorbable medical device market. It is easily processed on standard plastics equipment to yield molded parts, films, membrane or fibers. In this research, we performed PLA surface modifications with silver, either as pure silver deposit or as silver nano-composite using plasma process. Antimicrobial activity of PLA films were measured against gram-positive bacteria Listeria monocytogenes (DMSZ15675) and gram-negative bacteria Salmonella typhimurium (TA100), using a standard test ISO 22196:2007. Surface modifications with pure silver deposit (DC magnetron sputtering) or as silver nano-composite (Low pressure plasma, significantly improve the antimicrobial properties of PLA films. Surface topography and size/distribution of Ag nanoparticles were found to influence the Ag ion release kinetics.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija

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