Chitosan Nanoparticles Functionalized Viscose Fabrics as Potentially Durable Antibacterial Medical Textiles

Materials

Alenka Vesel¹  Snežana Trifunović²  Mirjana M. Kostić³  Katarina Mihajlovski³  Tanja Nikolić³  Matea Korica⁴  Biljana Dojčinović⁵  Zdenka Peršin⁶  Lidija Fras Zemljič⁶ 

[1]Department of Surface Engineering, Jožef Stefan Institute, University of Ljubljana, 1000 Ljubljana, Slovenia

[2]Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia

[3]Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia

[4]Innovation Center of Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia

[5]Institute of Chemistry, Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia

[6]Institute of Engineering Materials and Design, Faculty of Mechanical Engineering, University of Maribor, 2000 Maribor, Slovenia

关键词: viscose fabric;    TEMPO-oxidation;    TEMPO-oxidized cellulose nanofibrils;    chitosan nanoparticles;    chitosan nanoparticles with embedded zinc ions;    washing durable antibacterial textile;   

DOI  :  10.3390/ma14133762

来源: DOAJ

【 摘 要 】

This research proposed two pretreatments of viscose fabrics: oxidation with 2,2,6,6-tetramethylpiperidine-1-oxy radical (TEMPO) and coating with TEMPO-oxidized cellulose nanofibrils (TOCN), to introduce functional groups (COOH and CHO) suitable for irreversible binding of chitosan nanoparticles without and with embedded zinc (NCS and NCS + Zn, respectively) and consequently achieving washing durable antibacterial properties of the chitosan nanoparticles functionalized fabrics. The characterizations of pretreated and chitosan nanoparticles functionalized fabrics were performed by FTIR and XPS spectroscopy, elemental analysis, inductively coupled plasma optical emission spectrometry, zeta potential measurements, scanning electron microscopy, determination of COOH and CHO groups content, and antimicrobial activity under dynamic contact conditions. Influence of pretreatments on NCS and NCS + Zn adsorption, chemical, electrokinetic, and antibacterial properties as well as morphology, and washing durability of NCS and NCS + Zn functionalized fabrics were studied and compared. Washing durability was evaluated through changes in the chitosan and zinc content, zeta potential, and antibacterial activity after 1, 3, and 5 washing cycles. Pretreatments improved washing durability of antibacterial properties of chitosan nanoparticles functionalized fabrics. The NCS and NCS + Zn functionalized pretreated fabrics preserved antibacterial activity against S. aureus after five washing cycles, while antibacterial activity against E. coli was preserved only after one washing cycle in the case NCS + Zn functionalized pretreated viscose fabrics.

【 授权许可】

Unknown