Abstract
Polyester knitted fabrics have been equipped with antibacterial properties by coating with aqueous suspensions of zinc oxide (ZnO) with different particle diameters. It can be shown that the antibacterial efficacy against Staphylococcus aureus and Klebsiella pneumonia and the permanence of the coating after defined washing cycles depends on the composition of the ZnO dispersion. To improve the wettability of the textile, the combustion chemical vapor deposition (CCVD) is used to generate a hydrophilic nano layer of a hydroxyl terminated silicon network on the surface of the textiles. The comparison of CCVD-treated and untreated polyester samples does not show differences in the antibacterial activity. The influence of the coating in terms of amount and particle size of ZnO on the viability and proliferation of 3T3 mouse fibroblast cells is examined. A particle content of a maximum of 20 μg ZnO/cm2 is found to be cytocompatible for coating of textiles.
Highlights
Omnipresent colonization of material surfaces, especially by bacteria, is an undesired occurrence in the technical sector as well as in everyday life and can be life-threatening in the clinical area
Our research addresses the improvement of the coated polyester regarding the optical appearance and especially of the permanence of the antibacterial effect
zinc oxide (ZnO) nanoparticles which are differ in particle size should be used to achieve optimal properties of an antibacterial coating
Summary
Omnipresent colonization of material surfaces, especially by bacteria, is an undesired occurrence in the technical sector as well as in everyday life and can be life-threatening in the clinical area. (2015) Antibacterial Zinc Oxide Nanoparticle Coating of Polyester Fabrics. The use of several substances for reducing bacterial colonization on textile surfaces have been reported including positively charged molecules [1]-[4], silver [4]-[7], copper [8], triazin derivatives [9] [10], chitosan [3] [11] [12], or triclosan [3]. In several studies the antimicrobial effect of zinc oxide coatings against different bacteria can be already verified [20]-[23]
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