Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

• DOI: 10.3390/nano10040607
• Publication Date: 2020-03-31T14:29:38Z
• Authors: Ana I. Ribeiro; Martina Modic; Uros Cvelbar; Gheorghe Dinescu; Bogdana Mitu; Anton Nikiforov; Christophe Leys; Iryna Kuchakova; Mike De Vrieze; Helena P. Felgueiras; António P. Souto; Andrea Zille
• Keywords: Polyvinylpyrrolidone; Silver nanoparticle; Dispersion stability

Polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) dispersed in ethanol, water and water/alginate were used to functionalize untreated dielectric barrier discharge (DBD) plasma-treated polyamide 6,6 fabric (PA66). The PVP-AgNPs dispersions deposited onto PA66 by spray exhaustion methods. method showed a higher amount of AgNPs. Water water-alginate presented similar results. Ethanol amphiphilic character more affinity AgNPs fabric, allowing better uniform surface distribution nanoparticles. Antimicrobial effect E. coli good results all the samples obtained but using only DBD plasma treated displayed antimicrobial activity (log reduction 5). Despite achieved ethanol as solvent, dispersion with treatment against S. aureus bacteria both 1.9) (methods log 1.6) due different oxidation states interacting PVP-AgNPs, demonstrated X-Ray Photoelectron Spectroscopy (XPS) analysis. Spray water-suspended is much faster, less agglomerating uses 10 times than obtain an coli.