Development of Antimicrobial Dressings by the Action of Silver Nanoparticles Based on Green Nanotechnology

Abstract

Alternatives have been investigated to reduce the environmental impact of waste emitted in the health field. The replacement of conventional polymers with biodegradable polymers in hospital dressings is one. Corn starch is a biopolymer, biodegradable, with skin regenerating properties. Glycerol is a by-product of biodiesel synthesis, and when polymerized, it becomes polyglycerol, a polymer with plasticizing characteristics. Therefore, a polymer blend is shaped based on another promising natural compound: Euterpe oleracea extract. This extract has fundamental antioxidant properties for the efficient synthesis and dispersion of silver nanoparticles. These nanostructures have, among many characteristics, antimicrobial properties. This article reports the development of a polymer blend, based on açaí fruit extract and dispersion of AgNPs, for the production of biodegradable filmogenic dressings that do not require the use of glue. It was observed that the Euterpe oleracea extract is an efficient reducer and stabilizer of AgNPs. The antimicrobial sensitivity test, the antimicrobial efficiency of the polymeric blends, and the AgNPs in the S. aureus ATCC 25923 and E. coli ATCC 25922 strains were confirmed.