Antimicrobial activity of bleached cattail fibers (Typha domingensis) impregnated with silver nanoparticles and benzalkonium chloride. Issue 35 (26th April 2021)

• Record Type: Journal Article
• Authors: Koschevic, Marivane Turim; de Araújo, Renata Pires; dos Santos Garcia, Vitor Augusto; Fakhouri, Farayde Matta; de Oliveira, Kelly Mari Pires; Arruda, Eduardo José; Dufresne, Alain; Martelli, Sílvia Maria
• Is Part Of: Journal of applied polymer science. Volume 138:Issue 35(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-04-26
• Subjects: biomaterials -- Cattail -- microscopy -- thermal properties; Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.50885
• Languages: English
• ISSNs: 0021-8995

Abstract

Abstract: Typha domingensis (Cattail) fiber is a significant natural resource, abundant in cellulose. The study reports the useful utilization of T. domingensis fiber for physicochemical impregnation of silver nanoparticles and benzalkonium chloride, in the development of a material with antimicrobial activity. The fibers were pre‐treated with alkaline hydrogen peroxide (bleaching) for partial removal of lignin, pectin and waxes. Subsequently treated in a solution of different concentrations of benzalkonium chloride and Tollens' reagent. The new materials obtained were carefully investigated for their structure and thermal stability, morphology and susceptibility to antimicrobials ( Staphylococcus aureus, Escherichia coli, Salmonella typhimuruim, and Salmonella enteritidis ). Fourier transform infrared spectra showed the presence of benzalkonium chloride. The morphology analysis showed the silver nanoparticles on the surface of the bleached fibers. The susceptibility profile to antimicrobials was confirmed by the formation of inhibition halos (≅11.26 mm). Based on the properties of the materials obtained, it can be concluded that the modified cattail fibers have the potential to be used as a functional filler, or coating, in the development of antimicrobial composites. Abstract : Bleached cattail fibers modified by physical–chemical processes of impregnation of silver nanoparticles have the potential to be used as a functional filler, or coating, in the development of antimicrobial composites.