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Antimicrobial activity of bleached cattail fibers ( Typha domingensis ) impregnated with silver nanoparticles and benzalkonium chloride
Author(s) -
Koschevic Marivane Turim,
Araújo Renata Pires,
Garcia Vitor Augusto,
Fakhouri Farayde Matta,
Oliveira Kelly Mari Pires,
Arruda Eduardo José,
Dufresne Alain,
Martelli Sílvia Maria
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50885
Subject(s) - benzalkonium chloride , antimicrobial , chemistry , nuclear chemistry , silver nanoparticle , materials science , nanoparticle , organic chemistry , nanotechnology
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.