Antimicrobial activity of bleached cattail fibers (Typha domingensis) impregnated with silver nanoparticles and benzalkonium chloride - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Applied Polymer Science Année : 2021

Antimicrobial activity of bleached cattail fibers (Typha domingensis) impregnated with silver nanoparticles and benzalkonium chloride

Marivane Turim Koschevic
Renata Pires Araújo
  • Fonction : Auteur
Vitor Augusto Garcia
Farayde Matta Fakhouri
  • Fonction : Auteur
Kelly Mari Pires Oliveira
  • Fonction : Auteur
Eduardo José Arruda
  • Fonction : Auteur
Sílvia Maria Martelli

Résumé

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.

Dates et versions

hal-04099861 , version 1 (17-05-2023)

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Citer

Marivane Turim Koschevic, Renata Pires Araújo, Vitor Augusto Garcia, Farayde Matta Fakhouri, Kelly Mari Pires Oliveira, et al.. Antimicrobial activity of bleached cattail fibers (Typha domingensis) impregnated with silver nanoparticles and benzalkonium chloride. Journal of Applied Polymer Science, 2021, 138 (35), pp.50885. ⟨10.1002/app.50885⟩. ⟨hal-04099861⟩

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