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Updated: Jan 23, 2026

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
Published on: April 21, 2023
Functional textiles impregnated with biogenic silver nanoparticles from Bionectria ochroleuca and its antimicrobial
Alexandre Gomes Rodrigues1, Priscila Jane Romano de Oliveira Gonçalves2, Cristiane Angélica Ottoni3
1Molecular Biology Laboratory, Instituto Butantan, Avenida Vital Brasil 1500, Zip Code 05503-900, Instituto Butantan, São Paulo, SP, Brazil.
Abstract:
Biogenic silver nanoparticles (AgNPs) were obtained throughout the fungal biosynthesis using extracellular filtrate of the epiphytic fungus B. ochroleuca and were incorporated in cotton and polyester fabrics by common impregnation procedure that was repeated once, twice or four times. Both fabrics were analyzed by scanning electron microscopy (SEM), and the effectiveness of impregnation was determined using inductively coupled plasma optical emission spectrometry (ICP OES). The AgNPs loaded fabrics showed potent antimicrobial activity on Staphylococcus aureus and Escherichia coli as well as on clinically relevant Candida albicans, Candida glabrata, and Candida parapsilosis, indicating that the AgNPs impregnation of cotton and polyester fabrics was efficient. AgNPs effectively inhibited the biofilm formation by Pseudomonas aeruginosa and was not toxic to Galleria mellonella larvae indicating a promising probability of biotechnological application.
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