Bio-synthesis and applications of silver nanoparticles onto cotton fabrics

• Published in: Carbohydrate polymers 2012-10, Vol.90 (2), p.915-920
• Main Authors: El-Rafie, M.H., Shaheen, Th.I., Mohamed, A.A., Hebeish, A.
• Format: Article
• Language: English
• Subjects: Anti-Infective Agents - chemical synthesis; Anti-Infective Agents - chemistry; Anti-Infective Agents - pharmacology; Antibacterial; Antibacterial activity; antibacterial properties; Applied sciences; Bioconversions. Hemisynthesis; Biological and medical sciences; Biomass; Biosynthesis; Biotechnology; concentration of production; cotton fabric; Cotton fabrics; Cotton Fiber; Cross-disciplinary physics: materials science; rheology; Escherichia coli; Escherichia coli - drug effects; Escherichia coli - growth & development; Exact sciences and technology; Fibers and threads; Forms of application and semi-finished materials; Fundamental and applied biological sciences. Psychology; Fungi; Fusarium - growth & development; Fusarium - metabolism; Fusarium - physiology; Fusarium solani; industrial applications; Materials science; Metal Nanoparticles - analysis; Metal Nanoparticles - chemistry; Methods. Procedures. Technologies; Microbial Sensitivity Tests; nanoparticles; Nanopowders; Nanoscale materials and structures: fabrication and characterization; nanosilver; Particle Size; Physics; Polymer industry, paints, wood; Silver - chemistry; Silver - metabolism; Silver - pharmacology; Silver nanoparticles; silver nitrate; Staphylococcus aureus; Staphylococcus aureus - drug effects; Staphylococcus aureus - growth & development; Technology of polymers; Temperature; Textile Industry - methods; Textiles - microbiology
• ISSN: 0144-8617; 1879-1344
• DOI: 10.1016/j.carbpol.2012.06.020

► Preparation of silver nanoparticles using fungi. ► Factors affecting silver nanoparticles preparation. ► Application of the so-obtained silver nanoparticles as antimicrobial into cotton fabrics. Recently, biosynthesis of metal nanoparticles has drawn considerable attention due to environment-ecofriendly and sustainable methods. Herein, fungus Fusarium solani was selected as candidate for biosynthesis of silver nanoparticles (AgNPs). Factors affecting the biomass concentration, pH of the reaction medium, AgNO3 concentration and the ratio of AgNO3 to biomass concentration on the production of AgNPs were extensively studied. Optimum conditions for biosynthesis of AgNPs could be attained using biomass of F. solani (10g/100ml); AgNO3 (0.078g/100ml); pH, 12; temperature, 25°C and duration, 24h. Under these conditions, the maximum concentration of well stabilized AgNPs obtained was 2000ppm with a mean diameter range of 8–15nm. Such solution is unequivocally feasible for industrial applications. A diluted solution containing 50ppm AgNPs was applied to cotton fabrics which imparts antibacterial activity to the fabric with 97% and 91% reduction of Staphylococcus aureus and Escherichia coli, respectively.