title: Bio-synthesis and applications of silver nanoparticles onto cotton fabrics.
abstract: 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, AgNO(3) concentration and the ratio of AgNO(3) 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 (10 g/100ml); AgNO(3) (0.078 g/100 ml); pH, 12; temperature, 25 °C and duration, 24h. Under these conditions, the maximum concentration of well stabilized AgNPs obtained was 2000 ppm with a mean diameter range of 8-15 nm. Such solution is unequivocally feasible for industrial applications. A diluted solution containing 50 ppm 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.
authors: Textile Research Division, National Research Center, PO Box 12622, Dokki, Cairo, Giza 12522, Egypt. mh_elrafie@yahoo.com
authors: M H
authors: MH
authors: El-Rafie
authors: Th I
authors: TI
authors: Shaheen
authors: A A
authors: AA
authors: Mohamed
authors: A
authors: A
authors: Hebeish
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D018533:Biomass; D032561:Cotton Fiber; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development; D005670:Fusarium / Q000254:growth & development / Q000378:metabolism* / Q000502:physiology; D053768:Metal Nanoparticles / Q000032:analysis / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D010316:Particle Size; D012834:Silver / Q000737:chemistry / Q000378:metabolism* / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000187:drug effects / Q000254:growth & development; D013696:Temperature; D013783:Textile Industry / Q000379:methods; D013784:Textiles / Q000382:microbiology
chemical_list: D000890:Anti-Infective Agents; D012834:Silver