title: Gamma irradiation of cotton fabrics in AgNO₃ solution for preparation of antibacterial fabrics.
abstract: Silver nanoparticles (AgNPs) with diameter about 12 nm were immobilized on the surface of cotton fabrics by γ-irradiation of fabrics in the AgNO3 chitosan solution. Effects of absorbed dose, concentration of AgNO3 solution on immobilization of the AgNPs on fabrics were investigated. The optimal dose was selected to be 13.8 kGy and the suitable concentration of AgNO3 was 1.5mM in 1% chitosan solution. The content of AgNPs on fabrics was of 1,696 ± 80 mg/kg for these conditions. The presence of AgNPs on fabrics was confirmed from scanning electron microscopy (SEM) images and X ray diffraction (XRD) patterns. The antibacterial activity of AgNPs/cotton fabrics after 40 washings against Staphylococcus aureus and Escherichia coli was found to be 99.99%. In addition, the AgNPs fabrics were innoxious to the skin (k=0) after 1, 5, 10, 20, 30 and 40 washings by skin-irritation testing to animal (rabbit).
authors.affiliation: Research and Development Center for Radiation Technology, VINATOM 202A, Street 11, Linh Xuan Ward, Thu Duc District, Ho Chi Minh City, Vietnam. Electronic address: truongthihanh05@yahoo.com.
authors.forename: Truong Thi
authors.initials: TT
authors.lastname: Hanh
authors.forename: Dang
authors.initials: D
authors.lastname: Van Phu
authors.forename: Nguyen Thi
authors.initials: NT
authors.lastname: Thu
authors.forename: Le Anh
authors.initials: le A
authors.lastname: Quoc
authors.forename: Do Nu Bich
authors.initials: do NB
authors.lastname: Duyen
authors.forename: Nguyen Quoc
authors.initials: NQ
authors.lastname: Hien
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000009:adverse effects / Q000737:chemistry* / Q000494:pharmacology*; D003020:Clothing; D032561:Cotton Fiber; D005720:Gamma Rays; D053768:Metal Nanoparticles / Q000737:chemistry; D011817:Rabbits; D012834:Silver / Q000737:chemistry; D012835:Silver Nitrate / Q000009:adverse effects / Q000737:chemistry* / Q000494:pharmacology*; D012867:Skin / Q000187:drug effects; D012996:Solutions; D013997:Time Factors
chemical_list: D000900:Anti-Bacterial Agents; D012996:Solutions; D012834:Silver; D012835:Silver Nitrate
keywords: Antibacterial; Chitosan; Cotton fabrics; Silver nanoparticles; γ- irradiation