title: Preparation of silver-coated cotton fabrics using silver carbamate via thermal reduction and their properties.
abstract: In this study, cotton fabric was successfully coated with silver to have both antibacterial and conductive properties through a facile thermal reduction process at a low temperature using silver 2-ethylhexylcarbamate as the starting material. The cotton fabric modified with 3-mercaptopropyltriethoxysilane was padded with a solution of silver 2-ethylhexylcarbamate in methanol and then reduced for the in situ generation of Ag nanoparticles by only heating at 130°C. The silver-coated cotton fabrics (cotton/Ag) were examined by a scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX) and X-ray photoelectron spectroscopy (XPS) analyses. The morphology of cotton/Ag nanocomposite fabrics conveyed a uniform and continuous layer of silver metal on the cotton surface. The results indicated that the silver nanoparticles were assembled on cotton fibers with a size range from 20 to 100 nm. The cotton/Ag imparts high conductivity to the textiles with electric resistance as low as 3.92±0.18 Ω. The antibacterial effects of the treated cotton fabric against Escherichia coli O157:H7 (ATCC 43889) and Staphylococcus aureus (ATCC 25923) were examined and found to be excellent.
authors.affiliation: Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Chungnam 330-714, Republic of Korea.
authors.forename: Wan-Gyu
authors.initials: WG
authors.lastname: Kwak
authors.affiliation: Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Chungnam 330-714, Republic of Korea.
authors.forename: Man Hwan
authors.initials: MH
authors.lastname: Oh
authors.affiliation: Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Chungnam 330-714, Republic of Korea. Electronic address: msgong@dankook.ac.kr.
authors.forename: Myoung-Seon
authors.initials: MS
authors.lastname: Gong
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology*; D002219:Carbamates / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry*; D032561:Cotton Fiber; D019453:Escherichia coli O157 / Q000187:drug effects; D053768:Metal Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction; D012821:Silanes / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D013211:Staphylococcus aureus / Q000187:drug effects; D013499:Surface Properties; D013696:Temperature
chemical_list: D000900:Anti-Bacterial Agents; D002219:Carbamates; D056831:Coordination Complexes; D012821:Silanes; D012834:Silver
keywords: Composites; Cotton; Silver carbamate; Silver nanoparticles; Thermal reduction