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Preparation and characterization of silver containing chitosan fibers
Author(s) -
Qin Yimin,
Zhu Changjun,
Chen Jie,
Zhong Jinhuan
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26083
Subject(s) - chitosan , distilled water , aqueous solution , materials science , spinning , metal ions in aqueous solution , chemical engineering , chelation , fiber , silver nanoparticle , zirconium , sodium , zirconium phosphate , inorganic chemistry , nuclear chemistry , phosphate , polymer chemistry , metal , chemistry , composite material , nanotechnology , nanoparticle , chromatography , organic chemistry , metallurgy , engineering
Abstract Silver containing chitosan fibers were prepared by blending fine particles of a silver sodium hydrogen zirconium phosphate compound into the spinning solution. It was possible to distribute the silver containing particles in the chitosan fiber because of the high viscosity of the spinning solution and the small diameter of the particles. Because the silver ions are imbedded inside the sodium hydrogen zirconium phosphate complex, the chitosan fibers remain white in color without being oxidized by the silver ions. The release of silver ions from the silver containing chitosan fibers were studied by placing the fibers in contact with distilled water, solution A, and aqueous protein solutions. Results showed that the release of silver ions was low in water, while in solution A and protein solutions, the silver ions are activated through ion exchange and chelation. The silver ions can significantly enhance the antimicrobial properties of the chitosan fibers. Experimental results showed that when placed in contact with the silver containing chitosan fibers, the reduction in bacteria count can be more than 98%. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 3622–3627, 2007