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Nanocomposite of chitosan and silver oxide and its antibacterial property
Author(s) -
Hu Zhigang,
Chan Wing Lai,
Szeto Yau Shan
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.26822
Subject(s) - chitosan , nanocomposite , silver nitrate , emulsion , materials science , aqueous solution , silver nanoparticle , antibacterial activity , chemical engineering , oxide , nanoparticle , polymer chemistry , composite material , nuclear chemistry , chemistry , nanotechnology , organic chemistry , metallurgy , genetics , biology , bacteria , engineering
Abstract An aqueous emulsion of chitosan nanoparticles encapsulating silver oxide is prepared from silver nitrate and chitosan. The nanoparticles are positively charged with an average diameter of 300 nm. The dried particle has a spherical shape with a 100 nm diameter. The emulsion is applied onto cotton and delivers a durable antibacterial activity against S. aureus and E. coli , after 20 washings. The coefficient of friction of the treated fabric is similar to that of the untreated cotton fabric. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2008