Antimicrobial activity of cellulose-based nanofibers with different Ag phases

被引：18
|
作者：
Jang, Ki Hyuk [1 ]
Yu, Young Joon [2 ]
Lee, Young Ha [2 ]
Kang, Yun Ok [3 ]
Park, Won Ho [1 ]
机构：
[1] Chungnam Natl Univ, Dept Adv Organ Mat & Text Syst Engn, Taejon 305764, South Korea
[2] Chungnam Natl Univ, Dept Microbiol, Taejon 305764, South Korea
[3] Chungnam Natl Univ, Dept Naonotechnol, Taejon 305764, South Korea
来源：
MATERIALS LETTERS | 2014年 / 116卷
基金：
新加坡国家研究基金会;
关键词：
Cellulose acetate; Cellulose; Nanofibers; Silver; Ions; Nanoparticles; Antimicrobial activity; FIBER DIAMETER; SOLVENT SYSTEM; VISIBLE-LIGHT; INACTIVATION;
D O I：
10.1016/j.matlet.2013.11.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cellulose acetate (CA) nanofibers containing Ag ions, CA (as-spun), were fabricated by electrospinning with 0.5 or 1 wt% of silver nitrate (AgNO3). CA nanofibers containing Ag ions/nanoparticles (NPs), CA (UV), were prepared by UV irradiation of as-spun CA nanofibers. Also, cellulose nanofibers with Ag NPs, CA (UV+DA), were prepared by deacetylating the UV-irradiated CA nanofibers. The antimicrobial activities of Ag ions or NPs in nanofibrous matrices were examined against Gram-negative Escherichia colt and Gram-positive Staphylococcus aureus. From conventional antimicrobial test for 18 h, both Ag ions and Ag NPs in the CA or cellulose nanofibers exhibited strong antimicrobial activity against S. aureus. From kinetic antimicrobial test against E. coli for 30 min, the CA (as-spun) showed faster bactericidal activity than the CA (UV) and CA (UV+DA) samples. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：146 / 149
页数：4
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