Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water

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	Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water
	M. J.; Nan Li, L.; Xu, D. K.; Ren, G. G.; Yang, K.
	2015
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	31 期号:3 页码:243-251
摘要	Tap water is one of the most commonly used water resources in our daily life. However, the increasing water contamination and the health risk caused by pathogenic bacteria, such as Staphylococcus aureus and Escherichia coli have attracted more attention. The mutualism of different pathogenic bacteria may diminish antibacterial effect of antibacterial agents. It was found that materials used for making pipe and tap played one of the most important roles in promoting bacterial growth. This paper is to report the performance of an innovative type 304 Cu-bearing stainless steel (304CuSS) against microbes in tap water. The investigation methodologies involved were means of heterotrophic plate count, contact angle measurements, scanning electron microscopy for observing the cell and subtract surface morphology, atomic absorption spectrometry for copper ions release study, and confocal laser scanning microscopy used for examining live/dead bacteria on normal 304 stainless steel and 304CuSS. It was found that the surface free energy varied after being immersed in tap water with polar component and Cu ions release. The results showed 304CuSS could effectively kill most of the planktonic bacteria (max 95.9% antibacterial rate), and consequently inhibit bacterial biofilms formation on the surface, contributing to the reduction of pathogenic risk to the surrounding environments. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
部门归属	[li, mingjun ; nan, li ; xu, dake ; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china. [ren, guogang] univ hertfordshire, sch engn & technol, hatfield al10 9ab, herts, england. ; yang, k (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china. ; kyang@imr.ac.cn
关键词	Cu-bearing Stainless Steel Tap Water Antibacterial Ability Biofilm Enamel In-situ Drinking-water Bacterial Adhesion Corrosion-resistance Molecular Analysis Carbon-films Copper Surface Disease Biofilms
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73842
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. J.,Nan Li, L.,Xu, D. K.,et al. Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water[J]. Journal of Materials Science & Technology,2015,31(3):243-251.
APA	M. J.,Nan Li, L.,Xu, D. K.,Ren, G. G.,&Yang, K..(2015).Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water.Journal of Materials Science & Technology,31(3),243-251.
MLA	M. J.,et al."Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water".Journal of Materials Science & Technology 31.3(2015):243-251.