Bacterial adhesion on ion-implanted stainless steel surfaces

被引：27
作者：
Zhao, Q. [1 ]
Liu, Y.
Wang, C.
Wang, S.
Peng, N.
Jeynes, C.
机构：
[1] Univ Dundee, Dept Mech Engn, Dundee DD1 4HN, Scotland
[2] Univ Surrey, Surrey Ion Beam Ctr, Surrey GU2 7XH, England
来源：
APPLIED SURFACE SCIENCE | 2007年 / 253卷 / 21期
基金：
英国工程与自然科学研究理事会;
关键词：
ion implantation; surface properties; bacterial adhesion;
D O I：
10.1016/j.apsusc.2007.04.044
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Stainless steel disks were implanted with N+, O+ and SiF3+, respectively at the Surrey Ion Beam Centre. The surface properties of the implanted surfaces were analyzed, including surface chemical composition, surface topography, surface roughness and surface free energy. Bacterial adhesion of Pseudomonas aeruginosa, Staphylococcus epidermidis and Staphylococcus aureus, which frequently cause medical device-associated infections was evaluated under static condition and laminar flow condition. The effect of contact time, growth media and surface properties of the ion-implanted steels on bacterial adhesion was investigated. The experimental results showed that SiF3+-implanted stainless steel performed much better than W-implanted steel, W-implanted steel and untreated stainless steel control on reducing bacterial attachment under identical experimental conditions. (c) 2007 Elsevier B.V. All rights reserved.
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页码：8674 / 8681
页数：8
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