Bacterial inhibiting surfaces caused by the effects of silver release and/or electrical field

被引：11

作者：

Chiang, Wen-Chi ^{[1
]}

Hilbert, Lisbeth Rischel ^{[1
]}

Schroll, Casper ^{[2
]}

Tolker-Nielsen, Tim ^{[2
]}

Moller, Per ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Mfg Engn & Management, DK-2800 Lyngby, Denmark

[2] Tech Univ Denmark, BioCtr, DK-2800 Lyngby, Denmark

来源：

ELECTROCHIMICA ACTA | 2008年 / 54卷 / 01期

关键词：

Bacterial inhibiting surface; Silver; Palladium; Electrical field; Galvanic reaction;

D O I：

10.1016/j.electacta.2008.02.112

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, silver-palladium surfaces and silver-bearing stainless steels were designed and investigated focusing on electrochemical principles to form inhibiting effects on planktonic and/or biofilm bacteria in water systems. Silver-resistant Escherichia coli and silver-sensitive E. coli were used for the evaluation of inhibiting effects and the inhibiting mechanism. For silver-palladium surfaces combined with bacteria in media, the inhibiting effect was a result of electrochemical interactions and/or electrical field, and in some specific media, such as ammonium containing, undesired silver ions release can occur from their Surfaces. For silver-bearing stainless steels, the inhibiting effect can only be explained by high local silver ions release. and can be limited or deactivated dependent on the specific environment. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：108 / 115

页数：8

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