Study on electro-bactericidal effect of the metal coating flat sheet membrane for Pseudomonas aeruginosa

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI:10.1109/IEMBS.1998.745637

T. Sugawara, K. Kimura, K. Misawa, J. Arisawa, O. Igarashi

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Abstract

A newly designated metal coating flat sheet membrane was examined for bactericidal activity using Pseudomonas aeruginosa which was recognized as a pathogen to opportunistic infection in hospitals. After the bacteria were artificially trapped into the membrane, an electric current was passed through the surface of the membrane. More than 90% of bacteria were reduced by the passing electric current, comparing with non-electric current control. The kinds of electric current were also tested for their bactericidal activities. Both direct current (DC) and alternating current (50 Hz AC) showed same bactericidal activity for Pseudomonas aeruginosa. Furthermore, steam was observed when an electric current was applied. From these observations, we considered that the application of DC or 50 Hz AC electric current to the metal coating flat sheet membrane could sterilize bacteria which was mechanically trapped, due to heat generation with electric current application.

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金属涂层平板膜对铜绿假单胞菌电杀菌效果的研究

采用铜绿假单胞菌(Pseudomonas aeruginosa)对一种新型金属涂层平板膜进行了抑菌活性研究。细菌被人工捕获到膜中后，电流通过膜的表面。与非电流控制相比，通过电流控制可减少90%以上的细菌。并对各种电流的杀菌活性进行了测试。直流(DC)和交流(50 Hz AC)对铜绿假单胞菌的杀菌活性相同。此外，当施加电流时，可以观察到蒸汽。从这些观察结果来看，我们认为在金属涂层平板膜上施加直流或50 Hz交流电流可以对由于电流产生热量而被机械捕获的细菌进行灭菌。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286)

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