Title :
Study on electro-bactericidal effect of the metal coating flat sheet membrane for Pseudomonas aeruginosa
Author :
Sugawara, T. ; Kimura, K. ; Misawa, K. ; Arisawa, J. ; Igarashi, O.
Author_Institution :
Dept. of Appl. Electron., Hokkaido Inst. of Technol., Sapporo, Japan
fDate :
29 Oct-1 Nov 1998
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
Keywords :
biocontrol; bioelectric phenomena; biological techniques; membranes; microorganisms; AC electric current; DC electric current; Pseudomonas aeruginosa; artificially trapped bacteria; bacterial control system; bactericidal activity; electro-bactericidal effect; metal coating flat sheet membrane; pathogen to opportunistic infection; sterilization; Biomembranes; Coatings; Current; Electronics industry; Electrons; Hospitals; Industrial electronics; Metals industry; Microorganisms; Pathogens;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745637
