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. 1984 Mar;47(3):513–518. doi: 10.1128/aem.47.3.513-518.1984

Disinfection of Water with Quaternary Ammonium Salts Insolubilized on a Porous Glass Surface

Yoshihiro Nakagawa 1, Hiroyuki Hayashi 1, Takahiko Tawaratani 1,*, Hiroki Kourai 1, Tokunaru Horie 1, Isao Shibasaki 1
PMCID: PMC239712  PMID: 16346491

Abstract

Insoluble quaternary ammonium salts bound to porous glass showed antibacterial activity. An agent designated as G12, which had a dodecyl alkyl chain, was selected for some antibacterial tests on comparison of it with the agent reported previously. The antibacterial activity of G12 toward Escherichia coli was mainly due to the adsorption of cells and therefore gradually decreased during continuous treatment of a cell suspension. The lost G12 activity was completely recovered by washing with ethanol, and the activity of refreshed G12 decreased in the same manner as that of fresh G12. The lost activity was, however, always recovered only by ethanol treatment. This indicated that G12 might interact with cells more strongly by means of a hydrophobic force than an electrostatic one. The antimicrobial spectrum showed that G12 was effective against not only bacteria but also yeasts.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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