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. 1965 Nov;13(6):956-66.
doi: 10.1128/am.13.6.956-966.1965.

Site of action of certain antibacterial heterocyclic quaternary ammonium compounds

W A Cox

Site of action of certain antibacterial heterocyclic quaternary ammonium compounds

W A Cox. Appl Microbiol. 1965 Nov.

Abstract

The site of action of related mono- and bis-quinaldinium compounds was investigated in Staphylococcus aureus and Bacillus megaterium. The effects of these compounds on cell morphology and on protoplast formation and fragility were studied, and the distribution of C(14)-labeled quinaldinium compound in cell fractions was measured. The latter studies showed that a major part of the quaternary compound penetrates the cell, leaving a very small quantity associated with the cell wall. Similar antibacterial effects were seen with both the mono- and bis-quinaldinium compounds studied, and these effects were comparable with antibacterial properties of known cationic surface-active antibacterial agents.

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References

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