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论文类型： 期刊论文

发表时间： 2017-01-01

发表刊物： RSC ADVANCES

收录刊物： SCIE

卷号： 7

期号： 22

页面范围： 13244-13249

ISSN号： 2046-2069

摘要： The recently developed quaternary ammonium (QA) N-chloramine has been proved to be a promising "composite" biocide with drastically boosted antibacterial efficacy afforded by the QA moiety. In this work, a series of quaternary phosphonium (QP) N-chloramine biocides, covalently combining an N-chloramine moiety and a QP moiety via varied aliphatic methylene units, were synthesized by means of multi-step chemical reactions. Preliminary antibacterial tests against both Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) showed that the synthetic QP N-chloramine exhibited distinctively higher biocidal efficacy than the QA counterpart. Furthermore, bactericidal tests also indicated that QP N-chloramine with a linker of -(CH2)(12)-showed the highest biocidal efficacy, suggesting synergistic action between the N-chloramine moiety and QP moiety.