Journal
ADVANCED HEALTHCARE MATERIALS
Volume 1, Issue 5, Pages 609-620Publisher
WILEY
DOI: 10.1002/adhm.201200018
Keywords
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Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN/372048-2009]
- Manitoba Health Research Council (MHRC)
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Considering the rise of antibiotic resistance, the development of new antibacterial agents with improved biocidal functions is urgently required. In this study, ionic 5,5-dimethylhydantoin (DMH) analogues containing either a quaternary ammonium moiety (2)-4) or a phosphonate functional group (5),-6), were designed and synthesized to investigate the possible enhancing effect of quaternary ammonium moieties on the antibacterial performance of N-chloramines. These ionic DMH analogues were converted to their N-chloramine counterparts either in free form or after being covalently immobilized on a polymer surface via the click chemistry method. In the subsequent antimicrobial assessment against multi-drug-resistant Escherichia coli (MDR-E. coli) and methicillin-resistant Staphylococcus aureus (MRSA), chlorinated 2 and 3, the cyclic N-chloramines with a structural cation, exhibited distinctly enhanced biocidal functions in solution and after immobilization on surfaces.
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