Polyelectrolyte Multilayers with Intrinsic Antimicrobial Functionality: The Importance of Mobile Polycations
作者： Jenny A. Lichter , Michael F. Rubner
DOI: 10.1021/LA900349C
关键词:
摘要: Cationic contact-killing is an important strategy for creating antimicrobial surfaces that prevent viable bacteria attachment. Recent studies have shown highly swollen, compliant resist bacterial attachment and a sufficient density of mobile cationic charge can effectively disrupt cell membranes. Polyelectrolyte multilayers (PEMs), popular coating system surface modification, been used to kill through the incorporation or leaching biocides. In this work, we show manipulation multilayer assembly postassembly conditions (e.g., pH) expose create PEMs without addition specific biocidal species. As model system, explored comprising poly(allylamine hydrochloride) (PAH) poly(sodium 4-styrene sulfonate) (SPS) assembled at high pH subsequently immersed in low solutions. This undergoes reversible pH-dependent swelling transition, demonstrate antimicr...
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