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Hydrophobic polycations previously developed by us efficiently kill E. coli and Staphylococcus aureus on contact. As visualized by electron microscopy herein, these pathogenic bacteria incur marked morphological damage from the exposure to these N-alkylated-polyethylenimine “paints” which results in the leakage of an appreciable fraction of the total cellular protein. The quantity and composition...
In this work, we designed contact-killing ionically cross-linked polymeric thin films using Layer-by-Layer (LbL) technology. A polycation, N,N-dodecyl,methyl-polyethylenimine, with microbicidal activity was layered with a polyanion, such as poly(acrylic acid), to create LbL films highly effective against both airborne and waterborne Escherichia coli and Staphylococcus aureus (Gram negative and positive...
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