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A schematic illustration of poly[2-((4,5-dimethoxy-2-nitrobenzyl)oxy)-N-(2-(methacryloyloxy)ethyl)-N,N-dimethyl-2-oxoethan-1-aminium] hydrogel surfaces switching from cationic antimicrobial to zwitterionic antifouling form upon UV photolysis. Reprinted with permission from ref. [212]. Copyright 2019 American Chemical Society.
