Schematic of preparation,
mechanisms, and design of pH-monitorable wound healing dressing with
antimicrobial activity. (a)Â Amino acid-mediated surface modification process. (b)Â Mechanism of antimicrobial activity of basic amino
acid-modified surfaces. (c)Â Schematic illustration of design of pH-monitorable
wound healing dressing devices comprising basic amino-acid-modified polyimide
(PI) film