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A ready-to-use l-ascorbic acid (l−AA) colorimetric strip based on polyaniline (PANI)/polyamide 66 (PA 66) nanofiber/net (NFN) membrane with spider-web-like structure was fabricated through a facile bend electrospinning/netting process. Introduction of PANI component into the membrane turns the strip undergoes a brilliant brown-to-green color transition within 30min upon incubation with l-AA. Moreover,...
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