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    Enzymatic time−temperature indicator with cysteine-loaded chitosan microspheres/silver nanoparticles

    A time−temperature indicator (TTI) based on acid−base reaction was developed by applying a new pH dye composed of cysteine-loaded chitosan (Cys-CS) microspheres and silver nanoparticles (AgNPs). It was hypothe...

    Hye Won Cho, Dong Un Shin, Sang Won Kim, Eun Seol Kim in Food Science and Biotechnology (2023)