Novel Immunosensor Based on Metal Single-Atom Nanozymes with Enhanced Oxidase-Like Activity for Capsaicin Analysis in Spicy Food
Shaoyi Yu,
Pei Jia,
Keyu Xing
et al.
Abstract:Capsaicin (CAP) is a primary indicator for assessing the level of pungency. Herein, iron-based single-atom nanozymes (SAzymes) (Fe/NC) with exceptional oxidase-like activity were used to construct an immunosensor for CAP analysis. Fe/NC could imitate oxidase actions by transforming O 2 to • O 2 − radicals in the absence of hydrogen peroxide (H 2 O 2 ), which could avoid complex operations and unstable results. By regulating the Fe atom loads, an optimal Fe 0.7 /NC atom usage rate could improve the catalytic ac… Show more
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