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  • GOx@ZIF‐8(NiPd) Nanoflower:...
    Wang, Qingqing; Zhang, Xueping; Huang, Liang; Zhang, Zhiquan; Dong, Shaojun

    Angewandte Chemie International Edition, December 11, 2017, Volume: 56, Issue: 50
    Journal Article

    We report a facile approach to prepare an artificial enzyme system for tandem catalysis. NiPd hollow nanoparticles and glucose oxidase (GOx) were simultaneously immobilized on the zeolitic imidazolate framework 8 (ZIF‐8) via a co‐precipitation method. The as‐prepared GOx@ZIF‐8(NiPd) nanoflower not only exhibited the peroxidase‐like activity of NiPd hollow nanoparticles but also maintained the enzymatic activity of GOx. A colorimetric sensor for rapid detection of glucose was realized through the GOx@ZIF‐8(NiPd) based multi‐enzyme system. Moreover, the GOx@ZIF‐8(NiPd) modified electrode showed good bioactivity of GOx and high electrocatalytic activity for the oxygen reduction reaction (ORR), which could also be used for electrochemical detection of glucose. Flower power: NiPd hollow nanoparticles and glucose oxidase (GOx) were simultaneously immobilized on a ZIF‐8 metal–organic framework via a co‐precipitation method. The resulting artificial enzyme system maintains the GOx activity and also has oxygen reduction reaction (ORR) reactivity, building a bridge between nanozymes and natural enzymes.