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Glucose-oxidase like catalytic mechanism of noble metal nanozymes

Author

Listed:
  • Jinxing Chen

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Qian Ma

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Minghua Li

    (Chinese Academy of Sciences)

  • Daiyong Chao

    (Chinese Academy of Sciences)

  • Liang Huang

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Weiwei Wu

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Youxing Fang

    (Chinese Academy of Sciences)

  • Shaojun Dong

    (Chinese Academy of Sciences
    University of Science and Technology of China)

Abstract

Au nanoparticles (NPs) have been found to be excellent glucose oxidase mimics, while the catalytic processes have rarely been studied. Here, we reveal that the process of glucose oxidation catalyzed by Au NPs is as the same as that of natural glucose oxidase, namely, a two-step reaction including the dehydrogenation of glucose and the subsequent reduction of O2 to H2O2 by two electrons. Pt, Pd, Ru, Rh, and Ir NPs can also catalyze the dehydrogenation of glucose, except that O2 is preferably reduced to H2O. By the electron transfer feature of noble metal NPs, we overcame the limitation that H2O2 must be produced in the traditional two-step glucose assay and realize the rapid colorimetric detections of glucose. Inspired by the electron transport pathway in the catalytic process of natural enzymes, noble metal NPs have also been found to mimic various enzymatic electron transfer reactions including cytochrome c, coenzymes as well as nitrobenzene reductions.

Suggested Citation

  • Jinxing Chen & Qian Ma & Minghua Li & Daiyong Chao & Liang Huang & Weiwei Wu & Youxing Fang & Shaojun Dong, 2021. "Glucose-oxidase like catalytic mechanism of noble metal nanozymes," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23737-1
    DOI: 10.1038/s41467-021-23737-1
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    Cited by:

    1. Qiuping Wang & Kui Chen & Hui Jiang & Cai Chen & Can Xiong & Min Chen & Jie Xu & Xiaoping Gao & Suowen Xu & Huang Zhou & Yuen Wu, 2023. "Cell-inspired design of cascade catalysis system by 3D spatially separated active sites," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Long Ma & Jia-Jia Zheng & Ning Zhou & Ruofei Zhang & Long Fang & Yili Yang & Xingfa Gao & Chunying Chen & Xiyun Yan & Kelong Fan, 2024. "A natural biogenic nanozyme for scavenging superoxide radicals," Nature Communications, Nature, vol. 15(1), pages 1-17, December.
    3. Haijiao Dong & Wei Du & Jian Dong & Renchao Che & Fei Kong & Wenlong Cheng & Ming Ma & Ning Gu & Yu Zhang, 2022. "Depletable peroxidase-like activity of Fe3O4 nanozymes accompanied with separate migration of electrons and iron ions," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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