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Direct probing of single-molecule chemiluminescent reaction dynamics under catalytic conditions in solution

Author

Listed:
  • Ziqing Zhang

    (Zhejiang University)

  • Jinrun Dong

    (Zhejiang University)

  • Yibo Yang

    (Zhejiang University)

  • Yuan Zhou

    (Zhejiang University)

  • Yuang Chen

    (Zhejiang University)

  • Yang Xu

    (Zhejiang University)

  • Jiandong Feng

    (Zhejiang University
    Research Institute of Intelligent Sensing, Zhejiang Lab)

Abstract

Chemical reaction kinetics can be evaluated by probing dynamic changes of chemical substrates or physical phenomena accompanied during the reaction process. Chemiluminescence, a light emitting exoenergetic process, involves random reaction positions and kinetics in solution that are typically characterized by ensemble measurements with nonnegligible average effects. Chemiluminescent reaction dynamics at the single-molecule level remains elusive. Here we report direct imaging of single-molecule chemiluminescent reactions in solution and probing of their reaction dynamics under catalytic conditions. Double-substrate Michaelis–Menten type of catalytic kinetics is found to govern the single-molecule reaction dynamics in solution, and a heterogeneity is found among different catalyst particles and different catalytic sites on a single particle. We further show that single-molecule chemiluminescence imaging can be used to evaluate the thermodynamics of the catalytic system, resolving activation energy at the single-particle level. Our work provides fundamental insights into chemiluminescent reactions and offers an efficient approach for evaluating catalysts.

Suggested Citation

  • Ziqing Zhang & Jinrun Dong & Yibo Yang & Yuan Zhou & Yuang Chen & Yang Xu & Jiandong Feng, 2023. "Direct probing of single-molecule chemiluminescent reaction dynamics under catalytic conditions in solution," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43640-1
    DOI: 10.1038/s41467-023-43640-1
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    References listed on IDEAS

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    1. Jinrun Dong & Yuxian Lu & Yang Xu & Fanfan Chen & Jinmei Yang & Yuang Chen & Jiandong Feng, 2021. "Direct imaging of single-molecule electrochemical reactions in solution," Nature, Nature, vol. 596(7871), pages 244-249, August.
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