Bioinspired Design of Fe<sup>3+</sup>‐Doped Mesoporous Carbon Nanospheres for Enhanced Nanozyme Activity

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  • Yanjuan Sang
    Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P.R. China
  • Yanyan Huang
    Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P.R. China
  • Wei Li
    Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P.R. China
  • Jinsong Ren
    Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P.R. China
  • Xiaogang Qu
    Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 P.R. China

説明

<jats:title>Abstract</jats:title><jats:p>Nanozymes have received considerable attention as alternatives of natural enzymes. However, the catalytic activity of nanozymes is often lower than that of natural enzymes, which largely limits their applications. Current methods utilized to improve the catalytic efficiency and substrate selectivity of a nanozyme usually have some inherent drawbacks. Herein, a biomimetic strategy was developed to design Fe<jats:sup>3+</jats:sup>‐doped mesoporous carbon nanospheres (Fe<jats:sup>3+</jats:sup>‐MCNs) as a horseradish peroxidase (HRP) mimic to realize the structure and function mimicking of natural HRP. In this system, Fe<jats:sup>3+</jats:sup> ions could act as catalytic centers and carboxyl‐modified mesoporous carbon nanospheres (MCNs‐COOH) could be used to bind with substrates. As a result, Fe<jats:sup>3+</jats:sup>‐MCNs showed higher enzymatic activity than that of Fe<jats:sub>3</jats:sub>O<jats:sub>4</jats:sub> nanoparticles. Therefore, this strategy can contribute to the development of nanozymes and further understanding of the complicated enzymatic reactions in natural and biological systems.</jats:p>

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