4.6 Article

Synthesis-temperature-regulated multi-enzyme-mimicking activities of ceria nanozymes

期刊

JOURNAL OF MATERIALS CHEMISTRY B
卷 9, 期 35, 页码 7238-7245

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tb00964h

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资金

  1. National Key R&D Program of China [2019YFA0709200]
  2. National Natural Science Foundation of China [21874067, 91859112]
  3. CAS Interdisciplinary Innovation Team [JCTD-2020-08]
  4. PAPD program
  5. Fundamental Research Funds for the Central Universities [14380145]
  6. Major R&D Projects of Jiangxi Province [20194ABC28009]

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In this study, the multi-enzyme-mimicking activities of CeO2 were regulated by a wet-chemical method at different synthesis temperatures, showing distinct responses to different temperatures. The regulation was attributed to the comprehensive effect of the oxygen species, size, and self-restoring abilities of CeO2. High-performance CeO2 can be rationally designed by a specific synthesis temperature, and guidelines from radar chart analysis can promote the biomedical applications of ceria-based nanozymes.
Ceria (CeO2) nanozymes have drawn much attention in recent years due to their unique physiochemical properties and excellent biocompatibility. It is therefore very important to establish a simple and robust guideline to regulate CeO2 with desired multi-enzyme-mimicking activities that are ideal for practical bioapplications. In this work, the multi-enzyme-mimicking activities of CeO2 were regulated in a facile manner by a wet-chemical method with different synthesis temperatures. Interestingly, a distinct response in multi-enzyme-mimicking activities of CeO2 was observed towards different synthesis temperatures. And the regulation was ascribed to the comprehensive effect of the oxygen species, size, and self-restoring abilities of CeO2. This study demonstrates that high-performance CeO2 can be rationally designed by a specific synthesis temperature, and the guidelines from radar chart analysis established here can advance the biomedical applications of ceria-based nanozymes.

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