期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 17, 页码 4510-4515出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201800681
关键词
antioxidants; crystal facets; glutathione peroxidase; nanozymes; oxidative stress
资金
- Science and Engineering Research Board [EMR/IISc-01/2016]
- DST Nanomission, New Delhi [SR/NM/NS-1380/2014]
- BIRAC
- SERB/DST
- Indian Institute Science, Bangalore
- CSIR, New Delhi
Nanomaterials with enzyme-like activity (nanozymes) attract significant interest owing to their applications in biomedical research. Particularly, redox nanozymes that exhibit glutathione peroxidase (GPx)-like activity play important roles in cellular signaling by controlling the hydrogen peroxide (H2O2) level. Herein we report, for the first time, that the redox properties and GPx-like activity of V2O5 nanozyme depends not only on the size and morphology, but also on the crystal facets exposed on the surface within the same crystal system of the nanomaterials. These results suggest that the surface of the nanomaterials can be engineered to fine-tune their redox properties to act as nanoisozymes for specific biological applications.
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