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Tytuł:
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Facet Engineering of Nanoceria for Enzyme-Mimetic Catalysis.
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Autorzy:
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Chen M; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Zhou X; Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China.
Xiong C; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Yuan T; Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia.
Wang W; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Zhao Y; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Xue Z; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Guo W; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Wang Q; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Wang H; Experimental Center of Engineering and Material Science, University of Science and Technology of China, Hefei 230026, China.
Li Y; Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China.
Zhou H; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
Wu Y; First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.; Dalian National Laboratory for Clean Energy, Dalian 116023, China.
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Źródło:
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ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2022 May 18; Vol. 14 (19), pp. 21989-21995. Date of Electronic Publication: 2022 May 03.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Washington, D.C. : American Chemical Society
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MeSH Terms:
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Biomimetics*
Cerium*/chemistry
Catalysis ; Peroxidases
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Contributed Indexing:
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Keywords: crystal facet; enzyme-free; glucose detection; nanoceria; peroxidase-like activity
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Substance Nomenclature:
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30K4522N6T (Cerium)
619G5K328Y (ceric oxide)
EC 1.11.1.- (Peroxidases)
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Entry Date(s):
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Date Created: 20220503 Date Completed: 20220519 Latest Revision: 20220519
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Update Code:
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20240104
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DOI:
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10.1021/acsami.2c04320
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PMID:
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35503925
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Nanomaterials with natural enzyme-mimicking characteristics have aroused extensive attention in various fields owing to their economical price, ease of large-scale production, and environmental resistance. Previous investigations have demonstrated that composition, size, shape, and surface modification play important roles in the enzymelike activity of nanomaterials; however, a fundamental understanding of the crystal facet effect, which determines surface energy or surface reactivity, has rarely been reported. Herein, fluorite cubic CeO 2 nanocrystals with controllably exposed {111}, {100}, or {110} facets are fabricated as proof-of-concept candidates to study the facet effect on the peroxidase-mimetic activity. Both experiments and theoretical results show that {110}-dominated CeO 2 nanorods (CeO 2 NR) possess the highest peroxidase-mimetic activity due to the richest defects on their surfaces, which are beneficial to capture metal atoms to further enrich their artificial enzymatic functionality for cascade catalysis. For instance, the introduction of atomically dispersed Au on CeO 2 NR surfaces not only enhances the peroxidase activity but also endows the obtained catalyst with glucose oxidase (GO x )-mimicking activity, which realizes enzyme-free cascade reactions for glucose colorimetric detection. This work not only provides an understanding for crystal facet engineering of nanomaterials to enhance the catalytic activity but also opens up a new way for the design of biomimetic nanomaterials with multiple functions.