Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 50, Pages 16082-16085Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201710418
Keywords
artificial enzymes; glucose detection; metal-organic frameworks (MOFs); nanoparticles; oxygen reduction reaction (ORR)
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Funding
- National Natural Science Foundation of China [21375123, 21675151]
- Ministry of Science and Technology of China [2013YQ170585, 2016YFA0203201]
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We report a facile approach to prepare an artificial enzyme system for tandem catalysis. NiPd hollow nanoparticles and glucose oxidase (GOx) were simultaneously immobilized on the zeolitic imidazolate framework8 (ZIF-8) via a co-precipitation method. The as-prepared GOx@ZIF-8(NiPd) nanoflower not only exhibited the peroxidase-like activity of NiPd hollow nanoparticles but also maintained the enzymatic activity of GOx. A colorimetric sensor for rapid detection of glucose was realized through the GOx@ZIF-8(NiPd) based multi-enzyme system. Moreover, the GOx@ZIF-8(NiPd) modified electrode showed good bioactivity of GOx and high electrocatalytic activity for the oxygen reduction reaction (ORR), which could also be used for electrochemical detection of glucose.
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