期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 36, 页码 12620-+出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201501529
关键词
biocatalysis; calcium niobate; domino reactions; nanocomposite hydrogel; radical polymerization
资金
- National Natural Science Foundation of China [21274111, 51473123, 51402215]
- Program for New Century Excellent Talents in University of Ministry of Education of China [NECT-11-0386]
- China Postdoctoral Science Foundation [2014M550245]
- Shanghai Postdoctoral Science Foundation [14R21411200]
- Recruitment Program of Global Experts
The mild preparation of multifunctional nanocomposite hydrogels is of great importance for practical applications. We report that bioinorganic nanocomposite hydrogels, with calcium niobate nanosheets as cross-linkers, can be prepared by dual-enzyme-triggered polymerization and exfoliation of the layered composite. The layered HRP/calcium niobate composites (HRP=horseradish peroxidase) are formed by the assembly of the calcium niobate nanosheets with HRP. The dual-enzyme-triggered polymerization can induce the subsequent exfoliation of the layered composite and final gelation through the interaction between polymer chains and inorganic nanosheets. The self-immobilized HRP-GOx enzymes (GOx=glucose oxidase) within the nanocomposite hydrogel retain most of enzymatic activity. Evidently, their thermal stability and reusability can be improved. Notably, our strategy could be easily extended to other inorganic layered materials for the fabrication of other functional nanocomposite hydrogels.
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