期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 8, 页码 1511-1515出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b918682d
关键词
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资金
- Korea Science and Engineering Foundation (KOSEF) [M10755020001-08N5502-00110]
We synthesized magnetic/silica nanoparticles with a core/shell structure. The average diameter of the spherical particles was approximately 100 nm, and the average thickness of the silica shell was 20 nm. Due to the core of the magnetic clusters, the particles exhibited strong magnetization ( 21 emu/g). To immobilize His-tagged lipase, copper complexes with three different ligands were anchored to the surfaces of the particles. Up to 70% of the initial activity was obtained after three uses. Differences in the enzymatic activity and ligand-dependent reusability are discussed.
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