Imparting Functionality to Biocatalysts via Embedding Enzymes into Nanoporous Materials by a de Novo Approach: Size-Selective Sheltering of Catalase in Metal …
Journal of the American Chemical Society, 2015•ACS Publications
We develop a new concept to impart new functions to biocatalysts by combining enzymes
and metal–organic frameworks (MOFs). The proof-of-concept design is demonstrated by
embedding catalase molecules into uniformly sized ZIF-90 crystals via a de novo approach.
We have carried out electron microscopy, X-ray diffraction, nitrogen sorption,
electrophoresis, thermogravimetric analysis, and confocal microscopy to confirm that the∼
10 nm catalase molecules are embedded in 2 μm single-crystalline ZIF-90 crystals with∼ 5 …
and metal–organic frameworks (MOFs). The proof-of-concept design is demonstrated by
embedding catalase molecules into uniformly sized ZIF-90 crystals via a de novo approach.
We have carried out electron microscopy, X-ray diffraction, nitrogen sorption,
electrophoresis, thermogravimetric analysis, and confocal microscopy to confirm that the∼
10 nm catalase molecules are embedded in 2 μm single-crystalline ZIF-90 crystals with∼ 5 …
We develop a new concept to impart new functions to biocatalysts by combining enzymes and metal–organic frameworks (MOFs). The proof-of-concept design is demonstrated by embedding catalase molecules into uniformly sized ZIF-90 crystals via a de novo approach. We have carried out electron microscopy, X-ray diffraction, nitrogen sorption, electrophoresis, thermogravimetric analysis, and confocal microscopy to confirm that the ∼10 nm catalase molecules are embedded in 2 μm single-crystalline ZIF-90 crystals with ∼5 wt % loading. Because catalase is immobilized and sheltered by the ZIF-90 crystals, the composites show activity in hydrogen peroxide degradation even in the presence of protease proteinase K.
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