Facile Synthesis of Enzyme-Embedded Metal–Organic Frameworks for Size-Selective Biocatalysis in Organic Solvent

Yangxin Wang, Ningning Zhang, Deming Tan, Zhenhui Qi, Changzhu Wu*

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Abstrakt

In situ immobilization of enzyme into metal–organic frameworks (MOFs) is performed through a one-step and facile method. Candida antarctica lipase B (CalB) is directly embedded in zeolitic imidazolate framework (ZIF)-8 by simply mixing an aqueous solution of 2-methylimidazole and zinc nitrate hexahydrate [Zn(NO3)2⋅6H2O] containing CalB at room temperature. Due to the intrinsic micropores of ZIF-8, the obtained CalB@ZIF composite is successfully applied in size-selective transesterification reaction in organic solvent. CalB@ZIF not only shows much higher catalytic activity but also exhibits higher thermal stability than free CalB. Besides, the robust ZIF-8 shell also offers the hybrid composites excellent reusability.

OriginalsprogEngelsk
Artikelnummer714
TidsskriftFrontiers in Bioengineering and Biotechnology
Vol/bind8
ISSN2296-4185
DOI
StatusUdgivet - 7. jul. 2020

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