Stabilizing bienzymatic cascade catalysis via immobilization in ZIF-8/GO composites obtained by GO assisted co-growth

Zhou, Wenfeng and Zhou, Xiaohong and Rao, Yuan and Lin, Rijia and Ge, Lei ORCID: https://orcid.org/0000-0003-2989-0329 and Yang, Pengpeng and Zhang, Hongman and Zhu, Chenjie and Ying, Hanjie and Zhuang, Wei (2022) Stabilizing bienzymatic cascade catalysis via immobilization in ZIF-8/GO composites obtained by GO assisted co-growth. Colloids and Surfaces B: Biointerfaces, 217:112585. pp. 1-11. ISSN 0927-7765


Abstract

Enzyme catalysis has clear advantages in the process of oxidizing glucose to produce gluconic acid. In the enzyme cascade, the improvement of the cascade efficiency is desired but challenging. Graphene oxide (GO) and ZIF-8 composites as enzyme support offer the promising opportunity that not only the cascade efficiency can be improved by control the distance between two enzymes, but also the stability can be improved. Here, a new strategy of GO assisted co-growth of ZIF-8 and enzyme was carried in a one-pot synthesis. Glucose oxidase & catalase immobilized in the ZIF-8/GO composites can obtain 98% residual activity after 15 days of storage with almost no enzyme shedding. The residual activity is still higher than 75% after 5 repeated uses. The presented method of controllable growth of metal organic frameworks on 2D nanosheet can also be extended for renewable energy devices, gas storage and separation of small molecules.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 11 Jul 2022 04:01
Last Modified: 11 Jul 2022 04:01
Uncontrolled Keywords: Assisted co-growth; Enzyme cascade; Enzyme immobilization; Graphene oxide; ZIF-8/GO nanocomposites
Fields of Research (2020): 40 ENGINEERING > 4004 Chemical engineering > 400406 Powder and particle technology
34 CHEMICAL SCIENCES > 3402 Inorganic chemistry > 340207 Metal organic frameworks
40 ENGINEERING > 4004 Chemical engineering > 400408 Reaction engineering (excl. nuclear reactions)
Identification Number or DOI: https://doi.org/10.1016/j.colsurfb.2022.112585
URI: http://eprints.usq.edu.au/id/eprint/49445

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