Covalent Organic Framework Nanosheets for the Assembly of Efficient Membrane Bioreactors
Immobilizing fragile enzymes in porous materials holds significant potential for biocatalysis but encounters challenges such as mismatched enzyme size and pore structure of host materials, along with harsh assembly conditions that can denature enzymes. Herein, we present a versatile strategy for constructing membrane bioreactors through water-mediated, vacuum-assisted layer-by-layer assembly of covalent organic framework (COF) nanosheets with enzymes. This method effectively addresses pore size limitations, preserves enzyme activity, and promotes convective transport of reactants to active sites, while shielding enzymes from harmful by-products through rapid transport in continuous membrane catalysis. The optimized bioreactor achieves a 1018-fold increase in relative activity compared to free enzymes in batch reactions, completing substrate conversion in just 7.95 s, and demonstrating enhanced stability.
Authors
- Xiangju Meng (ORCID: https://orcid.org/0000-0001-8740-2755)
- Qi Sun (ORCID: https://orcid.org/0000-0001-9230-3487)
- Di Wu (ORCID: https://orcid.org/0000-0002-4997-5082)
- Zhiwei Xing (ORCID: https://orcid.org/0000-0003-3727-6767)
- J. G. Han (ORCID: https://orcid.org/0009-0004-2989-8085)
- Yubing Xiong (ORCID: https://orcid.org/0000-0001-6657-2595)
- Shengqian Ma (ORCID: https://orcid.org/0000-0002-1897-7069)
- Zhifeng Dai (ORCID: https://orcid.org/0000-0002-0733-8317)
- Zhuozhi Lai
- Xiaoxiao Cheng (ORCID: https://orcid.org/0000-0002-0354-6928)
- Qing Guo (ORCID: https://orcid.org/0000-0002-5417-8846)
- Feng-Shou Xiao
Institutions
- University of North Texas (US)
- Zhejiang Sci-Tech University (CN)
- Zhejiang University of Technology (CN)
- Zhejiang University (CN)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2025-04-30
- DOI
- https://doi.org/10.1002/anie.202505797
- Citations
- 4
- Primary Topic
- Covalent Organic Framework Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.07
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China