Multi-compartmental MOF microreactors derived from Pickering double emulsions for chemo-enzymatic cascade catalysis

Danping Tian, Ruipeng Hao, Xiaoming Zhang (), Hu Shi, Yuwei Wang, Linfeng Liang, Haichao Liu () and Hengquan Yang ()
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Danping Tian: Shanxi University
Ruipeng Hao: Shanxi University
Xiaoming Zhang: Shanxi University
Hu Shi: Shanxi University
Yuwei Wang: Shanxi University
Linfeng Liang: Shanxi University
Haichao Liu: Peking University
Hengquan Yang: Shanxi University

Nature Communications, 2023, vol. 14, issue 1, 1-14

Abstract: Abstract Bioinspired multi-compartment architectures are desired in synthetic biology and metabolic engineering, as credited by their cell-like structures and intrinsic ability of assembling catalytic species for spatiotemporal control over cascade reactions like in living systems. Herein, we describe a general Pickering double emulsion-directed interfacial synthesis method for the fabrication of multicompartmental MOF microreactors. This approach employs multiple liquid–liquid interfaces as a controllable platform for the self-completing growth of dense MOF layers, enabling the microreactor with tailor-made inner architectures and selective permeability. Importantly, simultaneous encapsulation of incompatible functionalities, including hydrophilic enzyme and hydrophobic molecular catalyst, can be realized in a single MOF microreactor for operating chemo-enzymatic cascade reactions. As exemplified by the Grubb’ catalyst/CALB lipase driven olefin metathesis/ transesterification cascade reaction and glucose oxidase (GOx)/Fe-porphyrin catalyzed oxidation reaction, the multicompartmental microreactor exhibits 2.24–5.81 folds enhancement in cascade reaction efficiency in comparison to the homogeneous counterparts or physical mixture of individual analogues, due to the restrained mutual inactivation and substrate channelling effects. Our study prompts further design of multicompartment systems and the development of artificial cells capable of complex cellular transformations.

Date: 2023
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DOI: 10.1038/s41467-023-38949-w

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