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Construction of Supramolecular Nanostructures with High Catalytic Activity by Photo-Induced Hierarchical Co-Assembly.

08:00 EDT 11th April 2019 | BioPortfolio

Summary of "Construction of Supramolecular Nanostructures with High Catalytic Activity by Photo-Induced Hierarchical Co-Assembly."

Inspired by natural enzymes, hierarchical catalytic supramolecular nanostructures were developed by the co-assembly of hemin and glucose oxidase (or Au NPs) with the photo-sensitive Fc-Y molecule. Illuminated by white light, the Fc-Y molecules would be polymerized and co-assemble with hemin into truncated polyhedrons. And the Au NPs could in situ grow at the surface of the co-assembled polyhedrons, achieving the ordered supramolecular nanostructures. Because the Au NPs can serve as artificial glucose oxidase and the hemin could act as peroxidase mimics, the supramolecular hybrid nanostructures were used to mimic the natural enzymes and catalyze the cascade reaction. The hybrid Au NPs@Fc-Y&hemin polyhedrons showed the superior catalytic activity, good reusability, and maintained the catalytic activity over a wide temperature and pH range. The study develops a feasible strategy to construct the hierarchical co-assembled supramolecular nanostructures as multi-enzyme mimics, with great potential applications in biocatalysis and biosensing.

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Name: Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
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