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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.
This article was published in the following journal.
Name: Chemistry (Weinheim an der Bergstrasse, Germany)
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The branch of medicine concerned with the application of NANOTECHNOLOGY to the prevention and treatment of disease. It involves the monitoring, repair, construction, and control of human biological systems at the molecular level, using engineered nanodevices and NANOSTRUCTURES. (From Freitas Jr., Nanomedicine, vol 1, 1999).
RNA that has catalytic activity. The catalytic RNA sequence folds to form a complex surface that can function as an enzyme in reactions with itself and other molecules. It may function even in the absence of protein. There are numerous examples of RNA species that are acted upon by catalytic RNA, however the scope of this enzyme class is not limited to a particular type of substrate.
Biological molecules that possess catalytic activity. They may occur naturally or be synthetically created. Enzymes are usually proteins, however CATALYTIC RNA and CATALYTIC DNA molecules have also been identified.
Funding resources and procedures for capital improvement or the construction of facilities.
Architecture, exterior and interior design, and construction of facilities other than hospitals, e.g., dental schools, medical schools, ambulatory care clinics, and specified units of health care facilities. The concept also includes architecture, design, and construction of specialized contained, controlled, or closed research environments including those of space labs and stations.
Enzymes are proteins that catalyze (i.e., increase the rates of) chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical re...