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Selenium-functionalized metal-organic frameworks as enzyme mimics
Nano Research 2018, 11(10): 5761-5768
Published: 03 October 2018
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The development of artificial enzyme mimics has been rapidly growing in recent years, and it is attracting increasing attention owing to their remarkable advantages over natural enzymes. Herein, we developed a general and facile method to fabricate efficient glutathione peroxidase (GPx) mimics by grafting selenium-containing molecules (phenylselenylbromide, PhSeBr) to a Zr(IV)-based UiO-66-NH2 framework. In the presence of glutathione (GSH) serving as substrate, the fabricated UiO-66-Se catalysts can catalyze the reduction of hydroperoxides. The as-prepared UiO-66-Se systems show good catalytic activity over three cycles. These high-efficiency GPx mimic metal-organic frameworks (MOFs) are endowed with excellent thermal and structural stability, providing a promising avenue for the development of artificial enzyme mimics.

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