ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

CeVO4 Nanozymes Catalyze the Reduction of Dioxygen to Water without Releasing Partially Reduced Oxygen Species

Singh, Namrata and Mugesh, Govindasamy (2019) CeVO4 Nanozymes Catalyze the Reduction of Dioxygen to Water without Releasing Partially Reduced Oxygen Species. In: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 58 (23). pp. 7797-7801.

[img] PDF
ang_che_int_edi_58-23_7797_2019.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy
Official URL: https://dx.doi.org/10.1002/anie.201903427

Abstract

In this study, we report a remarkably active CeVO4 nanozyme that functionally mimics cytochromec oxidase (CcO), the terminal enzyme in the respiratory electron transport chain, by catalyzing a four-electron reduction of dioxygen to water. The nanozyme catalyzes the reaction by using cytochromec (Cyt c), the biological electron donor for CcO, at physiologically relevant pH. The CcO activity of the CeVO4 nanozymes depends on the relative ratio of surface Ce3+/Ce4+ ions, the presence of V5+ and the surface-Cytc interactions. The complete reduction of oxygen to water takes place without release of any partially reduced oxygen species (PROS) such as superoxide, peroxide and hydroxyl radicals.

Item Type: Journal Article
Additional Information: copyright for this article belongs to WILEY-V C H VERLAG GMBH
Keywords: cytochromec oxidase; dioxygen reduction; nanozymes; oxidative stress; superoxide dismutase
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Depositing User: Id for Latest eprints
Date Deposited: 29 Aug 2019 06:05
Last Modified: 29 Aug 2019 06:05
URI: http://eprints.iisc.ac.in/id/eprint/63328

Actions (login required)

View Item View Item