Title

Redox-active radical scavenging nanomaterials

Authors

Authors

A. Karakoti; S. Singh; J. M. Dowding; S. Seal;W. T. Self

Comments

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Abbreviated Journal Title

Chem. Soc. Rev.

Keywords

CERIUM OXIDE NANOPARTICLES; RARE-EARTH-ELEMENTS; DISMUTASE MIMETIC; PROPERTIES; HYDROGEN-PEROXIDE; OXIDATIVE STRESS; SUPEROXIDE-DISMUTASE; OXYGEN VACANCIES; NITRIC-OXIDE; GLUTATHIONE-PEROXIDASE; NANOCRYSTALLINE; CERIA; Chemistry, Multidisciplinary

Abstract

Reactive oxygen and nitrogen species play a critical role in many degenerative diseases and in aging. Nanomaterials, especially modified fullerenes and cerium oxide nanoparticles, have been shown to effectively protect mammalian cells against damage caused by increased reactive oxygen or nitrogen species, likely through their direct reaction with superoxide radical, since each of these materials has been shown to act as effective superoxide dismutase mimetics in vitro. This critical review discusses the chemistry of these nanomaterials and the context in which their radical scavenging activities have been studied in biological model systems. Current studies are focused on determining the uptake, metabolism, distribution, toxicity and fate of these nanomaterials in cell and animal model systems. Ultimately if shown to be safe, these nanomaterials have the potential to be used to reduce the damaging effects of radicals in biological systems (101 references).

Journal Title

Chemical Society Reviews

Volume

39

Issue/Number

11

Publication Date

1-1-2010

Document Type

Review

Language

English

First Page

4422

Last Page

4432

WOS Identifier

WOS:000283141300028

ISSN

0306-0012

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