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. 2012 May 18;48(40):4896-8.
doi: 10.1039/c2cc30485f. Epub 2012 Apr 12.

Cerium oxide nanoparticles scavenge nitric oxide radical (˙NO)

Janet M Dowding  1 , Talib Dosani, Amit Kumar, Sudipta Seal, William T Self
Affiliations

Cerium oxide nanoparticles scavenge nitric oxide radical (˙NO)

Janet M Dowding et al. Chem Commun (Camb). .

Abstract

In this study we have obtained evidence that cerium oxide nanoparticles (CeO(2) NPs) are able to scavenge nitric oxide radical. Surprisingly, this activity is present in CeO(2) NPs with a lower level of cerium in the 3+ state (CeO(2) NPs with low 3+/4+ ratio and therefore a reduced number of oxygen vacancies), in contrast to the superoxide scavenging properties which are correlated with an increased level of cerium in the 3+ state (CeO(2) NPs with high 3+/4+ ratio and therefore an increased number of oxygen vacancies).

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