Nanoceria exhibit redox state-dependent catalase mimetic activity

Chem Commun (Camb). 2010 Apr 28;46(16):2736-8. doi: 10.1039/b922024k. Epub 2010 Mar 11.

Abstract

In this study we have found that cerium oxide nanoparticles exhibit catalase mimetic activity. Surprisingly, the catalase mimetic activity correlates with a reduced level of cerium in the +3 state, in contrast to the relationship between surface charge and superoxide scavenging properties.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Biomimetics*
  • Catalase / chemistry*
  • Cerium / chemistry*
  • Free Radical Scavengers / chemistry*
  • Nanoparticles / chemistry*
  • Oxidation-Reduction

Substances

  • Free Radical Scavengers
  • Cerium
  • Catalase