Intrinsic peroxidase-like activity and catalase-like activity of Co3O4 nanoparticles

Chem Commun (Camb). 2012 Mar 4;48(19):2540-2. doi: 10.1039/c2cc17013b. Epub 2012 Jan 30.


We demonstrate that Co(3)O(4) nanoparticles (NPs) exhibit intrinsic peroxidase-like activity and catalase-like activity. The peroxidase-like activity of the Co(3)O(4) NPs originates from their ability of electron transfer between reducing substrates and H(2)O(2), not from ˙OH radical generated. As peroxidase mimetics, Co(3)O(4) NPs were used for colorimetric determination of H(2)O(2) and glucose.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biomimetic Materials / chemistry*
  • Catalase / metabolism*
  • Cobalt / chemistry*
  • Electrochemistry
  • Nanoparticles / chemistry*
  • Oxides / chemistry*
  • Peroxidase / metabolism*


  • Oxides
  • Cobalt
  • Catalase
  • Peroxidase
  • cobalt oxide