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

2012; Royal Society of Chemistry; Volume: 48; Issue: 19 Linguagem: Inglês

10.1039/c2cc17013b

1364-548X

Jianshuai Mu, Yan Wang, Min Zhao, Li Zhang,

Electrochemical sensors and biosensors

We demonstrate that Co3O4 nanoparticles (NPs) exhibit intrinsic peroxidase-like activity and catalase-like activity. The peroxidase-like activity of the Co3O4 NPs originates from their ability of electron transfer between reducing substrates and H2O2, not from ˙OH radical generated. As peroxidase mimetics, Co3O4 NPs were used for colorimetric determination of H2O2 and glucose.