CoO Nanozymes with Multiple Catalytic Activities Regulate Atopic Dermatitis

Mao Mao, Xuejiao Guan, Feng Wu, Lan Ma

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Herein, we prepared CoO nanozymes with three types of enzyme catalytic activities for the first time, which have SOD-like, CAT-like, and POD-like catalytic activities. This is the first study to report the preparation of CoO nanoparticles with three types of enzyme catalytic activities by the one-pot method. By modifying the surface of CoO nanozymes with a carboxyl group, its biocompatibility enhanced, so it can be used in the field of life sciences. In vitro cytotoxicity and anti-H2 O2-induced ROS experiments proved that CoO nanozymes can protect HaCaT cells against ROS and cytotoxicity induced by H2 O2 . In addition, an atopic dermatitis (AD) mouse model was established by topical application of MC903, which verified the anti-inflammatory effect of CoO nanozymes on the AD mouse model. Traditional drugs for the treatment of AD, such as dexamethasone, have significant side-effects. The side-effects include skin burns, telangiectasias, and even serious drug dependence. CoO nano-enzymes have a low cytotoxicity and its multiple enzyme-like catalytic activities can effectively protect cells and tissues in ROS environments, which proves that CoO nano-enzymes have high application potential in the field of anti-inflammation.

Original languageEnglish (US)
Article number638
Issue number4
StatePublished - Feb 14 2022


  • Atopic dermatitis
  • CoO
  • Enzyme-like catalytic activity
  • Nanozyme

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)


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