Nanoceria exhibit redox state-dependent catalase mimetic activity.
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.
Pirmohamed
Talib
T
Burnett School of Biomedical Science, 4000 Central Florida Blvd., Bldg. 20 Room 124, Orlando, Florida, USA.
Dowding
Janet M
JM
Singh
Sanjay
S
Wasserman
Brian
B
Heckert
Eric
E
Karakoti
Ajay S
AS
King
Jessica E S
JE
Seal
Sudipta
S
Self
William T
WT
D032701:Biomimetics; D002374:Catalase / Q000737:chemistry*; D002563:Cerium / Q000737:chemistry*; D016166:Free Radical Scavengers / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction
D016166:Free Radical Scavengers; D002563:Cerium; D002374:Catalase