Ceria (CeO2) is a technologically important ceramic material with a wide range of neoteric applications in catalysis1, solid oxide fuel cells2, oxygen gas sensors3, hydrogen production4, and ultraviolet shielding5. Recent research has revealed promising biomedical applications6 of ceria. Nanoparticles of ceria have been shown to protect healthy cells from radiation-induced cellular damage7, 8. The mechanisms governing the radioprotection characteristics of ceria nanoparticles are not well understood and it has been hypothesized that reversible switching between Ce4+ and Ce3+ states may enable ceria nanoparticles to mop up free radicals.
Revised: March 1, 2012 |
Published: January 12, 2012
Citation
Kumar A., R. Devanathan, V. Shutthanandan, S.N. Kuchibhatla, A.S. Karakoti, Y. Yang, and S. Thevuthasan, et al. 2012.Radiation-Induced Reduction of Ceria in Single and Polycrystalline Thin Films.Journal of Physical Chemistry C 116, no. 1:361-366.PNNL-SA-77391.doi:10.1021/jp209345w