The two oxidation states of ceria nanoparticles, Ce3+ and Ce4+, play a pivotal role in
scavenging reactive oxygen species (ROS). In particular, Ce3+ is largely responsible for
removing O2− and. OH that are associated with inflammatory response and cell death. The
synthesis is reported of 2 nm ceria–zirconia nanoparticles (CZ NPs) that possess a higher
Ce3+/Ce4+ ratio and faster conversion from Ce4+ to Ce3+ than those exhibited by ceria
nanoparticles. The obtained Ce0. 7Zr0. 3O2 (7CZ) NPs greatly improve ROS scavenging …

The two oxidation states of ceria nanoparticles, Ce 3+ and Ce 4+, play a pivotal role in
scavenging reactive oxygen species (ROS). In particular, Ce 3+ is greatly responsible for
eliminating O 2-and ㆍ OH that are associated with inflammatory response and cell death.
Here, we report the synthesis of 2 nm ceria-zirconia nanoparticles (CZ NPs) possessing a
higher ratio of Ce 3+-to-Ce 4+ and faster shifting from Ce 4+ to Ce 3+ than those exhibited
by ceria nanoparticles. The obtained Ce 0.7 Zr 0.3 O 2 (7CZ) NPs markedly enhance their …