Congratulations to Dr. J. Manuel Perez and his group for their recent paper in Angewandte Chemie titled “Oxidase-like activity of polymer coated cerium oxide nanoparticles.” In this paper, the authors report the use of cerium oxide nanoparticles as a versatile aqueous redox catalyst that can oxidize a series of compounds without the need of hydrogen peroxide. This finding can be used in the design of simpler and less expensive immunoassays to detect cancer cells and potentially bacteria. This work is featured in the Communication’s cover of the journal and also in the Science and Technology Concentrate section of the February 16 edition of Chemical and Engineering News (C&EN).