Microwave-hydrothermal synthesis of stable nanocrystalline ceria sols for biomedical uses

A new microwave-hydrothermal process has been developed for preparing stable aqueous sols of nanocrystalline ceria. Transmission electron microscopy, UV-Vis spectroscopy, and dynamic light scattering shows that CeO2 nanoparticle size remains unchanged during hydrothermal treatments. Sodium adenosine triphosphate and sodium citrate are proposed for additional stabilization of the sols.