
Cerium oxide nanoparticles or nanostructured cerium oxide is rare earth metal oxide which plays technologically important role due to its versatile applications. They are synthetized by solution-based methods such as hydrothermal, co-precipitation, and others. In the recent years, cerium oxide nanoparticles have been gaining increasing application in biomedical research involving various therapeutic aspects. This is likely to augur well with the growth of cerium oxide nanoparticles market. The demand for cerium oxide nanoparticles in medical field is rapidly expanding for its ability to reduce the symptoms of many oxidative stress-related diseases including chronic inflammation, diabetes, and others. In the automotive industry, cerium oxide nanoparticles are used as fuel additive and catalyst converter.