 Oxides such as titanium dioxide, zinc oxide, and cerium oxide have been widely studied due to their potential use in photocatalysis, UV protection, and sunscreen applications. Gas phase and liquid phase synthesis of these oxides have been developed, and methods for deagglomeration and stabilizing them in aqueous and non-aqueous environments have also been explored. These efforts have led to the development of transparent photo catalysts, UV protective coatings, and UV blocking sunscreens. This article was authored by Bertrand For, German Solicitor Alvarez, Anwar Aniyaz, Iroon Villaluenga, Gemma Beriozable, Yolanda Ardemigel, and Lennart Bergstrom.