MitMAB, an organic building block and cationic surfactant, is a dynamin inhibitor that inhibits the GTPase activity of dynamin I (Ki = 940 nM; IC50 = 3.1 _M). It has been used in a study to assess a surfactant-controlled synthetic method to obtain a nanophase of mesoporous ceria-zirconia solid solution containing cationic defects in the crystalline structure.