title: Collapsed (kippah) hollow silica nanoparticles.
abstract: Novel collapsed kippah-like mesoporous silica nanoparticles were synthesized using an O/W microemulsion system. The oil (hexadecane) can escape from the core while water could not enter through the surfactant filled nanopores of the soft shell during synthesis.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan.
authors.forename: Kun-Che
authors.initials: KC
authors.lastname: Kao
authors.forename: Chieh-Jui
authors.initials: CJ
authors.lastname: Tsou
authors.forename: Chung-Yuan
authors.initials: CY
authors.lastname: Mou