title: Gold nanoparticles coated with semi-fluorinated oligo(ethylene glycol) produce sub-100 nm nanoparticle vesicles without templates.
abstract: Gold nanoparticles (NPs) with diameters of 5, 10, and 20 nm coated with semifluorinated oligo(ethylene glycol) ligands were formed into sub-100 nm hollow NP assemblies (NP vesicles) in THF without the use of a template. The NP vesicles maintained their structure even after the solvent was changed from THF to other solvents such as butanol or CH(2)Cl(2). NMR analyses indicated that the fluorinated ligands are bundled on the NPs and that the solvophobic feature of the fluorinated bundles is the driving force for NP assembly. The formed NP vesicles were surface-enhanced Raman scattering-active capsules.
authors.affiliation: Research Institute for Electronic Science, Hokkaido University, Kita 21, Nishi 10, Kita-Ku, Sapporo 001-0021, Japan. kniikura@poly.es.hokudai.ac.jp
authors.forename: Kenichi
authors.initials: K
authors.lastname: Niikura
authors.forename: Naoki
authors.initials: N
authors.lastname: Iyo
authors.forename: Takeshi
authors.initials: T
authors.lastname: Higuchi
authors.forename: Takashi
authors.initials: T
authors.lastname: Nishio
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Jinnai
authors.forename: Naoki
authors.initials: N
authors.lastname: Fujitani
authors.forename: Kuniharu
authors.initials: K
authors.lastname: Ijiro