化学
乙二醇
小泡
恐溶剂的
纳米颗粒
模板
胶体金
溶剂
拉曼光谱
高分子化学
纳米技术
化学工程
有机化学
膜
工程类
物理
光学
生物化学
材料科学
作者
Kenichi Niikura,Naoki Iyo,Takeshi Higuchi,Takashi Nishio,Hiroshi Jinnai,Naoki Fujitani,Kuniharu Ijiro
摘要
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.
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