Yolk/Shell Assembly of Gold Nanoparticles by Size Segregation in Solution.
We demonstrate that binary mixtures of small and large gold nanoparticles (GNPs) (5/15, 5/30, 10/30, and 15/30 nm in diameter) in the presence of a glucose-terminated fluorinated oligo(ethylene glycol) ligand can spontaneously form size-segregated assemblies. The outermost layer of the assembly is c...
| Publicado en: | Journal of the American Chemical Society Vol. 138; no. 10; pp. 3274 - 3278 |
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| Autores principales: | , , , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
3/16/2016
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=114330714&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 114330714 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 3/16/2016 vid: 138 iid: 10 pid: 997 pub: American Chemical Society artinfo: ui: 114330714 10.1021/jacs.5b12456 ppf: 3274 ppct: 4 formats: tig: atl: Yolk/Shell Assembly of Gold Nanoparticles by Size Segregation in Solution. aug: au: Jinjian Wei Kenichi Niikura Takeshi Higuchi Takashi Kimura Hideyuki Mitomo Hiroshi Jinnai Yasumasa Joti Yoshitaka Bessho Yoshinori Nishino Yasutaka Matsuo Kuniharu Ijiro affil: Graduate School of Chemical Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Miyagi 980-8S77, Japan Japan Synchrotron Radiation Research Institute/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan Institute of Physics, Academia Sinica, 128 Sec. 2, Academia Rd., Nankang, Taipei 11529, Taiwan su: Gold nanoparticles Structural shells Molecular self-assembly Metallurgical segregation Solution (Chemistry) Ethylene glycol Binary mixtures sug: subj: Gold nanoparticles Structural shells Molecular self-assembly Metallurgical segregation Solution (Chemistry) Ethylene glycol Binary mixtures ab: We demonstrate that binary mixtures of small and large gold nanoparticles (GNPs) (5/15, 5/30, 10/30, and 15/30 nm in diameter) in the presence of a glucose-terminated fluorinated oligo(ethylene glycol) ligand can spontaneously form size-segregated assemblies. The outermost layer of the assembly is composed of a single layer of small-sized GNPs, while the larger-sized GNPs are located in the interior, forming what is referred to as a yolk/shell assembly. Time course study reveals that small and large GNPs aggregate together, and these kinetically trapped aggregations were transformed into a size-segregated structure by repeating fusions. A yolk/shell structure was directly visualized in solution by X-ray laser diffraction imaging, indicating that the structure was truly formed in solution, but not through a drying process. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2016 holdings: @attributes: islocal: N |
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