期刊
NANOSCALE
卷 6, 期 2, 页码 683-687出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr03657j
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资金
- NSF [0903787]
- University of Mississippi Startup Fund
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1255519] Funding Source: National Science Foundation
A size-dependent transition from molecule-like to plasmonic behaviour is demonstrated in the case of water soluble Au:SG nanomolecules. This was achieved using PAGE separation of smaller and larger nanomolecules, resulting in an unprecedented 26 bands, in a wide-range from 10's to 1000's of Au-atoms. PAGE separation of larger plasmonic nanomolecules is demonstrated for the first time. High resolution ESI-MS, with isotopic resolution, of smaller nanoparticles is reported, including the first time report of Au-43(SG)(26). This report will aid in the fundamental understanding of size-dependent properties of nanomolecules. The synthetic procedure employs a green approach with non-toxic chemicals and processes. The water solubility, non-toxicity and biocompatibility will lead to applications in biomedicine.
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