Reduced reactivity of aged Au nanoparticles in ligand exchange reactions

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Solutions of alkanethiol-protected Au nanoparticles undergo a slow aging process over a period of several days, which dramatically reduces their reactivity in a place-exchange reaction with disulfides. This behavior was tentatively attributed to the reorganization of the most reactive binding sites (e.g., defect sites) on the nanoparticle surface.
Original languageEnglish
Pages (from-to)7780-7781
Number of pages1
JournalJournal of the American Chemical Society
Issue number25
Publication statusPublished - 30 Jun 2004

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