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J Am Chem Soc. 2008 Jan 23;130(3):798-9. Epub 2007 Dec 23.

Size limitations for the formation of ordered striped nanoparticles.

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1
Department of Materials Science & Engineering, MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.

Abstract

A combination of immiscible molecules in the ligand shell of a gold nanoparticle (NP) has been shown to phase separate into a rippled structure; this phase separation can be used to direct the assembly of the NPs into chains. Here we demonstrate that only NPs within a certain size range can form chains, and we conclude that the rippled morphology of the ligand shell also exists only within that given size range. We corroborate this result with simulations of the ligand arrangement on NPs of various sizes.

PMID:
18154337
DOI:
10.1021/ja077383m
[Indexed for MEDLINE]
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