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Spontaneous self-assembly and disassembly of colloidal gold nanoparticles induced by tetrakis(hydroxymethyl) phosphonium chloride.

ABSTRACT: Upon reacting with tetrakis(hydroxymethyl) phosphonium chloride, 15 nm citrate gold nanoparticles rapidly assemble into linear chains, followed by slowly disassembling into monodisperse components. This work highlights the first example of (31)P NMR on gold particles of this size and suggests that the phosphonium is oxidized on-particle, contributing to particle disassembly.

SUBMITTER: Gulka CP

PROVIDER: S-EPMC4778714 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature

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Spontaneous self-assembly and disassembly of colloidal gold nanoparticles induced by tetrakis(hydroxymethyl) phosphonium chloride.

Gulka Christopher P CP Wong Alexis C AC Wright David W DW

Chemical communications (Cambridge, England) 20160101 6

Upon reacting with tetrakis(hydroxymethyl) phosphonium chloride, 15 nm citrate gold nanoparticles rapidly assemble into linear chains, followed by slowly disassembling into monodisperse components. This work highlights the first example of (31)P NMR on gold particles of this size and suggests that the phosphonium is oxidized on-particle, contributing to particle disassembly. ...[more]

PMID: 26611623

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