Journal
SMALL
Volume 4, Issue 9, Pages 1390-1398Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.200701163
Keywords
biomimetic synthesis; crystal growth; gold; self-assembly; surfactants
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Funding
- Natural Sciences and Engineering Research Council of Canada
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The first synthesis of a chelating and reactive surfactant derived from citric acid and a short silicone as hydrophobic tail is described. Aqueous solutions of this reactive amphiphile spontaneously induce gold ion reduction, particle nucleation, and further direct crystal growth. The process, both pH and light dependent, occurs through lipid-directed assembly of metal ions, their reduction and subsequent lipid-directed growth to yield ultrathin (approximately 7nm thick) quasi two-dimensional gold nanocrystals.
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