Lamellar phase supported synthesis of colloidal gold nanoparticles, nanoclusters, and nanowires

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DOIResolve DOI: http://doi.org/10.1166/jnn.2007.200
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TypeArticle
Journal titleJournal of Nanoscience and Nanotechnology
ISSN1533-4880
Volume7
Issue3
Pages916924; # of pages: 9
Subjectcyclodextrin; gemini cationic surfactants; gold nanoparticles; lamellar phase; transmission electron microscopy
AbstractGold nanoparticles (Au NP) have been synthesized in aqueous phase under ambient conditions in the presence of a series of various cationic double chain as well as dimeric (gemini) surfactants. The spacer chain and twin tail length of these surfactants has been systematically varied to see the effect of hydrophobicity on their capping ability. It has been observed that the increase in the length of spacer chain (from 12-2-12 to 12-6-12) and twin tails (from 10-2-10 to 14-2-14) significantly increases the lamellar phase formation and which in return acts as a wonderful template to accommodate the NP in the form of nanoclusters and nanowires. The lamellar phase practically facilitates the nucleation of Au° and produces large NP (15±2 nm). All reactions have also been carried out in the presence of -cyclodextrin (CYC) which has strong ability to complex with surfactant tail. The presence of CYC induces a tendency to form nanowire and it is more prominent in the case of surfactants with longer spacer group.
Publication date
AffiliationNRC National Institute for Nanotechnology; National Research Council Canada
Peer reviewedYes
NRC number441
NPARC number8926555
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Record identifier61621765-9b63-42da-8bad-1f5efcd61e29
Record created2009-04-23
Record modified2016-05-09
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