Stabilization and Size Control of Gold Nanoparticles during Laser Ablation in Aqueous Cyclodextrins

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Pages71767177; # of pages: 2
AbstractFemtosecond laser radiation has been used to ablate a gold target in aqueous -cyclodextrin (CD) solutions to produce stable gold nanoparticle colloids with extremely small size (2 to 2.4 nm) and size dispersion (1 to 1.5 nm). On the basis of XPS and -potential measurements, we propose a model involving chemical interactions between the gold and the CDs. The model includes both the hydrophobic interaction of the Au0 with the interior cavity of the CD and the hydrogen bonding of O- groups on the partially oxidized gold surface with -OH groups of the CDs.
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AffiliationNRC Biotechnology Research Institute; National Research Council Canada
Peer reviewedNo
NRC number47208
NPARC number3538820
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Record identifierc0ccf8db-f07f-4cad-be8b-28f952569469
Record created2009-03-01
Record modified2016-05-09
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