Stabilization and Size Control of Gold Nanoparticles during Laser Ablation in Aqueous Cyclodextrins
Femtosecond laser radiation has been used to ablate a gold target in aqueous β-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 ζ-potential measurements, we propose a model invo...
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| Veröffentlicht in: | Journal of the American Chemical Society 2004-06, Vol.126 (23), p.7176-7177 |
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| container_end_page | 7177 |
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| container_issue | 23 |
| container_start_page | 7176 |
| container_title | Journal of the American Chemical Society |
| container_volume | 126 |
| creator | Sylvestre, Jean-Philippe Kabashin, Andrei V Sacher, Edward Meunier, Michel Luong, John H. T |
| description | Femtosecond laser radiation has been used to ablate a gold target in aqueous β-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 ζ-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. |
| doi_str_mv | 10.1021/ja048678s |
| format | Article |
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Soc</addtitle><date>2004-06-16</date><risdate>2004</risdate><volume>126</volume><issue>23</issue><spage>7176</spage><epage>7177</epage><pages>7176-7177</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><coden>JACSAT</coden><abstract>Femtosecond laser radiation has been used to ablate a gold target in aqueous β-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 ζ-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.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>15186145</pmid><doi>10.1021/ja048678s</doi><tpages>2</tpages></addata></record> |
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| source | MEDLINE; American Chemical Society Journals |
| subjects | Chemistry Colloidal state and disperse state Cyclodextrins - chemistry Exact sciences and technology General and physical chemistry Gold - chemistry Hydrogen-Ion Concentration Lasers Nanotechnology Physical and chemical studies. Granulometry. Electrokinetic phenomena |
| title | Stabilization and Size Control of Gold Nanoparticles during Laser Ablation in Aqueous Cyclodextrins |
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