Citrate-stabilized gold nanorods

Stable aqueous dispersions of citrate-stabilized gold nanorods (cit-GNRs) have been prepared in scalable fashion by surfactant exchange from cetyltrimethylammonium bromide (CTAB)-stabilized GNRs, using polystyrenesulfonate (PSS) as a detergent. The surfactant exchange process was monitored by infrar...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 30(2014), 46 vom: 25. Nov., Seite 13727-30
1. Verfasser: Mehtala, Jonathan G (VerfasserIn)
Weitere Verfasser: Zemlyanov, Dmitry Y, Max, Joann P, Kadasala, Naveen, Zhao, Shou, Wei, Alexander
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Cetrimonium Compounds Citric Acid 2968PHW8QP Gold 7440-57-5 Cetrimonium Z7FF1XKL7A
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520 |a Stable aqueous dispersions of citrate-stabilized gold nanorods (cit-GNRs) have been prepared in scalable fashion by surfactant exchange from cetyltrimethylammonium bromide (CTAB)-stabilized GNRs, using polystyrenesulfonate (PSS) as a detergent. The surfactant exchange process was monitored by infrared spectroscopy, surface-enhanced Raman scattering (SERS), and X-ray photoelectron spectroscopy (XPS). The latter established the quantitative displacement of CTAB (by PSS) and of PSS (by citrate). The Cit-GNRs are indefinitely stable at low ionic strength, and are conducive to further ligand exchange without loss of dispersion stability. The reliability of the surface exchange process supports the systematic analysis of ligand structure on the hydrodynamic size of GNRs, as described in a companion paper 
650 4 |a Journal Article 
650 4 |a Research Support, N.I.H., Extramural 
650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Zemlyanov, Dmitry Y  |e verfasserin  |4 aut 
700 1 |a Max, Joann P  |e verfasserin  |4 aut 
700 1 |a Kadasala, Naveen  |e verfasserin  |4 aut 
700 1 |a Zhao, Shou  |e verfasserin  |4 aut 
700 1 |a Wei, Alexander  |e verfasserin  |4 aut 
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