Nano Archive

Preparation and comparison between different thiol-protected Au nanoparticles

Gofberg, Itamar and Mandler, Daniel (2010) Preparation and comparison between different thiol-protected Au nanoparticles. Journal of Nanoparticle Research, 12 (5). pp. 1807-1811.

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Abstract

We report on the synthesis of monolayer-protected gold cluster (MPCs) in aquatic phase under different conditions. Three thiols, i.e., 2-mercaptoethanesulfonic acid (MPS), 3-mercaptopropionic acid (MPA), and cystamine (CYS) have been used as the protecting monolayer. Furthermore, we studied the effect of varying the ratio between the concentrations of the protecting layer, the gold ions, and the reducing agent in the preparation solution. Comparison was based on measuring the average diameter, stability, and size distribution of the MPCs. Best results were obtained for MPS-based MPCs and that the optimum molar concentration ratio between the protecting layer, the gold ions, and the reducing agent was 1:1:2.

Item Type:Article
Uncontrolled Keywords:Monolayer-protected gold cluster (MPCs) - Gold - Nanoparticles - Thiol - 3-Mercaptopropionic acid - 2-Mercaptoethanesulfonic acid - Cystamine
Subjects:Material Science > Nanofabrication processes and tools
ID Code:9254
Deposited By:SPI
Deposited On:08 Jun 2010 17:50
Last Modified:08 Jun 2010 17:50

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