Preparation and comparison between different thiol-protected Au nanoparticles.

Citation:

Itamar Gofberg and Mandler, Daniel. . 2010. “Preparation And Comparison Between Different Thiol-Protected Au Nanoparticles.”. J. Nanopart. Res.journal Of Nanoparticle Research, 12, Pp. 1807 - 1811.

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 concns. of the protecting layer, the gold ions, and the reducing agent in the prepn. soln. Comparison was based on measuring the av. diam., stability, and size distribution of the MPCs. Best results were obtained for MPS-based MPCs and that the optimum molar concn. ratio between the protecting layer, the gold ions, and the reducing agent was 1:1:2. [on SciFinder(R)]