en
Scientific article
English

Reversible formation of gold nanoparticle–surfactant composite assemblies for the preparation of concentrated colloidal solutions

Published inPCCP. Physical chemistry chemical physics, vol. 11, no. 43, p. 10175-10179
Publication date2009
Abstract

We have developed a simple method for the preparation of nearly mono-dispersed stable gold colloids with a fairly high concentration using a two step procedure. First we synthesize citrate capped gold nanoparticles and then exchange the citrate ions with triethyleneglycolmono-11-mercaptoundecylether (EGMUDE). This leads to the immediate precipitation and formation of composite assemblies. The gold nanoparticles were successfully self-redispersed after a few days. The prepared gold colloid can be easily concentrated up to 20 times by separation of the flocculated part. UV-visible spectra, transmission electron microscopy (TEM), and dynamic light scattering (DLS) were used to characterize the products thus formed.

Citation (ISO format)
SHALKEVICH, Natallia et al. Reversible formation of gold nanoparticle–surfactant composite assemblies for the preparation of concentrated colloidal solutions. In: PCCP. Physical chemistry chemical physics, 2009, vol. 11, n° 43, p. 10175–10179. doi: 10.1039/B912571J
Main files (1)
Article
accessLevelRestricted
Identifiers
ISSN of the journal1463-9076
604views
0downloads

Technical informations

Creation03/18/2011 2:08:06 PM
First validation03/18/2011 2:08:06 PM
Update time03/14/2023 4:14:24 PM
Status update03/14/2023 4:14:24 PM
Last indexation02/12/2024 7:37:20 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack