Issue 6, 2005
From the journal:

Chemical Communications

Size-selective separation of gold nanoparticles using isoelectric focusingelectrophoresis (IEF)

Isabelle Arnaud,a   Jean-Pierre Abid,a   Christophe Roussela  and  Hubert H. Girault*a  

* Corresponding authors

a Ecole Polytechnique Fédérale de Lausanne, Laboratoire d'Electrochimie Physique et Analytique, 1015-Lausanne, Switzerland
E-mail: hubert.girault@epfl.ch
Fax: +21 693 36 67
Tel: +21 693 31 51

Abstract

Isoelectric focusing in a polyacrylamide pH gradient gel is used to analyze the size distribution of gold nanoparticles synthesized by a chemical route with mercaptosuccinic acid as a ligand. The isoelectric point of the nanoparticles is shown to be size dependent, allowing fractionation by electrophoresis. Each fraction has a narrow size distribution with a standard deviation lower than 0.4 nm.

Graphical abstract: Size-selective separation of gold nanoparticles using isoelectric focusing electrophoresis (IEF)

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Article information

DOI
https://doi.org/10.1039/B413719A
Article type
Communication
Submitted
09 Sep 2004
Accepted
08 Nov 2004
First published
22 Dec 2004

Chem. Commun., 2005, 787-788

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Size-selective separation of gold nanoparticles using isoelectric focusing electrophoresis (IEF)

I. Arnaud, J. Abid, C. Roussel and H. H. Girault, Chem. Commun., 2005, 787 DOI: 10.1039/B413719A

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