Issue 2, 2012
From the journal:

Chemical Science

Exploring the mobility of nanoscale polyoxometalates using gel electrophoresis†

Ryo Tsunashima,a   Craig Richmondb  and  Leroy Cronin*b  

* Corresponding authors

a Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi, Japan

b WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow, UK
E-mail: lee.cronin@glasgow.ac.uk
Web: http://www.croninlab.com
Fax: +44 (0)141 330 4888
Tel: +44 (0)141 330 6650

Abstract

Polyoxometalate clusters encompass a vast library of molecular metal-oxo anions with a large range of mass, size, and charge and are generally formed under one-pot conditions, where many species may exist in solution at any given time. Herein we demonstrate that conventional gel electrophoresis can be used to separate metal oxide based nanomaterials from mixtures, and as a result identify cluster types as a function of their surface charge density. In particular we demonstrate that the nanoscale clusters, contrary to current understanding, have mobility that is a function of the surface charge density at high concentrations. This means that when considering the structural diversity of metal oxide nanomaterials, the variation of charge, size, shape or other structural properties causes a difference in mobility that can be used to both characterise and separate the nanoscale oxides in solution.

Graphical abstract: Exploring the mobility of nanoscale polyoxometalates using gel electrophoresis

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Article information

DOI
https://doi.org/10.1039/C1SC00542A
Article type
Edge Article
Submitted
08 Aug 2011
Accepted
20 Oct 2011
First published
09 Nov 2011

Chem. Sci., 2012,3, 343-348

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Exploring the mobility of nanoscale polyoxometalates using gel electrophoresis

R. Tsunashima, C. Richmond and L. Cronin, Chem. Sci., 2012, 3, 343 DOI: 10.1039/C1SC00542A

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