Issue 9, 2010
From the journal:

Soft Matter

Negative mobility and sorting of colloidal particles

Ralf Eichhorn,*a   Jan Regtmeier,b   Dario Anselmettib  and  Peter Reimannc  

* Corresponding authors

a NORDITA, Roslagstullsbacken 23, 10691 Stockholm, Sweden
E-mail: eichhorn@nordita.org

b Experimental Biophysics & Applied Nanoscience, Bielefeld University, 33615 Bielefeld, Germany

c Fakultät für Physik, Universität Bielefeld, Bielefeld, Germany

Abstract

Transport in the realm of soft matter is strongly influenced by diffusion. Conditions far from thermal equilibrium and non-linear dynamics may give rise to unexpected transport phenomena, which are ruled out by the second law of thermodynamics under equilibrium conditions. Here, we highlight one of them, namely the migration of colloidal microparticles opposite to a static force and illustrate its application for particle sorting purposes.

Graphical abstract: Negative mobility and sorting of colloidal particles

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Article information

DOI
https://doi.org/10.1039/B918716M
Article type
Highlight
Submitted
08 Sep 2009
Accepted
15 Jan 2010
First published
17 Feb 2010

Soft Matter, 2010,6, 1858-1862

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Negative mobility and sorting of colloidal particles

R. Eichhorn, J. Regtmeier, D. Anselmetti and P. Reimann, Soft Matter, 2010, 6, 1858 DOI: 10.1039/B918716M

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