Issue 2, 2011
From the journal:

Soft Matter

Finding bridges in packings of colloidal spheres

Matthew C. Jenkins,*ab   Mark D. Haw,ac   Gary C. Barker,d   Wilson C. K. Poona  and  Stefan U. Egelhaafab  

* Corresponding authors

a School of Physics & Astronomy and COSMIC, The University of Edinburgh, James Clerk Maxwell Building, Kings Buildings, Mayfield Road, Edinburgh, Scotland, UK
E-mail: matthew.jenkins@uni-duesseldorf.de

b Condensed Matter Physics Laboratory, Heinrich-Heine-University, Universitätsstraße 1, Düsseldorf, Germany

c Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow, Scotland, UK

d Institute of Food Research, Norwich Research Park, Colney, Norwich, UK

Abstract

We identify putative load-bearing structures (bridges) in experimental colloidal systems studied by confocal microscopy. Bridges are co-operative structures that have been used to explain stability and inhomogeneous force transmission in simulated granular packings with a range of densities. We show that bridges similar to those found in granular simulations are present in real experimental colloidal packings. We describe critically the bridge-finding procedure for real experimental data and propose a new criterion—lowest mean squared separation (LSQS)—for selecting optimum stabilisations.

Graphical abstract: Finding bridges in packings of colloidal spheres

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Article information

DOI
https://doi.org/10.1039/C0SM00544D
Article type
Paper
Submitted
17 Jun 2010
Accepted
29 Sep 2010
First published
27 Oct 2010

Soft Matter, 2011,7, 684-690

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Finding bridges in packings of colloidal spheres

M. C. Jenkins, M. D. Haw, G. C. Barker, W. C. K. Poon and S. U. Egelhaaf, Soft Matter, 2011, 7, 684 DOI: 10.1039/C0SM00544D

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