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Issue 31, 2016
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Alternating strings and clusters in suspensions of charged colloids

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Abstract

We report the formation of alternating strings and clusters in a binary suspension of repulsive charged colloids with double layers larger than the particle size. Within a binary cell model we include many-body and charge-regulation effects under the assumption of a constant surface potential, and consider their repercussions on the two-particle interaction potential. We find that the formation of induced dipoles close to a charge-reversed state may explain the formation of these structures. Finally, we will touch upon the formation of dumbbells and small clusters in a one-component system, where the effective electrostatic interaction is always repulsive.

Graphical abstract: Alternating strings and clusters in suspensions of charged colloids

  • This article is part of the themed collection: Colloids
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Article information


Submitted
03 Jun 2016
Accepted
13 Jul 2016
First published
14 Jul 2016

Soft Matter, 2016,12, 6610-6620
Article type
Paper

Alternating strings and clusters in suspensions of charged colloids

J. C. Everts, M. N. van der Linden, A. van Blaaderen and R. van Roij, Soft Matter, 2016, 12, 6610
DOI: 10.1039/C6SM01283C

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