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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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Publication details

The article was received on 03 Jun 2016, accepted on 13 Jul 2016 and first published on 14 Jul 2016


Article type: Paper
DOI: 10.1039/C6SM01283C
Citation: Soft Matter, 2016,12, 6610-6620
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    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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