A connection between living liquid crystals and electrokinetic phenomena in nematic fluids

Christopher Conklin, Jorge Vinals, Oriol T Valls

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We develop a formal analogy between configurational stresses in physically distinct systems, and study the flows that they induce when the configurations of interest include topological defects. Our primary focus is on electrokinetic flows in a nematic fluid under an applied electrostatic field, which we compare with a class of systems in which internal stresses are generated due to configurational changes (e.g., active matter, liquid crystal elastomers). The mapping allows the extension, within certain limits, of existing results on transport in electrokinetic systems to active transport. We study motion induced by a pair of point defects in a dipole configuration, and steady rotating flows due to a swirling vortex nematic director pattern. The connection presented allows the design of electrokinetic experiments that correspond to particular active matter configurations that may be easier to conduct and control in the laboratory.

Original languageEnglish (US)
Pages (from-to)4641-4648
Number of pages8
JournalSoft Matter
Volume14
Issue number22
DOIs
StatePublished - Jan 1 2018

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Elastomers
Liquid Crystals
electrokinetics
Point defects
Design of experiments
Residual stresses
Vortex flow
liquid crystals
Electric fields
Defects
Fluids
fluids
configurations
swirling
elastomers
point defects
residual stress
vortices
dipoles
electric fields

PubMed: MeSH publication types

  • Journal Article

Cite this

A connection between living liquid crystals and electrokinetic phenomena in nematic fluids. / Conklin, Christopher; Vinals, Jorge; Valls, Oriol T.

In: Soft Matter, Vol. 14, No. 22, 01.01.2018, p. 4641-4648.

Research output: Contribution to journalArticle

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