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Issue 20, 2013
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Strong orientational coupling in two-component suspensions of rod-like nanoparticles

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Abstract

We consider two-component suspensions of non-magnetic and magnetic rods and show that alignment of the magnetic component by a magnetic field orients the non-magnetic one. We studied suspensions of non-magnetic V2O5 rods doped with magnetic Fe3O4 nanoparticles. In the isotropic phase, the field-induced orientation of Fe3O4 particle chains aligns the V2O5 rods. Moreover, the nematic phase reorients towards the field at ≈50 Oe, much less than the ≈5 kOe needed for pure V2O5 suspensions. Such effects should exist in any suspension of two kinds of rods, one of which is sensitive to an external field.

Graphical abstract: Strong orientational coupling in two-component suspensions of rod-like nanoparticles

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Article information


Submitted
17 Dec 2012
Accepted
20 Mar 2013
First published
12 Apr 2013

Soft Matter, 2013,9, 5061-5066
Article type
Paper

Strong orientational coupling in two-component suspensions of rod-like nanoparticles

S. Kredentser, O. Buluy, P. Davidson, I. Dozov, S. Malynych, V. Reshetnyak, K. Slyusarenko and Y. Reznikov, Soft Matter, 2013, 9, 5061
DOI: 10.1039/C3SM27881F

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