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Issue 23, 2015
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Shape transformations of soft matter governed by bi-axial stresses

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Abstract

Rational design of the programmable soft matter requires understanding of the effect of a complex metric on shape transformations of thin non-Euclidean sheets. In the present work, we explored experimentally and using simulations how simultaneous or consecutive application of two orthogonal perturbations to thin patterned stimuli-responsive hydrogel sheets affects their three-dimensional shape transformations. The final shape of the sheet is governed by the metric, but not the order, in which the perturbations are applied to the system, and is determined by the competition of small-scale bidirectional stresses. In addition, a new, unexpected transition from a planar state to an equilibrium helical shape of the hydrogel sheet is observed via a mechanism that is yet to be explained.

Graphical abstract: Shape transformations of soft matter governed by bi-axial stresses

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Publication details

The article was received on 09 Mar 2015, accepted on 23 Apr 2015 and first published on 24 Apr 2015


Article type: Paper
DOI: 10.1039/C5SM00561B
Soft Matter, 2015,11, 4600-4605

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    Shape transformations of soft matter governed by bi-axial stresses

    H. Thérien-Aubin, M. Moshe, E. Sharon and E. Kumacheva, Soft Matter, 2015, 11, 4600
    DOI: 10.1039/C5SM00561B

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