First Jump of Microgel: Actuation Speed Enhancement by Elastic Instability

Details First Jump of Microgel: Actuation Speed Enhancement by Elastic Instability First Jump of Microgel: Actuation Speed Enhancement by Elastic Instability

2010-08-24

arxiv.org/abs/1008.4078v1

published in Soft Matter, 2010

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 figures

Scientific paper

10.1039/C0SM00092B

Swelling-induced snap-buckling in a 3D micro hydrogel device, inspired by the insect-trapping action of Venus flytrap, makes it possible to generate astonishingly fast actuation. We demonstrate that elastic energy is effectively stored and quickly released from the device by incorporating elastic instability. Utilizing its rapid actuation speed, the device can even jump by itself upon wetting.

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