First jump of microgel; Actuation speed enhancement by elastic instability

Howon Lee, Chunguang Xia, Nicholas X. Fang

Research output: Contribution to journalArticlepeer-review

164 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)4342-4345
Number of pages4
JournalSoft Matter
Issue number18
StatePublished - Sep 21 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics


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