4.8 Article

Electronically Programmable, Reversible Shape Change in Two- and Three-Dimensional Hydrogel Structures

Journal

ADVANCED MATERIALS
Volume 25, Issue 11, Pages 1541-1546

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201204180

Keywords

hydrogels; programmable shape; stretchable electrode meshes; non-uniform deformation

Funding

  1. ACS [PRF 52369-ND7, 52998-ND9]
  2. U.S. Department of Energy, Division of Materials Sciences through the Frederick Seitz MRL [DEFG02-91ER45439]
  3. Center for Microanalysis of Materials at the University of Illinois at Urbana-Champaign

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Combining compliant electrode arrays in open-mesh constructs with hydrogels yields a class of soft actuator, capable of complex, programmable changes in shape. The results include materials strategies, integration approaches, and mechanical/thermal analysis of heater meshes embedded in thermoresponsive poly(N-isopropylacrylamide) (pNIPAM) hydrogels with forms ranging from 2D sheets to 3D hemispherical shells.

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