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FROM:
Zengjiang Wei, Zheng Jia, Jasmin Athas, Chaoyang Wang, Srinivasa R. Raghavan, Teng Li and Zhihong Nie,
“Hybrid hydrogel sheets that undergo pre-programmed shape transformations”, Soft Matter, Vol. 10, No. 41, pp 8157-8162, 2014, http://dx.doi.org/10.1039/C4SM01299B
ABSTRACT: This communication describes a novel strategy to achieve programmable shape transformation of hybrid hydrogel sheets by modulating both the in-plane and out-of-plane mismatches in mechanical properties. Both our experimental and computational results demonstrate that the shape transformation of hybrid hydrogel sheets shows rich features (e.g., rolling direction, axis, chirality, etc.) and versatile tunability (e.g., via various external stimuli, material properties, pattern geometry, etc.). This work can provide guidance for designing soft materials that are able to undergo more precise and complex shape transformation.
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