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Shape morphing of anisotropy-encoded tough hydrogels enabled by asymmetrically-induced swelling and site-specific
Xiaohu Zhou1, Tianzhen Li, Jiahui Wang
1College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China. xczhou@szu.edu.cn.
Journal of Materials Chemistry. B
|April 8, 2020
Abstract:
This communication reports a dual regulation strategy, i.e., swelling and stiffness mismatch, for the shape morphing of calcium-alginate/polyacrylamide (PAAm) tough hydrogels enabled by site-specific patterning of ferric ions. Complex 3D or even 4D folding of tough hydrogels is achieved by sequentially applying the dual regulation.
