Shape morphing of anisotropy-encoded tough hydrogels enabled by asymmetrically-induced swelling and site-specific mechanical strengthening†,Journal of Materials Chemistry B

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Shape morphing of anisotropy-encoded tough hydrogels enabled by asymmetrically-induced swelling and site-specific mechanical strengthening†
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2018-07-02 00:00:00 , DOI: 10.1039/c8tb01372a
Xiaohu Zhou _{1,

2,

3,

4,

5} , Tianzhen Li _{1,

2,

3,

4} , Jiahui Wang _{1,

2,

3,

4} , Fan Chen _{1,

2,

3,

4} , Dan Zhou _{1,

2,

3,

4} , Qi Liu _{4,

5,

6,

7} , Liyun Zhang _{1,

2,

3,

4} , Jiayan Shen _{1,

2,

3,

4} , Xuechang Zhou _{1,

2,

3,

4}

Affiliation

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.

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