Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 50, Pages 15974-15978Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201708926
Keywords
hydrogels; morphing structures; photolithography; programmed deformations; site-specific swelling
Categories
Funding
- National Natural Science Foundation of China [51403184, 51773179]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars [J20141135]
- Thousand Young Talents Program of China
Ask authors/readers for more resources
Morphing materials have promising applications in various fields, yet how to program the self-shaping process for specific configurations remains a challenge. Herein we show a versatile approach to control the buckling of individual domains and thus the outcome configurations of planar-patterned hydrogels. By photolithography, high-swelling disc gels were positioned in a non-swelling gel sheet; the swelling mismatch resulted in out-of-plain buckling of the disc gels. To locally control the buckling direction, masks with holes were used to guide site-specific swelling of the high-swelling gel under the holes, which built a transient through-thickness gradient and thus directed the buckling during the subsequent unmasked swelling process. Therefore, various configurations of an identical patterned hydrogel can be programmed by the pre-swelling step with different masks to encode the buckling directions of separate domains.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available