Journal
SCIENCE ADVANCES
Volume 6, Issue 5, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aax1464
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Funding
- National Natural Science Funds for Distinguished Young Scholar [21725401]
- National Key R&D Program of China [2018YFB1304600, 2017YFA0207800]
- National Natural Science Foundation of China [21574004]
- Fundamental Research Funds for the Central Universities
- National Young Thousand Talents Program
- NSF projects, China [61633004, 61822303, 91848206, 91848105]
- Festo Corporate project
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Many biological organisms can tune their mechanical properties to adapt to environments in multistable modes, but the current synthetic materials, with bistable states, have a limited ability to alter mechanical stiffness. Here, we constructed programmable organohydrogels with multistable mechanical states by an on-demand modular assembly of noneutectic phase transition components inside microrganogel inclusions. The resultant multiphase organohydrogel exhibits precisely controllable thermo-induced stepwise switching (i.e., triple, quadruple, and quintuple switching) mechanics and a self-healing property. The organohydrogel was introduced into the design of soft-matter machines, yielding a soft gripper with adaptive grasping through stiffness matching with various objects under pneumatic-thermal hybrid actuation. Meanwhile, a programmable adhesion of octopus-inspired robotic tentacles on a wide range of surface morphologies was realized. These results demonstrated the applicability of these organohydrogels in lifelike soft robotics in unconstructed and human body environments.
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