自愈水凝胶
材料科学
执行机构
明胶
各向同性
各向异性
形状记忆合金
制作
软机器人
纳米技术
人工肌肉
仿生学
智能材料
复合材料
计算机科学
人工智能
高分子化学
物理
化学
生物化学
量子力学
替代医学
医学
病理
作者
Jie Zhuo,Baoyi Wu,Jiawei Zhang,Peng Yu,Huanhuan Lu,Xiaoxia Le,Shuxin Wei,Tao Chen
标识
DOI:10.1021/acsami.1c21941
摘要
The deformable diversity of organisms in nature has inspired the development of bionic hydrogel actuators. However, the anisotropic structures of hydrogel actuators cannot be altered after the fabrication process, which restricts hydrogel actuators to provide complex and diverse shape deformations. Herein, we propose a dual programming method to generate numerous anisotropic structures from initial isotropic gelatin-containing hydrogels; the isotropic hydrogel blocks could be first assembled into anisotropic structures based on the coil-triple helix transition of gelatin, and then, the assembled hydrogels could further be fixed into various temporary anisotropies, so that they can produce complex and diverse deformations under the stimulation of pH. In addition, the shape programming and deformation behaviors are reversible. This dual programming method provides more potential for the application of hydrogel actuators in soft robots and bionics.
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