期刊
ACS NANO
卷 16, 期 11, 页码 19393-19402出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.2c09066
关键词
meniscus-climbing system; fully soft robotics; 3D printing; liquid crystal elastomer; liquid-air interface
类别
资金
- National Key Research and Development Program of China
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Natural Science Foundation of Shanghai
- Shanghai Rising-Star Program
- Belt & Road Young Scientist Exchanges Project of Science and Technology Commission Foundation of Shanghai
- Science and Technology Commission of Shanghai Municipality
- Fundamental Research Funds for the Central Universities
- DHU Distin- guished Young Professor Program
- [2021YFC2101800]
- [52173117]
- [52073049]
- [21991123]
- [82102211]
- [2021M702898]
- [20ZR1402500]
- [22ZR1400700]
- [21QA1400200]
- [20520741000]
- [20DZ2254900]
- [2232021G-02]
- [LZA2019001]
The article introduces the technology of three-dimensional motion of soft robots at the liquid-air interface. By studying the mechanism of the liquid-solid-air three-phase contact line, high degrees of freedom motion has been successfully achieved in this environment. This technology can be remotely driven by light and has potential applications.
Soft robotics locomotion at the liquid-air interface has become more and more important for an intelligent society. However, existing locomotion of soft robotics is limited to two dimensions. It remains a formidable challenge to realize three-dimensional locomotion (X, Y, and Z axes) at the liquid-air two-phase interface due to the unbalanced mechanical environment. Inspired by meniscus -climbing beetle larva Pyrrhalta, the mechanism of a three-phase (liquid-solid-air) contact line is here proposed to address the aforementioned challenge. A corresponding 3D printed fully soft robotics (named larvobot) based on photoresponsive liquid crystal elastomer/carbon nanotubes composites endowed repeatable programmable deformation and high degree-of -freedom locomotion. Three-dimensional locomotion at the liquid-air interface including twisting and rolling-up has been developed. The equation of motion is established by analyzing the mechanics along the solid-water surface of the larvobot. Meanwhile, ANSYS is used to calculate the stress distribution, which coincides with the speculation. Moreover, soft robotics is remotely driven by light in a precise spatiotemporal control, which provides a great advantage for applications. As an example, we demonstrate the controllable locomotion of the soft robotics inside closed tubes, which could be used for drug delivery and intelligent transportation.
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