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基于两阶段变形的快速响应仿生近红外光驱动软体机器人

Fast-Response Bioinspired Near-Infrared Light-Driven Soft Robot Based on Two-Stage Deformation.

作者信息

Yu Zhaohan, Wang Yunming, Zheng Jiaqi, Sun Shuang, Fu Yue, Chen Dan, Cai Weihao, Wang Dong, Zhou Huamin, Li Dequn

机构信息

State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, P. R. China.

出版信息

ACS Appl Mater Interfaces. 2022 Apr 13;14(14):16649-16657. doi: 10.1021/acsami.2c01109. Epub 2022 Apr 1.


DOI:10.1021/acsami.2c01109
PMID:35360897
Abstract

Herein, we report a remotely controlled soft robot employing a photoresponsive nanocomposite synthesized from liquid crystal elastomers (LCEs), high elastic form-stable phase change polymer (HEPCP), and multiwalled carbon nanotubes (MWCNTs). Possessing a two-stage deformation upon exposure to near-infrared (NIR) light, the LCE/HEPCP/MWCNT (LHM) nanocomposite allows the soft robot to exhibit an obvious, fast, and reversible shape change with low detection limitations. In addition to the deformation and bending of the LCE molecular chains itself, the HEPCP in the composite material can also be triggered by a reversible solid-liquid transition due to the temperature rise caused by MWCNTs, which further promotes the change of the LCE. In particular, the proposed photodriven LHM soft robot can bend up to 180° in 2 s upon NIR stimulation (320 mW, distance of 5 cm) and generate recoverable, dramatic, and sensitive deformation to execute various tasks including walking, twisting, and bending. With the capacity of imitating biological behaviors through remote control, the disruptive innovation developed here offers a promising path toward miniaturized untethered robotic systems.

摘要

在此,我们报道了一种遥控软机器人,它采用了由液晶弹性体(LCE)、高弹性形状稳定相变聚合物(HEPCP)和多壁碳纳米管(MWCNT)合成的光响应纳米复合材料。LCE/HEPCP/MWCNT(LHM)纳米复合材料在近红外(NIR)光照射下具有两阶段变形,使软机器人能够以低检测限呈现明显、快速且可逆的形状变化。除了LCE分子链本身的变形和弯曲外,复合材料中的HEPCP还可因MWCNT引起的温度升高而通过可逆的固 - 液转变被触发,这进一步促进了LCE的变化。特别是,所提出的光驱动LHM软机器人在近红外刺激(320 mW,距离5 cm)下2秒内可弯曲达180°,并产生可恢复、显著且灵敏的变形以执行包括行走、扭转和弯曲在内的各种任务。凭借通过遥控模仿生物行为的能力,此处开发的颠覆性创新为小型化无系绳机器人系统提供了一条有前景的途径。

相似文献

[1]
Fast-Response Bioinspired Near-Infrared Light-Driven Soft Robot Based on Two-Stage Deformation.

ACS Appl Mater Interfaces. 2022-4-13

[2]
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[3]
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[4]
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[6]
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[7]
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[8]
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[10]
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引用本文的文献

[1]
Light-driven soft robot with compound motion patterns based on gas-liquid phase transition chamber.

Sci Rep. 2025-5-24

[2]
Minimally designed thermo-magnetic dual responsive soft robots for complex applications.

J Mater Chem B. 2024-6-5

[3]
Programmable Complex Shape Changing of Polysiloxane Main-Chain Liquid Crystalline Elastomers.

Molecules. 2023-6-20

[4]
Photothermal-Driven Liquid Crystal Elastomers: Materials, Alignment and Applications.

Molecules. 2022-7-6

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