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In-air fast response and high speed jumping and rolling of a light-driven hydrogel actuator

Author

Listed:
  • Mingtong Li

    (Soochow University
    Max Planck Institute for Intelligent Systems)

  • Xin Wang

    (Soochow University)

  • Bin Dong

    (Soochow University)

  • Metin Sitti

    (Max Planck Institute for Intelligent Systems)

Abstract

Stimuli-responsive hydrogel actuators have promising applications in various fields. However, the typical hydrogel actuation relies on the swelling and de-swelling process caused by osmotic-pressure changes, which is slow and normally requires the presence of water environment. Herein, we report a light-powered in-air hydrogel actuator with remarkable performances, including ultrafast motion speed (up to 1.6 m/s), rapid response (as fast as 800 ms) and high jumping height (~15 cm). The hydrogel is operated based on a fundamentally different mechanism that harnesses the synergetic interactions between the binary constituent parts, i.e. the elasticity of the poly(sodium acrylate) hydrogel, and the bubble caused by the photothermal effect of the embedded magnetic iron oxide nanoparticles. The current hydrogel actuator exhibits controlled motion velocity and direction, making it promising for a wide range of mobile robotics, soft robotics, sensors, controlled drug delivery and other miniature device applications.

Suggested Citation

  • Mingtong Li & Xin Wang & Bin Dong & Metin Sitti, 2020. "In-air fast response and high speed jumping and rolling of a light-driven hydrogel actuator," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17775-4
    DOI: 10.1038/s41467-020-17775-4
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    Cited by:

    1. Dan Wang & Zhaomin Chen & Mingtong Li & Zhen Hou & Changsong Zhan & Qijun Zheng & Dalei Wang & Xin Wang & Mengjiao Cheng & Wenqi Hu & Bin Dong & Feng Shi & Metin Sitti, 2023. "Bioinspired rotary flight of light-driven composite films," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Jianliang Xiao & Tao Zhou & Ni Yao & Shuqi Ma & Chenxinyu Pan & Pan Wang & Haoran Fu & Haitao Liu & Jing Pan & Longteng Yu & Shipeng Wang & Wenzhen Yang & Limin Tong & Lei Zhang, 2022. "Optical fibre taper-enabled waveguide photoactuators," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. Cornel Dillinger & Nitesh Nama & Daniel Ahmed, 2021. "Ultrasound-activated ciliary bands for microrobotic systems inspired by starfish," Nature Communications, Nature, vol. 12(1), pages 1-11, December.

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