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High-performance Marangoni hydrogel rotors with asymmetric porosity and drag reduction profile

Author

Listed:
  • Hao Wu

    (University of Science and Technology of China)

  • Yiyu Chen

    (University of Science and Technology of China
    Southwest University of Science and Technology)

  • Wenlong Xu

    (University of Science and Technology of China)

  • Chen Xin

    (University of Science and Technology of China)

  • Tao Wu

    (University of Science and Technology of China)

  • Wei Feng

    (Max Planck Institute for Intelligent Systems)

  • Hao Yu

    (University of Science and Technology of China)

  • Chao Chen

    (University of Science and Technology of China)

  • Shaojun Jiang

    (University of Science and Technology of China)

  • Yachao Zhang

    (University of Science and Technology of China)

  • Xiaojie Wang

    (University of Science and Technology of China)

  • Minghui Duan

    (University of Science and Technology of China)

  • Cong Zhang

    (University of Science and Technology of China)

  • Shunli Liu

    (University of Science and Technology of China)

  • Dawei Wang

    (University of Science and Technology of China)

  • Yanlei Hu

    (University of Science and Technology of China)

  • Jiawen Li

    (University of Science and Technology of China)

  • Erqiang Li

    (University of Science and Technology of China)

  • HengAn Wu

    (University of Science and Technology of China)

  • Jiaru Chu

    (University of Science and Technology of China)

  • Dong Wu

    (University of Science and Technology of China)

Abstract

Miniaturized rotors based on Marangoni effect have attracted great attentions due to their promising applications in propulsion and power generation. Despite intensive studies, the development of Marangoni rotors with high rotation output and fuel economy remains challenging. To address this challenge, we introduce an asymmetric porosity strategy to fabricate Marangoni rotor composed of thermoresponsive hydrogel and low surface tension anesthetic metabolite. Combining enhanced Marangoni propulsion of asymmetric porosity with drag reduction of well-designed profile, our rotor precedes previous studies in rotation output (~15 times) and fuel economy (~34% higher). Utilizing thermoresponsive hydrogel, the rotor realizes rapid refueling within 33 s. Moreover, iron-powder dopant further imparts the rotors with individual-specific locomotion in group under magnetic stimuli. Significantly, diverse functionalities including kinetic energy transmission, mini-generator and environmental remediation are demonstrated, which open new perspectives for designing miniaturized rotating machineries and inspire researchers in robotics, energy, and environment.

Suggested Citation

  • Hao Wu & Yiyu Chen & Wenlong Xu & Chen Xin & Tao Wu & Wei Feng & Hao Yu & Chao Chen & Shaojun Jiang & Yachao Zhang & Xiaojie Wang & Minghui Duan & Cong Zhang & Shunli Liu & Dawei Wang & Yanlei Hu & Ji, 2023. "High-performance Marangoni hydrogel rotors with asymmetric porosity and drag reduction profile," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-022-35186-5
    DOI: 10.1038/s41467-022-35186-5
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    References listed on IDEAS

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    2. Kwanoh Kim & Xiaobin Xu & Jianhe Guo & D. L. Fan, 2014. "Ultrahigh-speed rotating nanoelectromechanical system devices assembled from nanoscale building blocks," Nature Communications, Nature, vol. 5(1), pages 1-9, May.
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