• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 61 ›› Issue (3): 376-391.doi: 10.3901/JME.2025.03.376

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Research Progress on Design and Fabrication of Unidirectional Liquid Self-driven Transport Structure

TANG Heng1, XIE Yansong1, SUN Yalong2, WU Chunxia3, TANG Yong1,3   

  1. 1. College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518000;
    2. School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001;
    3. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640
  • Received:2024-02-06 Revised:2024-07-19 Published:2025-03-12

Abstract: Unidirectional liquid self-driven transport structure refers to the structure in which the liquid is able to move, spread or penetrate in a specific direction driven by the surface energy of the liquid without the action of external field. Many organisms in nature, such as cacti, pitcher plants, spiders, lizards, etc., can collect or discharge water with their unidirectional liquid self-driven transport structures to ensure their life activities. Because of no requirement of additional energy input, the unidirectional liquid self-driven transport structure is convenient to realize the lightweight of the equipment, and has a broad application prospect in medicine, chemical industry, energy, clothing and other fields. The principles of unidirectional liquid self-driven transport are introduced, the development and application of unidirectional liquid self-driven transport structure are reviewed, and the research progress of the design and fabrication of different unidirectional liquid self-driven transport structure is summarized. Finally, the development status and challenges of unidirectional liquid self-driven transport structures are summarized, and the future research is scientifically predicted and prospected.

Key words: surface structure, unidirectional liquid transport, microstructure manufacturing, liquid surface energy

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