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Volume 5 Issue 2
Mar.  2023
Article Contents

Wang Z L, Yin Q, Zhan Z H, Li W H, Xie M Z, Duan H G, Cheng P, Zhang C, Chen Y P, Dong Z C. 2023. Bionic microchannels for step lifting transpiration. Int. J. Extrem. Manuf. 5 025502.
Citation: Wang Z L, Yin Q, Zhan Z H, Li W H, Xie M Z, Duan H G, Cheng P, Zhang C, Chen Y P, Dong Z C. 2023. Bionic microchannels for step lifting transpiration. Int. J. Extrem. Manuf. 025502.

Bionic microchannels for step lifting transpiration


doi: 10.1088/2631-7990/acbcff
More Information
  • Publish Date: 2023-03-09
  • Those various cross-sectional vessels in trees transfer water to as high as 100 meters, but the traditional fabrication methods limit the manufacturing of those vessels, resulting in the non-availability of those bionic microchannels. Herein, we fabricate those bionic microchannels with various cross-sections by employing projection micro-stereolithography (PµSL) based 3D printing technique. The circumradius of bionic microchannels (pentagonal, square, triangle, and five-pointed star) can be as small as 100 µm with precisely fabricated sharp corners. What’s more, those bionic microchannels demonstrate marvelous microfluidic performance with strong precursor effects enabled by their sharp corners. Most significantly, those special properties of our bionic microchannels enable them outstanding step lifting performance to transport water to tens of millimeters, though the water can only be transported to at most 20 mm for a single bionic microchannel. The mimicked transpiration based on the step lifting of water from bionic microchannels is also achieved. Those precisely fabricated, low-cost, various cross-sectional bionic microchannels promise applications as microfluidic chips, long-distance unpowered water transportation, step lifting, mimicked transpiration, and so on.

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Bionic microchannels for step lifting transpiration

doi: 10.1088/2631-7990/acbcff
  • 1 Interdisciplinary Research Center of Low-carbon Technology and Equipment, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China;
  • 2 MOE Key Laboratory for Power Machinery and Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China;
  • 3 Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology(CAST), Beijing 100094, People's Republic of China;
  • 4 Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, People's Republic of China;
  • 5 Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, People's Republic of China;
  • 6 Chinese Academy of Sciences Key Laboratory of Bio-inspired Materials and Interface Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190 Beijing, People's Republic of China

Abstract: 

Those various cross-sectional vessels in trees transfer water to as high as 100 meters, but the traditional fabrication methods limit the manufacturing of those vessels, resulting in the non-availability of those bionic microchannels. Herein, we fabricate those bionic microchannels with various cross-sections by employing projection micro-stereolithography (PµSL) based 3D printing technique. The circumradius of bionic microchannels (pentagonal, square, triangle, and five-pointed star) can be as small as 100 µm with precisely fabricated sharp corners. What’s more, those bionic microchannels demonstrate marvelous microfluidic performance with strong precursor effects enabled by their sharp corners. Most significantly, those special properties of our bionic microchannels enable them outstanding step lifting performance to transport water to tens of millimeters, though the water can only be transported to at most 20 mm for a single bionic microchannel. The mimicked transpiration based on the step lifting of water from bionic microchannels is also achieved. Those precisely fabricated, low-cost, various cross-sectional bionic microchannels promise applications as microfluidic chips, long-distance unpowered water transportation, step lifting, mimicked transpiration, and so on.

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