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Nano Research 2023, 16(3): 3913-3923 https://doi.org/10.1007/s12274-022-4866-5
Review Article | Issue | Published: 24 September 2022

Bioinspired directional liquid transport induced by the corner effect

Show Author's Information Zhongyu Shi1,  Zhongxue Tang1,  Bojie Xu1,  Lei Jiang1,2,  Huan Liu1,2( )
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
Research Institute for Frontier Science, Beihang University, Beijing 100191, China
Keywords:
Laplace pressure, bioinspired materials, directional liquid transport, corner effect, capillary rise
Topics:
Morphology
Cite this article:
Shi Z, Tang Z, Xu B, et al. Bioinspired directional liquid transport induced by the corner effect. Nano Research, 2023, 16(3): 3913-3923. https://doi.org/10.1007/s12274-022-4866-5
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Abstract Full text About this article

Many natural creatures have demonstrated unique abilities in directional liquid transport (DLT) for better adapting to the local environment, which, for a long time, have inspired the material fabrication for applications in microfluidics, self-cleaning, water collection, etc. Recently, DLTs aroused by the corner effect have been witnessed in various natural organisms, where liquid transports/spreads spontaneously along the corner structures in microgrooves, wedges or conical structures driven by micro-/nano- scaled capillary forces without external energy input. Particularly, these DLTs show advantages of ultrahigh speed, continuous proceeding, and/or external controllability. Here, we reviewed recent research advances on the bioinspired DLTs induced by the corner effect, as well as the involved mechanisms and the artificial counterpart materials with various applications. We also introduced some bioinspired materials that are capable of stimulus-responsive DLT under external fields. Finally, we suggested perspectives of the bioinspired DLTs in liquid manipulations.


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About this article

Bioinspired directional liquid transport induced by the corner effect

Show Author's information Zhongyu Shi1, Zhongxue Tang1, Bojie Xu1, Lei Jiang1,2, Huan Liu1,2( )
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
Research Institute for Frontier Science, Beihang University, Beijing 100191, China

Abstract

Many natural creatures have demonstrated unique abilities in directional liquid transport (DLT) for better adapting to the local environment, which, for a long time, have inspired the material fabrication for applications in microfluidics, self-cleaning, water collection, etc. Recently, DLTs aroused by the corner effect have been witnessed in various natural organisms, where liquid transports/spreads spontaneously along the corner structures in microgrooves, wedges or conical structures driven by micro-/nano- scaled capillary forces without external energy input. Particularly, these DLTs show advantages of ultrahigh speed, continuous proceeding, and/or external controllability. Here, we reviewed recent research advances on the bioinspired DLTs induced by the corner effect, as well as the involved mechanisms and the artificial counterpart materials with various applications. We also introduced some bioinspired materials that are capable of stimulus-responsive DLT under external fields. Finally, we suggested perspectives of the bioinspired DLTs in liquid manipulations.

Keywords: Laplace pressure, bioinspired materials, directional liquid transport, corner effect, capillary rise

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Publication history
Copyright
Acknowledgements

Publication history

Received: 29 May 2022
Revised: 08 July 2022
Accepted: 03 August 2022
Published: 24 September 2022
Issue date: March 2023

Copyright

© Tsinghua University Press 2022

Acknowledgements

Acknowledgements

This work was financially supported by the National Key R&D Program of China (No. 2018YFA0704801), the National Natural Science Foundation of China for Distinguished Young Scholar (No. 22125201), and the National Natural Science Foundation of China (Nos. 21872002 and 22105013).

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