Manipulating droplets on surfaces: using the electrocapillary effect for control and applications

Shuyi Liu

doi:10.1117/12.3012909

8 January 2024 Manipulating droplets on surfaces: using the electrocapillary effect for control and applications

Shuyi Liu

Proceedings Volume 12924, Third International Conference on Biological Engineering and Medical Science (ICBioMed2023); 129242Q (2024) https://doi.org/10.1117/12.3012909
Event: 3rd International Conference on Biological Engineering and Medical Science (ICBioMed2023), 2023, ONLINE, United Kingdom

Abstract

The electrocapillary force offers a promising approach to manipulate droplets on surfaces by inducing deformations that create regions of varying surface tension. This abstract explores the hypothesis and provides two examples to illustrate its potential. Droplet manipulation on surfaces encompasses the interplay of surface wettability, external forces, and engineered interfaces. Surface wettability, influenced by interfacial tension and surface energy, governs droplet behavior and can be controlled through surface treatments. The mechanism ternal forces, including electrocapillary forces like electrowetting, electrostatic actuation, and dielectrophoretic, enable precise manipulation of droplets, while other forces like magnetic or acoustic forces can also be employed. In the wrinkled surfaces and slippery surfaces, reduce or increase adhesion facilitate controlled droplet movement. Integrating these aspects allows for the development of diverse applications in the fields where droplet manipulation is essential. The implications and applications of the hypothesis are explored, ranging from microfluidics to surface coatings and biomedical engineering. The conclusion outlines future research directions, identifies challenges, and summarizes the main findings of the paper. It also reflects on the broader significance of the research and suggests approaches to overcome challenges in future studies.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Shuyi Liu "Manipulating droplets on surfaces: using the electrocapillary effect for control and applications", Proc. SPIE 12924, Third International Conference on Biological Engineering and Medical Science (ICBioMed2023), 129242Q (8 January 2024); https://doi.org/10.1117/12.3012909

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KEYWORDS

Microfluidics

Electric fields

Biomedical applications

Liquids

Interfaces

Surface properties

Adhesion

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