Three-dimensional capillary ratchet-induced liquid directional steering

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Shile Feng
  • Haiyang Zhan
  • Chen Chen
  • Liqiu Wang
  • Yahua Liu
  • Zuankai Wang

Detail(s)

Original languageEnglish
Pages (from-to)1344-1348
Journal / PublicationScience
Volume373
Issue number6561
Online published16 Sep 2021
Publication statusPublished - 17 Sep 2021

Abstract

Conventional understanding has it that a liquid deposited on a surface tends to move along directions that reduce surface energy, which is mainly dictated by surface properties rather than liquid properties, such as surface tension. Achieving well-controlled directional steering remains challenging because the liquid-solid interaction mainly occurs in the two-dimensional (2D) domain. We show that the spreading direction of liquids with different surface tensions can be tailored by designing 3D capillary ratchets that create an asymmetric and 3D spreading profile both in and out of the surface plane. Such directional steering is also accompanied by self-propulsion and high flow velocity, all of which are preferred in liquid transport.

Citation Format(s)

Three-dimensional capillary ratchet-induced liquid directional steering. / Feng, Shile; Zhu, Pingan; Zheng, Huanxi et al.

In: Science, Vol. 373, No. 6561, 17.09.2021, p. 1344-1348.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review