Controlling liquid spreading using microfabricated undercut edges

Ville Liimatainen; Veikko Sariola; Quan Zhou

doi:10.1002/adma.201204696

Controlling liquid spreading using microfabricated undercut edges

Ville Liimatainen, Veikko Sariola, Quan Zhou

Research output: Contribution to journal › Article › Scientific › peer-review

45 Citations (Scopus)

Abstract

A purely topographical method for controlling liquid spreading by using easy-to-fabricate undercut edges is reported. By periodic repetition of such edges, it is shown that multiple droplets can be patterned in well-controlled shapes, and highly anisotropic wetting can also be achieved at a large scale. Apparent contact angles close to 180° at the edge are shown, even for low surface tension liquids.

Original language	English
Pages (from-to)	2275-2278
Number of pages	4
Journal	Advanced Materials
Volume	25
Issue number	16
DOIs	https://doi.org/10.1002/adma.201204696
Publication status	Published - 24 Apr 2013
Publication type	A1 Journal article-refereed

Keywords

anisotropic wetting
contact-line pinning
surface microfluidics

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.201204696

Cite this

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AB - A purely topographical method for controlling liquid spreading by using easy-to-fabricate undercut edges is reported. By periodic repetition of such edges, it is shown that multiple droplets can be patterned in well-controlled shapes, and highly anisotropic wetting can also be achieved at a large scale. Apparent contact angles close to 180° at the edge are shown, even for low surface tension liquids.

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KW - surface microfluidics

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Controlling liquid spreading using microfabricated undercut edges

Abstract

Keywords

ASJC Scopus subject areas

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