Controlling liquid spreading using microfabricated undercut edges
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Details
| Original language | English |
|---|---|
| Pages (from-to) | 2275-2278 |
| Number of pages | 4 |
| Journal | Advanced Materials |
| Volume | 25 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 24 Apr 2013 |
| Publication type | A1 Journal article-refereed |
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.
ASJC Scopus subject areas
Keywords
- anisotropic wetting, contact-line pinning, surface microfluidics