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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Ruiz-Gutiérrez, Élfego Guan, Jian Hui Xu, Ben Bin Wood, David McHale, Glen Ledesma-Aguilar, Rodrigo Wells, Gary George |
| Copyright Year | 2017 |
| Abstract | We demonstrate the transport and positioning of water droplets on macro-patterned lubricant-impregnated surfaces. The macro-patterning produces menisci features in the impregnating liquid layer which interact with a droplet via a capillary mechanism similar to the Cheerios effect. These interactions control the droplet motion and positioning on an otherwise completely slippery surface. We present experimental results using a V-shape channel geometry as a model system. The interaction between deformations on the lubricant layer induced by the droplet and the underlying V-shape geometry leads to both local and global equilibrium positions for the droplet within the channel. We present a mathematical model to quantify the transition from local equilibrium states to the global equilibrium state and show that the latter can be described on the basis of a force balance along the apparent contact line of the droplet. We highlight possible applications where lubricated macro-patterned surfaces can be used to control the motion and localisation of droplets. |
| Starting Page | 3404 |
| Ending Page | 3410 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 1744683X |
| Volume Number | 13 |
| Issue Number | 18 |
| Journal | Soft Matter |
| DOI | 10.1039/c7sm00290d |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Meniscus (anatomy) Geometry Cheerios Interaction Mathematical model Lubricant |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Condensed Matter Physics |
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