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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Liu, Kun Xue, Peihong Wang, Tieqiang Yu, Ye Zhang, Junhu Li, Yang Wang, Shuli Kumacheva, Eugenia Yang, Bai Chen, Hongxu |
| Copyright Year | 2014 |
| Abstract | In this paper, we demonstrate a facile strategy for the fabrication of a one-way valve for microfluidic (MF) systems. The micro-valve was fabricated by embedding arrays of Janus Si elliptical pillars (Si-EPAs) with anisotropic wettability into a MF channel fabricated in poly(dimethylsiloxane) (PDMS). Two sides of the Janus pillar are functionalized with molecules with distinct surface energies. The ability of the Janus pillar array to act as a valve was proved by investigating the flow behaviour of water in a T-shaped microchannel at different flow rates and pressures. In addition, the one-way valve was used to achieve gas–liquid separation. We believe that the Janus Si-EPAs modified by specific surface functionalization provide a new strategy to control the flow and motion of fluids in MF channels. |
| Starting Page | 3846 |
| Ending Page | 3853 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 20403364 |
| Volume Number | 6 |
| Issue Number | 7 |
| Journal | Nanoscale |
| DOI | 10.1039/c3nr05865d |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Wetting Janus Anisotropy Polydimethylsiloxane |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology |
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