Morphology-Patterned Anisotropic Wetting Surface for Fluid Control and Gas–Liquid Separation in Microfluidics
| Autor: | Tieqiang Wang, Huaizhong Shen, Junhu Zhang, Peihong Xue, Bai Yang, Shuli Wang, Wendong Liu, Shunsheng Ye, Nianzuo Yu, Peng Ge |
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| Rok vydání: | 2016 |
| Předmět: |
Surface (mathematics)
Microchannel Morphology (linguistics) Materials science Fabrication Microfluidics Flow (psychology) Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences General Materials Science Wetting Composite material 0210 nano-technology Anisotropy |
| Zdroj: | ACS Applied Materials & Interfaces. 8:13094-13103 |
| ISSN: | 1944-8252 1944-8244 |
| Popis: | This article shows morphology-patterned stripes as a new platform for directing flow guidance of the fluid in microfluidic devices. Anisotropic (even unidirectional) spreading behavior due to anisotropic wetting of the underlying surface is observed after integrating morphology-patterned stripes with a Y-shaped microchannel. The anisotropic wetting flow of the fluid is influenced by the applied pressure, dimensions of the patterns, including the period and depth of the structure, and size of the channels. Fluids with different surface tensions show different flowing anisotropy in our microdevice. Moreover, the morphology-patterned surfaces could be used as a microvalve, and gas-water separation in the microchannel was realized using the unidirectional flow of water. Therefore, benefiting from their good performance and simple fabrication process, morphology-patterned surfaces are good candidates to be applied in controlling the fluid behavior in microfluidics. |
| Databáze: | OpenAIRE |
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