Optical fluid pump: generation of directional flow via microphase segregation/homogenization
We report the successful generation of directional liquid-flow under stationary laser irradiation at a fixed position in a chamber. We adopt a homogeneous solution consisting of a mixture of water and triethylamine (TEA), with a composition near the critical point for phase segregation. When geometr...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
September 17, 2018
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| In: |
The journal of physical chemistry letters
Year: 2018, Volume: 9, Issue: 19, Pages: 5792-5796 |
| ISSN: | 1948-7185 |
| DOI: | 10.1021/acs.jpclett.8b01876 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1021/acs.jpclett.8b01876
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| Author Notes: | Hiroki Sakuta, Shunsuke Seo, Shuto Kimura, Marcel Hörning, Koichiro Sadakane, Takahiro Kenmotsu, Motomu Tanaka, and Kenichi Yoshikawa |
| Summary: | We report the successful generation of directional liquid-flow under stationary laser irradiation at a fixed position in a chamber. We adopt a homogeneous solution consisting of a mixture of water and triethylamine (TEA), with a composition near the critical point for phase segregation. When geometrical asymmetry is introduced around the laser focus in the chamber, continuous directional flow is generated, accompanied by the emergence of water-rich microdroplets at the laser focus. The emerging microdroplets tend to escape toward the surrounding bulk solution and then merge/annihilate into the homogeneous solution. The essential features of the directional flow are reproduced through a simple numerical simulation using fluid dynamic equations. |
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| Item Description: | Gesehen am 14.05.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1948-7185 |
| DOI: | 10.1021/acs.jpclett.8b01876 |