Optical Fluid Pump: Generation of Directional Flow via Microphase Segregation/Homogenization
Source abstract
Abstract
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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Micro and Nano Robotics · Pickering emulsions and particle stabilization · Electrohydrodynamics and Fluid Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe 610-0394, Japan
Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart 70569, Germany
Institute for Integrated Cell-Material Sciences, Kyoto University, Kyoto 606-8501, Japan
Institute of Physical Chemistry, University of Heidelberg, Heidelberg 69120, Germany
Center for Integrative Medicine and Physics Institute for Advanced Study, Kyoto University, Kyoto 606-8501, Japan
Funding
Japan Society for the Promotion of Science
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