Integrated microfluidics system using surface acoustic wave and electrowetting on dielectrics technology |
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| Authors: | Li Y Fu Y Q Brodie S D Alghane M Walton A J |
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| Institution: | 1Institute for Integrated Micro and Nano Systems, School of Engineering, Institute for Integrated Systems, University of Edinburgh, Edinburgh EH9 3JF, United Kingdom;2Department of Mechanical Engineering, School of Engineering and Physical Sciences, Institute for Integrated Systems, Heriot-Watt University, Edinburgh, United Kingdom;3Thin Film Centre, Scottish Universities of Physics Alliance (SUPA), University of West of Scotland, Paisley PA1 2BE, United Kingdom |
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| Abstract: | This paper presents integrated microfluidic lab-on-a-chip technology combining surface acoustic wave (SAW) and electro-wetting on dielectric (EWOD). This combination has been designed to provide enhanced microfluidic functionality and the integrated devices have been fabricated using a single mask lithographic process. The integrated technology uses EWOD to guide and precisely position microdroplets which can then be actuated by SAW devices for particle concentration, acoustic streaming, mixing and ejection, as well as for sensing using a shear-horizontal wave SAW device. A SAW induced force has also been employed to enhance the EWOD droplet splitting function. |
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