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Investigation of active interface control of pressure driven two-fluid flow in microchannels

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Investigation of active interface control of pressure driven two-fluid flow in microchannels

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Title: Investigation of active interface control of pressure driven two-fluid flow in microchannels
Author: Wang, Cheng; Nguyen, Nam-Trung; Wong, Teck Neng; Wu, Zhigang; Yang, Chun; Ooi, Kim Tiow
Copyright year: 2006
Abstract: We report a novel concept to control the interface location of a pressure-driven multi-phase flow in a microchannel by using electroosmotic flow effects. This concept has potential applications in flow switching and cell sorting in bio-analytical systems. In an H-shaped microchannel structure, aqueous sodium chloride (NaCl) solution and glycerol diluted with water were pumped through two inlets at the same flow rate. The electric field was applied on the electrolyte solution side. Adjusting the magnitude and direction of electric field has successfully controlled the interface position between the two phases. This technique provides a new approach to control the interface position between the two fluids.
Subject: DRNTU::Engineering::Mechanical engineering.
Type: Journal Article
Series/ Journal Title: Sensors and actuators A: physical
School: School of Mechanical and Aerospace Engineering
Rights: © 2006 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Sensors and actuators A: physical, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org.ezlibproxy1.ntu.edu.sg/10.1016/j.sna.2006.06.034.

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