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http://dx.doi.org/10.5407/JKSV.2011.9.2.021

Analysis of 3-Dimensional Hydrodynamic Focusing in Circular Capillary Tube and Rectangular Microchannel  

Yoon, Seong-Hee (국민대학교 대학원 기계공학과)
Kim, Kyung-Hoon (국민대학교 기계자동차공학부)
Kim, Jung-Kyung (국민대학교 기계시스템공학부)
Publication Information
Journal of the Korean Society of Visualization / v.9, no.2, 2011 , pp. 21-26 More about this Journal
Abstract
Hydrodynamic focusing technique to generate focused flow has been used for flow cytometry in microfluidic devices. However, devices with circular capillary tubes made of glass are not suitable for flow visualization or optical signal detection because the rays of light are distorted at the curved interface. We devised a new acrylic chamber assembled with a pulled micropipette and a rectangular microchannel made of glass. This new channel geometry enabled us to visualize the three-dimensional (3D) flow characteristics with confocal imaging technique. We analyzed the 3D hydrodynamic focusing in a circular capillary tube and a rectangular microchannel over a practical range of flow rates, viscosities and pressure drops.
Keywords
Flow Visualization; Hydrodynamic Focusing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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