Electrokinetic and hydrodynamic focusing/switching in microfluidics

R. J. Yang, C. C. Chang, S. B. Huang, G. B. Lee

研究成果: Conference contribution

摘要

This paper presents an investigation into two crucial aspects of microfluidic applications, namely hydrodynamic /electrokinetic focusing and switching. This study commences by modeling the hydrodynamic/electrokinetic focusing phenomenon theoretically using potential flow theory. A new theoretical model is applied to predict the width of the focused stream. The results predicted by the theoretical model are shown to be in reasonable agreement with the experimental data and numerical simulation results. The paper then proceeds to study the hydrodynamic and electrokinetic switching functions systematically using both experimental and theoretical approaches. A simple control model for 1×N electrokinetically pre-focused micro-flow switches is proposed. The study concludes by performing a systematic comparison of hydrodynamic and electrokinetic focusing/switching. The results of this study provide a useful methodology for the analysis of flow control in microfluidic devices.

原文English
主出版物標題2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
編輯M. Laudon, B. Romanowicz
頁面612-615
頁數4
出版狀態Published - 2005 十二月 1
事件2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
持續時間: 2005 五月 82005 五月 12

出版系列

名字2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings

Other

Other2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
國家/地區United States
城市Anaheim, CA
期間05-05-0805-05-12

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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