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Sample flow switching technique based on combined effect of hydrodynamic and electroosmosis

  • Nanyang Technological University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

This paper presents theoretical and experimental investigations on valveless microfluidic switch using the coupled effect of hydrodynamics and electroosmosis. In the experiment, two sheath streams (aqueous NaC1 and glycerol) and the sample stream (silicon oil) are introduced by syringe pumps to flow side by side in a straight rectangular microchannel. External electric fields are applied on the two sheath streams. Under the constant inlet volumetric flowrates, the sample stream is delivered to the desired outlet ports using electroosmotic effect. The liquid fractions of sheath streams are measured using fluorescence imaging technique. The results indicate that under suitable cooperation of electric fields, the sample stream can be delivered to the desired outlet ports.

源语言英语
主期刊名Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
59-63
页数5
DOI
出版状态已出版 - 2010
已对外发布
活动ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 - Shanghai, 中国
期限: 18 12月 200921 12月 2009

出版系列

姓名Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
1

会议

会议ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
国家/地区中国
Shanghai
时期18/12/0921/12/09

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