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Electroosmotic control of width and position of liquid streams in hydrodynamic focusing

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Electroosmotic control of width and position of liquid streams in hydrodynamic focusing
นักวิจัย : Li, Haiwang , Wong, Teck Neng , Nguyen, Nam-Trung
คำค้น : DRNTU::Engineering::Mechanical engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2552
อ้างอิง : Li, H. W., Wong,T. N., & Nguyen, N. T. (2009). Electroosmotic control of width and position of liquid streams in hydrodynamic focusing. Microfluidics and Nanofluidics, 7(4), 489-497. , http://hdl.handle.net/10220/7837 , http://dx.doi.org/10.1007/s10404-009-0402-0 , 140776
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Microfluidics and nanofluidics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

This paper presents theoretical and experimental investigations on electroosmotic control of stream width in hydrodynamic focusing. In the experiments, three liquids (aqueous NaCl, aqueous glycerol and aqueous NaCl) are introduced by syringe pumps to flow side by side in a straight rectangular microchannel. External electric fields are applied on the two aqueous NaCl streams. Under the same inlet volumetric flow rates, the applied electric fields are varied to control the interface positions and consequently the width of the focused aqueous glycerol stream. The electroosmotic effect on the width of the aqueous glycerol is measured using fluorescence imaging technique. The electroosmotic effect under different flow rates, different viscosity, and aspect ratio are investigated. The results indicate that the electroosmotic effect on the pressure-driven flow becomes weaker with the increase in flow rates, viscosity ratio or aspect ratio of the channel. The measured results of the focused width of the non-conducting fluid agree well with the analytical model.

บรรณานุกรม :
Li, Haiwang , Wong, Teck Neng , Nguyen, Nam-Trung . (2552). Electroosmotic control of width and position of liquid streams in hydrodynamic focusing.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Haiwang , Wong, Teck Neng , Nguyen, Nam-Trung . 2552. "Electroosmotic control of width and position of liquid streams in hydrodynamic focusing".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Haiwang , Wong, Teck Neng , Nguyen, Nam-Trung . "Electroosmotic control of width and position of liquid streams in hydrodynamic focusing."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2552. Print.
Li, Haiwang , Wong, Teck Neng , Nguyen, Nam-Trung . Electroosmotic control of width and position of liquid streams in hydrodynamic focusing. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2552.