A simple and direct reading flow meter fabricated by two-photon polymerization for microfluidic channel

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• 作者：Yi-Jui Liu ; Juin-Yi Yang ; Yung-Mau Nie ; Chun-Hung Lu…
• 关键词：Flow meter ; Two ; photon polymerization ; Microchannel ; Microfluidic chip ; Direct reading
• 刊名：Microfluidics and Nanofluidics
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：18
• 期：3
• 页码：427-431
• 全文大小：750 KB
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• 刊物类别：Engineering
• 刊物主题：Engineering Fluid Dynamics
  Medical Microbiology
  Polymer Sciences
  Nanotechnology
  Mechanics, Fluids and Thermodynamics
  Engineering Thermodynamics and Transport Phenomena
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1613-4990

文摘

This study introduces an innovative micromachine that enables precise measurement of the flow rate at the micron scale (μl/min) in microfluidic channel. It is fabricated by the state-of-the-art technique of two-photon polymerization and consists of: a rod-spring, a water-drop-shaped frame, and an indicator situated inside a microfluidic channel. The indicator is deflected by the flowing fluid while restrained by the spring to establish an equilibrium indication according to the flow rate. In the practical tests, the flow successfully agitates the spring in a proper deflection. The relationship between the flow rate and the deflection angle was calibrated.