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Sensors 2016, 16(7), 964; doi:10.3390/s16070964

A Novel Microfluidic Flow Rate Detection Method Based on Surface Plasmon Resonance Temperature Imaging

State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China
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Author to whom correspondence should be addressed.
Academic Editors: Amine Miled and Jesse Greener
Received: 29 April 2016 / Revised: 7 June 2016 / Accepted: 21 June 2016 / Published: 24 June 2016
(This article belongs to the Special Issue Microfluidics-Based Microsystem Integration Research)
View Full-Text   |   Download PDF [4360 KB, uploaded 24 June 2016]   |  

Abstract

A novel microfluidic flow rate detection method based on surface plasmon resonance (SPR) temperature imaging is proposed. The measurement is performed by space-resolved SPR imaging of the flow induced temperature variations. Theoretical simulations and analysis were performed to demonstrate a proof of concept using this approach. Experiments were implemented and results showed that water flow rates within a wide range of tens to hundreds of μL/min could be detected. The flow rate sensor is resistant to disturbances and can be easily integrated into microfluidic lab-on-chip systems. View Full-Text
Keywords: microfluidic flow rate detection; surface plasmon resonance; temperature variation imaging microfluidic flow rate detection; surface plasmon resonance; temperature variation imaging
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Deng, S.; Wang, P.; Liu, S.; Zhao, T.; Xu, S.; Guo, M.; Yu, X. A Novel Microfluidic Flow Rate Detection Method Based on Surface Plasmon Resonance Temperature Imaging. Sensors 2016, 16, 964.

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