title: A Novel Microfluidic Flow Rate Detection Method Based on Surface Plasmon Resonance Temperature Imaging.
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.
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. dsj11@mails.tsinghua.edu.cn.
authors.forename: Shijie
authors.initials: S
authors.lastname: Deng
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. peng@mail.tsinghua.edu.cn.
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. shengnan_liu@yeah.net.
authors.forename: Shengnan
authors.initials: S
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. ztz12@mails.tsinghua.edu.cn.
authors.forename: Tianze
authors.initials: T
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. 13681056064@163.com.
authors.forename: Shanzhi
authors.initials: S
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. 13811184011@126.com.
authors.forename: Mingjiang
authors.initials: M
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. jyxyxl@mail.tsinghua.edu.cn.
authors.forename: Xinglong
authors.initials: X
authors.lastname: Yu
keywords: microfluidic flow rate detection; surface plasmon resonance; temperature variation imaging