Issue 10, 2007
From the journal:

Lab on a Chip

Microfluidic flow rate detection based on integrated optical fiber cantilever

Victor Liena  and  Frank Vollmera  

a Rowland Institute, Harvard University, 100 Edwin H. Land Blvd, Cambridge, MA, USA
E-mail: vollmer@rowland.harvard.edu, lien@rowland.harvard.edu
Fax: +16174974627
Tel: +16174974659

Abstract

We demonstrate an integrated microfluidic flow sensor with ultra-wide dynamic range, suitable for high throughput applications such as flow cytometry and particle sorting/counting. A fiber-tip cantilever transduces flow rates to optical signal readout, and we demonstrate a dynamic range from 0 to 1500 µL min−1 for operation in water. Fiber-optic sensor alignment is guided by preformed microfluidic channels, and the dynamic range can be adjusted in a one-step chemical etch. An overall non-linear response is attributed to the far-field angular distribution of single-mode fiber output.

Graphical abstract: Microfluidic flow rate detection based on integrated optical fiber cantilever

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Article information

DOI
https://doi.org/10.1039/B706944H
Article type
Paper
Submitted
09 May 2007
Accepted
25 Jun 2007
First published
11 Jul 2007

Lab Chip, 2007,7, 1352-1356

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Microfluidic flow rate detection based on integrated optical fiber cantilever

V. Lien and F. Vollmer, Lab Chip, 2007, 7, 1352 DOI: 10.1039/B706944H

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