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Sensors 2016, 16(10), 1733; doi:10.3390/s16101733

Microwave-Based Microfluidic Sensor for Non-Destructive and Quantitative Glucose Monitoring in Aqueous Solution

LAAS-CNRS, Université de Toulouse, CNRS, Toulouse 31031, France
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Author to whom correspondence should be addressed.
Academic Editor: Ferran Martín
Received: 28 July 2016 / Revised: 30 September 2016 / Accepted: 11 October 2016 / Published: 19 October 2016
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Abstract

This paper presents a reliable microwave and microfluidic miniature sensor dedicated to the measurement of glucose concentration in aqueous solution. The device; which is integrated with microtechnologies; is made of a bandstop filter implemented in a thin film microstrip technology combined with a fluidic microchannel. Glucose aqueous solutions have been characterized for concentration ranging from 80 g/L down to 0.3 g/L and are identified with the normalized insertion loss at optimal frequency. The sensitivity of the sensor has consequently been estimated at 7.6 × 10−3 dB/(g/L); together with the experimental uncertainty; the resolution of the sensor comes to 0.4 g/L. These results demonstrate the potentialities of such a sensor for the quantitative analysis of glucose in aqueous solution. View Full-Text
Keywords: microwave; microfluidic; sensor; glucose; glycaemia microwave; microfluidic; sensor; glucose; glycaemia
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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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Chretiennot, T.; Dubuc, D.; Grenier, K. Microwave-Based Microfluidic Sensor for Non-Destructive and Quantitative Glucose Monitoring in Aqueous Solution. Sensors 2016, 16, 1733.

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