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Sensors 2016, 16(10), 1733;

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

LAAS-CNRS, Université de Toulouse, CNRS, Toulouse 31031, France
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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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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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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