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Study of Electrochemical Impedance of a Continuous Glucose Monitoring Sensor and its Correlation with Sensor Performance

Sara Seyedeh Ghoreishizadeh, Xiaotian Zhang, Sanjiv Sharma Orcid Logo, Pantelis Georgiou

IEEE Sensors Letters, Pages: 1 - 1

Swansea University Author: Sanjiv Sharma Orcid Logo

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DOI (Published version): 10.1109/LSENS.2017.2778248

Abstract

In this work, we study the change in the sensitivity and the electrochemical impedance of continuous glucose monitoring sensors over time. 28-day sensitivity and EIS measurement results on four similar sensors are presented. The sensitivity of the sensor is observed to be related to its double-layer...

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Published in: IEEE Sensors Letters
ISSN: 2475-1472
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa37061
Abstract: In this work, we study the change in the sensitivity and the electrochemical impedance of continuous glucose monitoring sensors over time. 28-day sensitivity and EIS measurement results on four similar sensors are presented. The sensitivity of the sensor is observed to be related to its double-layer capacitance and charge-transfer resistance, based on results acquired from a sensor that showed substantial sensitivity drop. Two data clusters are extracted that relate the sensor sensitivity to its impedance before and after the sensitivity drops by more than 50%.
Keywords: Impedance spectroscopy, glucose sensor, sensitivity, correlation, double-layer capacitance
College: Faculty of Science and Engineering
Start Page: 1
End Page: 1

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