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Proceeding Paper

A New Approach for Monitoring Sweat Ammonia Levels Using a Ventilated Capsule †

by
Annemarijn Steijlen
1,*,
Jeroen Bastemeijer
1,
Robbert Nederhoff
1,
Kaspar Jansen
2,
Paddy French
1 and
Andre Bossche
1
1
Faculty of Electrical Engineering Mathematics and Computer Science, Delft University of Technology, 2628 CD Delft, The Netherlands
2
Faculty of Industrial Design Engineering, Delft University of Technology, 2628 CE Delft, The Netherlands
*
Author to whom correspondence should be addressed.
†
Presented at the 8th International Electronic Conference on Sensors and Applications, 1–15 November 2021; Available online: https://ecsa-8.sciforum.net.
Eng. Proc. 2021, 10(1), 38; https://doi.org/10.3390/ecsa-8-11332
Published: 1 November 2021
(This article belongs to the Proceedings of The 8th International Electronic Conference on Sensors and Applications)
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Abstract

Ammonium levels in sweat can potentially be used to measure muscle fatigue and to diagnose particular metabolic myopathies. To research the potential use of ammonia in sweat as a biomarker, a new real-time monitoring system is developed. This system consists of a capsule that is placed on the skin and ventilated with dry air. A metal-oxide gas sensor in the capsule detects the ammonia that is evaporated from sweat. The sensor system was built, and calibration experiments were performed. The sensors show good sensitivity from 27 mV/ppm to 1.1 mV/ppm in the desired measurement range of 1 to 30 ppm, respectively. A temperature and humidity sensor is integrated to compensate for temperature and humidity effects on the NH3 sensor.
Keywords: sweat sensor; NH3 sensor; metal-oxide gas sensor; sweat monitoring sweat sensor; NH3 sensor; metal-oxide gas sensor; sweat monitoring

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MDPI and ACS Style

Steijlen, A.; Bastemeijer, J.; Nederhoff, R.; Jansen, K.; French, P.; Bossche, A. A New Approach for Monitoring Sweat Ammonia Levels Using a Ventilated Capsule. Eng. Proc. 2021, 10, 38. https://doi.org/10.3390/ecsa-8-11332

AMA Style

Steijlen A, Bastemeijer J, Nederhoff R, Jansen K, French P, Bossche A. A New Approach for Monitoring Sweat Ammonia Levels Using a Ventilated Capsule. Engineering Proceedings. 2021; 10(1):38. https://doi.org/10.3390/ecsa-8-11332

Chicago/Turabian Style

Steijlen, Annemarijn, Jeroen Bastemeijer, Robbert Nederhoff, Kaspar Jansen, Paddy French, and Andre Bossche. 2021. "A New Approach for Monitoring Sweat Ammonia Levels Using a Ventilated Capsule" Engineering Proceedings 10, no. 1: 38. https://doi.org/10.3390/ecsa-8-11332

APA Style

Steijlen, A., Bastemeijer, J., Nederhoff, R., Jansen, K., French, P., & Bossche, A. (2021). A New Approach for Monitoring Sweat Ammonia Levels Using a Ventilated Capsule. Engineering Proceedings, 10(1), 38. https://doi.org/10.3390/ecsa-8-11332

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