Bio-sensing textile based patch with integrated optical detection system for sweat monitoring

Deirdre Morris, Shirley Coyle, Yanzhe Wu, King Tong Lau, Gordon Wallace, Dermot Diamond*

*Corresponding author for this work

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Abstract

Sensors, which can be integrated into clothing and used to measure biochemical changes in body fluids, such as sweat, constitute a major advancement in the area of wearable sensors. Initial applications for such technology exist in personal health and sports performance monitoring. However, sample collection is a complicated matter as analysis must be done in real-time in order to obtain a useful examination of its composition. This work outlines the development of a textile-based fluid handling platform which uses a passive pump to gather sweat and move it through a pre-defined channel for analysis. The system is tested both in vitro and in vivo. In addition, a pH sensor, which depends on the use of a pH sensitive dye and paired emitter-detector LEDs to measure colour changes, has been developed. In vitro and on-body trials have shown that the sensor has the potential to record real-time variations in sweat during exercise.

Original languageEnglish
Pages (from-to)231-236
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume139
Issue number1
DOIs
Publication statusPublished - 20 May 2009
Externally publishedYes

Keywords

  • Biochemical sensors
  • Fluid handling
  • Wearable systems
  • Wireless monitoring
  • pH sensor

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Morris, D., Coyle, S., Wu, Y., Lau, K. T., Wallace, G., & Diamond, D. (2009). Bio-sensing textile based patch with integrated optical detection system for sweat monitoring. Sensors and Actuators, B: Chemical, 139(1), 231-236. https://doi.org/10.1016/j.snb.2009.02.032