Pump Less Wearable Microfluidic Device for Real Time pH Sweat Monitoring

This paper presents the fabrication and the performance of a novel, wearable, robust, flexible and disposable microfluidic device which incorporates micro-Light Emitting Diodes (μ-LEDs) as a detection system, for monitoring in real time mode the pH of the sweat generated during an exercise period. Up to now sweat analysis has been carried out using awkward methods of collecting sweat followed by laboratory analysis. The approach presented here can provide immediate feedback regarding sweat composition to an athlete and coach. The great advantage of sweat analysis is the fact that it is a completely non-invasive means of analyzing the wearer’s physiological state and ensuring their health and well-being.