Wearable Microfluidic Dual Screen-Printed Sensor for Simultaneous Monitoring of Sweat pH and Lactate
Year: 2025
Type: article
Abstract: Sweat lactate monitoring has recently garnered increasing attention for assessing athlete performance, optimizing training, and determining fatigue levels.Thus, this study introduces a wireless dual-biosensor device for continuous monitoring of sweat lactate and pH.The pH sensor exhibits a sensitivity of -61 ± 0.5 mV pH -1 , while the lactate sensor displays a sensitivity of 0.0149 ± 0.0004 mA cm -2 mM -1 at pH 7.5.We establish a method to precisely measure lactate within the pH range of 5.5 to 7.5, taking into account the pH-dependent sensor sensitivity.The dual-biosensor device incorporates polydimethylsiloxane microfluidics for collection of sweat, its delivery to the sensor, and disposal of used sweat, enabling continuous and precise monitoring.On-body tests demonstrate the ability of the proposed device to continuously monitor sweat pH and lactate levels in individuals during exercise.
Source: Electrochemistry
Authors: Isao SHITANDA, Momo CHIBA, Noya LOEW, Hidefumi YOSHIZAWA, Masahiro MOTOSUKE, Takahiro MUKAIMOTO, Shinya YANAGITA, Tatsunori SUZUKI, Tsutomu MIKAWA, Hikari WATANABE, Masayuki ITAGAKI
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,130
Award: 体表面ライブセンシングによる深層身体状態評価
OpenAlex ID: W7083205713