A wearable chemical–electrophysiological hybrid biosensing system for real-time health and fitness monitoring

作者：Somayeh Imani, Amay J. Bandodkar, A. M. Vinu Mohan, Rajan Kumar, Shengfei Yu, Joseph Wang, Patrick P. Mercier · 发表于：Nature Communications · 年份：2016 · DOI：10.1038/ncomms11650 · 被引用次数：865 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Tactile and Sensory Interactions、Green IT and Sustainability

Flexible, wearable sensing devices can yield important information about the underlying physiology of a human subject for applications in real-time health and fitness monitoring. Despite significant progress in the fabrication of flexible biosensors that naturally comply with the epidermis, most designs measure only a small number of physical or electrophysiological parameters, and neglect the rich chemical information available from biomarkers. Here, we introduce a skin-worn wearable hybrid sensing system that offers simultaneous real-time monitoring of a biochemical (lactate) and an electrophysiological signal (electrocardiogram), for more comprehensive fitness monitoring than from physical or electrophysiological sensors alone. The two sensing modalities, comprising a three-electrode amperometric lactate biosensor and a bipolar electrocardiogram sensor, are co-fabricated on a flexible substrate and mounted on the skin. Human experiments reveal that physiochemistry and electrophysiology can be measured simultaneously with negligible cross-talk, enabling a new class of hybrid sensing devices.