Epidermal wearable optical sensors for sweat monitoring

作者：Jing Wang, Yong Luo, Zhongzeng Zhou, Jingyu Xiao, Tailin Xu, Xueji Zhang · 发表于：Communications Materials · 年份：2024 · DOI：10.1038/s43246-024-00518-z · 被引用次数：78 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Tactile and Sensory Interactions、Gas Sensing Nanomaterials and Sensors

Abstract Wearable optical sensors have emerged as a promising technology, opening up a new way to monitor human sweat. With the advancement of integrated optical devices, optical materials, and structure design, the current optical skin interfaces primarily employ four analytical methods to transmit sweat chemical information into optical signals: colorimetry, surface-enhanced Raman spectroscopy, fluorescence, and electrochemiluminescence. To improve portability, many external laser source devices and imaging modules are upgraded based on different optical methods. Here, we summarize recent progress in optical sweat sensors, focusing on their principles, development, advantages, and limitations. Finally, current challenges and future prospects of wearable optical sensors in materials, sweat collection, data analysis, and external integrated electronics are discussed.