汗水
微流控
可穿戴计算机
毛细管作用
材料科学
纳米技术
蒸发
墨水池
流量(数学)
计算机科学
机械
嵌入式系统
复合材料
物理
海洋学
地质学
热力学
作者
Xiujun Fu,Ye Qiu,Hengjie Zhang,Ye Tian,Aiping Liu,Huaping Wu
出处
期刊:Biomicrofluidics
[American Institute of Physics]
日期:2024-05-01
卷期号:18 (3)
摘要
In addition to the common blood and urine, fresh sweat contains a diverse range of physiological indicators that can effectively reflect changes in the body’s state. Wearable sweat sensors are crucial for understanding human physiological health; however, real-time in situ measurement of multiple biomarkers in sweat remains a significant challenge. Here, we propose a wearable microfluidic patch featuring an integrated microfluidic channel and evaporation pump for accelerated and continuous sweat collection, eliminating the need for additional sweat storage cavities that typically impede real-time detection. Capillary forces are harnessed to facilitate the rapid flow of sweat through the detection area, while an evaporation pump based on porous laser-induced graphene enhances sweat evaporation. The synergistic integration of these two components enables an uninterrupted flow of fresh sweat within the patch, ensuring real-time monitoring. The influence of channel size parameters on sweat flow velocity is analyzed, and the optimal width-to-height ratio for achieving the desired flow velocity is determined. By implementing a multi-channel parallel design with chamfering, liquid flow resistance is effectively reduced. Furthermore, the patch integrates sensor modules for sodium ion, chloride ion, glucose, and pH value measurements, ensuring excellent sealing and stability of the assembled system. This work presents a simplified approach to developing wearable sweat sensors that hold the potential for health monitoring and disease diagnosis.
科研通智能强力驱动
Strongly Powered by AbleSci AI