柔性生物电传感技术

Bioelectricity is one of the important characteristic signals for body conditions, and could be monitored for disease diagnosis. In last decades, people have been constantly exploring and improving bioelectrical signal sensing technology. However, the shortcomings of traditional bioe-lectric sensing devices have become more and more prominent, which cast shadow on their applications of wearable health-monitoring system. Recent, flexible electronics with novel advanced functional materials promote revolutionary technique to monitor bioelectricity. Compared with traditional bioelectric sensors, the flexible device has many advantages such as good stretchability, portability, small size, low cost, and good biocompatibility. There are many issues need to be resolved because most of the flexible materials are insulative and have weak adhesion to metals. For example, how to configurate flexible substrates and conductive materials with micro-patterns as suitable electrode for flexible electronics? How to prolong the effective working time by decreasing power consumption and improving biocompatibility? This review paper summarizes recent progress of flexible sensing technology for monitoring bioelectricity. The paper presents the methods for preparation of flexible bioelectrical electrodes, as well as their applications in monitoring health-related signals such as ECG(electrocardiogram), EEG(electroencephalogram), EMG(electromyogram), and EOG(electro-ophthalmogram). At last, the paper ends with an analysis of challenges and prospect of flexible sensing technology for monitoring of bioelectricity.