Tsinghua University's Micro-Nano Electronics Department Ren Tianling team developed a multi-layer graphene skin electronic skin. The device has high sensitivity and can be directly attached to the skin for detecting breathing, heart rate, vocalization, etc., in the future, in motion monitoring, sleep monitoring Biomedical and other aspects have significant application prospects. This achievement was published in the famous journal of the American Society of Chemistry, Nano.
According to reports, electronic skin is an important biomedical sensor that requires good flexibility and scalability, high sensitivity, good fit and comfort. Graphene is an ideal material for electronic skin due to its excellent electrical conductivity and flexibility. However, how to make graphene more comfortable, beautiful, stable and reliable fit on the skin surface, so collecting various physiological signals is still an urgent solution. The problem.
Through the analysis of the laser direct writing graphene microstructure, Ren Tianling team established a crack theoretical model based on the graphene band structure, which better simulates the resistance change process caused by stress. Multi-layer graphene epidermis electronic skin can monitor the micro-deformation of the skin surface through resistance changes, and measure the physiological signs of breathing, heartbeat, speech, etc. by attaching to various positions such as masks, wrists, and throats. The tester does not affect normal activities when worn.
Source: People's Daily
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