Tsinghua University successfully developed "electronic skin"

On August 9th, the team of Professor Tian Tianling from the Department of Micro-Nano Electronics of Tsinghua University has developed a multi-layer graphene skin electronic skin. The device has high sensitivity and can be directly applied to the skin for detecting breathing, heart rate and vocalization. Etc., has great application prospects in sports monitoring, sleep monitoring, biomedical and other aspects.
This achievement was recently published in the famous journal of the international nano-field "American Chemical Society â‹… 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, it is always a good idea to collect graphene more comfortable, beautiful, stable and reliable on the skin surface. The key issue to solve." Ren Tianling explained.
Through the analysis and research on the microstructure of laser direct writing graphene, Professor Ren Tianling established a theoretical model of cracks based on graphene band structure, which better simulates the change process of resistance caused by stress. “Multilayer graphene epidermis electronic skin can monitor the microscopic 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. "Ren Tianling said.
In addition, during the device development process, the team created a new process for wet stripping of graphene oxide, removing graphene oxide, leaving only graphene, making the device more aesthetically pleasing, more sensitive, and able to withstand higher temperatures.

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