Chinese Academy of Sciences produces biomimetic skin: will be used in consumer electronics / military / medical health

Researcher and team of Zhang Wei, Suzhou Institute of Nanotechnology and Nano-Bionics, Chinese Academy of Sciences, recently developed a new wearable flexible bionic tactile sensor - artificial bionic electronic skin. Because the device achieves high sensitivity and rapid detection of small forces, human health related physiological signals such as pulse, heartbeat, and throat muscle group vibration can be monitored in real time, and it has broad application prospects in the medical field. The relevant research results are published in the latest issue of the international journal Advanced Materials.

The flexible biomimetic sensor is an artificial flexible electronic device for realizing the sensing functions of human touch, smell, taste, hearing and vision. This type of device has great application potential in the fields of consumer electronics, military, medical health and other industries. With the development of flexible electronics, in recent years, the research of new attachable, wearable, portable, and foldable flexible electronic devices has been widely concerned by researchers at home and abroad, and has gradually become one of the most important frontier research fields.

It is understood that the principle of the electronic skin is to combine a flexible substrate with a micro-nano structure and a highly sensitive conductive nano-material, and to detect various physiological indexes of the human body by using a change in electrical signals caused by a small pressure or a touch, thereby realizing the human body. Real-time diagnosis and assessment of health status.

Based on the controllable preparation of carbon nanotube conductive film in the early stage, Zhang Wei and his team subtly replaced the expensive and preparative silicon-based template with low-cost silk as a template to realize a flexible conductive film with micro-nano structure. It can be controlled to build flexible bionic electronic skin with high sensitivity, low detection limit and high stability.

The research team is currently applying the biomimetic skin to the real-time rapid detection of human physiological signals such as pulse and speech. By analyzing the weak pressure changes and pulse waveform changes caused by the movement of the throat muscles, the speech recognition and speech recognition are realized. Accurate detection of different physiological states of the human body is expected to be widely used in speech-assisted output systems, human health evaluation and pre-disease diagnosis.

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