Skin‐Like Hybrid Integrated Circuits Conformal to Face for Continuous Respiratory Monitoring

Abstract

AbstractTo perform wearable and continuous health monitoring, epidermal electronics for all kinds of sensing have been developed, yet neither organic nor inorganic materials‐based epidermal devices are able to perform the functions like signal collection, processing, transmission, or power supply. Here, a strategy is reported to build skin‐like hybrid integrated circuits (SHICs) with stretchable sensors and commercial chips for long‐term respiratory monitoring. It can independently perform signal acquisition, processing, converting, and wireless transmission with carrying power supply. Thermal theory model is established to characterize the breathing air's interaction with the sensor, which helps in signal analysis. Respiratory monitoring on human body is tested in diverse daily activities including exercising, dining, drinking, and sleeping with a custom‐developed phone application to record and display the respiratory signal. Results show that the SHIC is of high efficiency and accuracy to track the breath patterns continuously in both static and moving scenarios. Furthermore, the SHIC is a feasible and promising platform that can be extended with multiple sensors or actuators in individualized medical applications and physiological study.