Multimodal Camellia‐Bioinspired Wearable Electronics for Adaptive NO2 and Strain Sensing in Telemedicine and Environmental Safety

Abstract Pioneering flexible wearable electronics provide escalating technical support for proactive healthcare diagnostics and self‐management. Elaborately creating exquisite flower‐inspired materials can customize and extend the versatile perception capacity of high‐performance devices toward multifold stimuli. However, realistic mimicry, both in the petals' 3D hierarchical structures and synchronous sensing multistimuli information capacities, remains challenging yet vital for redefining minimalist design paradigms for adaptive perceptual logic devices. Herein, a camellia‐bioinspired sensor is designed by assembling the Cu‐HHTP into camellia‐like Ni‐NDC through synchronous mimesis of camellia's distinctive structure and functions. The biomimetic Ni‐NDC@Cu‐HHTP sensor bestows dual‐mode response toward both NO 2 and strain stimuli, along with high response ( |∆R/R 0 | ×100% = 62.3% to 30 ppm), fast response kinetics (150 s) and robust stability (>10 days) to NO 2 , as well as a wide 45–250% of strain range, 500‐cycle and rapid response time of 616 ms and recovery time of 350 ms. Finally, a smart wearable alarm system for monitoring environmental safety and health is developed by implanting the biomimetic dual‐mode sensor into a logic circuit module. This system can evaluate and judge characteristic risk factors associated with environmental safety and asthmatic health, such as outside nocuous NO 2 gas, abnormal metacarpophalangeal point and proximal interphalangeal joint motor behaviors and exertion degrees of limbs. This work is promising to establish intelligent versatile healthcare platform for burgeoning environmental monitoring and health management in transformative telemedicine.