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Springer Science and Business Media LLC Nano-Micro Letters 17(1)
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    초록·키워드

    The rising flexible and intelligent electronics greatly facilitate the noninvasive and timely tracking of physiological information in telemedicine healthcare. Meticulously building bionic-sensitive moieties is vital for designing efficient electronic skin with advanced cognitive functionalities to pluralistically capture external stimuli. However, realistic mimesis, both in the skin's three-dimensional interlocked hierarchical structures and synchronous encoding multistimuli information capacities, remains a challenging yet vital need for simplifying the design of flexible logic circuits. Herein, we construct an artificial epidermal device by in situ growing Cu<sub>3</sub>(HHTP)<sub>2</sub> particles onto the hollow spherical Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> surface, aiming to concurrently emulate the spinous and granular layers of the skin's epidermis. The bionic Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>@Cu<sub>3</sub>(HHTP)<sub>2</sub> exhibits independent NO<sub>2</sub> and pressure response, as well as novel functionalities such as acoustic signature perception and Morse code-encrypted message communication. Ultimately, a wearable alarming system with a mobile application terminal is self-developed by integrating the bimodular senor into flexible printed circuits. This system can assess risk factors related with asthmatic, such as stimulation of external NO<sub>2</sub> gas, abnormal expiratory behavior and exertion degrees of fingers, achieving a recognition accuracy of 97.6% as assisted by a machine learning algorithm. Our work provides a feasible routine to develop intelligent multifunctional healthcare equipment for burgeoning transformative telemedicine diagnosis.

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