reviewNano-Micro LettersMay 24, 2023DIAMOND OA

Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors

Sun Yat-sen University · State Key Laboratory of Optoelectronic Materials and Technology

PubMed
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Abstract

Breathing is an inherent human activity; however, the composition of the air we inhale and gas exhale remains unknown to us. To address this, wearable vapor sensors can help people monitor air composition in real time to avoid underlying risks, and for the early detection and treatment of diseases for home healthcare. Hydrogels with three-dimensional polymer networks and large amounts of water molecules are naturally flexible and stretchable. Functionalized hydrogels are intrinsically conductive, self-healing, self-adhesive, biocompatible, and room-temperature sensitive. Compared with traditional rigid vapor sensors, hydrogel-based gas and humidity sensors can directly fit human skin or clothing, and are more…

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