Wearable Biomonitoring with 2D Carbon‐Based Nanocomposite Hydrogels

Abstract Wearable bioelectronics facilitates continuous and efficient monitoring of physiological data, providing real‐time insights and personalized medical guidance. However, the reliance on rigid materials in many existing devices restricts flexibility and comfort, hindering their seamless integration with the soft, dynamic nature of human tissue for prolonged on‐body use. 2D carbon‐based nanocomposite hydrogels, renowned for their tissue‐like elasticity and softness, offer immense potential for advancing wearable bioelectronics. This review explores the synthesis methods and performance optimization strategies of these innovative materials. It categorizes the reinforcement mechanisms of 2D carbon‐based nanomaterials, emphasizing improvements in mechanical properties, electrical conductivity, and multifunctionality. Additionally, it highlights the diverse applications of these hydrogels in wearable bioelectronics and discusses the current challenges and future opportunities for their integration into flexible and wearable bioelectronic devices.