MXene-based flexible sensors for wearable applications

In recent years, with the rapid advances in flexible electronic device technology and the demand for a wide range of applications, MXene has emerged as an ideal multifunctional 2D nanomaterial for next-generation flexible sensors. It is unique in that it combines metallic conductivity, tunable surface chemistry and mechanical flexibility. These properties allow MXene to exhibit superior performance compared to other 2D materials, including graphene, in the fabrication of flexible sensors. This review summarizes the recent research progress in the field of different modes of flexible MXene-based sensors, including single-mode sensors, dual-mode sensors, and multimode sensors. First, MXene-based flexible sensors for pressure, strain, temperature, humidity, gas, and photoelectricity are described in detail. Then, the research progress of MXene in the field of flexible dual-mode sensors is systematically described, the key performance parameters of multimode sensors are summarized, and the applications of MXene-based flexible sensors in various fields are described. Finally, the future trends of flexible MXene-based sensors and the challenges they face are discussed, aiming to provide useful insights for future wearable applications.