Next‐Generation Wearable Smart Devices Through Two‐Dimensional Molybdenum Dichalcogenides Nanostructures

The rapid evolution of wearable technology has intensified the demand for advanced, multifunctional materials that enable seamless human health monitoring, environmental sensing, and the integration of intelligent systems. As wearable sensors become increasingly integrated into smart technologies, they are revolutionizing remote health tracking, personal wellness management, and environmental monitoring. Among the diverse range of materials explored for such applications, two‐dimensional (2D) transition metal dichalcogenides (TMDs) have emerged as frontrunners because of their exceptional mechanical flexibility, superior electrical conductivity, optical tunability, and distinctive surface chemistry. In particular, molybdenum dichalcogenides (MoX 2 , X = S, Se, Te) have demonstrated remarkable potential in next‐generation wearable devices, offering tunable electronic properties, high sensitivity, and excellent stability. This review provides a comprehensive overview of recent advancements in MoX 2 ‐based wearable supercapacitors, gas sensors, and health monitoring technologies, emphasizing their fundamental properties, fabrication strategies, and integration challenges. Unlike conventional materials, MoX 2 nanostructures enable the development of ultrathin, high‐performance, and highly adaptive wearables with enhanced functionalities. Additionally, we present a holistic perspective that bridges material science with real‐world applications, offering a strategic roadmap for future research in wearable devices.