Current Trends and Emerging Opportunities for 2D Materials in Flexible and Wearable Sensors

The emergence of two-dimensional (2D) materials has dramatically transformed the landscape of modern electronics, particularly in the realm of wearable, flexible, and next-generation devices. This feature article summarises our achievements and the potential of 2D materials in developing a wearable device prototype, highlighting key material properties, device architectures, and fabrication strategies for innovative applications in healthcare monitoring, multimodal sensing, neuromorphic sensing, human-machine interfaces, and environmental sensing. Emphasis is placed on understanding the interplay between material characteristics and sensor performance, including sensitivity, stability, and biocompatibility. Additionally, challenges such as scalability, integration with flexible substrates, and long-term reliability are discussed alongside potential solutions and future directions. This review presents an in-depth study of the recent progress of the emerging potential of 2D materials to create groundbreaking future aspects of flexible and wearable sensing technologies.