Flexible and Wearable Biosensors

Recent progress in flexible and wearable biosensors has revolutionized health monitoring and diagnostics. These devices enable ongoing, non-intrusive, and real-time tracking of various physiological metrics, including heart rate, blood oxygen levels, bioelectric signals, and biomarkers. This chapter delves into different sensing techniques, namely electrochemical, optical, field-effect transistor, and physical sensors. It covers the essential concepts, design of sensors, selection of materials, and fabrication processes pertinent to flexible and wearable biosensors. Additionally, the chapter provides insights into the field's future prospects, positing that advancements in nanotechnology and artificial intelligence could substantially enhance the functionality of flexible and wearable biosensors, potentially accelerating their practical application.