Application status and development trend of fiber-based flexible sensors
As flexible devices based on fiber materials,fiber-based flexible sensors not only exhibit the flexibility of textiles but also possess functions for signal perception and processing.Due to their structural diversity and compos-able design advantages,these sensors have attracted significant attention from researchers and hold broad development prospects in fields such as smart clothing,medical health,human-machine interaction,and robotic tactile sensing.This paper reviews recent research achievements in fiber-based flexible sensors,summarizing their application status across five major areas:force sensing,gas sensing,temperature sensing,humidity sensing,and biosensing.The structural de-sign strategies,performance improvement approaches,and preparation methods for fiber-based flexible sensors,tai-lored to meet diverse application requirements,are analyzed in detail.Comparisons are made between similar types of sensors from raw material preparation to working mechanisms.Finally,the challenges and opportunities for the future development of fiber-based flexible sensors are summarized and discussed.In the future,with ongoing improvements in sensitivity,resolution,and stability,fiber-based sensors are expected to evolve towards diversified and eco-friendly materials,integrated and intelligent functions,and expanded application fields.