Randomized trial shows enhanced sensing performance in flexible piezoresistive sensors, indicating potential for wearable technology.
Key Points
This work aims to develop flexible piezoresistive sensors that combine high sensitivity with a wide pressure detection range for wearable applications.
Constructed sensors using electrospun PVDF/PAN fiber networks, polydopamine surface modification, and in situ polypyrrole polymerization.
Optimized polymerization parameters to study the relationship between polypyrrole morphology and sensing performance.
Achieved a sensitivity of 220.88 kPa−1 for the optimized sensor (pyrrole concentration of 3 g/L) at a pressure range of 0–10 kPa.
Demonstrated stable linear signals up to 1 MPa with durability over 5000 cycles and good biocompatibility.