Smart Bandage with Inductor‐Capacitor Resonant Tank Based Printed Wireless Pressure Sensor on Electrospun Poly‐ <i>L</i> ‐Lactide Nanofibers

Easy to use multifunctional wearable devices, with no wires hanging around, are needed for real time health monitoring at user's comfort. Herein, an inductor-capacitor (LC) resonant tank-based wireless pressure sensor, screen-printed on electrospun Poly-L-lactide (PLLA) nanofibers-based flexible, biocompatible, and piezoelectric substrate is presented. The printed tank (resonant frequency of ≈13.56 MHz) consists a planar inductor connected in parallel interdigitated capacitor. capacitance, the capacitor present varies response applied pressure. As result, changes LC works as sensor. sensor exhibited high sensitivity 0.035 kP−1 1200 Hz kPa−1 operation excellent durability (over 1800 cycles). highest (1.75-fold higher) among sensors reported so far. Finally, presented integrated compression bandage demonstrate its potential online sub-bandage application optimum by bandage, together electroceutical arrangement facilitated PLLA substrate, can accelerate cell regeneration hence wound healing.