Fig. 3: Characteristics of two PRFE therapeutic modes.
From: Smartphone administered pulsed radio frequency energy therapy for expedited cutaneous wound healing
a The experiment setup (an oscilloscope connected with a PRFE-Bandage powered by a smartphone) and an equivalent circuit model of the antenna and the rectifier as the NFD device. b Carrier waveforms and pulsed waveforms of two preprogrammed therapeutic modes: NFC carrier frequency at 13.56 MHz and pulsed carrier waves from Mode 1 and Mode 2 (left); Doubled carrier frequency at 27.12 MHz, and pulsed carrier waves from Mode 1 and Mode 2 (right). c Electric field strengths at different distances radiated from the NFC-enable smartphone. d Electric field strengths on the PRFE-Bandage powered at different distances from the smartphone. e Emission power of the radiator electrode ring (RER) of the PRFE-C Bandage under different loads in Mode 1 and Mode 2. f–i Stress and durability tests of the PRFE-Bandages (n = 10). Electromagnetic field of PRFE-C system under two therapeutic modes as a function of repeated folding cycles (f), bending angles (g), soaking with 24 h of duration, (h) and temperature variation from 25 °C to 90 °C (i).
