Fig. 1: System structure of the PRFE-Bandage.
From: Smartphone administered pulsed radio frequency energy therapy for expedited cutaneous wound healing
a Illustration of the pulsed RF shortwave generated by PRFE devices. b Schematic diagram showing biophysical effect for promoting wound healing triggered by the PRFE therapy. c Exploded view showcasing the double-layer structure of the PRFE-Bandage (left), comprising NFD (an energy harvesting antenna connected with a full-bridge rectifier), and RER (radiation electrode ring), integrated on a flexible PI substrate and encapsulated with hydrogels, and schematic illustration of the proposed PRFE-Bandage mounted on a forearm wound (right). d Photographic depiction of various angles of the PRFE-Bandage (front side - upper left, back side - upper right; curled along long side - lower left, and by short side - lower right), highlighting its high flexibility. e Comparison of reported clinical PRFE treatment devices with our PRFE Bandage in daily treatment time, cost, and bottom area. (Colormap and triangles size map different levels of bottom areas). f The PRFE-Bandage is paired with a smartphone through the NFC function during treatment, and the APP is installed on the smartphone for treatment administration.
