Smartphone administered pulsed radio frequency energy therapy for expedited cutaneous wound healing

Mengxia Yu, Hongjia Yang, Haoteng Ye, Shuhuang Lin, Yujie Lu, Haoqiang Deng, Lulu Xu, Yongxin Guo, John S. Ho, Terry Tao Ye

Published: 2025, Last Modified: 04 Mar 2026npj Digit. Medicine 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Pulsed radio frequency energy (PRFE) therapy is a non-invasive, electromagnetic field-based treatment modality successfully used in clinical applications. However, conventional PRFE devices are often bulky, expensive, and require extended treatment durations, limiting patient adherence and efficacy. Here, we present a lightweight, cost-effective wearable PRFE system consisting of a flexible electronic bandage and a smartphone. The bandage, mainly composed of an NFC Frequency Doubler (NFD) and a Radiofrequency Energy Radiator (RER), is powered and administered by the smartphone to generate 27.12 MHz radio wave pulses, for simplified, smartphone-enabled PRFE therapy. Its ultra-flexible, battery-free design supports personalized wound care at a low-cost (
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