Kang, Minki Yum, Han-Yup Kim, Hyoung Taek Park, Byung-Joon Cho, Daniel Sanghyun Choi, Younghwan Kim, Hye Jin Cho, Youngmin Kim, Young-Jun Lee, Dong-Min Lee, Dong-Gyu Song, Hyun-Cheol Nam, Soo Hyun Lee, Jong Hee Choi, Byung-Ok Kim, Sang-Woo 2024-06-28T08:00:08Z 2024-06-28T08:00:08Z 2024-06-28 2024-08 0935-9648 https://pubs.kist.re.kr/handle/201004/150144 Self-powered electrical bandages (SEBs), integrated with wearable energy harvesters, can provide an effective and autonomous electrical stimulation (ES) solution for rapid and scarless wound healing. A continuously operating, wireless, and applicable-to-comprehensive-wound ES device is essential for the quick restoration of wounds and convenience. This work illustrates a SEB powered by body-coupled energy harvesting. The SEB continuously treats the wound with 60-Hz sinusoidal electrical potential gained from the coupling of the human body and ambient electrical waves. It is demonstrated that enough level of electrical potential can be applied to the wound, further enhanced by strong capacitive coupling arising from the use of high-permittivity poly(vinylidene fluoride-trifluoroethylene):CaCu3Ti4O12 (P(VDF-TrFE):CCTO) nanocomposite. The potential clinical efficacy of the SEB is illustrated by preclinical analysis of human fibroblasts and mouse wound model, thus confirming the successful expedition of wound recovery. This work suggests a new class of wearable devices to provide ES events and its potential for extension to other conventional wound care materials and device technology. An innovative SEB based on high-permittivity P(VDF-TrFE) nanocomposites is designed to provide autonomous and effective electrical treatment that accelerates wound healing by leveraging body-coupled energy harvesting from ambient 60-Hz EM waves. Combining human-centered energy solution and flexible, skin-conformable design, this work suggests the potential of the SEB as a straightforward, convenient, and practical wound care apparatus. image English WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Self-Powered Electrical Bandage Based on Body-Coupled Energy Harvesting Article 10.1002/adma.202402491 1 Advanced Materials, v.36, no.32 Advanced Materials 36 32 Y scie scopus 001243529500001 2-s2.0-85195548096 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article STIMULATION SKIN CELLS MIGRATION WOUNDS FIELDS ULCERS body coupling electrical bandage energy harvesting nanocomposite wound healing