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Title: In vitro evaluation of genotoxic effects under magnetic resonant coupling wireless power transfer
Authors: Mizuno, Kohei
Shinohara, Naoki
Miyakoshi, Junji  kyouindb  KAKEN_id
Author's alias: 水野, 公平
篠原, 真毅
宮越, 順二
Keywords: wireless power transfer
magnetic resonant coupling
cell growth
cell cycle distribution
comet assay
micronucleus formation
HPRT gene mutation
human fibroblast cells
12.5-MHz resonant frequency
Issue Date: 7-Apr-2015
Publisher: MDPI
Journal title: International Journal of Environmental Research and Public Health
Volume: 12
Issue: 4
Start page: 3853
End page: 3863
Abstract: Wireless power transfer (WPT) technology using the resonant coupling phenomenon has been widely studied, but there are very few studies concerning the possible relationship between WPT exposure and human health. In this study, we investigated whether exposure to magnetic resonant coupling WPT has genotoxic effects on WI38VA13 subcloned 2RA human fibroblast cells. WPT exposure was performed using a helical coil-based exposure system designed to transfer power with 85.4% efficiency at a 12.5-MHz resonant frequency. The magnetic field at the positions of the cell culture dishes is approximately twice the reference level for occupational exposure as stated in the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines. The specific absorption rate at the positions of the cell culture dishes matches the respective reference levels stated in the ICNIRP guidelines. For assessment of genotoxicity, we studied cell growth, cell cycle distribution, DNA strand breaks using the comet assay, micronucleus formation, and hypoxanthine-guanine phosphoribosyltransferase (HPRT) gene mutation, and did not detect any significant effects between the WPT-exposed cells and control cells. Our results suggest that WPT exposure under the conditions of the ICNIRP guidelines does not cause detectable cellular genotoxicity.
Rights: © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (
DOI(Published Version): 10.3390/ijerph120403853
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