Safety assessment of the electromagnetic fields generated from wireless power transfer system using resonant coupling

对于制造的曝光装置，技术指标如下：主峰值工作谐振频率12.6 MHz，传输效率72.4%。我们在提高谐振传输效率方面做出了努力。最终，在37℃、100%湿度、5%CO2等条件下，细胞的传输特性呈现单峰，传输效率为85.4%。通过电磁场模拟器，在最大功率传输时，电池暴露的磁场强度约为170A/m。此外，电场强度约为160V/m，比吸收率为24W/kg。为了保证细胞培养环境的稳定性，我们开展了对基本细胞动力学进行评价的工作。在细胞遗传毒性评价方面，我们同时进行了微核试验和彗星试验。从这些结果来看，在电磁场暴露下没有观察到显著的影响。

For manufacturing of exposure device, the specifications are as follows; the main peak operating resonance frequency 12.6MHz, a 72.4% transmission efficiency. We made efforts to improve the resonance transmission efficiency. Finally, it is possible to satisfy the cell culture conditions, such as the 37 degree, 100% humidity, 5% CO2, and the transmission characteristics shows a single peak at 85.4% transmission efficiency. By the electromagnetic field simulator, the magnetic field strength for cell exposure was about 170A/m at maximum power transmission. In addition, the electric field strength was about 160V/m, and the specific absorption rate was 24W/kg. The stability of the cell culture environment, we had performed that the work on the evaluation of the fundamental cell kinetics. For cellular genotoxic assessment, we had done both micronucleus test and comet assay. From these results, no significant effects were observed under exposure to electromagnetic fields.