講演情報
[10a-N305-5]Enhancing the Electromagnetic Shielding of Soft Contact Lenses
〇Saman Azhari1, Lunjie Hu1, Hanzhe Zhang1, Yuki Matsunaga2, Jun Hirotani2, Atsushige Ashimori3, Kazuhiro Kimura3, Takeo Miyake1 (1.Graduate School of Information Production and Systems, Waseda University, 2.Department of Micro Engineering, Graduate School of Engineering, Kyoto University, 3.Department of Ophthalmology, Yamaguchi University)
キーワード：
MXene、Electromagnetic Shielding、Soft contact lens
The rapid increase in the number of wireless devices is impossible to ignore. We are surrounded by wireless devices, and the number of these devices is increasing daily. Wireless charging, IoT, Bluetooth, GPS, 5G, etc., are just a few examples of how our lives are becoming more and more dependent on such technologies. Although it is still the beginning, the impact of these expansions on the body and health should not be overlooked. Cataract, the cloudy area in the lens of the eye that leads to a decrease in vision, often develops slowly and can affect one or both eyes, is one of the outcomes of being surrounded by electromagnetic radiation (EMR). Cataract can arise due to exposure to various types of radiation. For instance, X-rays may damage the DNA of lens cells; Ultraviolet light has been shown to cause cataracts; Microwaves may cause harm by denaturing protective enzymes or by damaging lens cells. Here we report a simple yet effective approach to tackle the influence of EMR on the eye by transferring a few micron-thick MXene film onto a commercially available soft contact lens. The results confirm the effectiveness of the transfer method in fabricating a transparent and conductive film that can shield more than 80% of the EMR at the GHz range while preventing MXene oxidation. In addition, the contact lens is able to protect the porcine eye against microwave radiation during in vitro measurement. This technique could potentially protect us in the inevitable future, which is filled with wireless devices and the resulting EMR.