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2025/12/25

MXene thin films transferred onto contact lenses demonstratehigh transparency and electromagnetic shielding

Waseda University (Japan)

Smart contact lenses (wearable devices in the form of contact lenses) are gaining attention as the next frontier in wearable technology. Yet their direct application to the eye poses significant challenges, including safety, comfort, and maintaining clear vision. In this context, electromagnetic shielding technology using MXene thin films, developed by Professor Takeo Miyake and his team at Waseda University’s Graduate School of Information, Production and Systems, is drawing increasing attention.

Smart contact lenses, driven by recent advances in micro/nano fabrication and wireless power/communication, are being researched for diverse applications, including AR (augmented reality) displays, biosensors, drug delivery, automatic vision correction, and biometric authentication. However, since many utilize electromagnetic waves, on the cornea, which may increase the risk of ocular disorders such as cataracts or other degenerative diseases. Addressing concerns over long-term and cumulative effects, while achieving both high transparency and flexibility, is essential. We asked Professor Miyake about the material properties of MXene thin-film lenses, the transfer and protective processes, the resulting optical, conductive, and shielding performance, and the prospects for practical implementation.

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