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While tech giant Google continues to struggle to make a contact lens for monitoring diabetes, researchers at Ulsan National Institute of Science and Technology (UNIST) in South Korea have offered up at least one part of the puzzle: better wearability. Through the use of a hybrid film made from graphene and silver nanowires, the UNIST researchers have made contact lenses for detecting multiple biomarkers that are clear and flexible.

In research described in the journal Nature Communications, the UNIST researchers used graphene-nanowire hybrid films to serve as conducting, transparent, and stretchable electrodes. While the hybrid film alone does not perform any detection, the electrodes do ensure that the electrodes in the contact lenses don’t obscure vision and that they’re flexible enough to make wearing the lenses comfortable.

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