A team of researchers from the University of Houston (UH) and Korea have developed a contact lens capable of checking a wearer's glucose levels noninvasively through their tears.
Developed by researchers from UH, the Korea Advanced Institute of Science and Technology and the Korea Institute of Science and Technology, the new technology reportedly uses surface-enhanced Raman scattering spectroscopy. The technology consists of a tiny device built from multiple layers of gold nanowires placed on top of a gold film and produced using a solvent-assisted nanotransfer printing. While traditional nanofabrication normally relies on a hard substrate, for this project the layered nanoarray was reportedly produced on a hard substrate, then lifted off and printed onto a soft contact lens.
According to researchers, the glucose-sensing contact lens is just one potential application of this technology
The research was recently published in the journal Advanced Materials.
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Source: University of Houston