Color-Changing Contact Lenses To Replace Blood Tests for Diabetics

January 2, 2010

Diabetics may soon be able to wear contact lenses that continuously alert them to variations in their glucose levels by changing colors – replacing the need to routinely draw blood throughout the day.

The non-invasive technology, developed by Chemical and Biochemical Engineering professor Jin Zhang at The University of Western Ontario, uses extremely small nanoparticles embedded into the hydrogel lenses. These engineered nanoparticles react with glucose molecules found in tears, causing a chemical reaction that changes their color.

Zhang received $216,342 from the Canada Foundation for Innovation (CFI) to further develop technologies using multifunctional nanocomposites.

Source – Medical News Today




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