The finger pricks may soon be a thing of the past for diabetics: Scientists at Draper Lab are working on nano-inks with embedded sensors that would be injected into the skin and would fluoresce under infrared light in the presence of glucose. Look for medical tattoos within five years. R.C.J.
Instead of pricking your finger over and over to draw enough blood to test your blood sugar level after every meal, scientists at Draper Laboratory (Cambridge, Mass.) suggest that diabetics instead use a nanoscale sensor that can be injected into the skin like a tattoo. By shining an infrared light on the tattoo, blood sugar levels could be read at any time.
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