For diabetics, checking blood glucose levels is literally a pain. Current blood glucose meters require a prick of the finger to get a small blood sample that is then put onto a small paper strip, inserted into the meter, and analyzed. The strips are a recurring cost to diabetics, and the constant finger pricks can be a route for infection. Now a research team at Northeastern University has developed a method of reading blood glucose levels with an iPhone and a nanosensor tattoo.
The team's method works
