If you had any experience with checking your blood glucose levels, then you should know that it can be an annoying and prickly process. For those of you who don’t it essentially involves you jabbing yourself with a needle to draw blood, putting that blood into a small paper strip, and using a small device to analyze the blood sample. Now, those days may be over, with a tool designed for iPhone by Northeastern University that allows your device to check glucose levels, using nanosensor tattoos.

TUAW has more on the story:

The team’s method works this way: they inject a patient with subdermal nanoparticles containing “fluorescent dye, specialized sensor molecules…and a charge-neutralizing molecule.” The molecules attach to glucose, release ions, and alter the glow of the nanosensor tattoo based on the relative amount of glucose.

The team is also working on ways to measure blood sodium, as well as blood oxygen levels using technology that is equipped with the iPhone. This is no where close to being FDA approved, and is still being experimentally tested.

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