Source: http://gizmodo.com/a-rub-on-tattoo-for-diabetics-could-mean-the-end-of-fin-1679477242
Pricking your finger for a blood glucose test will never, ever be fun. Thankfully, scientists have been hard at work on a bloodless and needleless alternative: a rub-on temporary tattoo that, as weird as it sounds, gently sucks glucose through the surface of the skin.