Several pricks into your finger to track your blood sugar level can be little painful but more a hassle. You might sometime wish for a machine which could be attached to your body and immediately detects your glucose level. Chemical engineers at Massachusetts Institute of Technology (MIT) are working on carbon nanotubes that could be injected under the skin to reveal blood glucose levels. Paul Barone and Prof. Michael Strano are working on a new type of blood glucose monitor that could not only eliminate the need for finger pricks but also offer more accurate readings. Strano and Barone’s sensing system consists of a "tattoo" that's designed to detect glucose, the nanotubes are wrapped in a polymer that is sensitive to glucose concentrations. A wearable device roughly the size of a wristwatch shines infrared light through the skin and onto the nanotubes, which fluoresce when in contact with glucose, thus displaying the patient’s glucose level. The researchers plan to