'Painless' Patch Delivers Insulin When Needed

Treatment for certain diabetes cases involves constant monitoring of blood-glucose levels and daily insulin shots. Scientists from the University of North Carolina (Chapel Hill, NC), North Carolina State University (Raleigh, NC), and the Changchun Institute of Applied Chemistry (Changchun, P.R. China) have created a painless “smart” patch that monitors blood glucose and releases insulin when levels climb too high.