Researchers have demonstrated a new system in which a smartphone is used to tell engineered cells implanted in diabetic mice to produce insulin. The closed-loop system uses a digital glucometer to transmit data on the rodents’ blood glucose levels to a smartphone. The smartphone processes the data and then signals the implanted cells to deliver insulin. This is a step towards “a new era of personalized, digitalized precision medicine,” says researcher Haifeng Ye. Read more