Researchers at the University of Glasgow, in Scotland, have made a handheld diagnostic device. The device is composed of a handheld sensor attached to a smartphone app that measures metabolites in a patient's fluid sample. The handheld device uses a CMOS chip, a novel type of analysis, that is easy and inexpensive to produce. Once the data is collected and analyzed, using the smartphone app, it can aide doctors in diagnosing a stroke, heart attack, or even cancer. Read more about the handheld diagnostic device at University of Glasgow.