University of California Los AngelesOzcan, an electrical engineer, grew up in Turkey, where he saw that advanced medicine sometimes didn't reach the country's rural areas. In many parts of the world, ailments are never even diagnosed. Ozcan's medical devices could fix that. For example, a rural health-care worker could drop blood onto a slide and load it into Ozcan's phone-mounted microscope. The phone's camera captures an image of the sample which is then used to determine a diagnosis. Another of Ozcan's devices reads the results of rapid diagnostic tests, and an app interprets them almost instantaneously.