Huanyu “Larry” Cheng, Dorothy Quiggle Career Development Professor in the Penn State Department of Engineering Science and Mechanics, has published a paper depicting the use of a new wearable health device. This device would deliver real-time medical data to those with eye or mouth diseases by analyzing saliva and tears. “We sought to create a device that collects both small and large substances of biofluids such as tears and saliva, which can be analyzed for certain conditions on a rapid, continuous basis, rather than waiting on test results from samples in a lab,” Cheng stated.