Airborne hazardous chemicals can be dilute, mobile, and hard to trap. Yet accurately measuring these chemicals is critical in protecting human health and the environment. Now, a new, small, low-cost device, nicknamed ABLE, could make the collection and detection of airborne hazards much easier and faster. The device, just four by eight inches across, was devised by Jingcheng Ma, assistant professor of mechanical engineering at the University of Notre Dame, and researchers at the University of...