Cellphone-based Protein Analysis (IMAGE) University of Pennsylvania Caption The researchers' detection system uses a standard cellphone camera to capture video of microdroplets as they pass by the lens. Fluorescent markers can be individually identified by matching them with the unique strobing light pattern they are illuminated by. Credit University of Pennsylvania Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.