A Microfluidic Chip (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption A microfluidic chip of the type used in this study. Credit Alain Herzog (EPFL) Usage Restrictions Media purposes only. Commercial usage restricted; by permission only. 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.