Mina Leiviskä, second author of the paper (IMAGE) University of Groningen Caption This is Mina Leiviskä, second author of the Frontiers in Nanotechnology paper. Credit University of Groningen Usage Restrictions With credit 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.