Peter Nilsson, Linköping University (IMAGE) Linköping University Caption Peter Nilsson, Professor of Bioorganic Chemistry at Linköping University, Sweden. Credit Karin Söderlund Leifler Usage Restrictions Please use appropriate caption and attribution when using this image 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.