Professor Johannes Messinger (IMAGE) Uppsala University Caption Johannes Messinger, Professor at Department of Chemistry - Ångström Laboratory, Uppsala University Credit Mikael Wallerstedt Usage Restrictions Credit must be given to the creator. License CC BY 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.