Professor Björn Hof (IMAGE) Institute of Science and Technology Austria Caption Porträt von Professor Björn Hof, IST Austria. Credit Nadine Poncioni / IST Austria Usage Restrictions © Nadine Poncioni / IST Austria. 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.