Scanning Tunneling Microscope Picture (IMAGE) Vienna University of Technology Caption Scanning tunneling microscopy and laser spectroscopy are used to study 2D structures of biomolecules Credit Universitá degli Studi di Trieste Usage Restrictions None 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.