(IMAGE) Technical University of Munich (TUM) Caption This is a scanning tunneling microscopic image of the topography of melamine-linked terrylene-diimide molecules - right side: inserted model of the molecular nertwork (Scale bar: 2nm) Credit C. A. Palma / TUM 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.