Yaoyi Li and Mingxing Chen, University of Wisconsin - Milwaukee (image) University of Wisconsin - Milwaukee Share Print E-Mail Caption Yaoyi Li (foreground) and Mingxing Chen, UWM physics postdoctoral researchers, display an image of a ribbon of graphene 1 nanometer wide. In the image, achieved with a scanning-tunneling microscope, atoms are visible as "bumps." Credit Troye Fox, UWM Photo Services Usage Restrictions with credit Share Print E-Mail 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.