3 Biofilm Samples in FTIR (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Fourier-transform spectromicroscopy imaging of three samples of archaea-dominated biofilms from the Muehlbacher Schwefelquelle, using the Berkeley Synchrotron Infrared Structural Biology facility’s bright infrared beams, differentiates between archaea and bacteria by their lipid and carbohydrate signatures and shows that organic sulfates and carbonated minerals are located with the bacteria. Credit Lawrence Berkeley National Laboratory, BSISB Usage Restrictions With credit as given 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.