Biofilm (IMAGE) University of Vienna Caption Biofilm Nitrososphaera viennensis: The cells fluoresce in blue (DAPI dye) and the "glues" of the biofilm glow in green (FITC dye for staining N-acetylglucosamine and / or N-acetylneuraminic acid). Credit Copyright: Melina Kerou Usage Restrictions The image may only be used with appropriate caption or credit. 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.