NanoSIMS (image) University of Vienna Caption Detection, by NanoSIMS, of hydrogen-dependent carbon dioxide fixation by single Nitrospira cells. The warmer the color, the more carbon dioxide was incorporated by the cells. Credit Copyright: Arno Schintlmeister, University of Vienna Usage Restrictions The image may only be used with appropriate caption or credit. 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.