Structure of Photoswitchable Quorum Sensing Modulator (image) University of Groningen Share Print E-Mail Caption This is the structure of a Photoswitchable Quorum Sensing Modulator in its inactive (trans) form before activation with light. The four-carbon tail is depicted on the left (black = carbon, white = hydrogen). Azobenzene motif with the actual azo-switch in the middle (blue = nitrogen). On the right side, the polar head group is represented (red = oxygen) with the 3-oxo motif in between. Credit Wojciech Danowski, University of Groningen 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.