Quorum Sensing in No Flow and Flow (VIDEO) Princeton University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Researchers at Princeton University explored the effect of fluid flow on bacterial communication, or quorum sensing, which the single-celled organisms use when blocking pathways such as intestines, medical stents and wastewater pipes. An understanding of how bacteria communicate and act collectively could lead to new ways to stop disease and prevent blockages. In this video, researchers looked at how the flow of fluid inhibits quorum sensing by washing away chemical messengers that enable bacterial cells to communicate with each other. On the left, bacterial cells (red) growing in the absence of fluid flow exhibited quorum sensing (yellow), whereas cells on the right growing under conditions of fluid flow did not. Credit Video courtesy of Minyoung Kevin Kim et al., Princeton University Usage Restrictions Use credit: Video courtesy of Minyoung Kevin Kim et al., Princeton University 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.