Enzyme Pump (IMAGE) Penn State Caption This animation illustrates an enzyme pump pushing particles away, then drawing them in. It shows a top-down view of the simulated fluidic chamber containing an enzyme pump (represented by a yellow circle in the center). The pump causes a fluid flow that carries small, green particles, which are located near the bottom surface of the chamber. The direction of flow near the bottom of the chamber (indicated by arrows) changes over time. Initially, the flow pushes particles away from the pump (in the blue region). Later, the flow direction reverses and draws particles toward the pump (in the red region). View the animation here: http://science.psu.edu/news-and-events/2016-news/Sen2-2016 Credit University of Pittsburgh Usage Restrictions None 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.