Optical Chromatography (IMAGE) Naval Research Laboratory Caption This is a microscope image showing a trapped cell in the optical chromatography setup - Cells are brought into the channel by the pressure-driven flow that runs from the top left to the bottom right of the image. As cells enter the channel, the laser shutter is opened and the beam pushes the cell from right to left. Flow is adjusted until the cell rests at the measurement location, at which point the flow rate is recorded and the cell is released. Credit Image courtesy of the US Naval Research Laboratory 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.