Size-Based Chromatography (image) DOE/Lawrence Berkeley National Laboratory Caption With size-based chromatography, a hexagonally ordered array of gold nanoparticles is fabricated onto a hybrid live cell-supported membrane and underlying substrate. Membrane components move freely through the array provided they don't exceed its physical dimensions. This reveals organizational aspects of the membrane environment unobservable by other techniques. Credit Image courtesy of Jay Groves, et. al Usage Restrictions None 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.