particle size magnifier-scanning mobility particle sizer (PSMPS) (IMAGE) PNAS Nexus Caption High-resolution online nanoparticle measurements in the Purdue zEDGE test house via the particle size magnifier-scanning mobility particle sizer (PSMPS) from Durag Group. Credit Brandon E. Boor Usage Restrictions None License Original 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.