Nanoparticle Aggregation (IMAGE) Rice University Caption Rice University researchers observed nanoparticle aggregation induced by low concentrations of unfolded serum albumin proteins. They believe the proteins unfold upon binding to gold nanoparticles and prevent other proteins from joining them to form a protective casing around the particle. Credit Rice University Usage Restrictions For news release purposes only. 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.