SALT 2 (IMAGE) Rice University Caption An illustration shows two modes of transferrin-nylon interaction, a "hopping" mechanism known as CTRW (orange) and single-site adsorption-desorption (blue). Rice University chemists showed how salt modifies surface interactions in chromatography used to separate drug proteins and suggested limiting CTRW diffusion in the stationary phase will improve separation. Credit Landes Research Group/Rice University 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.