Bioactive Coating for Stents (image) Purdue University Caption This diagram illustrates the concept behind a new type of "bioactive" coating for stents used to treat brain aneurisms, including those suffered by military personnel from head trauma due to bomb blasts. Portions of the stents -- tubular structures made of a metallic mesh -- will be designed using coatings to attract magnetized cells to repair blood vessels damaged in trauma. Credit Purdue University image/Jean Paul Allain 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.