Bacterial Asssassins (IMAGE) Brown University Caption Iron-oxide nanoparticles developed at Brown University target an infected prosthesis, penetrate a bacterial film on the implant’s surface and thwart the colony by killing the bacteria. The nanoparticles also are believed to help natural bone cell growth. Credit Erik Taylor, Brown 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.