Joseph Brain, Harvard University (IMAGE) Terry Collins Assoc Caption Prof. Joseph Brain of the T.H. Chan School of Public Health, Harvard University, leads efforts to create 'smart' nanoparticles that deliver appropriate levels of diagnostic and therapeutic agents to the deepest, tiniest sacs of the lung, a process potentially assisted by the use of magnetic fields. Credit Harvard 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.