Patent 7229690 was granted and assigned to Massachusetts Institute of Technology on June, 2007 by the United States Patent and Trademark Office.
A microparticle can include a central region and a peripheral region. The peripheral region can include a nanoparticle, such as a metal nanoparticle, a metal oxide nanoparticle, or a semiconductor nanocrystal. The microparticle can be a member of a monodisperse population of particles.