"The purpose of these nanoparticles is to introduce a new type of therapy -- to actually go inside individual cells ... and repair them, or, if there's a lot of damage, to get rid of those cells," explains James Leary of the University of Texas Medical Branch. Leary is leading the research along with Stephen Lloyd, and Massoud Motamedi, also from the University of Texas; Nicholas Kotov of Oklahoma State University; and Yuri Lvov of Louisiana Tech University.

See, this is really rad stuff...if things like this ever do really work, our whole world of medicine will be transformed. My question is, what are they doing to prevent an immune response when they inject these little capsules into the bloodstream? Because unless they program them to look like "self" to someones immune cells, people will have nasty immune responses to these little things. It will be like an allergic reaction from hell.

Voyage of the Nano-Surgeons