An ionic forcefield for nanoparticles

Nanoparticles are promising drug delivery tools but they struggle to get past the immune system's first line of defense: proteins in the blood serum that tag potential invaders. Now, Harvard researchers have developed an ionic forcefield that prevents proteins from binding to and tagging nanoparticles. In mouse experiments, nanoparticles coated with the ionic liquid survived significantly longer in the body than uncoated particles.