ScienceDaily (Apr. 6, 2008) — Two Mayo Clinic researchers who study the role nanoparticles may play in hardening of the arteries and in the formation of kidney stones, will lead a symposium on how these super-small particles may affect the body’s physiology. Nanoparticles are a thousand times smaller than the bacteria, E. coli, but recent advances in microscopy have allowed researchers to watch them interact with cells in the body, said Virginia M. Miller and John C. Lieske of the Mayo Clinic College of Medicine. They will lead the symposium, “Using nanotechnology to answer physiological questions.”