We have all heard about the marvelous advances being made in the use of nanomaterials in imaging, cancer therapy and controlled release pharmaceuticals. What is less well known is the role of nanotechnology in prevention – from filtration and purification of air and water to the preparation of surfaces that are resistant to the growth of bacteria, mold and algae. This paper reviews some of the lesser-known but still vitally important roles that nanotechnology can play in keeping us well.
