n. a field of science focused on matter 100 nm or smaller (a DNA double helix has a diameter around 2 nm). Such substances (e.g. nanoparticles, nanostructures, nanocrystals) include those at the molecular and atomic levels. Nanomedicine is the use of nanotechnology to deliver diagnostic or treatment modalities (e.g. drugs) directly to the relevant cells (e.g. cancer cells) in the human body.
Health Encyclopedia