Material with one or more external dimensions, or an internal structure, at nanoscale and which could exhibit novel characteristics compared to the same material at a larger scale.
Examples of nanomaterials include nanotubes, which are long, thin, cylinder-shaped structures of a few nanometres in diameter but with a length of up to several micrometres.
Source:GreenFacts
Image:
Diode formed by joining two nanoscale carbon tubes
