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
Diode formed by joining two nanoscale carbon tubes
