The additional bands in the ultraviolet (after dilution with pure heptane) were (in nanometres) : 220 (m), 226 (m), 240 (m), 253 (m), 262 (m).
Distance was measured in micrometres and structural order in nanometres.
The silicon trees are only 10 nanometres across and 100 nanometres high.
These are actually aggregate sizes composed of much smaller grains, at least for the ferrihydrite particles, which are typically only a few nanometres in size.
The more ordered the structure, or the denser it is, the more the light diverges and the greater the retardance (in nanometres).
Thus, plasmas can induce specific surface chemistries that affect the top few tens of nanometres but generally do not change the bulk properties of the materials.
Since the size of atoms and molecules is measured in nanometres, that is nanotechnology.
A nanometre is one billionth of a metre, or approximately 10 hydrogen molecules lying end to end.
