BBC News - Electric motor made from a single molecule

http://www.bbc.co.uk/news/science-environment-14763223

Researchers have created the smallest electric motor ever devised.

The motor, made from a single molecule just a billionth of a metre across, is reported in Nature Nanotechnology.

The minuscule motor could have applications in both nanotechnology and in medicine, where tiny amounts of energy can be put to efficient use.