For years engineers have touted the future wonders of microscopic machines. (discovermagazine.com)
The idea of manipulating molecules to create microscopic machines or materials with unusual new properties has been around for years, but 2003 saw a flurry of breakthroughs. (discovermagazine.com)
Nanoengineers can even carve out molecular gears and levers that act as microscopic machines; in theory, some materials could be self - repairing, and others could carry out tasks inside our bodies, like scraping plaque from artery walls. (inc.com)