'World's smallest electric motor' consists of a single molecule
The molecular motor (yellow dot with black arms) sits on a copper surface (orange) and is powered by electrons from the tip of a scanning tunneling microscope (gray)
Article Summary
Remember back in the old days, when nano-scale motors were a clunky 500 nanometers across? That record was subsequently broken with a 200-nanometer model, but has now been broken again, by a motor that’s just one nanometer wide. By comparison, the width of a human hair is about 60,000 nanometers. The new motor, created by scientists at Tufts University in Massachusetts, is reportedly the first one ever to consist of a single molecule.
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