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Motor made from bacteria parts is one of the smallest ever built

The natural motors that power tail-like appendages in bacteria seem to have a single evolutionary origin, allowing parts from different species to be combined to create a tiny new engine

By James Woodford

17 October 2024

An illustration showing the natural motor of a bacterium

RAMON ANDRADE 3DCIENCIA/SCIENCE PHOTO LIBRARY

A living motor made by combining different parts from bacteria is one of the smallest ever built, and could one day power tiny robots.

Many types of bacteria are propelled by natural motors that power the rotation of tail-like flagella. These rotary pumps, known as stators, are among the world’s oldest and smallest wheels, being thought to have evolved billions of years ago.

Read more

Evolution is evolving: 13 ways we must rethink the theory of nature

Every bacteria species with this kind of pump…

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