These high-speed ‘nano-cranes’ could form molecular assembly lines


Things aren’t going well down at the ol’ nano-factory. They’re having trouble getting all those tiny workers to synchronize and move quickly together. But leave it to the Germans to get things running smoothly! All it took was a careful application of that newfangled technology “electricity.”

Tiny nano-scale machines formed from DNA could be the future of manufacturing things at small scale but great volume: drugs, tiny chip components, and of course more nanomachines. But moving simple, reusable machines like a little arm half a micrometer long is more difficult than at human scale. Wires for signals aren’t possible at that scale, and if you want to move it with a second arm, how do you move that arm?

For a while chemical signals have been used; wash a certain solution…

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