New Nano Brushes Keep the Tiny Tidy

Even at the nano-scale–where machines and materials can be the size of atoms and molecules–there are messes to sweep, walls to paint, tubes to unclog, and electronics to power. And now there’s a way to make the tiniest of brushes to do these chores.

Made with bristles more than a thousand times smaller than a human hair, they are the tiniest brushes in the world. Yet they are durable and flexible enough to perform any brushing chore.