nanomachine

In the future, these nanomachines could be used to unclog arteries, for example.

Figuring out how key parts of the molecular syringes work may help scientists devise their own nanomachines.

You can imagine all sorts of programmable nanomachines that are specific instances of the universal constructor programmed for specific tasks.

To the similarly impressive inner spaces of matter, where viral nanomachines swarm across cells as if they were planets.