nanobot n.

Wouldn’t want to blast a cell because a nanobot spotted a strand of DNA for a mitochondrian [sic] and mistook it for a malformed gene.

The term ‘nanobot’ means a very small self-propelled programmed machine, and that includes many other varieties of intracellular devices than the ones currently under discussion.

The nanobots in the pills were too cheap to salvage; when they'd done their work they simply turned themselves off in your kidneys and you pissed them away.

Given the technology to fabricate virus-sized electromechanical devices, there would be no reason to prevent us from designing cholesterol-chompers, a sort of arterial ‘roto-rooter’, or even virus-destroying ‘nanobots’ to recognize and mechanically disassemble unwanted viruses and bacteria within the body.

She subvocalized a command to send nanobots scouring through her bloodstream; she sobered up fast, with a brief shudder.

Nobody knew exactly what it was that had spilled… The government was using nanobots to clean it up through.

He knows how to put his own stamp on some of the basic shared problems of characters in oh-god-i'm-being-taken-over-by-a-virus/nanobot/alien-intruder-inside-my-mind plots.

Jared maneuvered himself to look at Arist and drank it in until his BrainPal, sensing the first tenuous effects of the atmosphere, wrapped him in a protective sphere of nanobots that flowed from a pack on his back and secured him in the middle, to keep him from making contact with the sphere and crisping himself where they intersected.

Their bodies might contain some stray useful data—perhaps recorded to the memory of a medical nanobot.