Micro-motor powered nanobots would be propelled by gas bubbles that were made from a reaction with the contents of the stomach, and these nanobots have so far been experimented on successfully in the body of a live mouse. Measuring approximately 20 micrometers in length, 5 micrometers in diameter, and arriving coated in zinc, these nanobots will get about their job with a fervor, capable of traveling three times its body length each second.
Researchers claim that the deployed nanobots that arrived at the stomach walls remained attached to the lining for a dozen hours after ingestion, which goes to show how effective it could be if used in humans. Hearing about it reminds me of how scene where the T-Virus bonded with Alice’s cells in the Resident Evil movie series.