A tasty treat it's not, but Kodak has developed and patented an ingestible RFID tag that could be used by healthcare professionals to explore a patient's digestive system, or monitor food and medicine intake.
The tags are designed to disintegrate in the body, allowing them to be used in other parts of the body for diagnostic purposes. For patients with artificial joints, an RFID tag could degenerate with the joint, providing an early warning system for a joint that might be failing.
Source: NewScientist.com
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