Researchers tested the battery in an RFID tag that can be rolled up in a capsule and swallowed. It can then transmit information about the digestive tract to a

BWB Earth • 2026-09-26 00:47 UTC • By Billy Odell Tucker-Robinson

Researchers tested the battery in an RFID tag that can be rolled up in a capsule and swallowed. It can then transmit information about the digestive tract to a reader outside the body. [↧](https://t.co/6vXEvXFMvw) Scientists Invent a Digestible, Paper-Based Battery That Ca…

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