Smart pills filled with tiny needles could inject medicine directly into your stomach

www.technologyreview.com

"The device works by attaching itself to the inside of the stomach and then injecting a payload through the gastric wall. It involves some clever engineering to ensure it’s released at exactly the right time: a tiny, spring-loaded needle is released once the sugar glass that surrounds it is dissolved by acid in the stomach.

You won’t be able to feel it because there are no pain receptors within the gastrointestinal tract, says coauthor Robert Langer at MIT. It’s inspired by the shape of a leopard tortoise’s shell, which automatically self-rights no matter how it lands. This ensures the device will attach to the gastric wall regardless of how it tumbles."

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