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Tiny robots crawl through mouse’s stomach to heal ulcers

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Tiny micromotors – autonomous vehicles about the width of a human hair – were used to deliver drugs to the stomach of a mouse with a bacterial infection. The small robots moved through the mouse’s body using bubbles to propel themselves.

“The tiny vehicles consist of a spherical magnesium core coated with several different layers that offer protection, treatment, and the ability to stick to stomach walls. After they are swallowed, the magnesium cores react with gastric acid to produce a stream of hydrogen bubbles that propel the motors around.”

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Tiny robots crawl through mouse’s stomach to heal ulcers

 

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