Tiny Magnetic Robots Infiltrate Tumors to Destroy Cancer

Researchers have figured out how to deliver cancer-killing compounds (called enterotoxins) to tumors using bionic bacteria that are steered by a magnetic field. These “micro-robots” can hunt down and converge on a specific tumor, then shrink it by releasing the bacteria's own naturally produced anti-cancer chemicals. The results were recently published in the journal Science.

Cancer is such a complex disease, it’s hard to combat it with one weapon,” says , a micro-roboticist at the Swiss Federal Institute of Technology (ETH) in Zürich, Switzerland and the first author of the new study.
She and her lab hope that these magnetic, bacteria-riding little robots will offer a precise and powerful addition to the cancer treatment toolbox.

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