Scientists created a mini biohybrid robot using algae, to travel through people in response to magnetic signals, that could one day carry drugs to specific parts of the body, minimizing side effects. What’s more, the robot—and its magnetic coat—appear to kill cancer cells.

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Scientists created a mini biohybrid robot using algae, to travel through people in response to magnetic signals, that could one day carry drugs to specific parts of the body, minimizing side effects. What’s more, the robot—and its magnetic coat—appear to kill cancer cells.