This tiny, magnetic robot could roll, walk, and swim through the terrain of the human body

This millimeter-scale robot designed by researchers at the Max Planck Institute for Intelligent Systems could enable “applications in microfactories such as the construction of tissue scaffolds by robotic assembly, in bioengineering such as single-cell manipulation and biosensing, and in healthcare such as targeted drug delivery and minimally invasive surgery” with bots inside the body controlled by magnets. From their scientific paper in Nature:

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New Robotic Tweezers Can Grab A Single Human Cell

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The University of Toronto in Canada has developed a pair of robotic grippers that can apply as little of 20 nanoNewtons of force on an object, using its three-millimeters-long arms to grab cells 10 micrometers across and transport them. What’s more, the gripper has sensors that allow it to know how hard it’s grabbing something and keep it from running into things – an important development for robotic grippers.

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