Researchers have developed a way to manufacture microscale-sized machines from biomaterials that can safely be implanted in the body. Working with hydrogels, they have invented a new technique that stacks the soft material in layers to make devices that have three-dimensional, freely moving parts. The study demonstrates a fast manufacturing method they call “implantable microelectromechanical systems.”
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2017/01/170104145738.htm
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