Printing ‘soft robotics’ and wearable tech with liquid metal

Researchers at Purdue University have outlined a way to mass-produce circuits made of liquid-metal alloys using inkjet-printing technology, paving the way for “soft robots” and other kinds of flexible electronics.


The production method is called mechanically sintered gallium-indium nanoparticles. While that’s a mouthful of marbles, it’s actually pretty straightforward. You make the ink by taking liquid metal and dispersing it in a non-metallic solvent using ultrasound. The result is ink that could work in an inkjet-style printer…

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