Engineers 3D print a living tattoo with a new kind of ink

December 7, 2017

Bulky, electronics-filled wearables are on the out. MIT researchers have developed a new kind of “living tattoo” that could be used in place of today’s wearable sensors and touch displays. The tattoo, 3D-printed using genetically programmed bacterial cells, can light up when it detects various environmental stimuli. The researchers tested their technique by printing out a thin living tattoo shaped like a tree. The tree’s branches are sensitive to different…

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