Japan scientists make smiling robot with 'living' skin

Japanese scientists have used human cells to develop an equivalent to living skin that can be attached to robotic surfaces to flash a realistic smile.

The University of Tokyo researchers published their findings this week along with a video of the gooey-looking pink material being stretched into an unsettling grin. They used a "skin-forming cell-laden gel" to create a "robot covered with living skin", according to their study in the journal Cell Reports Physical Science.