New silk materials can wrinkle into detailed patterns, then unwrinkle to be 'reprinted' -- K Trade Fair

New silk materials can wrinkle into detailed patterns, then unwrinkle to be 'reprinted'

Passing a voltage across a heating element connected to the silk bilayer expands the material and erases the wrinkle pattern (left). Cutting off voltage allows material to cool and the wrinkle pattern appears (right). Image: Fio Omenetto, Tufts University