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Contact: Caroline Perry
Harvard University

Stretch with Crack

Caption: The researchers used a razor blade to cut a 2-cm notch across the gel. In the image above (left), the gel has been stretched very slightly so that the notch is visible. This damaged gel was still able to stretch to 17 times its initial length without breaking.

Credit: Photo courtesy of Jeong-Yun Sun

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Related news release: Tough gel stretches to 21 times its length, recoils, and heals itself

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