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. Author manuscript; available in PMC: 2021 Mar 29.
Published in final edited form as: Nat Mater. 2020 Jul 27;19(11):1230–1235. doi: 10.1038/s41563-020-0736-2

Fig. 3. Self-healing of extreme mechanical damage.

Fig. 3

a, Scratch damage on TRn11 protein-coated substrates was partially and totally healed, each healing requiring less than 2 s. b, Puncture damage of free-standing, flexible TRn11 protein films (by a needle through the film) was healed in less than 1 s. c, Total cut damage of TRn11 protein dog-bone-shaped samples (I and II) was healed in less than 1 s. Healed samples withstand large deformations of up to 200% stretching strain before failure from a random pristine location, and healed areas are at least as strong as pristine areas.