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. 2018 Jul 27;4(7):eaat8192. doi: 10.1126/sciadv.aat8192

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Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 3 — (A) Photographs depict that a scratch on the copolymer membrane can be autonomously cured after 6 hours at room temperature. (B) Optical microscopy image of a healed sample. (C) Photographs of a healed film before and after stretching. (D to F) The rod-shaped copolymer can be used to construct objects of different shapes. (G) Stress-strain curves of the healed samples [TA-to-iron(III) molar ratio of 18,000:1] with freshly cut interfaces. (H) Dependency of self-healing efficiency of the aged copolymers on time [TA-to-iron(III) molar ratios of 18,000:1 and 90,000:1]. Both the healing efficiencies are presented by the maximal strain (column) and the maximal tensile stress (dot) of the healed samples. (I) Proposed self-healing mechanism of the freshly cut and aged interfaces. Error bars show SD with n = 3 repeats.