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. 2020 May 15;6(20):eaaz5093. doi: 10.1126/sciadv.aaz5093

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Copyright © 2020 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. 2 — (A) Scheme of the SP and MC molecules. Vis, visible. (B) Images taken at different values of stretch. Photo credits: Yinjun Chen and C. Joshua Yeh (ESPCI Paris). (C) Chromatic change as a function of stretch for the images extracted from the video of uniaxial extension. (D) Calibration curve for the stress as a function of the blue and red chromatic change. All tests were carried out for the EA0.5-0.05(2.23) materials.