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. 2021 Jul 23;7(30):eabg3677. doi: 10.1126/sciadv.abg3677

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Copyright © 2021 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) POM images of printed LCE showing birefringence caused by shear-induced alignment. (B) Stress-strain curves of LCEs that are parallel shear printed, nonshear printed, and perpendicular shear printed with respect to the direction of the axial stress in tensile testing. SD is demonstrated as the colored shaded areas. (C) Comparison of order parameters calculated from nonshear printed LCE and shear printed LCE with different shearing speeds. (D) Principle of thermal bending (T > T_NI) in the printed LCE actuators. (Inset) Schematic showing reversible reconfiguration of cross-linked LCE polymer network in the layered structure. A.U., arbitrary units.