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(A) Light-induced shape-memory behavior of original PU/GO network. (B) Light-induced shape-memory behavior of PU/GO network after light-induced plasticity. (C) SEM images of light-driven self-healing process. (D) Optical image of the photo welding process between two pieces of PU/GO. (E) Optical image showing the welding strength. Adapted with permission from ref (164). Copyright 2020 Elsevier.
