Fig. 7
2D nacre-inspired films reinforced by interfacial crosslinking. a, b Illustration of the preparation process of an rGO-PDA nacre-mimetic film. c Low-magnification and d high-magnification SEM images of the fracture surface of the nacre-inspired film. e Comparison of the tensile strength and toughness of GO-based nacre-inspired films. Reproduced with permission59. f Fabrication strategy for the synthesis of ionically crosslinking nacre-like films. g, h Cross-section of GO-based layer films before (g) and after (h) ions were introduced. i Comparison of the tensile strength and toughness of ionically crosslinked films and other nacre-inspired binary films. Reproduced with permission64
