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Topography of Hap-decorated Fmoc-FF/S/RGD hydrogels. (A) 2 µm2 AFM images of Fmoc-FF/S/RGD incorporating Hap in a repeating pattern. (B) Enlarged AFM image of the area outlined in A showing Hap nanoparticles decorating the Fmoc-FF/S/RGD fibres. (C) Corresponding height profile of the linear scan indicated by the white arrow in B. (D) Schematic model of a hydrogel fibre incorporating Hap. Scale bar for A is 400 nm. Scale Bar for B is 200 nm.
