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AFM images of the hydrogels studied here, and distributions of fibre widths as measured on the AFM images (A-D). Hydrogel nanotopography of Fmoc-FF/S (A) and Fmoc-FF/S/RGD (C) without added Hap, and Fmoc-FF/S (B) and Fmoc-FF/S/RGD (D) after incorporation of Hap (Scan size 2 µm2, Scale bar 400 nm).
