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SEM images of FA-functionalized gelatin–AuNPs composite scaffolds and FA-functionalized gelatin and gelatin control scaffold: (a) G (gelatin scaffold), (b) FA-G (FA-functionalized gelatin scaffold), (c) FA-G/R40, (d) FA-G/R70, (e) FA-G/R110, (f) FA-G/S40, (g) FA-G/S70, (h) FA-G/S110. Scale bar: 500 μm.
