Figure 3

(A) Photograph of the electrospun nanofiber film. (B) SEM micrographs of the electrospun nanofiber film. (C) Surface morphology of (i) control, (ii) PLGA/NAT-Os, (iii) PLGA/Os-DA, (iv) PLGA/NAT-IGF1, (v) PLGA/IGF1-DA and (vi) PLGA/Os-DA/IGF1-DA electrospun fibrous scaffolds.