SDF-1α/OPF/BP Composites Enhance the Migrating and Osteogenic Abilities of Mesenchymal Stem Cells

Figure 2

(a) Schematic illustration of the construction of SDF-1α/OPF/BP composites for the repair of the bone defect. (b, c) SEM images of OPF/BP hydrogel. (d) AFM image of OPF/BP hydrogel. (e) Photograph of OPF/BP hydrogel discs. (f) Release profiles of SDF-1α/OPF/BP composites showed the concentrations of SDF-1α in the culture medium. The release curve showed all groups reached 80% release percentage on the 4th day.

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