Research Article
Preparation and Biocompatibility of Core-Shell Microspheres for Sequential, Sustained Release of BMP-2 and VEGF
Figure 4
(a) Live/dead staining of osteoblasts after 3 days of exposure to the different formulations of core-shell microspheres. Magnification, ×40; (b) proliferation of osteoblasts exposed to the different formations of core-shell microspheres according to the CCK-8 assay, compared with the control group. (A) BMP-2/VEGF group; (B) BMP-2/blank group; (C) blank/VEGF group; (D) double/double group; (E) VEGF/BMP-2 group; (F) blank/blank group; (G) control group (no microspheres).
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