Fig. 4.

(A) Colony-forming units of S. aureus and E. coli inoculated on HA scaffolds and four groups of hardystonite scaffolds for 12 h. Inhibitory rate of the scaffolds against (B) S. aureus and (C) E. coli. (D) Fluorescence microscopic images of HUVECs stained with F-actin (green) and DAPI (blue) after seeded on hardystonite scaffolds for 12 h. (E) The quantitative analysis of integrated fluorescence intensity of FITC and DAPI. (F) Viability of HUVECs seeded on HA scaffolds and four groups of hardystonite scaffolds for 1, 3 and 5 days. The cell culture plates without scaffolds were used as the blank control. (G) The angiogenesis genes bFGF and VEGF expression of HUVECs seeded on the test scaffolds for 5 days. (*p < 0.05, **p < 0.01).