Thin-Layer Hydroxyapatite Deposition on a Nanofiber Surface Stimulates Mesenchymal Stem Cell Proliferation and Their Differentiation into Osteoblasts

Figure 4

The moduli of elasticity, the ultimate strain, and ultimate stress of the group of pure PCL/PVA composite (type I) and the group of the PCL/PVA composite covered by HA layer (type II). There is a significant difference in the moduli of elasticity between these groups (determined by 𝑡-test; 𝑃=0.04) (a) and also in the ultimate strain (𝑃<0.001)  (b), but not in the ultimate stress (𝑃=0.26) (c). Mean is the mean value, SE is the standard error.

(a)

(b)

(c)