Fig. 4From: Fabrication and optimization of Nanodiamonds-composited poly(ε-caprolactone) fibrous matrices for potential regeneration of hard tissuesProliferation of (a) NIH/3 T3 and (b) MC3T3-E1 cells cultured on the PCL only (control) and ND/PCL fibrous matrices with varying ND concentration (0.5, 1, 2, and 3 wt%). * Significant difference between the two groups (p < 0.05)Back to article page