Fig. 6From: Reduced graphene oxide coating enhances osteogenic differentiation of human mesenchymal stem cells on Ti surfacesMineralization of hMSCs on intact Ti and rGO-Ti substrates. a Digital images of ARS stained hMSCs on intact Ti and rGO-Ti substrates and b Quantification of ARS staining. The results are shown as the mean ± SD (n = 6, ns: not significant, ****: p < 0.0001)Back to article page