Fig. 5From: FLIM imaging revealed spontaneous osteogenic differentiation of stem cells on gradient pore size tissue-engineered constructsFLIM images of NAD(P)H for MSCs on a homogeneous and b heterogeneous scaffolds; c The values of the fluorescence lifetime contribution of the bound form of NAD(P)H during their cultivation in DMEM and in the medium for the induction of osteogenic differentiation; × 400. *statistically significant differences compared to the corresponding time point for the MSCs on scaffolds cultivated in DMEM; #statistically significant difference in MSCs on heterogeneous scaffolds cultivated in osteogenic medium compared to the corresponding time point for MSCs on homogeneous scaffolds cultivated in osteogenic medium; Mean ± SD, p-value ≤ 0.05Back to article page