Graphene Oxide Quantum Dots Promote Osteogenic Differentiation of Stem Cells from Human Exfoliated Deciduous Teeth via the Wnt/β-Catenin Signaling Pathway

Figure 4

SHEDs were cultured in the osteogenic induction medium containing GOQDs. Osteogenic differentiation was detected by (a) alizarin red S staining for 14 days: (A) optical photos and (B) microscopic images. (b) ALP activity after 3 and 7 days. Scale bar, 100 μm. , , , and vs. the control group. ^#, ^##, ^###p < 0.001, and ^#### vs. the 10 μg/mL GOQD group.

(a)

(b)