Fig. 5From: Effect of graphene oxide/ poly-L-lactic acid composite scaffold on the biological properties of human dental pulp stem cellsExpression of genes related to osteogenic differentiation in DPSCs incubated on different concentrations of GO/PLLA scaffolds for 7 and 14 days. (A, B)RUNX2. (C, D) COL1. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001, compared with controlBack to article page