Biocompatibility of rBMSCs and hGFs on the JEM membrane. (a) CCK8 assay for rBMSCs and hGFs grown on JEM(+), JEM(−), and control membranes at 1, 3, and 5 days, n = 6. (b) Immunofluorescence images of the cytoskeletal network (phalloidin, green) and nuclei (DAPI, blue) of rBMSCs and hGFs on JEM(+), JEM(−), and control membranes at 3 days. The scale bar in b is 100 μm ∗p < 0.05, compared with Control; #p < 0.05, compared with JEM(+). Statistically significant differences (p < 0.05) were measured using a one-way analysis of variance (ANOVA) combined with the Student–Newman–Keuls (SNK) multiple comparison post hoc test.