Figure 3.

A, SEM micrographs and (B) fluorescent images (Live/Dead staining) of cells on the surface of the n‐HA/PU scaffold for 7 d: (a) MSCs group, (b) OMSCs group, (c) ECs group, (d) MSCs/ECs (0.5/1.5) group and (e) OMSCs/ECs (0.5/1.5) group. Effects of ECs in mixed co‐culture with OMSCs on cell proliferation and mineralization in OM medium. The flower‐like apatites are made up of flake apatite and inserted into the cell layers. One cell type mono‐culture and MSCs/ECs (0.5/1.5) as the control, MSCs, ECs and MSCs/ECs cultured in α‐MEM, OMSCs cultured in OM medium