Fig. 11

Inverted phase-contrast micrographs show the morphology of the first passage Rabbit BM-MSCs in osteogenic medium (indirect contact toxicity test) of the four composite scaffolds extracts at day 1 after 24 h of incubation of cells with extracts (a, e) CL/CH, (b, f) CL/CH/C0, (c, g) CL/CH/C5, (d, h) CL/CH/C10 at 10× 20× respectively and (i‑l) at day 7; the morphology was the same for all extracts respectively, (m‑o) negative control at day 1 and day 7 and (p) PVC, after 24 h of culture with four composite extracts