Fig. 8.

Cytotoxicity of eluents from collagen scaffolds. hBM-MSCs metabolic viability (CCK8) percentages with respect to control group exposed to extracts with eluents released from non-mineralized (0d-M) and mineralized collagen scaffolds without and with GL13K coatings after (A) 2 weeks and (B) 4 weeks of incubation in cell culture medium. Control: cell culture medium negative control. 4%, 5% and 7.5% EtOH: culture medium with 4%, 5%, and 7.5% ethanol positive controls. Different letters indicate statistically significant differences between groups (p-value<0.05).