Figure 2.

Results of the cell encapsulation experiments and cytotoxicity assessment of the gels. Cell concentration given in cells/mm³ of gels composed of alginate and different charge ratios of chitosan to Ca²⁺ for 1 and 5 days of culture (a). The percentage of living cells counted from confocal microscopy images for the same gels compared for 1 and 5 days (b). Representative images of encapsulated cells can be found in the Supplementary Materials (Figure S3). Results of the XTT assay of hBM-MSCs cultured together with gels of different compositions for 1 and 5 days (c). An asterisk indicates statistical significance (p ≤ 0.05).