Calcium/Cobalt Alginate Beads as Functional Scaffolds for Cartilage Tissue Engineering

Figure 1

Cumulative size distribution (a–d) and microscopic images (a′–d′) of Ca/Co alginate beads with encapsulated hADSCs at 2 h after preparation. ((a), (a′)) Control sample; ((b), (b′)) Co1.25 sample; ((c), (c′)) Co2.5 sample; ((d), (d′)) Co5 sample; and ((e), (e′)) Co10 sample. The mean bead diameters were as follows: control,  μm; Co1.25, ; Co2.5, ; Co5,  μm; and Co10,  μm.