A 3D-Printed PLCL Scaffold Coated with Collagen Type I and Its Biocompatibility

Figure 5

Morphology of chondrocytes under optical microscope (10x). (a) P1, day 6; (b) P1, day 10; (c) P2, day 11. (d1–d4) The results of toluidine blue staining of rabbit articular chondrocytes (P2).