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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: Biomaterials. 2017 May 12;137:37–48. doi: 10.1016/j.biomaterials.2017.05.021

Fig. 8. Immunohistochemical staining for bone-specific proteins.

Fig. 8

Osteocalcin (OCN) and collagen type I (COL I) in sections from the multilayer and PCL groups were visualized at week 6 and week 12. The subchondral bone region was enriched with OCN and COL I, and the staining for both proteins was remarkably stronger in the multilayer group than that in the PCL group.