Research Article

Nanopolymers Delivery of the Bone Morphogenetic Protein-4 Plasmid to Mesenchymal Stem Cells Promotes Articular Cartilage Repair In Vitro and In Vivo

Figure 5

Microscopic observations (HE) of the PLLGA scaffold being implanted at week 1. The fibers of PLLGA scaffold could be identified. The cells existed in the pores between the fibers of the scaffold. The bar was 200 μm.
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