Research Article

Hydroxyapatite-Based Colloidal Gels Facilitate the Proliferation and Migration of Chondrocytes and the Adhesion of Umbilical Cord Mesenchymal Stem Cells

Figure 6

DRAQ staining of chondrocytes demonstrating healthy nuclei. Some cells with bright intensity are those cells expected to be in the S phase of the cell cycle as evidenced by intense staining of the oval nuclei.