In Vitro Behavior of Human Adipose Tissue-Derived Stem Cells on Poly(ε-caprolactone) Film for Bone Tissue Engineering Applications

Figure 7

Representative images of PA42-C4 grown on PCL film at different experimental points (2–16 days) and stained with Acridine Orange. The nuclei and mitochondria appear green, while if cells are damaged or suffering, lysosomes should appear red-orange fluorescence colored. Objective 20x.