Fig. 6
From: Designing of PLA scaffolds for bone tissue replacement fabricated by ordinary commercial 3D printer
Scanning electron microscopy of ST1 (a, c, e) and ST2 (b, d, f) without and with cells. The surfaces of both scaffolds were smooth with irregular microparticles on the surface. Magnification × 250 (a, b), and × 4000 (c, d). Scanning electron microscopy of ST1 (e) and ST2 (f) seeded with osteosarcoma cells MG-63 after 2 days. MG-63 cells were spread on both scaffolds resembling oval to spindle-shaped morphology typical for osteosarcoma cells and forming small membrane protrusions. Magnification × 2000