Figure 4.

Micrographs of MC3T3-E1 osteoblasts showing: A) pre-cell separation with non-adherent cells (mag. ×20), B) adherent cells with internalized nanowires (mag. ×20), C) cells without nanowires (control, mag. ×40). All the optical micrographs have associated schematic diagrams to highlight the main features of interest for each image.