Figure 3From: Analysis of human alveolar osteoblast behavior on a nano-hydroxyapatite substrate: an in vitro study Scanning electron microscopy (SEM) and atomic force microscopy (AFM). (A) Cells grown on POL appeared spherical with retracted fibers. (B) Cells grown on POL/nHA appeared elongated and with many filopodia. (C) Cells grown on POL appeared spherical with retracted fibers. (D) Cells grown on POL/nHA appeared elongated and with many filopodia.Back to article page