Title:Adhesion of Osteoblasts to a Vertically Aligned TiO2 Nanotube Surface
Volume: 13
Issue: 2
Author(s): Ekaterina Gongadze, Doron Kabaso, Sebastian Bauer, Jung Park, Patrik Schmuki and Ales Iglic
Affiliation:
Keywords:
TiO2 nanotube surfaces, adhesion, dynamic simulations, nanostructured surface topography, osteoblast adhesion
Abstract: The adhesion of cells to vertically aligned TiO2 nanotubes is reviewed. The attraction between a negatively
charged nanotube surface and a negatively charged osteoblast is facilitated by charged protein-mediators like proteins
with a quadrupolar internal charge distribution, fibronectin and vitronectin. It is shown that adhesion and spreading of
osteoblasts on vertically aligned TiO2 nanotube surfaces depend on the diameter of the nanotubes. Apparently, a small
diameter nanotube surface has on average more sharp convex edges per unit area than a large one, leading to stronger
binding affinity on its surface.