Enhanced cell growth on nanotextured GaN surface treated by UV illumination and fibronectin adsorption

- Nanotextured GaN surface has been successfully fabricated by a facile chemical vapor deposition method.
- UV light irradiation made the nanotextured GaN surface be superhydrophilic.
- UV illumination greatly increased fibronectin (FN) adsorption, and then enhanced cell growth and adhesion significantly on nanotextured GaN surface.
- We provide a novel approach to increase FN adsorption and cell growth at the nano/biointerface.