Toward a Surface Science Model for Biology: Glycine Adsorption on Nanohydroxyapatite with Well-Defined Surfaces

The adsorption by chemical vapor deposition of glycine to nanohydroxyapatite, well characterized by electron microscopy, has been studied by infrared spectroscopy and density functional theory based on the B3LYP functional. The comparison of the IR features of the adsorbed glycine with that resulting from the modeling has allowed elucidating the structures assumed by glycine at the crystalline faces of nanohydroxyapatite. These results will improve the understanding of the biomolecules/biomaterials interactions.