Microstructure and hemocompatibility of neodymium doped zinc oxide thin films

摘要

By the radio frequency magnetron sputtering, both un-doped and neodymium (Nd) doped ZnO thin films were grown on Si (100) substrates. The microstructure of the films has preferred c-axis growth orientation confirmed by the X-ray diffraction spectra. The crystallite size of ZnO crystallite decreases with the increasing of Nd concentration. We show that the hemocompatibility can be improved by a suitable Nd doping in the ZnO thin films. It is verified by both calculations on surface energy and interfacial tension of the sample, and experiments on the wettability, the proteins adsorption, and the platelets adhesion.