Research / 2020 / Article / Fig 1

Research Article

Hierarchical Capillary Coating to Biofunctionlize Drug-Eluting Stent for Improving Endothelium Regeneration

Figure 1

Preparation of the hierarchical coating. (a) SEM micrographs of the coating with different top layer spray time. (b) The thickness of the top layer as a function of spray time. Contact angle (c) and X-ray photoelectron spectrums (d) of the coating with different extent of heparinization based on UV irradiation.