Surface Energy and Work of Adhesion of Titanium oxide films
The interaction between metal surface and cell/tissue is important for the biocomptibilty of metallic implants,and surface modification has been studied extensively to alter its surface characteristics,and improve biocompatibility. Titanium oxide (TiOx) films were deposited by electron-beam evaporation system using TiO2 as a source material. TiOx films were etched subsequently by different plasma to obtain different surface morphology. The composition of TiOx films were changed from nonstoichiometric to stoichiometric due to etching process,and the surface roughness of TiOx films was increased. TiOx films were further modified by self-assembled monolayer (SAM) of silanes. TiOx films became hydrophobicity by the SAM modification process and highly hydrophilic by ultraviolet (UV) irradiation. Surface modification of TiOx films (like plasma etching,SAM and UV irradiation) has proven to be indispensable for improved hemocompatibility,asassessed by work of adhesion calculations and x-ray photoemission spectroscopy.
Titanium oxide film E-beam evaporation Surface energy Work of Adhesion Surface chemistry irradiation
ZHAO Ji-Kui LIN Zeng BA De-Chun HAN Jing
School of Mechanical Engineering & Automation,Northeastern University,Shenyang 110004,China Shenyang Pharmaceutical University,Shenyang,110016,China
国际会议
沈阳
英文
218-222
2011-05-22（万方平台首次上网日期，不代表论文的发表时间）