Affiliations: Department of Polymer Science and Technology, Chonbuk National University, 614‐14, DukjinDong 1Ga, Dukjin, Chonju, 561‐756, Korea | Biomaterials Laboratory, Korea Research Institutes of Chemical Technology, P.O. Box 107, Yusung, Taejon, 305‐606, Korea
Note: [] To whom correspondence should be addressed.
Abstract: Surface treatment as gold sputter‐deposited treatment onto various polymeric surfaces has been investigated to improve the cell‐, tissue‐ and blood‐compatibility. Surface treated samples were characterized by measurement of contact angle goniometer and electron spectroscopy for chemical analysis (ESCA). The contact angles on the gold‐coated polymeric surfaces decreased from 95\!\sim\! 65^{\circ} to around 50^\circ, i.e., increased hydrophilicity due to incorporation of gold thin layer. From the results of ESCA analysis of the modified polymeric surfaces, surface modification by the gold‐sputter method was successfully performed. Morphology of the adhered platelets on the gold‐coated polymeric surfaces showed lesser activating than control, and the number of adhered platelets surface modified samples decreased with decreasing water contact angle. Fibroblast cell adhesion and growth on the gold‐coated polymeric surfaces were more active than those of control. It seems that surface wettability and surface chemistry of gold play important roles for platelet adhesion and cell adhesion, spreading and growth.
