Ion Beam Deposited Carbon Coatings for Biocompatible Materials.

摘要

Ion beam deposited (IBD) carbon coatings have been studied with regard to physico-chemical properties and blood compatibility. Measurements relative to surface charge,chemical surface groups,crystallinity,and surface smoothness have been made. The carbon coatings are smooth,amorphous,and present an oxidized surface that is rich in hydrocarbons. A low gas permeability,high critical surface tension and excellent adhesion to various substrates have been observed. Results of vena cava,renal embolus,and ex-vivo tests indicate a high degree of thromboresistance for this material.