Abstract
In general the chemical composition of surfaces of biomaterials has to be tailored for a specific application. Using different types of glow discharge techniques it is possible to achieve a well defined chemical composition of the surface. Using the plasma immobilization technique it is possible to selectively introduce funtional groups or poly(ethylene oxide) chains on the surface. By using a tetrafluoromethane (CF4) plasma fluorinized surfaces can be obtained. Poly(tetrafluoro ethylene)-like surfaces can be obtained by treating polymer surfaces covered with glass with a CF4 plasma. Furthermore the fluorine introduced by a CF4 plasma treatment can be etched off by an argon plasma treatment in a controlled way. This yields polymer surfaces with a wide range in surface wettability. These surfaces have been evaluated with respect to the adhesion of granulocytes and lymphocytes.
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