PROCESS FOR HYDROPHILIZING SURFACES OF FLUIDIC COMPONENTS AND SYSTEMS

摘要

The invention describes processes for producing a film of a hydrophilic polymer on the inner surfaces of a fluidic component in which firstly the inner surface s of the fluidic component are subjected to a physicochemical treatment, in particula r a plasma treatment, subsequently the inner surfaces are brought into contact with a solution of the hydrophilic polymer, afterwards the polymer solution is replaced by a gaseous medium in such a manner that firstly the inner surfaces remain wetted with part of the polymer solution and finally a film of the hydrophilic polymer remains on the inner surfaces of the fluidic component by removing the solvent. The hydrophilic polymer that is used in this case has a surface wettability for aqueous solutions which is higher than the surface wettability of the inner surfaces of the fluidic component itself. In addition the invention describes fluidic components and systems as well as analytical systems on the inner surfaces of which a film of a hydrophilic polymer is at least partly present.