Abstract
Activated charcoal with various coating materials were screened and tested as adsorbents in hemoperfusion. Among them silicon rubber polyurethane, crosslinked agrose, polyvinyl acetate, polyhydroxy ethyl methacrylate showed good blood compatible properties. Various types of resins and carbonized resins with different functional groups, and structures were tested for the adsorption of small molecules i.e. creatinine, barbiturates, middle molecules i.e. VitB12, inulin, cytochrome C and large molecules i.e. unconjugated bilirubin. High adsorption capacities were obtained and uncoated carbonized resins showed satisfactory blood compatible properties. NK-107 a macroporous, non-coated resin is now being manufactured and successfully used clinically on patients for acute detoxification of hypnotic drugs. Polysaccharide dialdehyde and polystyrene derivatives etc. were used for the removal of urea, ammonia, potassium and phosphorus. DNA immune adsorbents were prepared for systemic lupus erythematosus therapy.
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