Studies of adsorbents for hemoperfusion in artificial liver support. I. Preparation and in vitro studies of cross-linked agarose beads entrapped activated charcoal (CAAC).
A new method for the preparation of the cross-linked agarose beads entrapped activated charcoal (CAAC) is reported. Since the agarose-encapsulated adsorbents reported elsewhere cannot stand high temperature for sterilization, the CAAC has the advantage of thermal stability to withstand autoclave at 121 degrees C. for 1/2 hour without breaking up or melting. A further advantage of CAAC is that the adsorbent has a much better consistency with good mechanical strength and elasticity, so that it can be formed into beads of a diameter less than 1 mm. This will not only give a better adsorption capacity than larger beads, but can also assure a better blood flow than soft beads which usually interfere in hemoperfusion due to compacting and sludging. Preliminary investigations indicate that the CAAC is relatively hemocompatible.
D000042:Absorption; D002606:Charcoal / Q000378:metabolism*; D006464:Hemoperfusion / Q000295:instrumentation*; D008863:Microspheres; D011134:Polysaccharides / Q000378:metabolism*; D012685:Sepharose / Q000378:metabolism*
D011134:Polysaccharides; D002606:Charcoal; D012685:Sepharose