Abstract
Cibacron Blue F3GA was covalently attached onto magnetic poly(vinyl alcohol) (mPVAL) beads (100–150 μm in diameter) for human serum albumin (HSA) adsorption from human plasma. Despite low nonspecific adsorption of HSA on mPVAL beads, Cibacron Blue F3GA attachment significantly increased the HSA adsorption. The maximum HSA adsorption was observed at pH 5.0. Higher HSA adsorption was observed from human plasma. Desorption of HSA from mPVAL beads was achieved by medium containing 1.0 M KSCN at pH 8.0. To test the efficiency of albumin adsorption from human serum, before and after albumin adsorption was demonstrated with sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) analyses. HSA molecules could be reversibly adsorbed and desorbed 10 times with the magnetic beads without noticeable loss in their HSA adsorption capacity.
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