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Abstract
The adsorption behaviour of rat lymphocytes on poly(2-hydroxyethyl methacrylate)- graft-polyamine (HA) copolymers was evaluated using a newly developed Chromatographic method. The quantity of lymphocyte adsorption can be varied by regulating the polyamine content in the HA copolymer. A remarkable depression in lymphocyte adsorption was observed on the surface of HA copolymer, consisting of 7 wt% of polyamine graft and 93 wt% of poly(2-hydroxyethyl methacrylate) (pHEMA) backbone. Further introduction of a polyamine graft on pHEMA resulted in the increase of lymphocyte retention on the copolymer surfaces. Lymphocytes adsorbed on HA copolymer surface retained their original round shape. Detailed analysis of the chromatogram showed that interaction of lymphocytes with HA copolymer was very much weaker than that with homopolymer of pHEMA or polyamine.
Published Version
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