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Polymerization of diaspirin cross-linked hemoglobin (DCLHb) with water-soluble, nonimmunogenic polyamide cross-linking agents.

Diaspirin cross-linked hemoglobin (DCLHb), a human hemoglobin that is intramolecularly cross-linked between the alpha chains (lysine 99(alpha)(1)-lysine 99(alpha)(2)), was polymerized with a number of water-soluble, nonimmunogenic polyamide cross-linking agents. The degree of polymerization and the oxygen-carrying capacity depended upon the polyamide reagent, the starting concentration of DCLHb, the molar ratio of the polyamide reagent to DCLHb used, the reaction pH, and whether oxy- or deoxy-DCLHb was used in the polymerization reaction.