Polymerization of modified diaspirin cross-linked hemoglobin (DCLHb) with 1,6-bismaleimic-hexane

Artificial Cells, Nanomedicine, and Biotechnology
Donglai QiXiang Wang

Abstract

Increasing the size of hemoglobin (Hb) by polymerization offers the benefits of reduced renal clearance and increased duration in the vascular circulation. With this goal, diaspirin cross-linked hemoglobin (DCLHb) was modified in order to keep one thiol group on the surface and then polymerized with 1,6-bismaleimic-hexane (1,6-BMH) to increase the molecular weight. The HPLC results indicated that approximate 20% dimers to tetramers of DCLHb desired were achieved after the polymerization. It was also demonstrated that the oxygen-carrying capacity of the products was similar to natural heme. The present study is expected to improve the efficacy of the DCLHb as an oxygen therapeutic agent.

References

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