CHARACTERISTICS OF HB-VESICLES AND ENCAPSULATION PROCEDURE
Citation
S. Takeoka et al., CHARACTERISTICS OF HB-VESICLES AND ENCAPSULATION PROCEDURE, Artificial cells, blood substitutes, and immobilization biotechnology, 22(3), 1994, pp. 861-866
Categorie Soggetti
Engineering, Biomedical","Materials Science, Biomaterials
SICI code
1073-1199(1994)22:3<861:COHAEP>2.0.ZU;2-Y
Abstract
The performance of Hb-vesicles depends on the weight ratio of Hb to li
pid ([Hb]/[Lipid]). This value is improved by lowering the number of b
ilayer membrane of the vesicle and raising the concentration of Hb in
the interior of the vesicle. Maximum [Hb]/[Lipid] ratio was obtained a
t ca. pH 7, that would relate to the isoelectric point (pl) of Hb at 2
5 degrees C. On the other hand, the [Hb]/[Lipid] ratio decreased with
ionic strength and increased with lowering temperature. The Hb-vesicle
s encapsulating 40 g/dl Hb with only one bilayer membrane were isolate
d by using the difference in the density of the vesicles.