Related Experiment Video
Updated: Jul 26, 2026

Antigens Protected Functional Red Blood Cells By The Membrane Grafting Of Compact Hyperbranched Polyglycerols
Published on: January 2, 2013
Freezing and deglycerolizing sickle-trait red blood cells
Abstract:
Sickle-trait red blood cells respond to freezing and thawing like normal cells, but during deglycerolization by centrifugal methods, they pack and hemolyze. This appears to be the result of changes in surface characteristics with suspension in hyperosmotic saline and even modest increases in osmolality result in packing with centrifugation. Modifications to permit deglycerolization of sickle-trait cells have been designed for use with both the Haemonetics and the IBM cell washing systems. Sickle-trait cells do not agglomerate satisfactorily but we were unable to devise a modification of this deglycerolizing system that would accommodate sickle-trait cells.
Related Concept Videos
Multiple Allele Traits
Freezing Point Depression and Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
Glucose Transporters
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Disorders of Erythrocytes
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...

