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Published on: November 19, 2009
THE ELECTRICAL CHARGE OF MAMMALIAN RED BLOOD CELLS
1The Biological Laboratory, Cold Spring Harbor, Long Island.
The Journal of General Physiology
|October 30, 2009
Summary
Mammalian red blood cells possess a net surface charge of 4-15 million electrons per cell. This charge density remains constant despite changes in cell surface area, particularly in anemias.
Area of Science:
- Biophysics
- Cell Biology
- Hematology
Background:
- Mammalian red blood cells exhibit unique surface properties.
- Understanding red blood cell surface charge is crucial for hematological studies.
Purpose of the Study:
- To calculate the net surface charge and charge density of mammalian red blood cells.
- To investigate the relationship between surface area, charge, and zoological classification.
- To explore charge regulation mechanisms in anemias.
Main Methods:
- Utilized Gouy and von Smoluchowski theories.
- Analyzed data on surface area and electrical mobilities of red blood cells.
- Conducted calculations in M/15 phosphate buffer at pH 7.4.
Main Results:
- Determined net surface charge per cell ranges from 4 to 15 million electrons.
- Observed no clear correlation between surface charge and zoological classification.
- Identified a potential mechanism for maintaining constant surface charge density.
Conclusions:
- Mammalian red blood cells have a significant net surface charge.
- Surface charge density appears to be regulated, especially during changes in surface area associated with anemias.
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