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Visualization of oriented hemoglobin S in individual erythrocytes by differential extinction of polarized light.

Authors :
Mickols W
Maestre MF
Tinoco I Jr
Embury SH
Source :
Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 1985 Oct; Vol. 82 (19), pp. 6527-31.
Publication Year :
1985

Abstract

The distribution of oriented, polymerized sickle cell hemoglobin (hemoglobin S) in erythrocytes is visualized with a microscope that produces an image proportional to linear dichroism. Monochromatic light alternately polarized along two perpendicular directions is incident on the sample. The image is focused on a diode array, and the digital output is used to form two images. One is the usual image proportional to the average transmitted light intensity of the two incident polarizations of light; the other is a linear differential image proportional to the linear dichroism of the sample. This quantitative image can specifically reveal oriented hemoglobin molecules with a sensitivity of about 4000 oriented molecules per picture element of the image.

Details

Language :
English
ISSN :
0027-8424
Volume :
82
Issue :
19
Database :
MEDLINE
Journal :
Proceedings of the National Academy of Sciences of the United States of America
Publication Type :
Academic Journal
Accession number :
3863110
Full Text :
https://doi.org/10.1073/pnas.82.19.6527