Estimation of the thermal expansion coefficient of erythrocyte membrane surface by shift of curve of erythrocyte distribution by spherical index

Authors

  • O. I. Gordiyenko Institute for Problems of Cryobiology and Cryomedicine of NAS of Ukraine Author

Keywords:

erythrocytes, spherical index, plasma membranes, thermal expansion coefficient

Abstract

Authors proposed a new method for estimation of thermal expansion coefficient of erythrocyte membrane surface, basing on determination of erythrocyte distribution by spherical index at various temperatures. Using the small angle light scattering the erythrocyte osmotic fragility curves were obtained and then transited to curves of cell spherical index distribution by coordinate transformation and differentiation basing on elaborated physical and mathematical model of hypotonic hemolysis in non-permeating substance solution. Coefficient of erythrocyte membrane thermal expansion was determined by the shift of distribution maximum at temperature change. Obtained value of thermal expansion coefficient is in good concordance with known data from the literature, determined by micropipette method.

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Author Biography

  • O. I. Gordiyenko, Institute for Problems of Cryobiology and Cryomedicine of NAS of Ukraine

    23, Pereyaslivska st., 61015 Kharkiv

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Published

2018-06-25

Issue

Vol. 2 No. 13 (2003): Біофізичний вісник

Section

Cell biophysics

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How to Cite

Estimation of the thermal expansion coefficient of erythrocyte membrane surface by shift of curve of erythrocyte distribution by spherical index. (2018). Biophysical Bulletin, 2(13), 78-81. https://periodicals.karazin.ua/biophysvisnyk/article/view/12418

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