The role of electrostatic interactions in the Streptococcus thermophilus adhesion on human erythrocytes in media with different 1:1 electrolyte concentration
Keywords:
adhesion, DLVO theory, erythrocytes, Streptococcus thermophilus, electrostatic interactions, Debye radius, surface potential
Abstract
The process of bacterial adhesion is usually discussed in terms of the two-stage sorption model. According to the model, at the first stage the bacteria fastly attaches to the surface by weak physical interactions, while at the second stage irreversible molecular and cellular adhesion process takes place. An important factor, influencing the adhesion processes, is physical-chemical characteristics of the medium, in particular, the presence of monovalent cations therein. The aim of this work is to assess the role of electrostatic component of the intercellular interactions at the first reversible stage of adhesion. Comparison of experimental data of adhesion of lactobacilli S. thermophilus on human erythrocytes and theoretical definition of the Debye radius and the erythrocytes surface potential in the experimental solutions showed that with decreasing ionic strength of the solution the change in the adhesion index in our experiments is fully in line with the theory DLVO predictions.Downloads
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Cited
How to Cite
Гордієнко, О. І., Баранник, М. О., & Гордієнко, Є. О. (1). The role of electrostatic interactions in the Streptococcus thermophilus adhesion on human erythrocytes in media with different 1:1 electrolyte concentration. Biophysical Bulletin, 1(33), 30-37. Retrieved from https://periodicals.karazin.ua/biophysvisnyk/article/view/4332
Section
Cell biophysics
Copyright (c) 2015 О. І. Гордієнко, М. О. Баранник, Є. О. Гордієнко
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