Petelska Aneta D, Szeremeta Michał, Kotyńska Joanna, Niemcunowicz-Janica Anna
Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland.
Department of Forensic Medicine, Medical University of Bialystok, Waszyngtona St. 13, 15-230 Bialystok, Poland.
Membranes (Basel). 2021 Mar 9;11(3):189. doi: 10.3390/membranes11030189.
We propose herein a theoretical model describing the effect of fatal ethanol poisoning on the equilibria between cell membranes and the surrounding ions. Using this model, we determined the parameters characterizing the interaction between the electrolyte solution's ions and the functional groups on the blood cells' surface. Via the application of mathematical equations, we calculated the total surface concentrations of the acidic and basic groups, and , and their association constants with solution ions, and . Using the determined parameters and mathematical equations' values, we calculated the theoretical surface charge density values. We verified the proposed model by comparing these values with experimental data, which were selected based on measurements of the electrophoretic mobility of erythrocyte and thrombocyte membranes. Compatibility of the experimental and theoretical surface charge density values was observed in the range of pH 2-8, while deviations were observed at higher pH values.
我们在此提出一个理论模型,该模型描述了致命性乙醇中毒对细胞膜与周围离子之间平衡的影响。利用这个模型,我们确定了表征电解质溶液离子与血细胞表面官能团之间相互作用的参数。通过应用数学方程,我们计算了酸性和碱性基团的总表面浓度以及它们与溶液离子的缔合常数。利用所确定的参数和数学方程的值,我们计算了理论表面电荷密度值。我们通过将这些值与基于红细胞和血小板膜电泳迁移率测量所选择的实验数据进行比较,验证了所提出的模型。在pH 2 - 8范围内观察到实验和理论表面电荷密度值的相容性,而在较高pH值下观察到偏差。