Ślęzak Andrzej, Grzegorczyn Sławomir M
Department of Health Sciences and Physiotherapy, Collegium Medicum, Jan Dlugosz University, 13/15 Armia Krajowa Al., 42-200 Częstochowa, Poland.
Department of Biophysics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 H. Jordan Str., 41-808 Zabrze, Poland.
Membranes (Basel). 2025 Jan 20;15(1):36. doi: 10.3390/membranes15010036.
One of the most important formalisms used to describe membrane transport is Onsager-Peusner thermodynamics (TOP). Within the TOP framework, a procedure has been developed for the transformation of the Kedem-Katchalsky (K-K) equations for the transport of binary electrolytic solutions across a membrane into the Kedem-Katchalsky-Peusner (K-K-P) equations. The membrane system with an Ultra Flo 145 Dialyser membrane used for hemodialysis and aqueous NaCl solutions was used as experimental setup. The H version of K-K-P formalism for binary electrolyte solutions was used to evaluate theoretical coefficients characterizing fluxes of energies and efficiencies for membrane transport processes. The coupling coefficients of membrane processes and the dissipative energy flux were calculated on the basis of the Peusner coefficients obtained from transformation of K-K coefficients. The knowledge of dissipative energy flux, which is a function of thermodynamic forces, allows for the determination of the energy conversions during transport processes in a membrane system. In addition, a frictional interpretation of the obtained coefficients is presented.
用于描述膜运输的最重要形式体系之一是昂萨格-佩乌斯纳热力学（TOP）。在TOP框架内，已开发出一种程序，用于将描述二元电解质溶液跨膜运输的凯德姆-卡查尔斯基（K-K）方程转换为凯德姆-卡查尔斯基-佩乌斯纳（K-K-P）方程。使用用于血液透析的Ultra Flo 145透析膜和NaCl水溶液的膜系统作为实验装置。二元电解质溶液的K-K-P形式体系的H版本用于评估表征膜运输过程中能量通量和效率的理论系数。基于从K-K系数转换获得的佩乌斯纳系数，计算了膜过程的耦合系数和耗散能量通量。耗散能量通量是热力学力的函数，了解该通量有助于确定膜系统中运输过程中的能量转换。此外，还对所得系数进行了摩擦学解释。
