OSMOTIC VOLUME CHANGES INDUCED BY A PERMEABLE SOLUTE
OSMOTIC VOLUME CHANGES INDUCED BY A PERMEABLE SOLUTE
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DOI：
10.1016/0022-5193(67)90173-7
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发表时间：
1967-01-01
影响因子：
2
通讯作者：
WILSON, TA
中科院分区：
文献类型：
--
作者：
JOHNSON, JA;WILSON, TA
微分方程描述的体积变化作为时间的函数的系统，如一个细胞，这是由于渗透的细胞膜或系统的边界的溶质经历磁诱导的体积变化。用于描述膜性能的参数是Staverman反射系数、水渗透系数和溶质渗透系数。假设沐浴在膜屏障两侧的流体相对于水和溶质浓度在空间上是均匀的。一阶微扰技术用于求解方程，并获得细胞体积作为时间的函数。该解决方案与文献中的数据进行比较，并获得这些情况下的细胞膜参数的值。
A differential equation is developed describing volume changes as a function of time for a system such as a cell which is undergoing osmotically induced volume changes due to a solute which penetrates the cell membrane or boundary of the system. The parameters used to describe the membrane properties are the Staverman reflection coefficient, the water permeability coefficient and the solute permeability coefficient. The fluids bathing both sides of the membrane barrier are assumed to be spatially homogeneous with respect to water and solute concentrations. A 1st-order perturbation technique is used to solve the equations and obtain cell volume as a function of time. This solution is compared with data available in the literature and values for the cell membrane parameters are obtained for these cases.