离子跨膜迁移的几率波理论  

A Probability Wave Theory on the Ion Movement Across Cell Membrane

作　　者：张辉[1] 许家栋[1] 牛中奇[2] 

机构地区：[1]西北工业大学电子信息学院 [2]西安电子科技大学电子工程学院,西安710071

出　　处：《生物医学工程学杂志》2007年第2期257-261,共5页Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目(30470429);陕西省教育厅自然基金项目(05JK313);咸阳师范学院重点资助项目(04xsyk106)

摘　　要：基于细胞结构、已有的机理分析理论和实验事实,我们提出解释电磁场生物学窗效应的几率波理论。该理论将细胞膜通道看成是周期性分布的势垒,给出了离子跨膜迁移的物理图像;修正了膜通道内离子能量相对于外加电磁场频率的关系;应用波函数的概念,给出了低强度电磁场作用下,离子跨膜迁移的几率。数值仿真结果分析了影响离子跨膜迁移的物理因素。结果显示该理论可解释电磁场生物学窗效应的现象。The ionic quantity across the channel of the cell membrane decides the cell in a certain life state. The theory analysis that existed on the bio-effects of the electro-magnetic field （EMF） does not unveil the relationship between the EMF exerted on the cell and the ionic quantity across the cell membrane. Based on the cell construction, the existed theory analysis and the experimental results, an ionic probability wave theory is proposed in this paper to explain the biological window-effects of the electromagnetic wave. The theory regards the membrane channel as the periodic potential barrier and gives the physical view of the ion movement across cellmembrane. The theory revises the relationship between ion＇s energy in cell channel and the frequency exerted EMF. After the application of the concept of the wave function, the ionic probability across the cell membrane is given by the method of the quantum mechanics. The numerical results analyze the physical factors that influences the ion＇s movement across the cell membrane. These results show that the theory can explain the phenomenon of the biological wlndow-effects.

关 键 词：几率 窗效应 波理论 

分 类 号：R318[医药卫生—生物医学工程]