Friedhoff L T
J Theor Biol. 1983 Mar 21;101(2):205-10. doi: 10.1016/0022-5193(83)90334-x.
Cell membranes possess ion channels and pumps which allow them to pass electrical currents. In this paper it is shown that the ion channels and pumps should induce electric fields in the area surrounding the membrane. The magnitude of this field is computed. It is shown that when the channels and pumps are separated by a sufficient distance, then the electric fields which they induce will cause the solution which surrounds the membrane to move. This movement of the fluid should cause motion of the membrane. Thus it is demonstrated that under certain conditions the conductance of ions across cell membranes will give rise to cell membrane motion. It is suggested that this phenomenon may play a role in processes such as chemotaxis, cell division, and pinocytosis.
细胞膜拥有离子通道和泵，这些使它们能够通过电流。本文表明，离子通道和泵会在膜周围区域诱导电场。计算了该电场的大小。结果表明，当通道和泵相隔足够远的距离时，它们诱导的电场会使膜周围的溶液移动。这种流体的移动会导致膜的运动。因此证明，在某些条件下，离子跨细胞膜的传导会引起细胞膜运动。有人提出，这种现象可能在诸如趋化性、细胞分裂和胞饮作用等过程中发挥作用。
