抄録
This paper reviewed method for estimation of the membrane potential by use of a selective electrode for a liphophilic cation which is considered to be freely permeable to cell membranes. This method enables us to estimate continuously and easily the membrane potential of small cells which are too small to use a micro-electrode. We applied this method to several small cells and organelles such as mitochondria, bacteria, polymorphonuclea leukocyte, and introduced some examples. The advantage and disadvantagee of this method was mentioned.
