Selective transport characteristics of alkali metal ions through a cell membrane model which irradiated by γ-ray

Abstract

The selective transport characteristics of K + and Na + of cell membrane model which irradiated by 60Co γ -ray was investigated. The cell membrane model used in this experiment was a Na+ type sulfonated copolymerized membrane of styrene and divinylbenezene.The initial flux of the ion was increased with increase of both H + ion concentration. In this experiment range(pH 0.5-3, temperature 15-65℃), first, the selectivity of K + and the ratio K+/Na+ of membrane which was not irradiated was about 1.06 -1.13 and second, that of K+ and the ratio K + /Na + of membrane which was irradiated was near about 0. And the driving force of pH of irradiated membrane was significantly increased about 4-5 times than membrane which was not irradiated. As selective transport of K+ and Na+ of cell membrane model were abnormal, cell damages were appeared at cell.