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KMID : 1151820130070010085
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Journal of the Korean Society of Radiology
2013 Volume.7 No. 1 p.85 ~ p.91
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Selective transport characteristics of alkali metal ions through a cell membrane model which irradiated by γ-ray
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Ko In-Ho
Yoe Jin-Dong
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Abstract
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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.
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KEYWORD
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γ-ray, Na+ polystyrene-divinylbenzene sulfonated copolymerized membrane, Selective transport characteristics
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