EFFECT OF HEAVY-METAL UPTAKE ON THE ELECTROKINETIC PROPERTIES OF SACCHAROMYCES-CEREVISIAE

被引:33
作者
CHEN, P [1 ]
TING, YP [1 ]
机构
[1] NATL UNIV SINGAPORE,DEPT CHEM ENGN,SINGAPORE 0511,SINGAPORE
关键词
D O I
10.1007/BF00134205
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The effect of heavy metal ions (Cu2+, Ni2+) On the electrokinetic properties of S. cerevisiae was investigated by microelectrophoresis. The uptake of metal ions is associated with a change in surface charge on the cell surface. Increasing pH results in the cell surface being more negatively charged. Also, the change in the electrophoretic mobility in the presence of multi-ions is not simply due to the change in the metal concentration of the solutions, but is also dependent on the metal species involved.
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页码:107 / 112
页数:6
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