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首页> 外文期刊>The European physical journal, E. Soft matter >Binding of trivalent metal ions (Al3+, In3+, La3+) with phosphatidylcholine liposomal membranes investigated by microelectrophoresis
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Binding of trivalent metal ions (Al3+, In3+, La3+) with phosphatidylcholine liposomal membranes investigated by microelectrophoresis

机译:通过微电泳研究的三价金属离子(Al3 +,In3 +,La3 +)的三价金属离子(Al3 +,In3 +,La3 +)的结合

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摘要

Interactions between trivalent metal ions (Al3+, In3+, La3+) and phosphatidylcholine (PC) liposomes are studied by microelectrophoresis. The dependence of the PC membrane surface charge density and zeta potential on pH (pH range from 2 to 10) of the aqueous metal chloride solutions is determined. The obtained results indicate the adsorption of Al3+, In3+ and La3+ ions on phosphatidylcholine model membranes, leading to changes in the electrical properties of the membranes. The theoretical considerations on equilibria occurring between phosphatidylcholine liposomal membrane and trivalent metal ions are presented. A mathematical model describing the interactions in a quantitative way is proposed.
机译:通过微电泳研究了三价金属离子(Al3 +,In3 +,La3 +)和磷脂酰胆碱(PC)脂质体之间的相互作用。 确定PC膜表面电荷密度和ζ电位对金属氯化物溶液水性氯化物溶液的pH(pH范围)上的依赖性。 所得结果表明Al3 +,In3 +和La3 +离子对磷脂酰胆碱模型膜的吸附,导致膜的电性能变化。 介绍了磷脂酰胆碱脂质体膜和三价金属离子之间发生的均衡的理论考虑。 提出了一种描述以定量方式相互作用的数学模型。

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