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不同pH值对Au/CaM膜结合Ca2+的电化学行为研究
The Investigation of the Electrochemistry Behaviors at the Gold Electrode Modified with Calmodulin Self-assembled Monolayer Combination with Metal Ion
【摘要】 采用交流阻抗的方法,在包含1 mmol/L Fe(CN)63-/4-的0.15 mol/L的NaCl溶液中,研究了Au/CaM膜在不同的酸碱环境下结合Ca2+的电化学行为.结果表明:在pH为6.5的环境下Au/CaM膜结合Ca2+的能力要比在pH为4.5环境下的强.
【Abstract】 The electrochemical behaviors of Calmodulin(CaM) self-assembled on Au substrate combine with Ca2+ under different pH value in the 0.15?mol/L NaCl solution containing 1?mmol/L Fe(CN)63-/4- have been investigated and compared with electrochemical impedance spectroscopy techniques systematically.The results demonstrated that the ability of CaM membrane combine with Ca2+ in pH=6.5 is stronger than in pH=4.5.
【关键词】 交流阻抗;
钙调素;
自组装膜;
表观电化学反应电阻;
【Key words】 electrochemical impedance spectroscopy; calmodulin; self-assembled monolayer; charge transfer resistance;
【Key words】 electrochemical impedance spectroscopy; calmodulin; self-assembled monolayer; charge transfer resistance;
【基金】 国家自然科学基金资助项目(29973026)
- 【文献出处】 河北师范大学学报 , 编辑部邮箱 ,2006年04期
- 【分类号】O646
- 【被引频次】1
- 【下载频次】50