仿生膜内固定的多巴胺对抗坏血酸的氧化作用

Oxidation of Ascorbic Acid by Dopamine Incorporated in Mimetic Biomembrane

在玻碳电极表面上成功地构筑了一种仿生膜———磷脂浇铸膜。将多巴胺固定在膜内 ,研究了其对 2 .0× 1 0 - 3mol L的抗坏血酸的催化氧化作用 ,抗坏血酸的氧化过电位被降低了大约 2 60mV。

A kind of mimetic biomembrane-cast lipid film was made onto a glassy carbon electrode. Dopamine can be incorporated into the film. The oxidation of 2.0 x 10(-3) mol/L ascorbic acid with dopamine in the film was investigated. The oxidation overpotential of ascorbic acid was reduced by about 260 mV.