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Voltammetric detection of the DNA interaction with copper complex compounds and damage to DNA

机译:伏安法检测DNA与铜配合物的相互作用以及对DNA的破坏

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Binding reactions of copper(II) complexes of 1,10-phenanthroline (phen) and tetraaza macrocyclic ligand TAAB with calf thymus DNA have been investigated voltammetrically at bare and DNA modified glassy carbon electrodes. The values of binding constant, binding site size, ratio of binding constants for the reduced and oxidized copper complex forms as well as information on the electrostatic and intercalative binding modes were obtained by solution and surface-based methods. The Cu(phen)S' complex mediates the dsDNA cleavage to a higher degree than Cu(TAAB)(2+) as indicated by the redox marker Co(phen)(3)(3+) and the anodic signal of the DNA base. A procedure for the damage to DNA detection using dsDNA/GCE biosensor is proposed. [References: 20]
机译:1,10-菲咯啉(phen)和四氮杂大环配体TAAB的铜(II)配合物与小牛胸腺DNA的结合反应已在裸露的和DNA修饰的玻璃碳电极上进行了伏安法研究。通过溶液和基于表面的方法获得了结合常数,结合位点大小,还原和氧化的铜配合物形式的结合常数的比率以及有关静电和嵌入结合模式的信息。如氧化还原标记Co(phen)(3)(3+)和DNA碱基的阳极信号所示,Cu(phen)S'复合物介导的dsDNA裂解程度高于Cu(TAAB)(2+)。 。提出了使用dsDNA / GCE生物传感器对DNA进行检测的方法。 [参考:20]

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