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首页> 外文期刊>Electroanalysis >Introduction of Ketamine as a G-Quadruplex-Binding Ligand Using Platinum Nanoparticle Modified Carbon Paste Electrode
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Introduction of Ketamine as a G-Quadruplex-Binding Ligand Using Platinum Nanoparticle Modified Carbon Paste Electrode

机译:用铂纳米粒子修饰的碳糊电极引入氯胺酮作为G-四链体结合配体

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摘要

We designed an electrochemical platform by modifying a carbon paste electrode (CPE) with platinum nanoparticles to study the interaction between ketamine and the G-quadruplex structure of human telomeric DNA (G4HTD). The drug ketamine (Kt) was used as the model ligand and its ability for stabilizing the G-quadruplex structure was examined. The modified CPE (NPtCPE) was characterized by differential pulse voltammetry (DPV) and atomic force microscopy (AFM). The interaction of Kt with G4HTD was studied by DPV and the DPV current decreased with increasing Kt concentration. The results from UV-vis and circular dichroism (CD) spectroscopy showed a prominent intercalation mode between G4HTD and Kt.
机译:我们通过用铂纳米颗粒修饰碳糊电极(CPE)设计了一个电化学平台,以研究氯胺酮与人类端粒DNA(G4HTD)的G-四链体结构之间的相互作用。将药物氯胺酮(Kt)用作模型配体,并研究了其稳定G-四链体结构的能力。通过差示脉冲伏安法(DPV)和原子力显微镜(AFM)对改性CPE(NPtCPE)进行了表征。通过DPV研究了Kt与G4HTD的相互作用,并且DPV电流随着Kt浓度的增加而降低。紫外可见光谱和圆二色性(CD)光谱的结果表明,G4HTD和Kt之间存在明显的嵌入模式。

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