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首页> 外文期刊>Chemical papers >A thiamonomethinecyanine probe for detection of Pb~(2+)based on transformation from dimer to monomer by aptamer
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A thiamonomethinecyanine probe for detection of Pb~(2+)based on transformation from dimer to monomer by aptamer

机译：thiamonomethinecyanine探测器进行检测Pb ~(2 +)基于转换从二聚体单体的适配子

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摘要

A simple method based on a thiamonomethinecyanine dye (dye2) and duplex DNA system was constructed to detect Pb~(2+) by UV–Vis spectra. The absorption spectra of dye2 show dimers and monomers peak and the monomer–dimer equilibrium could be regulated with environmental change. Duplex DNA as a template was used to regulate distinct aggregates of cyanine dye in the presence of Pb~(2+). This system shows a specific absorption signal for Pb~(2+) detection.
机译：一个简单的方法基于thiamonomethinecyanine染料(dye2)和双螺旋DNA系统构建检测Pb ~(2 +),紫外可见光谱。dye2显示二聚体和吸收光谱单体峰和monomer-dimer平衡可能是监管环境变化。双螺旋DNA作为模板被用来调节不同的花青染料的聚集Pb ~(2 +)的存在。吸收信号Pb ~(2 +)检测。

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