A label-free electrochemiluminescence aptasensor for thrombin detection based on host-guest recognition between tris(bipyridine)ruthenium(II)-β-cyclodextrin and aptamer.

本文报道了一种基于三(联吡啶)钌(II)-β-环糊精（tris(bpyRu)-β-CD）与抗凝血酶适配体（aptamer）之间主客体识别的无标记电化学发光（ECL）适配体传感器，用于超灵敏检测凝血酶。首先，氨基末端适配体（NH2-aptamer）通过EDC/NHS偶联反应固定在活化的玻璃碳电极（GCE）表面。随后，利用tris(bp...