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The Electrochemiluminescence Analysis

已有 4608 次阅读 2017-4-5 11:00 |系统分类:科研笔记

Electrochemiluminescence (ECL), also called electrogenerated chemiluminescence, refers to a light emission process in which species generated at the electrode surface undergo exergonic electron transfer reaction to form excited states that emit light. As ECL is emitted through bimolecular recombination of electrogenerated radicals, its mechanism can be divided into two categories according to the source of radicals, namely, annihilation mechanism and coreactant mechanism. As for the former, radical species are generated from a single emitter, while the latter involves a bimolecular set of electrochemical reactions between the emitter and a suitable coreactant. The emitter plays a key role in the transformation from electrical energy into radiative energy. Three types of luminophores, including ruthenium(II) complexes, luminol, and quantum dots (QDs), have been widely utilized in vast majority of ECL studies.



Figure 1. Scheme showing the sensor








Figure 2. Scheme showing the design of the immunosensor



Figure 3. Scheme of the paper BPE-ECL molecular switch system




References: Recent Advances in Electrochemiluminescence Analysis

Anal. Chem., 2017, 89, 358–371, DOI: 10.1021/acs.analchem.6b04675







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