Electrochemical luminescence

Kaaret, T. W., and Bruice, T. C. (1990). Electrochemical luminescence with N(5)-ethyl-4a-hydroxy-3-methyl-4a,5-dihydrolumiflavin. The mechanism of bacterial luciferase. Photochem. Photobiol. 51 629-633. 

Upconverting Phosphor Technology (SRI Inti., OraSure) Electrochemical Luminescence (IGEN)... 

Fluorescent redox switches based on compounds with electron acceptors and fluorophores have been also reported. For instance, by making use of the quinone/ hydroquinone redox couple a redox-responsive fluorescence switch can be established with molecule 19 containing a ruthenium tris(bpy) (bpy = 2,2 -bipyridine) complex.29 Within molecule 19, the excited state of the ruthenium center, that is, the triplet metal-to-ligand charge transfer (MLCT) state, is effectively quenched by electron transfer to the quinone group. When the quinone is reduced to the hydroquinone either chemically or electrochemically, luminescence is emitted from the ruthenium center in molecule 19. Similarly, molecule 20, a ruthenium (II) complex withhydroquinone-functionalized 2,2 6, 2"-terpyridine (tpy) and (4 -phenylethynyl-2,2 6, 2"- terpyridine) as ligands, also works as a redox fluorescence switch.30... 

N. N. Rozhitskii, A. I. Bykh, M. E. Krasnogolovetz, Electrochemical Luminescence Kharkiv Technical University of Radio Electronics Kharkiv 2000. 

An electrochemical luminescence-based immunoassay has been presented with HSA labeled with the aromatic hydrocarbon amino-pyrene (Ikariyama et al., 1985). The pyrene-labeled HSA luminesces during reduction at a platinum electrode, and on binding to Ab, the intensity of luminescence is decreased. A detection limit of 10 M for HSA was obtained. Labels with greater luminescence efficiency should provide lower detection limits. 

ECL electrochemical luminescence EMAC ethylene-methyl acrylate copolymer... 

A fiber-optic electrode was fabricated for the simultaneous generation and transmission of electrochemical luminescence by preparing a transparent electrode on the optical and surface of a fiber-optic. The opto-electrochemical properties of the micro-optical device were characterized in solutions containing the compounds required for luminol luminescence. The validity of sensitive measurement of electrochemiluminescence to be employed in a homogeneous immunoassay was evaluated by using potential step excitation of luminol in the presence and in the absence of hydrogen peroxide. 

Recendy the authors have proposed a new homogeneous immunoassay based on electrochemical luminescence, 1 employing aronutic hydrocarbons such as pyrene as an electrochemically aedve label (141. The principle the proposed immunoassay is schematically... 

Electrochemical luminescence of luminol was also shown with respect to the current-voitage relationship. Every solution was prepared in 0.1 M phosphate buffer (pH 7.0), and the scan rate was 100 mV/sec. 

Zhang C, Zhou G, Zhang Z, Aizawa M (1999) Highly sensitive electrochemical luminescence determination of thiamine. Anal Chim Acta 394(23) 165-170... 

OhtakeT, Hijii S, SonoyamaN, Sakata T (2006) Electrochemical luminescence of n-type ZnO semiconductor electrodes doped with rare earth metals under the anodic polarization. Appl Surface Sci 253 1753-1757... 

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