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Pieńkos, Milena; Zadykowicz, Beata
Chemphyschem, August 3, 2022, Volume: 23, Issue: 15Journal Article
Chemiluminescent labelling, which is one of the promising procedures of modern immunodiagnostics, is increasingly carried out using acridinium derivatives, an oxidant, and an alkaline aqueous environment. However, the efficiency of the chemiluminescence of luminol or acridinium esters is higher in non‐aqueous solvents such as dimethyl sulfoxide or acetonitrile. Therefore, the search for a new environment for the chemiluminescence reaction, especially the one characterized by a higher quantum yield of chemiluminescence, is one of the aims of current research. Using computational methods (DFT and TD DFT with PCM model of solvent), we examined thermodynamic and kinetic data concerning the chemiluminescence and competitive dark pathways. Our results suggest that better characteristics of the chemiluminescence reaction of acridinium thioester are observed in nonpolar solvents, such as methylcyclohexane, n‐hexane and n‐pentane, than in aqueous media used so far. Further experimental verification is necessary to confirm the possible application of proposed nonpolar solvents in chemiluminescent labelling and hence in immunodiagnostics. The efficiency of the chemiluminescence of luminol or acridinium esters is higher in nonaqueous solvents such as dimethyl sulfoxide or acetonitrile. Therefore, the search for new environments for the chemiluminescence reaction is one of the aims of current research. Using computational methods, the authors examine thermodynamic and kinetic data related to the chemiluminescence and competitive dark pathways.
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