{"title":"Enhanced chemiluminescence in the oxidation of luminol and an isoluminol cortisol conjugate by hydrogen peroxide in reversed micelles.","authors":"D I Metelitza, A N Eryomin, V A Shibaev","doi":"10.1002/bio.1170070104","DOIUrl":null,"url":null,"abstract":"<p><p>The chemiluminescent oxidation of luminol and an isoluminol cortisol conjugate (ABI-COR) by hydrogen peroxide has been studied in cetyltrimethylammonium bromide (CTAB) reversed micelles in octane-chloroform (1:1). The maximum chemiluminescence intensity of both compounds is dependent on the initial concentrations of the H2O2 and substrates, the pH value of the micelle polar phase and the H2O/CTAB ratio. The optimum pH ranged from 8.5 to 9.5. Under comparable conditions, the chemiluminescence intensity for luminol was 15-fold higher than for the ABI-COR conjugate. A mechanism of oxidation of the substrates in reversed micelles is proposed and the possible mechanisms of inhibition by the substrate and oxidant is discussed.</p>","PeriodicalId":15068,"journal":{"name":"Journal of bioluminescence and chemiluminescence","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/bio.1170070104","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of bioluminescence and chemiluminescence","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/bio.1170070104","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
The chemiluminescent oxidation of luminol and an isoluminol cortisol conjugate (ABI-COR) by hydrogen peroxide has been studied in cetyltrimethylammonium bromide (CTAB) reversed micelles in octane-chloroform (1:1). The maximum chemiluminescence intensity of both compounds is dependent on the initial concentrations of the H2O2 and substrates, the pH value of the micelle polar phase and the H2O/CTAB ratio. The optimum pH ranged from 8.5 to 9.5. Under comparable conditions, the chemiluminescence intensity for luminol was 15-fold higher than for the ABI-COR conjugate. A mechanism of oxidation of the substrates in reversed micelles is proposed and the possible mechanisms of inhibition by the substrate and oxidant is discussed.
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