Journal
JOURNAL OF LUMINESCENCE
Volume 131, Issue 11, Pages 2330-2334Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2011.05.061
Keywords
Fluorescence; Zearalenone; Mycotoxin; Binding constant; Surfactant
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The chemiluminescent properties of the estrogenic mycotoxin zearalenone in the presence of aqueous micellar media were investigated using steady state fluorescence techniques. Micelles of surfactants sodium dodecyl sulfate (SDS), hexadecyltrimethylammonium bromide (CTAB), and non-ionic Triton X-100 enhanced the fluorescence intensity of zearalenone in aqueous solutions. The binding constants have been determined and indicate zearalenone has the highest affinity for Triton X-100, followed by CTAB, and then by SDS. The encapsulation of zearalenone by the micelles studied is spontaneous and exothermic. The selective microenvironments provided by organized micellar systems offer an attractive medium to modulate fluorescence detection of zearalenone. Published by Elsevier B.V.
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