Journal
JOURNAL OF FLUORESCENCE
Volume 30, Issue 4, Pages 849-857Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-020-02553-8
Keywords
Fluorescent Dye; Sodium Dodecyl Sulfate; Micelles; Fluorescence Lifetime
Funding
- Erzincan Binali Yldrm University Scientific Research Project Councils
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Photophysical properties of fluorescent dyes such as Safranin T, Acridine Orange, Pyronin B and Pyronin Y in SDS micelles were examined by using spectroscopic techniques. Firstly, spherical micelles in deionized water were prepared with Sodium Dodecyl Sulfate (SDS) surfactants and they were transformed into their layered structures (lamellar micelles) by the aid of NaCl (sodium chloride). SEM studies confirmed the transformation of SDS micelles from the spherical structures to the lamellar structures. Secondly, absorption and fluorescence characteristics of the dyes in deionized water and the SDS micelles aqueous solutions were characterized in the presence of various NaCl concentrations at above the critical micelle concentration (CMC). Moreover, the photophysical properties of the dyes in various media were discussed by fluorescence quantum yield and fluorescence lifetime data. The micellar structures called a mimetic membrane system changed the photophysical properties of the dyes compared to those in deionized water.
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