Luminol chemiluminescence in micellar media II: Energy transfer to fluorescein

Thermodynamics and Micellar Properties of Tetradecyltrimethylammonium Bromide in Formamide–Water Mixtures

“…On the contrary, fluorescein is an anionic probe which it is expected to be micellized, through electrostatic interactions, at the positively charged TTAB micellar surface. In fact, previous spectroscopic studies (42,43) have shown that fluorescein is solubilized in the inner part of the Stern region of cationic micelles formed by alkyltrimethylammonium surfactants. The steady-state fluorescence anisotropy, r , is related to the viscosity around the probe (η) by Perrin's equation…”

Fluorescence Anisotropy of Probes Solubilized in Micelles of Tetradecyltrymethylammonium Bromide: Effect of Ethylene Glycol Added

“…The use of fluorescein as a superficial probe in cationic micelles is justified by the anionic character of this probe, which ensures that the probe will be micellized, through electrostatic interactions, at the positively charged TTAB micellar surface. In fact, several spectroscopic studies previously reported (33,40) have shown that fluorescein is solubilized in the inner part of the Stern region of CTAB micelles. As TTAB is a surfactant with surface properties similar to CTAB, it seems reasonable to assume that fluorescein will be micellized in the same site in TTAB micelles.…”

Hot electron-induced electrochemiluminescence of fluorescein in aqueous solution

“…Often, fluorescein is only behaving as an energy acceptor and secondary emitter which is receiving energy, e.g., from luminol reaction products [6], singlet oxygen [7][8][9] or sulphide [10].…”