The Use of Acridine Orange Base (AOB) as Molecular Probe to Characterize Non-aqueous AOT Reverse Micelles.

R. DARÍO FALCONE; N. MARIANO CORREA; M. ALICIA BIASUTTI; JUANA J. SILBER.

Academic Press

Lugar: New York, USA; Año: 2006 vol. 296 p. 356 - 356

p style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none" class="MsoNormal">The behavior of acridine orange base (AOB) in nonaqueous reverse micelles composed of n-heptane/AOT/polar solvent has been performed. Ethylene glycol (EG), propylene glycol (PG), glycerol (GY), formamide (FA), dimethylformamide (DMF), and dimethylacetamide (DMA) were employed as water substitutes. The studies were performed by static and time-resolved emission spectroscopy. Thus, the distribution of AOB between the two pseudophases of the aggregates was quantified by measuring the partition constants from emission spectra at different surfactant concentration. Similar values to those obtained by means of absorption spectroscopy were obtained. This match is indicating that AOB i