Agradecimentos: The authors thank FAPESP for supporting this research and the Brazilian Synchrotron Laboratory for allowing us to carry out the small angle X-ray scattering experiments. We wish to thank Dr. C.L.P. Oliveira, and T.S. Plivelic of the LNLS staff, for valuable help with the experiments and computational routines Ver menos

Abstract: Hydrophobic liquid membranes have a high technological potential in many fields of separation science. The dynamics of these systems is very complex and still not fully understood. In this work we studied the effect of the incorporation of cationic and anionic l-tryptophan at pH 1.8 and 10.0, respectively, in Aerosol-OT reverse micelles performing small angle X-ray scattering experiments. The use of a synchrotron radiation source allowed efficient in situ data acquisition. Several insights on l-tryptophan transport dynamics through hydrophobic membranes containing AOT could be obtained from these SAXS experiments, such as amino acid site localization and changes in the reverse micelle sizes Ver menos