It is easy to encapsulate water in nanoscale droplets using the surfactant AOT (sodium dioctylsulfosuccinate) in a nonpolar phase by forming reverse micelles. But questions always arise about nature of the water in these nanopools. Over the years, Debbie Crans has dramatically increased my toolkit for studying these interesting systems and together we have explored a range of interesting, and sometimes unexpected behavior. This presentation will describe experiments designed to explore the ionic strength in AOT reverse micelles using F-19 NMR spectroscopy of the fluoride anion trapped inside. We find that F<sup>-</sup> can be an effective probe of ionic strength in these systems.

Measuring ionic strength in a nanodroplet one story of how Debbie Crans greatly expanded my horizon

2019 Spring National Meeting

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