Fig. 2: Aqueous sodium decanoate (717 mM) sample.

a UF DEXSY analysis implies that decanoate molecules, illustrated by an orange hydrophilic head and a yellow hydrophobic tail, form vesicles and that there is a diffusion driven exchange between the water molecules (oxygens and hydrogens illustrated by red and white) encapsulated within vesicles and free water molecules. Green arrows represent the exchange process. b ¹H spectrum of the sample. Blue and red colors highlight the water and decanoid signals, respectively. c Diffusion coefficient distribution of water measured by diffusion-ordered spectroscopy (DOSY). d DOSY diffusion coefficient distribution of decanoate. Blue and red arrows indicate, from which signals in the spectrum the diffusion coefficient distributions were extracted. Shaded red and blue areas indicate the diffusion coefficient regions of vesicles and free water, respectively.