Self-assembly in surfactant-based liquid mixtures: Octanoic acid/Bis(2-ethylhexyl)amine systems

► Evolution and control of properties in Bis(2-ethylhexyl)amine plus octanoic acid mixtures. ► Proton transfer from the octanoic acid to Bis(2-ethylhexyl)amine triggers self-assembly. ► More than seven orders of magnitude enhancement in conductivity in the mixtures.