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Tailoring Supramolecular Nanotubes by Bile Salt Based Surfactant Mixtures

Gubitosi, Marta; Travaglini, Leana; di Gregorio, Maria Chiara; Pavel, Nicolae V.; Vázquez Tato, José; Sennato, Simona; Olsson, Ulf; Schillén, Karin; Galantini, Luciano

By 12 March 2019No Comments

Angewandte Chemie International Edition, 2015, vol 54, 24, pp. 7018-7021



An approach for tailoring self-assembled tubular structures is described. By controlling the relative composition of a two-component surfactant mixture comprising the natural bile salt lithocholate and its bolamphiphilic derivative, it was possible to finely tune the nanotube cross-section of the mixed tubular aggregates that self-associated spontaneously in aqueous solution at pH 12. The diameter was found to vary up to 50 % when the stoichiometric ratio of the two bile salts was changed. The tuning of supramolecular nanochannels with such remarkable precision is of significant interest for technological applications of these materials.

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