Gubitosi M, Travaglini L, di Gregorio MC, Pavel NV, Vázquez Tato J, Sennato S, Olsson U, Schillén K, Galantini L. Tailoring supramolecular nanotubes by bile salt based surfactant mixtures.
Angew Chem Int Ed Engl 2015;
54:7018-21. [PMID:
25925079 DOI:
10.1002/anie.201500445]
[Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 02/26/2015] [Indexed: 12/27/2022]
Abstract
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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