Adsorption of multilamellar tubes with a temperature tunable diameter at the air/water interface

► Multilamellar tubes of the ethanolamine salt of 12-hydroxy stearic acid adsorb at the air/water interface. ► Similarly to what has been observed in bulk, the tubes have a temperature tunable diameter at the interface. ► All structural transitions at the interface display reversibility. ► The structure at the air/water interface can be tuned easily by temperature.