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Photodestructible Vesicles

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journal contribution
posted on 31.01.2006, 00:00 by Julian Eastoe, Ana Vesperinas, Anne-Carole Donnewirth, Paul Wyatt, Isabelle Grillo, Richard K. Heenan, Sean Davis
Stable vesicles are formed in a 1.4 wt % solution comprising a 1:3 mixture of the anionic photodestructible surfactant sodium 4-hexylphenylazosulfonate (C6PAS) and inert cationic cetyltrimethylamonium bromide (CTAB). UV irradiation drives an irreversible breakdown of the mixed C6PAS/CATB vesicles, owing to the selective degradation of C6PAS. A light-induced transition from small spherical-like polydisperse vesicles to long needle-like aggregation is observed.