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Reversible photo-responsive vesicle based on the complexation between an azobenzene containing molecule and α-cyclodextrin†
Jianjia Liu,Liang Yan,Jie Wang,Tao Li,Hanqing Zhao,Li Li,Stephen F. Lincoln,Robert K. Prud’homme,Xuhong Guo
RSC Advances Pub Date : 03/26/2015 00:00:00 , DOI:10.1039/C5RA04597E
Abstract

An amphiphilic molecule (Azo-Cl) was successfully synthesized and found to be able to construct reversible spherical vesicles in water. The assembled vesicles disappeared on the addition of equimolar α-cyclodextrin (α-CD) and reformed with UV irradiation due to the exclusion of the cis-azobenzene (Azo) group from α-CD’s hydrophobic cavity. With Vis irradiation, the vesicles were demolished again as α-CD combined with the Azo group again. These reversible photo-responsive vesicles based on the complexation between Azo-Cl and α-CD should be ideal switchable biomimetic membranes or carriers for photo-controllable release of functional matters like drugs.

Graphical abstract: Reversible photo-responsive vesicle based on the complexation between an azobenzene containing molecule and α-cyclodextrin
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