writer：Dong, R. J.; Zhu, B. S.; Zhou, Y. F.*; Yan, D. Y.; Zhu, X. Y.*
keywords：block copolymers, breathing, fluorescence, self-assembly, vesicles
source：期刊
specific source：Angew. Chem. Int. Ed. 2012, 51, 11633. http://onlinelibrary.wiley.com/doi/10.1002/anie.201206
Issue time：2012年

Controlled, deep breathing: Polymeric vesicles that exhibit reversible pH-induced “breathing” behavior accompanied by switchable fluorescence (see picture) were prepared through the aqueous self-assembly of an amphiphilic block copolymer. Mechanistic studies showed that this jellyfish-like breathing and light-emitting behavior originates from protonation- or deprotonation-induced changes in the conformation of the azobenzene chromophores.