Premium
“Breathing” Vesicles with Jellyfish‐like On–Off Switchable Fluorescence Behavior
Author(s) -
Dong Ruijiao,
Zhu Bangshang,
Zhou Yongfeng,
Yan Deyue,
Zhu Xinyuan
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201206362
Subject(s) - azobenzene , protonation , breathing , amphiphile , vesicle , fluorescence , chromophore , deprotonation , jellyfish , chemistry , aqueous solution , photochemistry , biophysics , nanotechnology , materials science , copolymer , polymer , organic chemistry , biology , biochemistry , anatomy , optics , physics , ecology , ion , membrane
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.