Premium
Protonation‐Triggered Conversion between Single‐ and Triple‐Stranded Helices with a Visible Fluorescence Change
Author(s) -
Jin XuHui,
Wang Jian,
Sun JianKe,
Zhang HongXing,
Zhang Jie
Publication year - 2011
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.201005613
Subject(s) - protonation , viologen , triple helix , fluorescence , transformation (genetics) , hydrogen bond , signal (programming language) , helix (gastropod) , derivative (finance) , chemistry , transition (genetics) , computer science , combinatorial chemistry , photochemistry , nanotechnology , materials science , stereochemistry , physics , molecule , optics , biochemistry , biology , organic chemistry , ecology , snail , financial economics , economics , programming language , ion , gene
A flexible viologen carboxylic acid derivative forms single‐ and triple‐stranded helices by hydrogen‐bonding interactions, and undergoes pH‐triggered helical transformation by a water‐mediated solid‐state conversion (see picture). This transformation is accompanied by a fluorescence signal change that can be directly observed by the naked eye under a UV lamp.