Premium
Fluorescent Chemosensors for Cu 2+ Ions: Fast, Selective, and Highly Sensitive
Author(s) -
Krämer Roland
Publication year - 1998
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/(sici)1521-3773(19980403)37:6<772::aid-anie772>3.0.co;2-z
Subject(s) - fluorophore , fluorescence , metal ions in aqueous solution , hydrazide , rhodamine , chemistry , ion , chelation , molecule , hydrolysis , photochemistry , rhodamine b , combinatorial chemistry , flexibility (engineering) , inorganic chemistry , organic chemistry , catalysis , physics , statistics , mathematics , quantum mechanics , photocatalysis
Low cross‐sensitivity for other metal ions and the ability to detect nanomolar concentrations of Cu 2+ ions are the exciting properties of fluorescence sensors in which a fluorophore and a chelating group are discrete subunits of the same molecule. The spatial separation offers considerable flexibility in design, which is a prerequisite for the optimization of sensor properties. The activity of the “chemodosimeter” 1 of Czarnik et al. is based on the Cu 2+ ‐induced hydrolysis of the hydrazide group and the formation of fluorescent rhodamine B.