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A Spiropyran‐Based Ensemble for Visual Recognition and Quantification of Cysteine and Homocysteine at Physiological Levels
Author(s) -
Shao Na,
Jin Jian Yu,
Cheung Sin Man,
Yang Rong Hua,
Chan Wing Hong,
Mo Tian
Publication year - 2006
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.200600112
Subject(s) - spiropyran , cysteine , homocysteine , isomerization , ligand (biochemistry) , ternary operation , chemistry , ternary complex , computer science , biochemistry , receptor , organic chemistry , molecule , programming language , enzyme , catalysis
Isomerization of the ligand , followed by cooperative metal–ligand interactions leads to the ternary ensemble shown on the right, which has potential for the recognition and quantification of cysteine and homocysteine. The free ligand (left) is red‐violet in solution, but when metal ions and cysteine or homocysteine are simultaneously introduced, the solution turns yellow.