Reversible dynamic optical sensing based on coumarin modified β-cyclodextrin for glutathione in living cells
Zhixue Liu, Mengdi Tian, Heng Zhang, Yu Liu
Abstract
Coumarin acting as an optical probe was modified on ethylenediamine β-cyclodextrin, which not only enhanced its molecular binding affinity to glutathione (GSH) by a reversible Michael addition, showing 113 times more affinity than that of coumarin itself, but also achieved dynamic real-time sensing of glutathione in living HeLa cells.
Topics & Concepts
CoumarinGlutathioneEthylenediamineCyclodextrinChemistryHeLaCombinatorial chemistryFluorescenceBiophysicsBiochemistryOrganic chemistryCellBiologyOpticsPhysicsEnzymeMolecular Sensors and Ion DetectionSulfur Compounds in BiologyLuminescence and Fluorescent Materials