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Inorganica Chimica Acta
The recognition and sensing of the biologically and environmentally important metal ions has emer... more The recognition and sensing of the biologically and environmentally important metal ions has emerged as a significant goal in the field of chemical sensors in recent years. Among the various analytical methods, fluorescence has been a powerful tool due to its simplicity, high detection limit and application to bioimaging. This review highlights the fluorescent chemosensors for metal ions, which have been recently developed from our laboratory. This review was categorized by target metal ions, such as Cu 2+ , Hg 2+ , Zn 2+ , Pb 2+ , Cd 2+ , Vanadate, Ag + and Au 3+ . Selectivity and sensitivity for these metal ions were achieved by introducing various ligands to core fluorophores, such as, rhodamine, fluorescein, pyrene, anthracene, naphthalimide, coumarin, and BODIPY.
Tetrahedron Letters, 2010
Novel rhodamine B (RB) derivatives bearing mono and bis-boronic acid groups were investigated as ... more Novel rhodamine B (RB) derivatives bearing mono and bis-boronic acid groups were investigated as Hg 2+ selective fluorescent and colorimetric sensors. These derivatives are first examples of reversible fluorescent chemosensors for Hg 2+ which utilized boronic acid groups as binding sites. Two new RB-boronic acid derivatives displayed selective 'Off-On'-type fluorescent enhancements and distinct color changes with Hg 2+ . Selective fluorescent enhancement of two rhodamine derivatives was attributed to ring opening from the spirolactam (nonfluorescent) to ring-opened amide (fluorescent).
Inorganica Chimica Acta
The recognition and sensing of the biologically and environmentally important metal ions has emer... more The recognition and sensing of the biologically and environmentally important metal ions has emerged as a significant goal in the field of chemical sensors in recent years. Among the various analytical methods, fluorescence has been a powerful tool due to its simplicity, high detection limit and application to bioimaging. This review highlights the fluorescent chemosensors for metal ions, which have been recently developed from our laboratory. This review was categorized by target metal ions, such as Cu 2+ , Hg 2+ , Zn 2+ , Pb 2+ , Cd 2+ , Vanadate, Ag + and Au 3+ . Selectivity and sensitivity for these metal ions were achieved by introducing various ligands to core fluorophores, such as, rhodamine, fluorescein, pyrene, anthracene, naphthalimide, coumarin, and BODIPY.
Tetrahedron Letters, 2010
Novel rhodamine B (RB) derivatives bearing mono and bis-boronic acid groups were investigated as ... more Novel rhodamine B (RB) derivatives bearing mono and bis-boronic acid groups were investigated as Hg 2+ selective fluorescent and colorimetric sensors. These derivatives are first examples of reversible fluorescent chemosensors for Hg 2+ which utilized boronic acid groups as binding sites. Two new RB-boronic acid derivatives displayed selective 'Off-On'-type fluorescent enhancements and distinct color changes with Hg 2+ . Selective fluorescent enhancement of two rhodamine derivatives was attributed to ring opening from the spirolactam (nonfluorescent) to ring-opened amide (fluorescent).