Copper(II)-directed static excimer formation of an anthracene-based highly selective fluorescent receptor

A new thio-Schiff base fluorophore with copper ion sensing, DNA binding and nuclease activity

“…3c shows calibration plot wherein linearity is observed between fluorescence quenching efficiency and Cu 2+ concentration in the range of 0.20-2.40 lM. The detection limit of 0.39 lM was calculated according to the IUPAC 3r criterion [28], which compares favorably with recently reported Cu 2+ detection data [29][30][31]. Being highly selective and sensitive, HPyETSC could function as a fluorescent sensor for Cu 2+ .…”

Luminescent sensor for copper(II) ion based on imine functionalized monometallic rhenium(I) complexes

“…Following this approach, a number of C=N isomerization based probes have been established for sensing various metal cations and anions [2426]. Malkondu and co-workers synthesized a novel 'turn-on' fluorescent receptor, methyl-3-((anthracen-9-ylmethylene)amino)benzoate (MAB), which on interaction with Cu 2+ caused a significant enhancement in emission intensity due to a combination of a unique anthracenyl static excimer formation, the restricted C=N isomerization and the suppression of highly efficient photoinduced electron transfer (PET) process [27].…”

A Couple of Tripodal and Dipodal Fluorescent Sensors for Sequential “On‐Off‐On” Response to Cu2+ and ATP/ADP Recognition in Aqueous Solution

“…Copper (II) ion is well known as the third most abundant transition metal ions in human body, which plays an important role in fundamental physiological processes. Significant efforts have been devoted to realize Cu 2+ detection in environmental or biological systems with exceptional selectivity and sensitivity . Just as important as the metal ions detection, the development of chemosensors for biologically essential anions recognition, for example nucleoside polyphosphates, has become an active research area ,.…”

“…Significant efforts have been devoted to realize Cu 2 + detection in environmental or biological systems with exceptional selectivity and sensitivity. [3][4][5][6][7][8][9] Just as important as the metal ions detection, the development of chemosensors for biologically essential anions recognition, for example nucleoside polyphosphates, has become an active research area. [1,10] Adenosine triphosphate (ATP) and adenosine diphosphate (ADP) are vital nucleoside polyphosphates, which play pivotal roles in biological processes including bioenergetic conversion and enzyme catalysis.…”