A novel coumarin derivative as a sensitive probe for tracing intracellular pH changes

Abstract

A novel coumarin derivative was synthesized and its application in live cell imaging was demonstrated.

Luminescence Tuning of Layered Rare-Earth Hydroxides (LRHs, R = Tb, Y) Composites with 3-Hydroxy-2-naphthoic Acid and Application to the Fluorescent Detection of Al3+

“…Optical chemosensors are designed in such a way that the detection event is easily measurable by observing a photophysical change. Fluorescent chemsensors have been considered as significant and promising approaches to biologically and/or environmentally important analytes, owing to their remarkable application in sensoring. − There has been some research on fluorescent chemsensing using LRH materials in the detection of oxoanionic species. Byeon’s group synthesized terbium-doped layered yttrium hydroxychloride (LYH: x Tb) working as a fluorescent detector for Cr­(VI) oxoanions in aqueous solution.…”

Fluorescent Sensors for the Detection of Heavy Metal Ions in Aqueous Media

“…Organic dyes have been widely employed for the development of fluorescence-based sensors [166,167,168] because of their attractive features: high molar extinction coefficient [169], bright signal [170], ease of modification [171], and presence of many possible reactive sites in their skeletons [172]. For the detection of heavy metal ions, these fluorophores are modified with an ion recognition unit (ionophore), which serves as host for the target metal ion (guest) [173].…”

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

“…Hence, the development of new Cu 2+ selective turn-on fluorescent probes is of the utmost importance and necessity. A number of mechanisms are proposed for the sensing of chemical species such as photoinduced electron/energy transfer (PET) [15], intramolecular charge transfer (ICT) [16,17], excimer/exciplex formation [18], excited-state intra-/intermolecular proton transfer (ESIPT) [19] and C=N isomerization [20]. But after Wang et al [21] reported the inhibition of C=N isomerization mechanism for Schiff base receptors upon their metal ion complexation, the C=N isomerization has occupied a prominent place and spurred the research towards optical sensing of metal ions through the C=N isomerization mechanism [22,23].…”