Ratiometric fluorescence detection of fluoride ion by indole-based receptor

Inhibitory effect of synthetic aromatic heterocycle thiosemicarbazone derivatives on mushroom tyrosinase: Insights from fluorescence, 1 H NMR titration and molecular docking studies

“…1 H NMR titration is a useful method to identify interaction between different molecules by determining chemical shift of hydrogen atoms (Gromov et al, 2014;Liu et al, 2015). The interactions between compounds 1a-3a and tyrosinase were further observed from 1 H NMR titrations in DMSO-d 6 .…”

Two Pyridine‐Based Fluorescent Probes for Sensing pH

“…When the recognition group receives a signal, it will deliver the signal to fluorophore, leading to the variation of fluorescence emission wavelength and intensity. [21][22][23][24][25] To date, considerable efforts have been devoted to this field, and a variety of fluorescent probes for intracellular pH have been exploited. The reported fluorescent probes for detecting pH were mainly based on heteroatomic compounds including the coumarins, rhodamine, cyanine, naphthalimide and bodipy, [26][27][28][29][30][31] which possess the excellent fluorescence properties.…”

“…A typical fluorescent probe includes the recognition group and the fluorophore. When the recognition group receives a signal, it will deliver the signal to fluorophore, leading to the variation of fluorescence emission wavelength and intensity [21–25] . To date, considerable efforts have been devoted to this field, and a variety of fluorescent probes for intracellular pH have been exploited.…”

From Dual to Discriminatory Sensing of CN‐/F‐Using Isomeric Molecules and Ascertained by Spectroscopic and DFT Methods

“…There are several widely acceptable F − ion sensing techniques like 19 F NMR, colorimetric and electrochemical methods with the latter being the most well established. Both NMR and electrochemical approaches have their limitations for being ineffective in cost, time and sensitivity and non‐viability for in vivo studies . Therefore the most attractive approach for ion recognition is through a visible color change which requires no special equipment, therefore chromogenic sensors producing optical responses are the most popular ones .…”