A simple coumarin-based colorimetric and ratiometric chemosensor for acetate and a selective fluorescence turn-on probe for iodide

A novel colorimetric and fluorescent sensor for fluoride and pyrophosphate based on fluorenone signaling units

“…Due to many possible applications in analytical chemistry and biomedical research, a considerable amount of research attention has focused on the design of receptors with the ability to selectively bind cation, neutral and anionic species [1][2][3]. In particular, the design and synthesis of receptors capable of binding anionic guests is of critical importance, due to its potential applications in chemical, environmental, and biological processes [4].…”

A colorimetric chemosensor for the sequential recognition of Mercury (II) and iodide in aqueous media

“…Hence the iodide content of breast milk and urine is often required for nutritional, metabolic, and epidemiological studies of thyroid disorder [6]. Therefore, developing chemosensors that can detect iodide is strongly desired [7][8][9][10][11][12][13][14][15][16][17][18].Herein, we report the synthesis, characterization, and sensing properties of 1, based on the combination of the hydrazone moiety and the dimethylaniline one, as a selective colorimetric sequential chemosensor for Hg 2+ and I − . The receptor 1 could detect Hg 2+ by colorimetric response with high selectivity in aqueous media.…”

Coumarin-Derived Fluorescent Chemosensors

“…Coumarin-based hydrazone 78 acts as an ICT probe for detection of acetate, benzoate, and dihydrogenphosphate (Upadhyay et al, 2010b). Another coumarin-based hydrazone 79 has been utilized as both a colorimetric and ratiometric chemosensor for acetate and a selective fluorescence turn-on probe for iodide (Mahapatra et al, 2011). Compound 80 is a colorimetric and fluorescence anion sensor with the urea group as binding site and the coumarin moiety as signal unit.…”