Single step synthesis of novel hybrid fluorescence probe for selective recognition of Pr(III) and As(III) from soil samples

Disposable paper-based PET fluorescence probe linked with calix[4]arene for lithium and phosphate ion detection

“…2.1 Synthesis of compounds A-C [40][41][42][43][44][45] is described in ESI † 2.1.1 Synthesis of compound D. A solution of C (0.5 g), DCC (0.25 g), DMAP (0.15 g) and 4-aminoquinoline (0.41 g) in DCM was stirred for 48 h. The actual reaction time was studied by taking thin layer chromatography (TLC) samples at regular time intervals by using a mixture of chloroform : methanol (3.5 : 1.5). The solvent was then evaporated under vacuum.…”

“…[31][32][33][34][35][36][37][38][39] To date, our team has been working on different types of calix [4]arene-based fluorescence sensors using various fluorophores to detect several molecular ions. [40][41][42][43][44][45] This paper deals with the development of calix [4]arene-based fluorescence sensor (p-C4A). p-C4A is appended with aminoquinoline species which act as the fluorophore unit and that are invaluable tools for the sensing of lithium and phosphate ions.…”

Construction of coumarin-appended calix[4]arene-based fluorescence sensor for the detection of carbofuran in cabbage

“…Simultaneously, the corresponding complex constant (association constant) was evaluated using the Benesi-Hildebrand equation 47 and was found to be 9.692 × 10 6 M −1 (Fig. 3(B)).…”

“…Our expertise in host-guest chemistry and uorescence sensors motivated us to explore novel synthetic uorescent host-guest systems for the purpose of detecting different molecular ions. [44][45][46][47][48][49][50][51][52] Following our seminal innovation of different receptors, we envisaged that substitution at the lowerrim of calix [4]arene with a cystamine linkage and coumarin uorophore will be a suitable approach for the recognition of CBF insecticide. This study proposes a scalable and extendable strategy for designing the highly efficient uorescence sensor CouC4S for the detection of CBF insecticide.…”