A turn-on fluorescein spirolactam derivative as a high selective fluorescence probe for detection of silver ion(i) in water

Abstract

A fluorescein spirolactam derivative was synthesized and used as a “turn-on” fluorescence probe for the detection of Ag+ in water samples.

Green and Red Fluorescent Dyes for Translational Applications in Imaging and Sensing Analytes: A Dual‐Color Flag

“…For probe 23 , only one Ag I ion coordinates to the probe through the nitrogen donor atoms in the morpholine and benzylic amines, which blocks the PET phenomena; thus, “turn on” of fluorescence occurs (Figure ). Recently, fluorescein spirolactam derivative 26 was design by Lin and co‐workers; these authors have used this probe as a “turn‐on” fluorescence probe for the detection of Ag I ions in aqueous solutions (detection limit 0.08 μ m ), including tap, river, and lake waters; the results obtained are in excellent agreement with those obtained by studying the samples by flame atomic absorption spectrometry (Figure ).…”

Water soluble sulphur quantum dots for selective Ag+ sensing based on the ion aggregation-induced photoluminescence enhancement

“…With the development of nanotechnology, these puzzles can be solved by current developing sensor platform systems such as electrochemical sensors, 9-11 colorimetric detection 12,13 and uorescent sensors. [14][15][16][17][18] Fluorescent sensor platforms have several advantages, i.e., stabilization, high sensitivity, fast analysis, non-sample-destruction or less celldamage, and can be used as an alternative method for trace detection. [19][20][21] So far, many probes including organic molecules, 18,22 metal nanoclusters, 17,23 quantum dots (i.e., Au nanodots, graphene quantum dots and carbon nanodots), 15,24,25 etc.…”

A fluorescein derivative FLTC as a chemosensor for Hg2+ and Ag+ and its application in living-cell imaging

“…Therefore, the following cell studies were carried out using 5μM FLTC. SC1 52nM [23] HTMIX 80 nM [36] Complex 1 112nM [30] TPE-4DDC 874nM [38] only with DMSO or FLTC ( Fig. 6 b, d).…”

“…Therefore, an ethanol- that FLTC can be used to sense Hg 2+ ions as a "turn on" chemosensor. The mechanism may be explained by the formation of a strongly fluorescent ring-opened FLTC-Hg 2+ complex (Fig 3) [36] . indicates a 1:1 stoichiometry for the FLTC-Hg 2+ complex (Fig.…”