A new coumarin-based “turn-on” fluorescence probe with high sensitivity and specificity for detecting hypochlorite ion

A novel “turn on” fluorescence probe based on a caffeic acid skeleton for detecting Al3+ and bioimaging application

“…The uorescence data were collected using a Hitachi F-7100 spectrometer. 1 H NMR and 13 C NMR spectra of new compounds were obtained using AVANCE NEO 500 equipment. UV-vis absorption data were collected using a Hitachi UH5300 spectrometer.…”

“…Compared with traditional detection methods, uorescence detection technology has the advantages of operational simplicity, a quick response, visual detection, and high selectivity, which have attracted considerable attention. [13][14][15][16] However, most reported probes have the shortcomings of low aqueous solubility, high toxicity, and limited sensitivity. Thus, the development of efficient uorescent probes for Al 3+ determination in biological systems with high sensitivity is still urgently needed.…”

Tunable full-color emission of stilbazoles containing a 2-halo-3,4-dicyanopyridine acceptor

“…1). 19–45 This is due to the fact that the pyridine ring acts as an electron-withdrawing group in the push–pull chromophore system. 44,45 Moreover, stilbazoles are often characterized by facile preparation methods and a wide application range.…”

“…Thus, it should be noted that a huge amount of data on the synthesis and application of various heterocyclic styryl derivatives has been collected to date. 19–45,47–50 However, stilbazoles with a nicotinonitrile fragment remain less studied, and there are also no data about azastilbenes with a dicyanopyridine fragment in the literature.…”

“…44,45 Moreover, stilbazoles are often characterized by facile preparation methods and a wide application range. For example, they can be used as non-linear optical materials (NLO), [19][20][21][22] light-absorbing components of dye-sensitized solar cells (DSSC), 23,24 organic light emitting diodes (OLED), 25,26 memory devices, 27 materials for two-photon absorption, 28,29 chemosensors, [30][31][32][33][34][35][36] fluorescent label probes [37][38][39][40] and dyes, [41][42][43] etc.…”