A near-infrared fluorescent probe for rapid, colorimetric and ratiometric detection of bisulfite in food, serum, and living cells

A new near-infrared ratiometric fluorescent probe for hydrazine

“…In addition, the group of professor Feng in Central China Normal University has reported some hemicyanine derivatives, which have similar chemical structures as that herein and can detect both SO 3 2À and HSO 3 À . [56][57][58] Such strange results make us have interest to work hard to clarify the difference in properties of similar organic dyes.…”

An effective colorimetric and ratiometric fluorescent probe for bisulfite in aqueous solution

“…The results displayed good recovery, and corresponded to the standard enacted by Standardization Administration of the People's Republic of China [67]. Compared with the existing methods, probe BICO could be used to detect bisulfite in real samples [46,49,54]. Encouraged by the results, we made bisulfite test strips to detect different concentrations of bisulfite in water.…”

“…Although some excellent probes emit in NIR [44e52], none of these probes are used by near-infrared (NIR) excitation. Three reported probes with large emission wavelengths (l em > 640 nm) use dual excited wavelengths and respond to bisulfite and sulfite [45,48,49]. Two bisulfite probes with a,b-unsaturated ketone group exhibit good properties in practical samples, but they lack living cell imaging [46,47].…”

Rapidly responsive and highly selective fluorescent probe for sulfite detection in real samples and living cells

“…The probes have shortcomings, including low sensitivity or long response time for levulinate probes, and poor performance under pure water for other probe types. In contrast, Michael addition-type probes are more regnant than other probes, and they produce colorimetric and fluorescent dual-response reaction under mild conditions [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”