A dual analyte fluorescent chemosensor based on a furan-pyrene conjugate for Al 3+ & HSO 3 −

Dual Functional Fluorescent Chemosensor for Discriminative Detection of Ni2+ and Al3+ Ions and Its Imaging in Living Cells

“…These behaviors suggest that ( S )-1 has the potential to be used as a “turn-on” fluorescent probe for Ni 2+ and Al 3+ ions. The enhanced fluorescence in the presence of Ni 2+ has been attributed to the prevention of PET from the alcoholic hydroxyl groups to the aromatic moiety upon complexation with Ni 2+ . Al 3+ binding with ( S )-1 leads to fluorescence enhancement along with 20 nm red-shifted (380 to 400 nm) fluorescence owing to an intramolecular charge transfer (ICT) process between one binaphthyl unit to the other naphthyl moiety. − As a result, receptor ( S )-1 selectively binds with Ni 2+ and Al 3+ ions, respectively.…”

A ratiometric fluorescent probe for the rapid and specific detection of HSO3− in water samples

“…[19][20][21][22][23][24][25] To date, many various types of fluorescent probes have been developed for HSO 3 − . However, many of these are single-signal fluorescent probes [26][27][28][29][30][31][32][33][34][35] that are often influenced by many factors such as external detection environment conditions, photo-bleaching effects, stability of instruments, background signals, and probe distribution. Ratiometric fluorescent probes can greatly reduce the adverse effects of these interference factors and improve the sensitivity, specificity and quantitative detection range because they use the ratio of fluorescence intensities at two different emission wavelengths as the detection parameter.…”

A bis-chalcone based colorimetric probe for the selective detection of bisulfite/sulfite anions: exploring surfactant promoted Michael addition of anions to α, β-unsaturated ketones

“…Therefore, calorimetric and fluorescent probes have been regarded as versatile tools for monitoring ions and biomolecules. 19–22…”