A new quinoline-derived highly-sensitive fluorescent probe for the detection of hydrazine with excellent large-emission-shift ratiometric response

A Novel Fluorescent Probe for Selective Detection of Hydrazine and Its Application in Imaging

“…To avoid a complex preparation and strict procedures, researchers who are interested in convenient detection have paid attention to fluorescent probes [ 13 ]. As reported, a typical probe includes the fluorophore (such as benzothiazole [ 14 ], 1,8-naphthalene imide [ 15 ], coumarin [ 16 ], rhodamine [ 17 ], phenothiazine [ 18 ], carbazole [ 19 ], and cyanine dye [ 20 ]) and the recognition group (such as acetyl [ 21 ], levulinate [ 22 ], 4-bromo butyrate [ 23 ], phthalimide [ 24 ], aldehyde [ 25 ], cyano [ 26 ]). As we claimed in our previous work [ 27 ], compared with complex tools (such as rare earth [ 28 ], aggregation-induced enhancement (AIE) [ 29 ], nanoparticles [ 30 ], or carbon dots [ 31 ]), small molecular probes were preferred in the closed-loop monitoring of hydrazine circulation.…”

“…Structurally, we could conclude that TZPzine-1 had two potential advantages. One was that the optical properties could be regulated by changing the substitutes, while the other was that hydrazine was trapped in the fluorophore after the detection, unlike the departure in common mechanisms [ 21 , 22 , 23 , 24 ]. As compared with the previous reports in Table S1 in Supporting Information (SI) , TZPzine-1 showed a fast response within 20 min and a high selectivity.…”

A sensitive and selective fluorescent probe for hydrazine with a unique nonaromatic fluorophore

“…Till now, a wide diversity of uorophores such as cyanine, 19,20 hemicyanine, 21,22 BODIPY, 23,24 uorescein, 25,26 benzothiazole, 27,28 coumarin, 29,30 naphthalimide, 31,32 quinolone, 33 phenothiazine, 34 benzimidazole, 35 phenanthroimidazole, 36 pyrene 37 and tetraphenylethylene 38 have been applied in the manufacturing of uorescent probes for hydrazine detection and different properties and applications have been demonstrated. Unlike the aforementioned classical uorophores with at least one aromatic or heteroaromatic ring, herein, we report the synthesis and application of a novel uorescent probe (Che-Dcv) with a unique conjugated p-structure as the uorophore.…”