Novel ‘naked-eye’ Bis-Schiff base fluorescent chemosensors for sensitive detection of Zn2+ and bio-imaging in living cells

Synthesis and characterization of sulfonated polytriazoles utilizing 1,4‐bis(4‐azido‐2‐(trifluoromethyl)phenoxy)benzene for the proton exchange membrane applications

“…Similarly, DMF and CH 3 CN were dried over P 2 O 5 and then distilled under a vacuum. The bis-alkyne monomer BPAAL 33 and the diamine compound 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene 44 were both produced using the previously described method.…”

“…The WU and LSR values of the BABPSSH-XX membranes increased from 10-24% to 11-32% and 3-10.9% to 4.2-15.5%, respectively, on increasing the temperature from 30 to 80 C. These increments of the WU and LSR values were identical with the previously reported hydrophobic trifluoromethyl group containing sulfonated polytriazole membranes in Table 2, having similar IEC w values. 33,34,44,45,57 Hence, these BABPSSH-XX membranes exhibit improved dimensional stability, low water uptake, and low linear swelling ratio, which is perfect for fuel cell applications.…”

“…43 Subsequently, several numbers of fluorinated sulfonated polytriazoles with different degrees of sulfonation (DS) were developed by Banerjee et al, which show sufficient proton conductivity and high mechanical, chemical, and thermal stabilities. [35][36][37][38][39]44,45 Based on the admirable performance of the fluorinated sulfonated polytriazoles, a new series of semifluorinated sulfonated polytriazoles with different DS has been synthesized and characterized. In this context, 1,4-bis(4-azido-2-(trifluoromethyl)phenoxy)benzene (BATFB), a novel trifluoromethyl substituted diazide monomer, was synthesized.…”

Turn on Fluorescence Sensing of Zn2+ Based on Fused Isoindole-Imidazole Scaffold

“…Herein, we report a fused isoindole imidazole fluorescent Schiff base chemosensor (1-{3-[(2-Diethylamino-ethylimino)-methyl]-2-hydroxy-5-methyl-phenyl}-2H-imidazo [5,1-a]isoindole-3,5-dione), which is labelled as IIED. Our hypothesis is based on the exploitation of an imidazole scaffold with Schiff bases, which are widely used in the field of metal ion detection [57][58][59][60][61][62][63][64]. The performed experimental and theoretical work demonstrated that IIED can detect Zn 2+ with a limit of 0.073 µM.…”

A highly selective pyridoxal-based chemosensor for the detection of Zn(ii) and application in live-cell imaging; X-ray crystallography of pyridoxal-TRIS Schiff-base Zn(ii) and Cu(ii) complexes

“…Several uorescent probes have been reported for the detection of zinc ion in a wide variety of cells such as A549 cells, SW620 cells, Vero cells, HeLa cells, MDA-MB 468 cells, HEK 293 cells, zebrash, and several other cells with applications in bio-imaging. [14][15][16][17][18][19][20][21][22] Additional studies have been carried out in similar alcohol/water mixtures as employed in the bio-imaging studies here. 20,[23][24][25] Dipicolylamine (DPA), coumarin, quinoline, bipyridine, triazole, iminodiacetic acid, acyclic and cyclic polyamines, and Schiff-bases are commonly used receptors to detect Zn(II) ion.…”