Optical, electrochemical and current−voltage characteristics of novel coumarin based 2,4-dinitrophenylhydrazone derivatives

Coumarin-pyridone conjugate as a fluorescent tag for LFPs visualization and electrochemical sensor for nitrite detection

“…The photophysical properties of coumarin chromophore containing conjugates were studied extensively due to their attractive optical properties, such as high quantum yield, AIE behavior, large Stokes shift, solvatochromic behavior, excellent stability and low toxicity. 7–12 Recent literature has reported that fluorescent active coumarins have been employed as a fluorescent marker for protein, 13,14 an emissive layer in OLEDs, 15 charge transfer agents 16 and optical whitening agents. 17…”

“…The photophysical properties of coumarin chromophore containing conjugates were studied extensively due to their attractive optical properties, such as high quantum yield, AIE behavior, large Stokes shift, solvatochromic behavior, excellent stability and low toxicity. [7][8][9][10][11][12] Recent literature has reported that fluorescent active coumarins have been employed as a fluorescent marker for protein, 13,14 an emissive layer in OLEDs, 15 charge transfer agents 16 and optical whitening agents. 17 Latent fingerprints (LFPs) visualization is very beneficial for the field of forensic science but several powders available for LFP development suffer from low sensitivity, low resolution, low stability and high toxicity.…”

“…Fig 16. Experimental amperometric data at peaks: (A) real sample analysis of nitrite in a sausage sample and (B) linearity plot of different concentrations of real sample vs. peak current at an applied scan rate of +500 mV.…”

Synthesis, characterization and biological investigations of potentially bioactive heterocyclic compounds containing 4-hydroxy coumarin

“…Also, the azo benzene derivatives found more applications in liquid crystal studies due to its rod-like shape, photosensitive ability and photo induced alignment with reversible cis-trans transformation, dimerization in cross linking material and irreversible photo degradation [19]. The azo dyes containing coumarin nucleus has potential biological, optical and electrochemical properties and therefore it has been extensively studied by number of researchers [20,21,22,23].…”