Pramanik, Bapan; Das, Saurav; Das, Debapratim published the artcile< Aggregation-directed High Fidelity Sensing of Picric Acid by a Perylenediimide-based Luminogen>, Related Products of 3731-53-1, the main research area is aggregation directed fluorescent sensor picric acid perylenediimide luminogen; aggregation caused quenching; chemosensor; explosive sensor; perylenediimide; picric acid.
Widespread use of picric acid (PA) in chem. industries and deadly explosives poses dreadful impact on all living creatures as well as the natural environment and has raised global concerns that necessitate the development of fast and efficient sensing platforms. To address this issue, herein, we report a perylenediimide-peptide conjugate, PDI-1 (I), for detection of PA in methanol. The probe displays typical aggregation caused quenching (ACQ) behavior and exhibits a fluorescence “”turn-off”” sensory response towards PA which is unaffected by the presence of other interfering nitroarom. compounds The sensing mechanism involves PA induced aggregation of the probe into higher order tape like structures which leads to quenching of emission. The probe possesses a low detection limit of 5.6 nM or 1.28 ppb and a significantly high Stern-Volmer constant of 6.87×104 M-1. It also exhibits conducting properties in the presence of PA vapors and thus represents a prospective candidate for vapor phase detection of PA. This is, to the best of our knowledge, the first example of a perylenediimide based probe that demonstrates extremely specific, selective and sensitive detection of PA and thus grasps the potential for application in practical scenarios.
Chemistry – An Asian Journal published new progress about Aggregation. 3731-53-1 belongs to class pyridine-derivatives, and the molecular formula is C6H8N2, Related Products of 3731-53-1.