Pyrene-based chemosens or detects picric acid upto attogram level through aggregation enhanced excimer emission

Analytica Chimica Acta
Rakesh ChopraKamaljit Singh

Abstract

A pyrene-based small molecular weight probe, exhibiting aggregation enhanced excimer emission has been synthesized. The crystalline emissive form detects 2,4,6-trinitrophenol (picric acid) at parts-per-billion concentration in solution and as low as 0.46 attogram in direct contact mode, operating predominantly in a static quenching mechanism, proposed on the basis of steady state and life-time fluorescence measurements.

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Citations

Aug 28, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Rakesh ChopraKamaljit Singh
Sep 8, 2017·Chemical Communications : Chem Comm·Zhen-Hai FuYu Peng
Mar 16, 2017·Journal of Fluorescence·S NagendranRamaswamy Murugavel
Jul 13, 2019·ACS Sensors·Yu Lin Jiang, Ann-Marie Broome

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