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Updated: Mar 31, 2026

A Polyaniline-based Sensor of Nucleic Acids
Published on: November 1, 2016
π-Electron rich small molecule sensors for the recognition of nitroaromatics
Sankarasekaran Shanmugaraju1, Partha Sarathi Mukherjee1
1Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India. psm@ipc.iisc.ernet.in.
Abstract:
Selective and discriminative detection of -NO2 containing high energy organic compounds such as picric acid (PA), 2,4,6-trinitrotoluene (TNT) and dinitrotoluene (DNT) has become a challenging task due to concerns over national security, criminal investigations and environment protections. Among various known detection methods, fluorescence techniques have gained special attention in recent time. A wide variety of fluorescent chemosensors have been developed for nitroaromatic explosive detection. In this review article, we provide an overview of the recent developments made in small molecule-based turn-off fluorescent sensors for nitroaromatic explosives with special focus on organic and H-bonded supramolecular sensors. The fluorescent sensors discussed in this review are classified and organized according to their functionality and their recognition of nitroaromatics by fluorescence quenching.
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