MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202621078313 A) filed by National Forensic Sciences University on June 25, 2026, for Fluorescent 2-(4-((1h-1,2,3-Triazol-5-Yl)methoxy)phenyl)-1h-Phenanthro[9,10-D]imidazole Derivatives.
Inventors include Riya Khandelwal; Dr. Mahesh Vasava; Chintan Parmar; and Dr. Bhoomika Patel.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: ABSTRACT Fluorescent 2-(4-((1H-1,2,3-triazol-5-yl)methoxy)phenyl)-1H-phenanthro[9,10-d]imidazole derivatives The present invention discloses a library of twenty Phenanthro-Imidazole-linked 1,2,3-Triazole (PIT) derivative compounds (8a-8t) of the general molecular formula 1-phenyl-2-(4-((1-phenyl-1H-1,2,3-triazol-5- yl)methoxy)phenyl)-1H-phenanthro[9,10-d]imidazole], synthesized via a three-staged multicomponent reaction incorporating CuAAC click chemistry, which can be used as fluorescence-based chemosensors for the selective and sensitive trace-level detection of military-grade nitroexplosive materials TNT, RDX, and PETN. The synthesized compounds are highly efficient at detecting even minute concentrations of nitroaromatics and other electron-deficient analytes in any kind of matrix, due to the prolonged conjugation of the phenanthrene moiety and the electron-donating properties of the imidazole ring. The synthesized chemosensors can be used to prepare fluorescent test strips or TLC plates, for the rapid on-site detection of the presence of explosives in any real-world simple or complex matrix like tap water, wastewater, industrial effluent etc. The chemosensor coated paper strips gives visual detection limit of TNT upto 44.03 nM. Fig. 1(a)
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