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Bispyrenylalkane Chemosensor for the Naked-eye Detection of Nitro-explosives

I. S. Kovalev, L. K. Sadieva, O. S. Taniya, V. M. Yurk, A. S. Minin, D. S. Kopchuk, G. V. Zyryanov, V. N. Charushin, O. N. Chupakhin


Pyrene-based compounds have a great potential as fluorescent chemosensors for various analytes including common nitro-explosives, such as 2,4,6-trinitrotoluene (TNT). Compounds having two pyrene units in one molecule, such as bispyrenylalkanes, are able to form stable, bright emissive in a visual wavelength region excimers both in non-polar and polar environments. In this work we wish to report that in non-polar solvents the excimer has poor chemosensing properties while in aqueous solutions it provides significant “turn-off” fluorescence response to TNT in the sub-nanomolar concentrations.


detection of explosives in aqueous media; chemical sensors; pyrene-based fluorophores; fluorescence quenching

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Copyright (c) 2021 I.S. Kovalev, L.K. Sadieva, O.S. Taniya, V.M. Yurk, A.S. Minin, D.S. Kopchuk, G.V. Zyryanov, V.N. Charushin, O.N. Chupakhin

© Chimica Techno Acta, 2014-2021
ISSN 2411-1414 (Online)

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