Detection of nitroaromatic explosives by new D-pi-A sensing fluorophores on the basis of the pyrimidine scaffold / Verbitskiy Egor V.,Baranova Anna A.,Lugovik Kseniya I.,Shafikov Marsel Z.,Khokhlov Konstantin O.,Cheprakova Ekaterina M.,Rusinov Gennady L.,Chupakhin Oleg N.,Charushin Valery N. // ANALYTICAL AND BIOANALYTICAL CHEMISTRY. - 2016. - V. 408, l. 15. - P. 4093-4101.

ISSN/EISSN:

1618-2642 / 1618-2650

Type:

Article

Abstract:

A series of D-pi-A- type dyes based on pyrimidines, bearing various thiophene linkers, have been studied as sensing fluorophores. Fluorescence studies have demonstrated that the emission of all derivatives is sensitive to the presence of nitroaromatic explosives, such as 2,4,6-trinitrophenol (PA), 2,4,6-trinitrotoluene (TNT), and 2,4-dinitrotoluene (DNT), in their acetonitrile solutions. The detection limits of fluorophores to PA, TNT, and DNT proved to be in the range from 5.83 x 10(-6) to 2.38 x 10(-7) mol/L, 1.70 x 10(-4) to 8.40 x 10(-6) mol/L, and 8.39 x 10(-5) to 6.87 x 10(-6) mol/L, respectively. The theoretical investigation into the quenching mechanism in the presence of fluorophore has been performed. All compounds have shown a good efficiency as sensor materials when tested as elements of the original device A << NitroscanA >> for detecting nitro-containing explosives in vapor phase (Plant ``Promautomatika{''

Author keywords:

Pyrimidines; Oligothiophene; Nitroaromatic explosives; Fluorescence quenching CHEMICAL SENSORS; BASIS-SETS; CHEMOSENSORS; POLYMERS; LUMINESCENT; DERIVATIVES; DYES

DOI:

10.1007/s00216-016-9501-4

Web of Science ID:

ISI:000376408700017

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN
Publisher	SPRINGER HEIDELBERG
Address	TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
Language	English
EISSN	1618-2650
Keywords-Plus	CHEMICAL SENSORS; BASIS-SETS; CHEMOSENSORS; POLYMERS; LUMINESCENT; DERIVATIVES; DYES
Research-Areas	Biochemistry \& Molecular Biology; Chemistry
Web-of-Science-Categories	Biochemical Research Methods; Chemistry, Analytical
Author-Email	Verbitskye@yandex.ru
ORCID-Numbers	Shafikov, Marsel/0000-0003-0495-0364
Funding-Acknowledgement	Russian Science Foundation {[}16-13-10435]; Government of the Russian Federation {[}02.A03.21.0006]
Funding-Text	The research was financially supported by the Russian Science Foundation (Project No. 16-13-10435) and by Act 211 Government of the Russian Federation, contract No 02.A03.21.0006.
Number-of-Cited-References	33
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	37
Journal-ISO	Anal. Bioanal. Chem.
Doc-Delivery-Number	DM5RW