Chemosensors for detection of nitroaromatic compounds (explosives)

Zyryanov, Grigory V.; Kopchuk, Dmitry S.; Коvalev, Igor S.; Носова, Э. В.; Русинов, В. Л.; Чупахин, О. Н.

doi:10.1070/rc2014v083n09abeh004467

Cited by 82 publications

(58 citation statements)

References 219 publications

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“…The most common explosives appear to be presented by the class of nitroaromatic compounds (NACs), which have received a great attention during the last decades due to global terror threats, and also because of their high toxicity for the environment [8][9][10][11][12]. A variety of analytical methods have been developed for sensitive detection of nitroaromatic compounds [7]. The photoluminescence method based on using chemosensors and exploiting sensitive fluorescence quenching by nitroaromatic derivatives has been studied the most extensively both for vapor and solution phases [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Development of sensors capable of rapid detection of chemical explosives is currently one of highlight research topics [1][2][3][4][5][6][7]. The most common explosives appear to be presented by the class of nitroaromatic compounds (NACs), which have received a great attention during the last decades due to global terror threats, and also because of their high toxicity for the environment [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Detection of nitroaromatic explosives by new D–π–A sensing fluorophores on the basis of the pyrimidine scaffold

et al. 2016

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A series of D-π-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 × 10(-6) to 2.38 × 10(-7) mol/L, 1.70 × 10(-4) to 8.40 × 10(-6) mol/L, and 8.39 × 10(-5) to 6.87 × 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 «Nitroscan» for detecting nitro-containing explosives in vapor phase (Plant "Promautomatika", Ekaterinburg, Russia). Graphical Abstract ᅟ.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Detection of nitroaromatic explosives by new D–π–A sensing fluorophores on the basis of the pyrimidine scaffold

et al. 2016

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“…There are some standard techniques used for the detection of trace quantities of explosive materials. Some of these techniques for explosive material detection include gas chromatography 1 , 2-4 , x-ray analysis 5,6 , neutron activation 7-11 , chemiluminescence [12][13][14][15][16][17] , vapor detection via cantilever [18][19][20][21] systems and even biological techniques like dog noses [18][19][20][21][22][23][24][25][26] or honeybees 27,28 . However, despite the vast array of available techniques, none of these have yet proven 100% effective and ruggedized in the presence of a complex chemical background and under standard theatre environments encountered.…”

Section: Introductionmentioning

confidence: 99%

Raman Detection of improvised explosive device (IED) material fabricated using drop-on-demand Inkjet Technology on several real world surfaces

2015

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The requirement to detect hazardous materials (i.e., chemical, biological, and explosive) on a host of materials has led to the development of hazard detection systems. These new technologies and their capabilities could have immediate uses for the US military, national security agencies, and environmental response teams in efforts to keep people secure and safe. In particular, due to the increasing use by terrorists, the detection of common explosives and improvised explosive device (IED) materials have motivated research efforts toward detecting trace (i.e., particle level) quantities on multiple commonly encountered surfaces (e.g., textiles, metals, plastics, natural products, and even people). Non-destructive detection techniques can detect trace quantities of explosive materials; however, it can be challenging in the presence of a complex chemical background. One spectroscopic technique gaining increased attention for detection is Raman.One popular explosive precursor material is ammonium nitrate (AN). The material AN has many agricultural applications, however it can also be used in the fabrication of IEDs or homemade explosives (HMEs). In this paper, known amounts of AN will be deposited using an inkjet printer into several different common material surfaces (e.g., wood, human hair, textiles, metals, plastics). The materials are characterized with microscope images and by collecting Raman spectral data. In this report the detection and identification of AN will be demonstrated.

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“…6 When compared with conjugated polymers, however, small conjugated molecules have advantages due to their ease of synthesis and purification, in well-defined structures and better batch-to-batch reproducibility. 7,12 Fluorescent organic molecules and polymers bearing π-conjugated triphenylamine or carbazole fragments have gained the attention of both experimental and theoretical chemists. Thanks to the presence of highly delocalized π-electronic systems, these molecules have found wide applications in organic light-emitting diodes (OLEDs), nonlinear optics, dye-sensitized solar cells and field-effect transistors (FETs).…”

Section: Introductionmentioning

confidence: 99%

“…Current methods for the detection of nitroaromatic explosives are based on the use of dogs or sophisticated instruments, neither of which are always easily accessible. [5][6][7] Fluorescence quenching techniques are more simple and sensitive tools. The design and synthesis of new organic fluorophores with a high emission efficiency for the detection of nitroaromatic explosives have attracted considerable attention.…”

Section: Introductionmentioning

confidence: 99%

New V-shaped push-pull systems based upon 4,5-di(hetero)aryl substituted pyrimidines: their synthesis and application for the detection of nitroaromatic explosives

Verbitskiy¹,

Баранова²,

Lugovik³

et al. 2016

Arkivoc

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A number of D-π-A-π-D type dyes based on pyrimidines, bearing various electron-donating carbazole and triphenylamine fragments, have been studied as sensing fluorophores. Fluorescence studies demonstrated that the emission of all derivatives in acetonitrile is sensitive to the presence of a number of nitroaromatic benzenoids, including explosives such as 2,4-dinitroanisole, picric acid, styphnic acid, 1,3,5-triethoxy-2,4,6-trinitrobenzene, 2,4-dinitrotoluene and 2,4,6-trinitrotoluene. Detection limits of fluorophores for the explosive compounds were in the range from 2 mM to 29 μM. A selective fluorescence quenching response, including a sharp color change under UV, especially for the trinitrophenolics, makes these fluorophores promising fluorescence sensory materials for nitroaromatic explosives.

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Chemosensors for detection of nitroaromatic compounds (explosives)

Cited by 82 publications

References 219 publications

Detection of nitroaromatic explosives by new D–π–A sensing fluorophores on the basis of the pyrimidine scaffold

Detection of nitroaromatic explosives by new D–π–A sensing fluorophores on the basis of the pyrimidine scaffold

Raman Detection of improvised explosive device (IED) material fabricated using drop-on-demand Inkjet Technology on several real world surfaces

New V-shaped push-pull systems based upon 4,5-di(hetero)aryl substituted pyrimidines: their synthesis and application for the detection of nitroaromatic explosives

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