Detection of TNT in Water Using an Evanescent Wave Fiber-Optic Biosensor

Shriver‐Lake, Lisa C.; Breslin, Kristen; Charles, Paul T.; Conrad, David W.; Golden, Joel P.; Ligler, Frances S.

doi:10.1021/ac00110a018

Cited by 134 publications

(83 citation statements)

References 7 publications

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“…One such biosensor is the fiber-optic biosensor developed at NRL, originally for the detection of TNT and RDX in ground water. [13][14][15][16][17][18] This sensor uses a competitive fluoroimmunoassay performed on the surface of an optical fiber. In the presence of TNT or RDX, a decrease in the maximum fluorescence (determined by reference/control sample) is observed that is proportional to the concentration of the explosive.…”

Section: Introductionmentioning

confidence: 99%

New horizons: Explosive detection in soil extracts with a fiber-optic biosensor

Shriver‐Lake

Patterson

Bergen

2000

Field Analyt. Chem. Technol.

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Section: Introductionmentioning

confidence: 99%

New horizons: Explosive detection in soil extracts with a fiber-optic biosensor

Shriver‐Lake

Patterson

Bergen

2000

Field Analyt. Chem. Technol.

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“…Further work expanded on this concept to increase the interaction length, using methods such as removing side claddings to create D-fibers [16], or tapering [17,18] to spread the evanescent field outside of the glass core along the length of the fiber. Microstructured optical fibers have emerged in recent years as an alternative platform for optical fiber fluorescence sensing, as the internal structure of those fibers can result in greatly increased interaction area between the light and the sample [4,[19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Quantification of the fluorescence sensing performance of microstructured optical fibers compared to multi-mode fiber tips

et al. 2016

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Rights url: https://www.osapublishing.org/submit/review/copyright_permissions.cfm# Creative Commons LicensingOSA is aware that some authors, as a condition of their funding, must publish their work under a Creative Commons license. We therefore offer a CC BY license for authors who indicate that their work is funded by agencies that we have confirmed have this requirement. Authors must enter their funder(s) during the manuscript submission process. At that point, if appropriate, the CC BY license option will be available to select for an additional fee.Any subsequent reuse or distribution of content licensed under CC BY must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Abstract: Microstructured optical fibers, particularly those with a suspended-core geometry, have frequently been argued as efficient evanescent-field fluorescence-based sensors. However, to date there has not been a systematic comparison between such fibers and the more common geometry of a multi-mode fiber tip sensor. In this paper we make a direct comparison between these two fiber sensor geometries both theoretically and experimentally.Our results confirm that suspended-core fibers provide a significant advantage in terms of total collected fluorescence signal compared to multi-mode fibers using an equivalent experimental configuration. Noordegraaf, K. Nielsen, A. Carlsen, and A. Bjarklev, "Photonic crystal fiber based evanescent-wave sensor for detection of biomolecules in aqueous solutions," Opt. Lett. 29(17), 1974-1976 (2004). 12. E. Coscelli, M. Sozzi, F. Poli, D. Passaro, A. Cucinotta, S. Selleri, R. Corradini, and R. Marchelli, "Toward a highly specific DNA biosensor: Pna-modified suspended-core photonic crystal fibers," IEEE J. Sel. Top. Quantum Electron. 16(4), 967-972 (2010). 13. S. C. Warren-Smith, G. Nie, E. P. Schartner, L. A. Salamonsen, and T. M. Monro, "Enzyme activity assays within microstructured optical fibers enabled by automated alignment," Biomed. Opt. Express 3(12), 3304-3313 (2012). Opt. Quantum Electron. 26(3), S261-S272 (1994). 17. C. Bariain, I. R. Matías, F. J. Arregui, and M. Lopez-Amo, "Optical fiber humidity sensor based on a tapered fiber coated with agarose gel," Sensor. Actuat. Biol. Chem. 69, 127-131 (2000). 18. L. C. Shriver-Lake, K. A. Breslin, P. T. Charles, D. W. Conrad, J. P. Golden, and F. S. Ligler, "Detection of tnt in water using an evanescent wave fiber-optic biosensor," Anal. Chem. 67(14), 2431-2435 (1995)

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“…2,3 Ingestion may cause liver damage, gastritis, aplastic anemia, cyanosis, and dermatitis. 4 TNT and its degradation products have been found in soil and water on the sites where TNT was manufactured, stored or used. 5,6 Both from environmental as well as a remediation point of view, there is a need for rapid on-site quantification of the TNT related aminoaromatic and nitroaromatic compounds.…”

Section: Introductionmentioning

confidence: 99%

On-line Liquid-liquid Extraction Coupled to a Reversed Micellar-mediated Chemiluminescence Detection System: Application to the Determination of Amino/Nitroaromatic Compounds

Mohammadzai¹,

Ashiuchi²,

Tsukahara³

et al. 2005

Jnl Chinese Chemical Soc

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A simple and fast flow method for the trace level determination of p-toluidine, 2-methyl-5-nitroaniline, and 2,4-dinitroaniline in aqueous samples is reported. These amino/nitroaromatics are related to trinitrotoluene (TNT) and appear during the degradation process of the explosive. The chemical principles of ion-pair formation and liquid-liquid extraction are applied: In aqueous acidic medium, the protonated analyte [HA] + makes an ion-pair with the tetrachloroaurate(III) ion, followed by on-line ion-pair extraction into the dichloromethane carrier used. After membrane separation, the CH 2 Cl 2 containing the ion-pair, [HA] + M for all the compounds. Although spectral studies indicated the formation and extraction of a very small amount of the ion-pair species, the reversed micellar-mediated CL detection system provides an alternative procedure for the determination of degradation products of the explosive TNT in environmental aqueous samples.

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Detection of TNT in Water Using an Evanescent Wave Fiber-Optic Biosensor

Cited by 134 publications

References 7 publications

New horizons: Explosive detection in soil extracts with a fiber-optic biosensor

New horizons: Explosive detection in soil extracts with a fiber-optic biosensor

Quantification of the fluorescence sensing performance of microstructured optical fibers compared to multi-mode fiber tips

On-line Liquid-liquid Extraction Coupled to a Reversed Micellar-mediated Chemiluminescence Detection System: Application to the Determination of Amino/Nitroaromatic Compounds

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