Detection of Olfactory Traces by Orthogonal Gas Identification Technologies - DOGGIES

Daniilidis, I.; Filippi, Joanna; Vautz, Wolfgang; Dalcanale, Enrico; Zampolli, S.; Leventakis, George; Kauppinen, Ismo; Sinisalo, S.; Tsoulkas, V.; Kassouras, V.; Carras, Mary C.; Gerard, Barry; Pinalli, Roberta; Ragnoni, A.; Dujourdy, Laurence; Zavali, D.; Brun, Marcel; Grizis, V.; Argyris, A.; Syvridis, Dimitris

doi:10.1109/jisic.2014.76

Cited by 2 publications

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“…For gas sampling, a fast preconcentrator (few seconds) was deployed and the data obtained created a database of the characteristic chemical signatures of VOCs found in human scent (mainly volatile short-chain fatty acids such as the (E)-3-Methylhex-2-enoic acid) and in the headspace area above illicit drugs and explosives. Remarkably, human detection (after 15 min of human presence) in a confined area of 50 m 3 was demonstrated [37]. These results are promising, considering that illegal immigrant concealment cases take place in much smaller spaces and for longer times, allowing significant builtup of concentrations of characteristic markers of human presence.…”

Section: Field-deployable Chemical Sensing Technologies and Instrumen...mentioning

confidence: 68%

Advances in chemical sensing technologies for VOCs in breath for security/threat assessment, illicit drug detection, and human trafficking activity

Giannoukos

Agapiou

Taylor³

2018

J. Breath Res.

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On-site chemical sensing of compounds associated with security and terrorist attacks is of worldwide interest. Other related bio-monitoring topics include identification of individuals posing a threat from illicit drugs, explosive manufacturing, as well as searching for victims of human trafficking and collapsed buildings. The current status of field analytical technologies is directed towards the detection and identification of vapours and volatile organic compounds (VOCs). Some VOCs are associated with exhaled breath, where research is moving from individual breath testing (volatilome) to cell breath (microbiome) and most recently to crowd breath metabolites (exposome). In this paper, an overview of field-deployable chemical screening technologies (both stand-alone and those with portable characteristics) is given with application to early detection and monitoring of human exposome in security operations. On-site systems employed in exhaled breath analysis, i.e. mass spectrometry (MS), optical spectroscopy and chemical sensors are reviewed. Categories of VOCs of interest include (a) VOCs in human breath associated with exposure to threat compounds, and (b) VOCs characteristic of, and associated with, human body odour (e.g. breath, sweat). The latter are relevant to human trafficking scenarios. New technological approaches in miniaturised detection and screening systems are also presented (e.g. non-scanning digital light processing linear ion trap MS (DLP-LIT-MS), nanoparticles, mid-infrared photo-acoustic spectroscopy and hyphenated technologies). Finally, the outlook for rapid and precise, real-time field detection of threat traces in exhaled breath is revealed and discussed.

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Section: Field-deployable Chemical Sensing Technologies and Instrumen...mentioning

confidence: 68%

Advances in chemical sensing technologies for VOCs in breath for security/threat assessment, illicit drug detection, and human trafficking activity

Giannoukos

Agapiou

Taylor³

2018

J. Breath Res.

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“…The major bottleneck of masteringm olecular recognition at the gas-solidi nterface has been partly removed following two major trends:( i) directly connecting the recognition event at the interface to the transductionm ode; [49,52] (ii)using the molecular receptors as selectivep reconcentrator material. At present, the second approach is technologically more appealing since the receptors can be integrated in a large variety of analytical devices,r anging from SPME to MEMS and IMS [53] (ion mobility spectrometry).…”

Section: Discussionmentioning

confidence: 99%

Environmental Gas Sensing with Cavitands

Pinalli

Pedrini

Dalcanale

2017

Chemistry A European J

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Environmental gas sensing needs stringent sensor requirements in terms of sensitivity, selectivity and ruggedness. One of the major issues to be addressed is combining in a single device the conflicting requirements of molecular-level selectivity and low-ppb sensitivity. The exploitation of synthetic molecular receptors as sensing materials is particularly attractive to address the selectivity issue, to single out the desired analytes in the presence of overwhelming amounts of interferents. This minireview summarizes the strategies in environmental gas and vapor sensing using molecular receptors as selective hosts for specific analytes, with the main focus on cavitands. In particular, we highlight the use of these macrocycles as selective preconcentrator units to be integrated into portable devices for environmental monitoring. Depending on the class of analytes to be detected, the molecular recognition properties of cavitands can be manipulated through the proper choice of the bridging groups at the upper rim, and their transducer integration can be implemented through the manifold functionalization options at the lower rim.

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Detection of Olfactory Traces by Orthogonal Gas Identification Technologies - DOGGIES

Cited by 2 publications

References 0 publications

Advances in chemical sensing technologies for VOCs in breath for security/threat assessment, illicit drug detection, and human trafficking activity

Advances in chemical sensing technologies for VOCs in breath for security/threat assessment, illicit drug detection, and human trafficking activity

Environmental Gas Sensing with Cavitands

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