A portable explosive detector based on fluorescence quenching of pyrene deposited on coloured wax-printed μpADs

Taudte, RV; Beavis, A; Wilson-Wilde, L; Roux, C; Doble, P; Blanes, L

A portable explosive detector based on fluorescence quenching of pyrene deposited on coloured wax-printed μpADs

Taudte, RV

Beavis, A

Wilson-Wilde, L Roux, C

Doble, P

Blanes, L

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Publication Type:: Journal Article
Citation:: Lab on a Chip, 2013, 13 (21), pp. 4164 - 4172
Issue Date:: 2013-11-07

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Field	Value	Language
dc.contributor.author	Taudte, RV https://orcid.org/0000-0003-4617-6063	en_US
dc.contributor.author	Beavis, A https://orcid.org/0000-0001-6259-7699	en_US
dc.contributor.author	Wilson-Wilde, L	en_US
dc.contributor.author	Roux, C https://orcid.org/0000-0003-3610-420X	en_US
dc.contributor.author	Doble, P https://orcid.org/0000-0002-8472-1301	en_US
dc.contributor.author	Blanes, L	en_US
dc.date.issued	2013-11-07	en_US
dc.identifier.citation	Lab on a Chip, 2013, 13 (21), pp. 4164 - 4172	en_US
dc.identifier.issn	1473-0197	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26455
dc.description.abstract	A new technique for the detection of explosives has been developed based on fluorescence quenching of pyrene on paper-based analytical devices (μPADs). Wax barriers were generated (150 °C, 5 min) using ten different colours. Magenta was found as the most suitable wax colour for the generation of the hydrophobic barriers with a nominal width of 120 μm resulting in fully functioning hydrophobic barriers. One microliter of 0.5 mg mL-1 pyrene dissolved in an 80 : 20 methanol-water solution was deposited on the hydrophobic circle (5 mm diameter) to produce the active microchip device. Under ultra-violet (UV) illumination, ten different organic explosives were detected using the μPAD, with limits of detection ranging from 100-600 ppm. A prototype of a portable battery operated instrument using a 3 W power UV light-emitting-diode (LED) (365 nm) and a photodiode sensor was also built and evaluated for the successful automatic detection of explosives and potential application for field-based screening. © 2013 The Royal Society of Chemistry.	en_US
dc.relation.ispartof	Lab on a Chip	en_US
dc.relation.isbasedon	10.1039/c3lc50609f	en_US
dc.subject.classification	Analytical Chemistry	en_US
dc.title	A portable explosive detector based on fluorescence quenching of pyrene deposited on coloured wax-printed μpADs	en_US
dc.type	Journal Article
utslib.citation.volume	21	en_US
utslib.citation.volume	13	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0399 Other Chemical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
utslib.copyright.status	open_access
pubs.issue	21	en_US
pubs.publication-status	Published	en_US
pubs.volume	13	en_US

Abstract:

A new technique for the detection of explosives has been developed based on fluorescence quenching of pyrene on paper-based analytical devices (μPADs). Wax barriers were generated (150 °C, 5 min) using ten different colours. Magenta was found as the most suitable wax colour for the generation of the hydrophobic barriers with a nominal width of 120 μm resulting in fully functioning hydrophobic barriers. One microliter of 0.5 mg mL-1 pyrene dissolved in an 80 : 20 methanol-water solution was deposited on the hydrophobic circle (5 mm diameter) to produce the active microchip device. Under ultra-violet (UV) illumination, ten different organic explosives were detected using the μPAD, with limits of detection ranging from 100-600 ppm. A prototype of a portable battery operated instrument using a 3 W power UV light-emitting-diode (LED) (365 nm) and a photodiode sensor was also built and evaluated for the successful automatic detection of explosives and potential application for field-based screening. © 2013 The Royal Society of Chemistry.

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http://hdl.handle.net/10453/26455