E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure

Abstract In the past 5 years, e-cigarette use has been increasing rapidly, particularly in youth and young adults. Due to the novelty of e-cigarettes (e-cigs) and e-cigarette liquids (e-liquids), research on their chemo-physical properties is still in its infancy. Here, we describe a previously unkn...

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Autores principales:	Eric S. Davis, M. Flori Sassano, Henry Goodell, Robert Tarran
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/803ab25f71f74e81a346b92954c3ce3e
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spelling	oai:doaj.org-article:803ab25f71f74e81a346b92954c3ce3e2021-12-02T11:53:04ZE-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure10.1038/s41598-017-07862-w2045-2322https://doaj.org/article/803ab25f71f74e81a346b92954c3ce3e2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07862-whttps://doaj.org/toc/2045-2322Abstract In the past 5 years, e-cigarette use has been increasing rapidly, particularly in youth and young adults. Due to the novelty of e-cigarettes (e-cigs) and e-cigarette liquids (e-liquids), research on their chemo-physical properties is still in its infancy. Here, we describe a previously unknown and potentially useful property of e-liquids, namely their autofluorescence. We performed an emission scan at 9 excitation wavelengths common to fluorescent microscopy and found (i) that autofluorescence differs widely between e-liquids, (ii) that e-liquids are most fluorescent in the UV range (between 350 and 405 nm) and (iii) fluorescence intensity wanes as the emission wavelength increases. Furthermore, we used the autofluorescence of e-liquids as a marker for tracking e-cig aerosol deposition in the laboratory. Using linear regression analysis, we were able to quantify the deposition of a “vaped” e-liquid onto hard surfaces. Using this technique, we found that every 70 mL puff of an e-cigarette deposited 0.019% e-liquid (v/v) in a controlled environment. Finally, we vaped a surface in the laboratory and used our method to detect e-cig aerosol third-hand exposure. In conclusion, our data suggest that e-cigarette autofluorescence can be used as a marker of e-cigarette deposition.Eric S. DavisM. Flori SassanoHenry GoodellRobert TarranNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Eric S. Davis M. Flori Sassano Henry Goodell Robert Tarran E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure
description	Abstract In the past 5 years, e-cigarette use has been increasing rapidly, particularly in youth and young adults. Due to the novelty of e-cigarettes (e-cigs) and e-cigarette liquids (e-liquids), research on their chemo-physical properties is still in its infancy. Here, we describe a previously unknown and potentially useful property of e-liquids, namely their autofluorescence. We performed an emission scan at 9 excitation wavelengths common to fluorescent microscopy and found (i) that autofluorescence differs widely between e-liquids, (ii) that e-liquids are most fluorescent in the UV range (between 350 and 405 nm) and (iii) fluorescence intensity wanes as the emission wavelength increases. Furthermore, we used the autofluorescence of e-liquids as a marker for tracking e-cig aerosol deposition in the laboratory. Using linear regression analysis, we were able to quantify the deposition of a “vaped” e-liquid onto hard surfaces. Using this technique, we found that every 70 mL puff of an e-cigarette deposited 0.019% e-liquid (v/v) in a controlled environment. Finally, we vaped a surface in the laboratory and used our method to detect e-cig aerosol third-hand exposure. In conclusion, our data suggest that e-cigarette autofluorescence can be used as a marker of e-cigarette deposition.
format	article
author	Eric S. Davis M. Flori Sassano Henry Goodell Robert Tarran
author_facet	Eric S. Davis M. Flori Sassano Henry Goodell Robert Tarran
author_sort	Eric S. Davis
title	E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure
title_short	E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure
title_full	E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure
title_fullStr	E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure
title_full_unstemmed	E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure
title_sort	e-liquid autofluorescence can be used as a marker of vaping deposition and third-hand vape exposure
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/803ab25f71f74e81a346b92954c3ce3e
work_keys_str_mv	AT ericsdavis eliquidautofluorescencecanbeusedasamarkerofvapingdepositionandthirdhandvapeexposure AT mflorisassano eliquidautofluorescencecanbeusedasamarkerofvapingdepositionandthirdhandvapeexposure AT henrygoodell eliquidautofluorescencecanbeusedasamarkerofvapingdepositionandthirdhandvapeexposure AT roberttarran eliquidautofluorescencecanbeusedasamarkerofvapingdepositionandthirdhandvapeexposure
_version_	1718394875189133312

E-Liquid Autofluorescence can be used as a Marker of Vaping Deposition and Third-Hand Vape Exposure

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