Wireless Hazard Badges to Detect Nerve-Agent Simulants
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ANIE-S-16-04880.pdf
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1.3 MB
Format
Adobe PDF
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Author(s)
Zhu, Rong
Azzarelli, Joseph M.
Swager, Timothy M
Date Issued
July 2016
Journal
Angewandte Chemie International Edition
Publisher
Wiley Blackwell
Citation
Zhu, Rong, et al. “Wireless Hazard Badges to Detect Nerve-Agent Simulants.” Angewandte Chemie International Edition, vol. 55, no. 33, Aug. 2016, pp. 9662–66.
Version
Author's final manuscript
Abstract
Human exposure to hazardous chemicals can have adverse short- and long-term health effects. In this Communication, we have developed a single-use wearable hazard badge that dosimetrically detects diethylchlorophosphate (DCP), a model organophosphorous cholinesterase inhibitor simulant. Improved chemically actuated resonant devices (CARDs) are fabricated in a single step and unambiguously relate changes in chemiresistance to a wireless readout. To provide selective and readily manufacturable sensor elements for this platform, we developed an ionic-liquid-mediated single walled carbon nanotube based chemidosimetric scheme with DCP limits of detection of 28 ppb. As a practical demonstration, an 8 h workday time weighted average equivalent exposure of 10 ppb DCP effects an irreversible change in smartphone readout. Keywords: carbon nanotubes; dosimeter; ionic liquids; nerve agents; sensors
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Chemistry
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1002/anie.201604431
