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Wireless Hazard Badges to Detect Nerve‐Agent Simulants
Author(s) -
Zhu Rong,
Azzarelli Joseph M.,
Swager Timothy M.
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201604431
Subject(s) - hazardous waste , wireless , wearable computer , health hazard , nerve agent , hazard , computer science , ionic liquid , materials science , embedded system , chemistry , telecommunications , engineering , medicine , waste management , environmental health , organic chemistry , biochemistry , enzyme , acetylcholinesterase , catalysis
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.