Journal
ACS SENSORS
Volume 5, Issue 6, Pages 1831-1837Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.0c00791
Keywords
nicotine monitoring; electrochemical devices; wearable sweat sensors; flexible electronics; nanodendrites; self-assembled monolayer
Funding
- National Science Foundation (NSF) Nanomanufacturing Systems for Mobile Computing and Mobile Energy Technologies (NASCENT)
- Berkeley Sensor and Actuator Center (BSAC)
- Bakar fellowship
- Office of Science, Office of Basic Energy Sciences, Material Sciences and Engineering Division of the U.S. Department of Energy [DE-AC02-05CH11231]
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The tobacco epidemic is a public health threat that has taken a heavy toll of lives around the globe each year. Smoking affects both the smokers and those who are exposed to secondhand smoke, and careful tracking of exposure can be key to mitigating the potential hazards. For smokers, the variation of chemical compositions between commercial cigarettes has led to ambiguity in estimating the health risks, both for active smokers and others involuntarily exposed to tobacco smoke and byproducts. In this regard, sweat possesses an attractive opportunity to monitor smoke exposure due to sweat's abundance in biomolecules and its great accessibility. Here, we present a wearable sweat band to monitor nicotine, a prominent ingredient in cigarettes, as a viable way to quantitatively assess a wearer's exposure to smoking. Both smokers and normal subjects are tested to demonstrate the use of this device for smoke-related health monitoring. Our results exhibit confirmable and elevated nicotine levels in sweat for subjects inhaling cigarette smoke. This continuous and personalized sweat sensing device is leverage to monitor smoke pollution for a potentially broad population.
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