Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring

Abstract Carbon dioxide (CO2) has been linked to many deleterious health effects, and it has also been used as a proxy for building occupancy measurements. These applications have created a need for low-cost and low-power CO2 sensors that can be seamlessly incorporated into existing buildings. We re...

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Autores principales:	Zachary A. Siefker, John N. Hodul, Xikang Zhao, Nikhil Bajaj, Kelly M. Brayton, Carsten Flores-Hansen, Wenchao Zhao, George T.-C. Chiu, James E. Braun, Jeffrey F. Rhoads, Bryan W. Boudouris
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8d2d67bd21204a0ea57a4c05ebb9d854
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spelling	oai:doaj.org-article:8d2d67bd21204a0ea57a4c05ebb9d8542021-12-02T18:02:54ZManipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring10.1038/s41598-021-92181-42045-2322https://doaj.org/article/8d2d67bd21204a0ea57a4c05ebb9d8542021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92181-4https://doaj.org/toc/2045-2322Abstract Carbon dioxide (CO2) has been linked to many deleterious health effects, and it has also been used as a proxy for building occupancy measurements. These applications have created a need for low-cost and low-power CO2 sensors that can be seamlessly incorporated into existing buildings. We report a resonant mass sensor coated with a solution-processable polymer blend of poly(ethylene oxide) (PEO) and poly(ethyleneimine) (PEI) for the detection of CO2 across multiple use conditions. Controlling the polymer blend composition and nanostructure enabled better transport of the analyte gas into the sensing layer, which allowed for significantly enhanced CO2 sensing relative to the state of the art. Moreover, the hydrophilic nature of PEO resulted in water uptake, which provided for higher sensing sensitivity at elevated humidity conditions. Therefore, this key integration of materials and resonant sensor platform could be a potential solution in the future for CO2 monitoring in smart infrastructure.Zachary A. SiefkerJohn N. HodulXikang ZhaoNikhil BajajKelly M. BraytonCarsten Flores-HansenWenchao ZhaoGeorge T.-C. ChiuJames E. BraunJeffrey F. RhoadsBryan W. BoudourisNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zachary A. Siefker John N. Hodul Xikang Zhao Nikhil Bajaj Kelly M. Brayton Carsten Flores-Hansen Wenchao Zhao George T.-C. Chiu James E. Braun Jeffrey F. Rhoads Bryan W. Boudouris Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring
description	Abstract Carbon dioxide (CO2) has been linked to many deleterious health effects, and it has also been used as a proxy for building occupancy measurements. These applications have created a need for low-cost and low-power CO2 sensors that can be seamlessly incorporated into existing buildings. We report a resonant mass sensor coated with a solution-processable polymer blend of poly(ethylene oxide) (PEO) and poly(ethyleneimine) (PEI) for the detection of CO2 across multiple use conditions. Controlling the polymer blend composition and nanostructure enabled better transport of the analyte gas into the sensing layer, which allowed for significantly enhanced CO2 sensing relative to the state of the art. Moreover, the hydrophilic nature of PEO resulted in water uptake, which provided for higher sensing sensitivity at elevated humidity conditions. Therefore, this key integration of materials and resonant sensor platform could be a potential solution in the future for CO2 monitoring in smart infrastructure.
format	article
author	Zachary A. Siefker John N. Hodul Xikang Zhao Nikhil Bajaj Kelly M. Brayton Carsten Flores-Hansen Wenchao Zhao George T.-C. Chiu James E. Braun Jeffrey F. Rhoads Bryan W. Boudouris
author_facet	Zachary A. Siefker John N. Hodul Xikang Zhao Nikhil Bajaj Kelly M. Brayton Carsten Flores-Hansen Wenchao Zhao George T.-C. Chiu James E. Braun Jeffrey F. Rhoads Bryan W. Boudouris
author_sort	Zachary A. Siefker
title	Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring
title_short	Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring
title_full	Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring
title_fullStr	Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring
title_full_unstemmed	Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring
title_sort	manipulating polymer composition to create low-cost, high-fidelity sensors for indoor co2 monitoring
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8d2d67bd21204a0ea57a4c05ebb9d854
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Manipulating polymer composition to create low-cost, high-fidelity sensors for indoor CO2 monitoring

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