All villi-like metal oxide nanostructures-based chemiresistive electronic nose for an exhaled breath analyzer

Hi Gyu Moon; Youngmo Jung; Soo Deok Han; Young Seok Shim; Woo Suk Jung; Taikjin Lee; Seok Lee; Jung Han Park; Seung Hyub Baek; Jin Sang Kim; Hyung Ho Park; Chulki Kim; Chong Yun Kang

doi:10.1016/j.snb.2017.10.153

All villi-like metal oxide nanostructures-based chemiresistive electronic nose for an exhaled breath analyzer

Hi Gyu Moon, Youngmo Jung, Soo Deok Han, Young Seok Shim, Woo Suk Jung, Taikjin Lee, Seok Lee, Jung Han Park, Seung Hyub Baek, Jin Sang Kim, Hyung Ho Park, Chulki Kim, Chong Yun Kang

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

Chemiresistive electronic nose (CEN) composed of villi-like nanostructures (VLNs) of SnO₂ and WO₃, and Au-functionalized VLNs was fabricated by applying electron-beam evaporation in a glancing angle deposition mode. The VLNs-based CEN with a back-heater (212 °C) shows high responses with low detection limits of parts per billion (ppb)-levels for NO and NH₃ vapors at 80% relative humidity atmosphere. The enhanced sensitivities in a high humidity condition turn out to be attributed to the spillover effect by the Au nanoparticles and a large surface-to-volume ratio in porous VLNs. Employing Au NPs on VLNs leads to the increase of O⁻ ions via the spillover effect which impedes the adsorption of water molecules, maintaining the enhanced responses against environmental humidity. Consequently, high responses for NO and NH₃ vapors maintain even in the high humidity condition. Herein, with the principal component analysis (PCA), we demonstrate highly selective detection of NO and NH₃ vapors against C₂H₅OH, CO, C₇H₈, C6H6, and CH₃COCH₃ vapors. These results open up wide applications of the VLNs-based CEN as an inexpensive and non-invasive diagnostic tool for asthma and kidney disorder.

Original language	English
Pages (from-to)	295-302
Number of pages	8
Journal	Sensors and Actuators, B: Chemical
Volume	257
DOIs	https://doi.org/10.1016/j.snb.2017.10.153
Publication status	Published - 2018 Mar

Bibliographical note

Funding Information:
This work was partly supported by the KIST Institutional Program (Project No. 2E27270), Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korea government (MSIP) (No. R0126-17-1050 , Olfactory Bio Data based Emotion Enhancement Interactive Content Technology Development), the Global Top Project funded by the Korea Ministry of Environment ( GT-11-F-02-002-1 ), and the Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20162220100150 ). Appendix A

Publisher Copyright:
© 2017 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2017.10.153

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@article{bd40f8a0adcd484da86fc708720f7105,

title = "All villi-like metal oxide nanostructures-based chemiresistive electronic nose for an exhaled breath analyzer",

abstract = "Chemiresistive electronic nose (CEN) composed of villi-like nanostructures (VLNs) of SnO2 and WO3, and Au-functionalized VLNs was fabricated by applying electron-beam evaporation in a glancing angle deposition mode. The VLNs-based CEN with a back-heater (212 °C) shows high responses with low detection limits of parts per billion (ppb)-levels for NO and NH3 vapors at 80% relative humidity atmosphere. The enhanced sensitivities in a high humidity condition turn out to be attributed to the spillover effect by the Au nanoparticles and a large surface-to-volume ratio in porous VLNs. Employing Au NPs on VLNs leads to the increase of O− ions via the spillover effect which impedes the adsorption of water molecules, maintaining the enhanced responses against environmental humidity. Consequently, high responses for NO and NH3 vapors maintain even in the high humidity condition. Herein, with the principal component analysis (PCA), we demonstrate highly selective detection of NO and NH3 vapors against C2H5OH, CO, C7H8, C6H6, and CH3COCH3 vapors. These results open up wide applications of the VLNs-based CEN as an inexpensive and non-invasive diagnostic tool for asthma and kidney disorder.",

author = "Moon, {Hi Gyu} and Youngmo Jung and Han, {Soo Deok} and Shim, {Young Seok} and Jung, {Woo Suk} and Taikjin Lee and Seok Lee and Park, {Jung Han} and Baek, {Seung Hyub} and Kim, {Jin Sang} and Park, {Hyung Ho} and Chulki Kim and Kang, {Chong Yun}",

note = "Funding Information: This work was partly supported by the KIST Institutional Program (Project No. 2E27270), Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korea government (MSIP) (No. R0126-17-1050 , Olfactory Bio Data based Emotion Enhancement Interactive Content Technology Development), the Global Top Project funded by the Korea Ministry of Environment ( GT-11-F-02-002-1 ), and the Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20162220100150 ). Appendix A Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = mar,

doi = "10.1016/j.snb.2017.10.153",

language = "English",

volume = "257",

pages = "295--302",

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T1 - All villi-like metal oxide nanostructures-based chemiresistive electronic nose for an exhaled breath analyzer

AU - Moon, Hi Gyu

AU - Jung, Youngmo

AU - Han, Soo Deok

AU - Shim, Young Seok

AU - Jung, Woo Suk

AU - Lee, Taikjin

AU - Lee, Seok

AU - Park, Jung Han

AU - Baek, Seung Hyub

AU - Kim, Jin Sang

AU - Park, Hyung Ho

AU - Kim, Chulki

AU - Kang, Chong Yun

N1 - Funding Information: This work was partly supported by the KIST Institutional Program (Project No. 2E27270), Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korea government (MSIP) (No. R0126-17-1050 , Olfactory Bio Data based Emotion Enhancement Interactive Content Technology Development), the Global Top Project funded by the Korea Ministry of Environment ( GT-11-F-02-002-1 ), and the Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20162220100150 ). Appendix A Publisher Copyright: © 2017 Elsevier B.V.

PY - 2018/3

Y1 - 2018/3

N2 - Chemiresistive electronic nose (CEN) composed of villi-like nanostructures (VLNs) of SnO2 and WO3, and Au-functionalized VLNs was fabricated by applying electron-beam evaporation in a glancing angle deposition mode. The VLNs-based CEN with a back-heater (212 °C) shows high responses with low detection limits of parts per billion (ppb)-levels for NO and NH3 vapors at 80% relative humidity atmosphere. The enhanced sensitivities in a high humidity condition turn out to be attributed to the spillover effect by the Au nanoparticles and a large surface-to-volume ratio in porous VLNs. Employing Au NPs on VLNs leads to the increase of O− ions via the spillover effect which impedes the adsorption of water molecules, maintaining the enhanced responses against environmental humidity. Consequently, high responses for NO and NH3 vapors maintain even in the high humidity condition. Herein, with the principal component analysis (PCA), we demonstrate highly selective detection of NO and NH3 vapors against C2H5OH, CO, C7H8, C6H6, and CH3COCH3 vapors. These results open up wide applications of the VLNs-based CEN as an inexpensive and non-invasive diagnostic tool for asthma and kidney disorder.

AB - Chemiresistive electronic nose (CEN) composed of villi-like nanostructures (VLNs) of SnO2 and WO3, and Au-functionalized VLNs was fabricated by applying electron-beam evaporation in a glancing angle deposition mode. The VLNs-based CEN with a back-heater (212 °C) shows high responses with low detection limits of parts per billion (ppb)-levels for NO and NH3 vapors at 80% relative humidity atmosphere. The enhanced sensitivities in a high humidity condition turn out to be attributed to the spillover effect by the Au nanoparticles and a large surface-to-volume ratio in porous VLNs. Employing Au NPs on VLNs leads to the increase of O− ions via the spillover effect which impedes the adsorption of water molecules, maintaining the enhanced responses against environmental humidity. Consequently, high responses for NO and NH3 vapors maintain even in the high humidity condition. Herein, with the principal component analysis (PCA), we demonstrate highly selective detection of NO and NH3 vapors against C2H5OH, CO, C7H8, C6H6, and CH3COCH3 vapors. These results open up wide applications of the VLNs-based CEN as an inexpensive and non-invasive diagnostic tool for asthma and kidney disorder.

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JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

ER -

All villi-like metal oxide nanostructures-based chemiresistive electronic nose for an exhaled breath analyzer

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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