Cargando…

SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition

The Surface-Enhanced Raman Scattering (SERS) technique is utilized to fabricate sensors for gas detection due to its rapid detection speed and high sensitivity. However, gases with similar molecular structures are difficult to directly discriminate using SERS gas sensors because there are characteri...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Lin, Guo, Hao, Sassa, Fumihiro, Chen, Bin, Hayashi, Kenshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8402296/
https://www.ncbi.nlm.nih.gov/pubmed/34450988
http://dx.doi.org/10.3390/s21165546
_version_ 1783745755820851200
author Chen, Lin
Guo, Hao
Sassa, Fumihiro
Chen, Bin
Hayashi, Kenshi
author_facet Chen, Lin
Guo, Hao
Sassa, Fumihiro
Chen, Bin
Hayashi, Kenshi
author_sort Chen, Lin
collection PubMed
description The Surface-Enhanced Raman Scattering (SERS) technique is utilized to fabricate sensors for gas detection due to its rapid detection speed and high sensitivity. However, gases with similar molecular structures are difficult to directly discriminate using SERS gas sensors because there are characteristic peak overlaps in the Raman spectra. Here, we proposed a multiple SERS gas sensor matrix via a spin-coating functional polymer to enhance the gas recognition capability. Poly (acrylic acid) (PAA), Poly (methyl methacrylate) (PMMA) and Polydimethylsiloxane (PDMS) were employed to fabricate the polymer film. The high design flexibility of the two-layer film was realized by the layer-by-layer method with 2 one-layer films. The SERS gas sensor coated by different polymer films showed a distinct affinity to target gases. The principle component analysis (PCA) algorithm was used for the further clustering of gas molecules. Three target gases, phenethyl alcohol, acetophenone and anethole, were perfectly discriminated, as the characteristic variables in the response matrix constructed by the combination of gas responses obtained 3 one-layer and 3 two-layer film-coated sensors. This research provides a new SERS sensing approach for recognizing gases with similar molecular structures.
format Online
Article
Text
id pubmed-8402296
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-84022962021-08-29 SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition Chen, Lin Guo, Hao Sassa, Fumihiro Chen, Bin Hayashi, Kenshi Sensors (Basel) Article The Surface-Enhanced Raman Scattering (SERS) technique is utilized to fabricate sensors for gas detection due to its rapid detection speed and high sensitivity. However, gases with similar molecular structures are difficult to directly discriminate using SERS gas sensors because there are characteristic peak overlaps in the Raman spectra. Here, we proposed a multiple SERS gas sensor matrix via a spin-coating functional polymer to enhance the gas recognition capability. Poly (acrylic acid) (PAA), Poly (methyl methacrylate) (PMMA) and Polydimethylsiloxane (PDMS) were employed to fabricate the polymer film. The high design flexibility of the two-layer film was realized by the layer-by-layer method with 2 one-layer films. The SERS gas sensor coated by different polymer films showed a distinct affinity to target gases. The principle component analysis (PCA) algorithm was used for the further clustering of gas molecules. Three target gases, phenethyl alcohol, acetophenone and anethole, were perfectly discriminated, as the characteristic variables in the response matrix constructed by the combination of gas responses obtained 3 one-layer and 3 two-layer film-coated sensors. This research provides a new SERS sensing approach for recognizing gases with similar molecular structures. MDPI 2021-08-18 /pmc/articles/PMC8402296/ /pubmed/34450988 http://dx.doi.org/10.3390/s21165546 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Lin
Guo, Hao
Sassa, Fumihiro
Chen, Bin
Hayashi, Kenshi
SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition
title SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition
title_full SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition
title_fullStr SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition
title_full_unstemmed SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition
title_short SERS Gas Sensors Based on Multiple Polymer Films with High Design Flexibility for Gas Recognition
title_sort sers gas sensors based on multiple polymer films with high design flexibility for gas recognition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8402296/
https://www.ncbi.nlm.nih.gov/pubmed/34450988
http://dx.doi.org/10.3390/s21165546
work_keys_str_mv AT chenlin sersgassensorsbasedonmultiplepolymerfilmswithhighdesignflexibilityforgasrecognition
AT guohao sersgassensorsbasedonmultiplepolymerfilmswithhighdesignflexibilityforgasrecognition
AT sassafumihiro sersgassensorsbasedonmultiplepolymerfilmswithhighdesignflexibilityforgasrecognition
AT chenbin sersgassensorsbasedonmultiplepolymerfilmswithhighdesignflexibilityforgasrecognition
AT hayashikenshi sersgassensorsbasedonmultiplepolymerfilmswithhighdesignflexibilityforgasrecognition