A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes

A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes

<span style="color: windowtext;">Carbon monoxide (CO) is a commonly poisonous gas. It is important to detect CO in daily life. Herein, a new and sensitive surface enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) coupled di-mode method was developed for CO, bas...

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Main Authors: Dongmei Yao, Guiqing Wen, Lingbo Gong, Chongning Li, Aihui Liang, Zhiliang Jiang
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Nanomaterials
Subjects:
co
nanocatalysis
sers
rrs
coupled di-mode
Online Access:https://www.mdpi.com/2079-4991/10/3/450
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spelling doaj-012900df9d5449e684075b185c1f1e2c2020-11-25T02:57:37ZengMDPI AGNanomaterials2079-49912020-03-0110345010.3390/nano10030450nano10030450A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional ProbesDongmei Yao0Guiqing Wen1Lingbo Gong2Chongning Li3Aihui Liang4Zhiliang Jiang5Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China<span style="color: windowtext;">Carbon monoxide (CO) is a commonly poisonous gas. It is important to detect CO in daily life. Herein, a new and sensitive surface enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) coupled di-mode method was developed for CO, based on gold nano-enzyme catalysis and gold nanoprobes. CO can react with HAuCl<sub>4</sub> to generate gold nanoparticles (AuNPs) in pH 5.2 HAc-NaAc buffer. The generated AuNPs exhibited SERS activity at 1620 cm<sup>-1</sup> in the presence of Vitoria blue B (VBB) molecular probes, and an RRS peak at 290 nm. Based on the AuNP bifunctional probes, the increased SERS and RRS intensities respond linearly with the concentration of CO in the range of 100&#8722;1500 ng/mL and 30&#8722;5230 ng/mL, respectively. To improve the sensitivity, the produced AuNPs were used as nano-enzyme catalysts for the new indicator reaction of HAuCl<sub>4</sub>-ethanol (En) to amplify the signal.<sub> </sub>The sensitive SERS method was coupled with the accurate RRS method to develop a sensitive and accurate SERS/RRS di-mode method for determination of 3.0&#8722;413 ng/mL CO, based on the AuNP-HAuCl<sub>4</sub>-En nanocatalytic reaction and its product of AuNPs as SERS and RRS bifunctional probes.</span>https://www.mdpi.com/2079-4991/10/3/450conanocatalysissersrrscoupled di-mode
collection DOAJ
language English
format Article
sources DOAJ
author Dongmei Yao
Guiqing Wen
Lingbo Gong
Chongning Li
Aihui Liang
Zhiliang Jiang
spellingShingle Dongmei Yao
Guiqing Wen
Lingbo Gong
Chongning Li
Aihui Liang
Zhiliang Jiang
A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes
Nanomaterials
co
nanocatalysis
sers
rrs
coupled di-mode
author_facet Dongmei Yao
Guiqing Wen
Lingbo Gong
Chongning Li
Aihui Liang
Zhiliang Jiang
author_sort Dongmei Yao
title A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes
title_short A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes
title_full A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes
title_fullStr A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes
title_full_unstemmed A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probes
title_sort highly sensitive sers and rrs coupled di-mode method for co detection using nanogolds as catalysts and bifunctional probes
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2020-03-01
description <span style="color: windowtext;">Carbon monoxide (CO) is a commonly poisonous gas. It is important to detect CO in daily life. Herein, a new and sensitive surface enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) coupled di-mode method was developed for CO, based on gold nano-enzyme catalysis and gold nanoprobes. CO can react with HAuCl<sub>4</sub> to generate gold nanoparticles (AuNPs) in pH 5.2 HAc-NaAc buffer. The generated AuNPs exhibited SERS activity at 1620 cm<sup>-1</sup> in the presence of Vitoria blue B (VBB) molecular probes, and an RRS peak at 290 nm. Based on the AuNP bifunctional probes, the increased SERS and RRS intensities respond linearly with the concentration of CO in the range of 100&#8722;1500 ng/mL and 30&#8722;5230 ng/mL, respectively. To improve the sensitivity, the produced AuNPs were used as nano-enzyme catalysts for the new indicator reaction of HAuCl<sub>4</sub>-ethanol (En) to amplify the signal.<sub> </sub>The sensitive SERS method was coupled with the accurate RRS method to develop a sensitive and accurate SERS/RRS di-mode method for determination of 3.0&#8722;413 ng/mL CO, based on the AuNP-HAuCl<sub>4</sub>-En nanocatalytic reaction and its product of AuNPs as SERS and RRS bifunctional probes.</span>
topic co
nanocatalysis
sers
rrs
coupled di-mode
url https://www.mdpi.com/2079-4991/10/3/450
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