Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals

We studied electrochemical sensors using printed carbon nanotubes (CNT) film on a polyethylene telephtalate (PET) substrate. The mechanical stability of the printed CNT film (PCF) was confirmed by using bending and Scotch tape tests. In order to determine the optimum sensor structure, a resistance-t...

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Detalles Bibliográficos
Autores principales: Noh, Jaeha, An, Sangsu, Lee, Changhan, Chang, Jiho, Lee, Snagtae, Lee, Moonjin, Seo, Dongmin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347534/
https://www.ncbi.nlm.nih.gov/pubmed/34372417
http://dx.doi.org/10.3390/s21155179
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author Noh, Jaeha
An, Sangsu
Lee, Changhan
Chang, Jiho
Lee, Snagtae
Lee, Moonjin
Seo, Dongmin
author_facet Noh, Jaeha
An, Sangsu
Lee, Changhan
Chang, Jiho
Lee, Snagtae
Lee, Moonjin
Seo, Dongmin
author_sort Noh, Jaeha
collection PubMed
description We studied electrochemical sensors using printed carbon nanotubes (CNT) film on a polyethylene telephtalate (PET) substrate. The mechanical stability of the printed CNT film (PCF) was confirmed by using bending and Scotch tape tests. In order to determine the optimum sensor structure, a resistance-type PCF sensor (R-type PCF sensor) and a comb-type PCF sensor (C-type PCF sensor) were fabricated and compared using a diluted NH(3) droplet with various concentrations. The magnitude of response, response time, sensitivity, linearity, and limit of detection (LOD) were compared, and it was concluded that C-type PCF sensor has superior performance. In addition, the feasibility of PCF electrochemical sensor was investigated using 12 kinds of hazardous and noxious substances (HNS). The detection mechanism and selectivity of the PCF sensor are discussed.
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spelling pubmed-83475342021-08-08 Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals Noh, Jaeha An, Sangsu Lee, Changhan Chang, Jiho Lee, Snagtae Lee, Moonjin Seo, Dongmin Sensors (Basel) Communication We studied electrochemical sensors using printed carbon nanotubes (CNT) film on a polyethylene telephtalate (PET) substrate. The mechanical stability of the printed CNT film (PCF) was confirmed by using bending and Scotch tape tests. In order to determine the optimum sensor structure, a resistance-type PCF sensor (R-type PCF sensor) and a comb-type PCF sensor (C-type PCF sensor) were fabricated and compared using a diluted NH(3) droplet with various concentrations. The magnitude of response, response time, sensitivity, linearity, and limit of detection (LOD) were compared, and it was concluded that C-type PCF sensor has superior performance. In addition, the feasibility of PCF electrochemical sensor was investigated using 12 kinds of hazardous and noxious substances (HNS). The detection mechanism and selectivity of the PCF sensor are discussed. MDPI 2021-07-30 /pmc/articles/PMC8347534/ /pubmed/34372417 http://dx.doi.org/10.3390/s21155179 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 Communication
Noh, Jaeha
An, Sangsu
Lee, Changhan
Chang, Jiho
Lee, Snagtae
Lee, Moonjin
Seo, Dongmin
Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals
title Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals
title_full Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals
title_fullStr Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals
title_full_unstemmed Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals
title_short Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals
title_sort investigation on the printed cnt-film-based electrochemical sensor for detection of liquid chemicals
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347534/
https://www.ncbi.nlm.nih.gov/pubmed/34372417
http://dx.doi.org/10.3390/s21155179
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