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Printed Combinatorial Sensors for Simultaneous Detection of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite
[Image: see text] In this study, an effective and simple direct printing method was developed to create sensing devices on screen-printed carbon electrodes (SPCEs) to detect multiple species simultaneously. Two sensing materials, graphene oxide nanoribbons (GONRs) and poly(3,4-ethylenedioxythiophene...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6044958/ https://www.ncbi.nlm.nih.gov/pubmed/30023719 http://dx.doi.org/10.1021/acsomega.7b00681 |
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author | Su, Chun-Hao Sun, Chia-Liang Liao, Ying-Chih |
author_facet | Su, Chun-Hao Sun, Chia-Liang Liao, Ying-Chih |
author_sort | Su, Chun-Hao |
collection | PubMed |
description | [Image: see text] In this study, an effective and simple direct printing method was developed to create sensing devices on screen-printed carbon electrodes (SPCEs) to detect multiple species simultaneously. Two sensing materials, graphene oxide nanoribbons (GONRs) and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), were printed on one SPCE for detection of multiple biochemical substances. Printed layers of the GONRs and PEDOT:PSS mixture (GONRs & PEDOT:PSS) on SPCE showed embedment of GONRs in the PEDOT:PSS layer and diminished the electrochemical activity of GONRs. In contrast, by printing the GONRs and PEDOT:PSS at separate locations (GONRs + PEDOT:PSS) on the same SPCE, the electrochemical activities of both GONRs and PEDOT:PSS can be preserved. Thus, without synthesizing new materials, the modified electrode is able to simultaneously detect ascorbic acid (AA), uric acid (UA), dopamine (DA), and nitrite (NO(2)(–)), with high anodic oxidation currents and well-separated voltammetric peaks, in differential pulse voltammetry measurements. The detection limits for the four analytes are 41 nM (AA), 30 nM (DA), 11 nM (UA), and 18 nM (NO(2)(–)), respectively. The electrode can either detect single species separately or simultaneously determine specific concentrations of the four species in aqueous mixtures, and this can be further extended for many other electrochemical sensing applications. |
format | Online Article Text |
id | pubmed-6044958 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-60449582018-07-16 Printed Combinatorial Sensors for Simultaneous Detection of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite Su, Chun-Hao Sun, Chia-Liang Liao, Ying-Chih ACS Omega [Image: see text] In this study, an effective and simple direct printing method was developed to create sensing devices on screen-printed carbon electrodes (SPCEs) to detect multiple species simultaneously. Two sensing materials, graphene oxide nanoribbons (GONRs) and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), were printed on one SPCE for detection of multiple biochemical substances. Printed layers of the GONRs and PEDOT:PSS mixture (GONRs & PEDOT:PSS) on SPCE showed embedment of GONRs in the PEDOT:PSS layer and diminished the electrochemical activity of GONRs. In contrast, by printing the GONRs and PEDOT:PSS at separate locations (GONRs + PEDOT:PSS) on the same SPCE, the electrochemical activities of both GONRs and PEDOT:PSS can be preserved. Thus, without synthesizing new materials, the modified electrode is able to simultaneously detect ascorbic acid (AA), uric acid (UA), dopamine (DA), and nitrite (NO(2)(–)), with high anodic oxidation currents and well-separated voltammetric peaks, in differential pulse voltammetry measurements. The detection limits for the four analytes are 41 nM (AA), 30 nM (DA), 11 nM (UA), and 18 nM (NO(2)(–)), respectively. The electrode can either detect single species separately or simultaneously determine specific concentrations of the four species in aqueous mixtures, and this can be further extended for many other electrochemical sensing applications. American Chemical Society 2017-08-04 /pmc/articles/PMC6044958/ /pubmed/30023719 http://dx.doi.org/10.1021/acsomega.7b00681 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Su, Chun-Hao Sun, Chia-Liang Liao, Ying-Chih Printed Combinatorial Sensors for Simultaneous Detection of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite |
title | Printed Combinatorial Sensors for Simultaneous Detection
of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite |
title_full | Printed Combinatorial Sensors for Simultaneous Detection
of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite |
title_fullStr | Printed Combinatorial Sensors for Simultaneous Detection
of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite |
title_full_unstemmed | Printed Combinatorial Sensors for Simultaneous Detection
of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite |
title_short | Printed Combinatorial Sensors for Simultaneous Detection
of Ascorbic Acid, Uric Acid, Dopamine, and Nitrite |
title_sort | printed combinatorial sensors for simultaneous detection
of ascorbic acid, uric acid, dopamine, and nitrite |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6044958/ https://www.ncbi.nlm.nih.gov/pubmed/30023719 http://dx.doi.org/10.1021/acsomega.7b00681 |
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