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The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode

In this work, a sensitive and novel method for determining uric acid (UA) has been developed, in which the glassy carbon electrode (GCE) was modified with electrodeposition Au nanoparticles and used to monitor the concentration of UA with the assistant of visible light illumination. The morphology o...

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Autores principales: Shi, Yuting, Wang, Jin, Li, Shumin, Yan, Bo, Xu, Hui, Zhang, Ke, Du, Yukou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509567/
https://www.ncbi.nlm.nih.gov/pubmed/28709376
http://dx.doi.org/10.1186/s11671-017-2225-3
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author Shi, Yuting
Wang, Jin
Li, Shumin
Yan, Bo
Xu, Hui
Zhang, Ke
Du, Yukou
author_facet Shi, Yuting
Wang, Jin
Li, Shumin
Yan, Bo
Xu, Hui
Zhang, Ke
Du, Yukou
author_sort Shi, Yuting
collection PubMed
description In this work, a sensitive and novel method for determining uric acid (UA) has been developed, in which the glassy carbon electrode (GCE) was modified with electrodeposition Au nanoparticles and used to monitor the concentration of UA with the assistant of visible light illumination. The morphology of the Au nanoparticles deposited on GCE surface were characterized by scanning electron microscope (SEM) and the nanoparticles were found to be well-dispersed spheres with the average diameter approaching 26.1 nm. A series of cyclic voltammetry (CV) and differential pulse voltammetry (DPV) measurements have revealed that the introduction of visible light can greatly enhance both the strength and stability of response current due to the surface plasmon resonance (SPR). Specifically, the DPV showed a linear relationship between peak current and UA concentration in the range of 2.8 to 57.5 μM with the equation of I (pa) (μA) = 0.0121c (UA) (μM) + 0.3122 (R (2) = 0.9987). Herein, the visible light illuminated Au/GCE possesses a potential to be a sensitive electrochemical sensor in the future. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s11671-017-2225-3) contains supplementary material, which is available to authorized users.
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spelling pubmed-55095672017-07-31 The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode Shi, Yuting Wang, Jin Li, Shumin Yan, Bo Xu, Hui Zhang, Ke Du, Yukou Nanoscale Res Lett Nano Express In this work, a sensitive and novel method for determining uric acid (UA) has been developed, in which the glassy carbon electrode (GCE) was modified with electrodeposition Au nanoparticles and used to monitor the concentration of UA with the assistant of visible light illumination. The morphology of the Au nanoparticles deposited on GCE surface were characterized by scanning electron microscope (SEM) and the nanoparticles were found to be well-dispersed spheres with the average diameter approaching 26.1 nm. A series of cyclic voltammetry (CV) and differential pulse voltammetry (DPV) measurements have revealed that the introduction of visible light can greatly enhance both the strength and stability of response current due to the surface plasmon resonance (SPR). Specifically, the DPV showed a linear relationship between peak current and UA concentration in the range of 2.8 to 57.5 μM with the equation of I (pa) (μA) = 0.0121c (UA) (μM) + 0.3122 (R (2) = 0.9987). Herein, the visible light illuminated Au/GCE possesses a potential to be a sensitive electrochemical sensor in the future. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s11671-017-2225-3) contains supplementary material, which is available to authorized users. Springer US 2017-07-14 /pmc/articles/PMC5509567/ /pubmed/28709376 http://dx.doi.org/10.1186/s11671-017-2225-3 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Shi, Yuting
Wang, Jin
Li, Shumin
Yan, Bo
Xu, Hui
Zhang, Ke
Du, Yukou
The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode
title The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode
title_full The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode
title_fullStr The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode
title_full_unstemmed The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode
title_short The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon Electrode
title_sort enhanced photo-electrochemical detection of uric acid on au nanoparticles modified glassy carbon electrode
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509567/
https://www.ncbi.nlm.nih.gov/pubmed/28709376
http://dx.doi.org/10.1186/s11671-017-2225-3
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