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Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes

The authors report a non-enzymatic electrochemical sensor based on a sliver nanoparticle-decorated carbon nanotube (AgNPs-MWCNT). Highly-dispersed AgNPs were loaded on the MWCNT surface though a simple and facile two-step method. The morphology, components, and the size of the AgNPs-MWCNT nanocompos...

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Detalles Bibliográficos
Autores principales: Xu, Dongqing, Hou, Bingbing, Qian, Lisheng, Zhang, Xueji, Liu, Guodong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6766966/
https://www.ncbi.nlm.nih.gov/pubmed/31546874
http://dx.doi.org/10.3390/molecules24183411
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author Xu, Dongqing
Hou, Bingbing
Qian, Lisheng
Zhang, Xueji
Liu, Guodong
author_facet Xu, Dongqing
Hou, Bingbing
Qian, Lisheng
Zhang, Xueji
Liu, Guodong
author_sort Xu, Dongqing
collection PubMed
description The authors report a non-enzymatic electrochemical sensor based on a sliver nanoparticle-decorated carbon nanotube (AgNPs-MWCNT). Highly-dispersed AgNPs were loaded on the MWCNT surface though a simple and facile two-step method. The morphology, components, and the size of the AgNPs-MWCNT nanocomposite were characterized by transmission electron microscopy, X-ray diffraction, and ICP analysis. Benefitting from the synergistic effect between the AgNPs and MWCNT, the AgNPs-MWCNT nanocomposite exhibited high electrocatalytic activity for H(2)O(2); the AgNPs-MWCNT electrochemical sensor was prepared by coating the AgNPs-MWCNT nanocomposite on a glassy carbon electrode, and it showed a fast and sensitive response to H(2)O(2) with a linear range of 1 to 1000 μM. The detection limit was 0.38 μM (S/N = 3). The sensor was applied to detect H(2)O(2) in spiked human blood serum samples with satisfactory results.
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spelling pubmed-67669662019-10-02 Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes Xu, Dongqing Hou, Bingbing Qian, Lisheng Zhang, Xueji Liu, Guodong Molecules Article The authors report a non-enzymatic electrochemical sensor based on a sliver nanoparticle-decorated carbon nanotube (AgNPs-MWCNT). Highly-dispersed AgNPs were loaded on the MWCNT surface though a simple and facile two-step method. The morphology, components, and the size of the AgNPs-MWCNT nanocomposite were characterized by transmission electron microscopy, X-ray diffraction, and ICP analysis. Benefitting from the synergistic effect between the AgNPs and MWCNT, the AgNPs-MWCNT nanocomposite exhibited high electrocatalytic activity for H(2)O(2); the AgNPs-MWCNT electrochemical sensor was prepared by coating the AgNPs-MWCNT nanocomposite on a glassy carbon electrode, and it showed a fast and sensitive response to H(2)O(2) with a linear range of 1 to 1000 μM. The detection limit was 0.38 μM (S/N = 3). The sensor was applied to detect H(2)O(2) in spiked human blood serum samples with satisfactory results. MDPI 2019-09-19 /pmc/articles/PMC6766966/ /pubmed/31546874 http://dx.doi.org/10.3390/molecules24183411 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xu, Dongqing
Hou, Bingbing
Qian, Lisheng
Zhang, Xueji
Liu, Guodong
Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes
title Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes
title_full Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes
title_fullStr Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes
title_full_unstemmed Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes
title_short Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes
title_sort non-enzymatic electrochemical sensor based on sliver nanoparticle-decorated carbon nanotubes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6766966/
https://www.ncbi.nlm.nih.gov/pubmed/31546874
http://dx.doi.org/10.3390/molecules24183411
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