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

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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Main Authors: Dongqing Xu, Bingbing Hou, Lisheng Qian, Xueji Zhang, Guodong Liu
Format: Article
Language:English
Published: MDPI AG 2019-09-01
Series:Molecules
Subjects:
carbon nanotubes
silver nanoparticles
nonenzymatic
sensor
hydrogen peroxide
Online Access:https://www.mdpi.com/1420-3049/24/18/3411
id doaj-b5f562337d7e4753a0830e044d488862
record_format Article
spelling doaj-b5f562337d7e4753a0830e044d4888622020-11-24T22:14:49ZengMDPI AGMolecules1420-30492019-09-012418341110.3390/molecules24183411molecules24183411Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon NanotubesDongqing Xu0Bingbing Hou1Lisheng Qian2Xueji Zhang3Guodong Liu4Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, Anhui, ChinaInstitute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, Anhui, ChinaInstitute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, Anhui, ChinaInstitute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, Anhui, ChinaInstitute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, Anhui, ChinaThe 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<sub>2</sub>O<sub>2</sub>; 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<sub>2</sub>O<sub>2</sub> with a linear range of 1 to 1000 &#956;M. The detection limit was 0.38 &#956;M (S/N = 3). The sensor was applied to detect H<sub>2</sub>O<sub>2</sub> in spiked human blood serum samples with satisfactory results.https://www.mdpi.com/1420-3049/24/18/3411carbon nanotubessilver nanoparticlesnonenzymaticsensorhydrogen peroxide
collection DOAJ
language English
format Article
sources DOAJ
author Dongqing Xu
Bingbing Hou
Lisheng Qian
Xueji Zhang
Guodong Liu
spellingShingle Dongqing Xu
Bingbing Hou
Lisheng Qian
Xueji Zhang
Guodong Liu
Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes
Molecules
carbon nanotubes
silver nanoparticles
nonenzymatic
sensor
hydrogen peroxide
author_facet Dongqing Xu
Bingbing Hou
Lisheng Qian
Xueji Zhang
Guodong Liu
author_sort Dongqing Xu
title 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_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_sort non-enzymatic electrochemical sensor based on sliver nanoparticle-decorated carbon nanotubes
publisher MDPI AG
series Molecules
issn 1420-3049
publishDate 2019-09-01
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<sub>2</sub>O<sub>2</sub>; 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<sub>2</sub>O<sub>2</sub> with a linear range of 1 to 1000 &#956;M. The detection limit was 0.38 &#956;M (S/N = 3). The sensor was applied to detect H<sub>2</sub>O<sub>2</sub> in spiked human blood serum samples with satisfactory results.
topic carbon nanotubes
silver nanoparticles
nonenzymatic
sensor
hydrogen peroxide
url https://www.mdpi.com/1420-3049/24/18/3411
work_keys_str_mv AT dongqingxu nonenzymaticelectrochemicalsensorbasedonslivernanoparticledecoratedcarbonnanotubes
AT bingbinghou nonenzymaticelectrochemicalsensorbasedonslivernanoparticledecoratedcarbonnanotubes
AT lishengqian nonenzymaticelectrochemicalsensorbasedonslivernanoparticledecoratedcarbonnanotubes
AT xuejizhang nonenzymaticelectrochemicalsensorbasedonslivernanoparticledecoratedcarbonnanotubes
AT guodongliu nonenzymaticelectrochemicalsensorbasedonslivernanoparticledecoratedcarbonnanotubes
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