Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles

A nonenzymatic glucose sensor based on a disposable pencil graphite electrode (PGE) modified by copper nanoparticles [Cu(NP)] was prepared for the first time. The prepared Cu(NP) exhibited an absorption peak centered at ~562 nm using UV-visible spectrophotometry and an almost homogenous spherical sh...

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Autores principales: Pourbeyram, Sima, Mehdizadeh, Khadijeh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taiwan Food and Drug Administration 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9337299/
https://www.ncbi.nlm.nih.gov/pubmed/28911630
http://dx.doi.org/10.1016/j.jfda.2016.02.010
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author Pourbeyram, Sima
Mehdizadeh, Khadijeh
author_facet Pourbeyram, Sima
Mehdizadeh, Khadijeh
author_sort Pourbeyram, Sima
collection PubMed
description A nonenzymatic glucose sensor based on a disposable pencil graphite electrode (PGE) modified by copper nanoparticles [Cu(NP)] was prepared for the first time. The prepared Cu(NP) exhibited an absorption peak centered at ~562 nm using UV-visible spectrophotometry and an almost homogenous spherical shape by scanning electron microscopy. Cyclic voltammetry of Cu(NP)-PGE showed an adsorption controlled charge transfer process up to 90.0 mVs(−1). The sensor was applied for the determination of glucose using an amperometry technique with a detection limit of [0.44 (±0.01) μM] and concentration sensitivity of [1467.5 (±1.3) μA/mMcm(−2)]. The preparation of the Cu(NP)-PGE sensor was reproducible (relative standard deviation = 2.10%, n = 10), very simple, fast, and inexpensive, and the Cu(NP)-PGE is suitable to be used as a disposable glucose sensor.
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spelling pubmed-93372992022-08-09 Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles Pourbeyram, Sima Mehdizadeh, Khadijeh J Food Drug Anal Original Article A nonenzymatic glucose sensor based on a disposable pencil graphite electrode (PGE) modified by copper nanoparticles [Cu(NP)] was prepared for the first time. The prepared Cu(NP) exhibited an absorption peak centered at ~562 nm using UV-visible spectrophotometry and an almost homogenous spherical shape by scanning electron microscopy. Cyclic voltammetry of Cu(NP)-PGE showed an adsorption controlled charge transfer process up to 90.0 mVs(−1). The sensor was applied for the determination of glucose using an amperometry technique with a detection limit of [0.44 (±0.01) μM] and concentration sensitivity of [1467.5 (±1.3) μA/mMcm(−2)]. The preparation of the Cu(NP)-PGE sensor was reproducible (relative standard deviation = 2.10%, n = 10), very simple, fast, and inexpensive, and the Cu(NP)-PGE is suitable to be used as a disposable glucose sensor. Taiwan Food and Drug Administration 2016-04-22 /pmc/articles/PMC9337299/ /pubmed/28911630 http://dx.doi.org/10.1016/j.jfda.2016.02.010 Text en © 2016 Taiwan Food and Drug Administration https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) ).
spellingShingle Original Article
Pourbeyram, Sima
Mehdizadeh, Khadijeh
Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles
title Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles
title_full Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles
title_fullStr Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles
title_full_unstemmed Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles
title_short Nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles
title_sort nonenzymatic glucose sensor based on disposable pencil graphite electrode modified by copper nanoparticles
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9337299/
https://www.ncbi.nlm.nih.gov/pubmed/28911630
http://dx.doi.org/10.1016/j.jfda.2016.02.010
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