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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Taiwan Food and Drug Administration
2016
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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. |
format | Online Article Text |
id | pubmed-9337299 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Taiwan Food and Drug Administration |
record_format | MEDLINE/PubMed |
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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