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基于铜纳米粒子修饰的一次性铅笔石墨电极的非酶葡萄糖传感器。

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

机构信息

Department of Chemistry, Payame Noor University, Tehran, Iran.

出版信息

J Food Drug Anal. 2016 Oct;24(4):894-902. doi: 10.1016/j.jfda.2016.02.010. Epub 2016 Apr 22.

DOI:10.1016/j.jfda.2016.02.010
PMID:28911630
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9337299/
Abstract

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. 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]. 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.

摘要

首次制备了一种基于铜纳米粒子[Cu(NP)]修饰的一次性铅笔石墨电极(PGE)的非酶葡萄糖传感器。使用紫外-可见分光光度法，Cu(NP)表现出一个位于约 562nm 的吸收峰，通过扫描电子显微镜观察到几乎均匀的球形形状。Cu(NP)-PGE 的循环伏安法显示出吸附控制的电荷转移过程，最高可达 90.0mVs。该传感器使用电流测定技术对葡萄糖进行测定，检测限为[0.44(±0.01)μM]，浓度灵敏度为[1467.5(±1.3)μA/mMcm]。Cu(NP)-PGE 传感器的制备具有可重复性(相对标准偏差=2.10%，n=10)，非常简单、快速且廉价，并且 Cu(NP)-PGE 适合用作一次性葡萄糖传感器。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/0ad4b8b1ecdf/jfda-24-04-894f10.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/4e918dfc451d/jfda-24-04-894f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/336484e06a14/jfda-24-04-894f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/57ab2312f986/jfda-24-04-894f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/9e0c24470855/jfda-24-04-894f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/aeace90b4377/jfda-24-04-894f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/0ad4b8b1ecdf/jfda-24-04-894f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/2c8097377388/jfda-24-04-894f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/7da9d7fa3921/jfda-24-04-894f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/c853dea8832c/jfda-24-04-894f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/62d1bba98aff/jfda-24-04-894f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/4e918dfc451d/jfda-24-04-894f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/336484e06a14/jfda-24-04-894f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/57ab2312f986/jfda-24-04-894f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/9e0c24470855/jfda-24-04-894f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/aeace90b4377/jfda-24-04-894f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c6e/9337299/0ad4b8b1ecdf/jfda-24-04-894f10.jpg

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