A selective dopamine biosensor based on AgCl@polyaniline core-shell nanocomposites

Wei Yan; Xiaomiao Feng; Xiaojun Chen; Xinghua Li; Jun Jie Zhu

doi:10.1016/j.bioelechem.2007.07.003

A selective dopamine biosensor based on AgCl@polyaniline core-shell nanocomposites

Wei Yan, Xiaomiao Feng, Xiaojun Chen, Xinghua Li, Jun Jie Zhu

Nanjing University

科研成果: 期刊稿件 › 文章 › 同行评审

65 引用（Scopus）

摘要

Silver chloride@polyaniline (PANI) core-shell (AgCl@PANI) nanocomposites were synthesized in the presence of polyvinylpyrrolidone (PVP). The obtained AgCl@PANI nanocomposites could be easily dispersed in aqueous media, which overcame the processible issues of PANI. Moreover, the nanocomposites showed excellent electrochemical behavior at pH neutral environment, and had inhibitive effect on oxidation of ascorbic acid. Fourier transform infrared spectrophotometry (FTIR) confirmed the existence of PVP in the nanocomposites. The C = O group of PVP is easy to form hydrogen bonding with the hydroxyl group of ascorbic acid, which can prevent ascorbic acid from oxidization. A selective dopamine biosensor was constructed based on the particular characteristic of the AgCl@PANI nanocomposites by the simple drop-coating. The biosensor could detect dopamine at its very low concentration in the presence of 5000 time concentration of ascorbic acid at neutral environment.

源语言	英语
页（从-至）	21-27
页数	7
期刊	Bioelectrochemistry
卷	72
期	1
DOI	https://doi.org/10.1016/j.bioelechem.2007.07.003
出版状态	已出版 - 2月 2008
已对外发布	是

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title = "A selective dopamine biosensor based on AgCl@polyaniline core-shell nanocomposites",

abstract = "Silver chloride@polyaniline (PANI) core-shell (AgCl@PANI) nanocomposites were synthesized in the presence of polyvinylpyrrolidone (PVP). The obtained AgCl@PANI nanocomposites could be easily dispersed in aqueous media, which overcame the processible issues of PANI. Moreover, the nanocomposites showed excellent electrochemical behavior at pH neutral environment, and had inhibitive effect on oxidation of ascorbic acid. Fourier transform infrared spectrophotometry (FTIR) confirmed the existence of PVP in the nanocomposites. The C = O group of PVP is easy to form hydrogen bonding with the hydroxyl group of ascorbic acid, which can prevent ascorbic acid from oxidization. A selective dopamine biosensor was constructed based on the particular characteristic of the AgCl@PANI nanocomposites by the simple drop-coating. The biosensor could detect dopamine at its very low concentration in the presence of 5000 time concentration of ascorbic acid at neutral environment.",

keywords = "AgCl@polyaniline (PANI) core-shell nanocomposites, Ascorbic acid, Dopamine, Electrochemical, Glassy carbon electrode",

author = "Wei Yan and Xiaomiao Feng and Xiaojun Chen and Xinghua Li and Zhu, {Jun Jie}",

year = "2008",

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doi = "10.1016/j.bioelechem.2007.07.003",

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T1 - A selective dopamine biosensor based on AgCl@polyaniline core-shell nanocomposites

AU - Yan, Wei

AU - Feng, Xiaomiao

AU - Chen, Xiaojun

AU - Li, Xinghua

AU - Zhu, Jun Jie

PY - 2008/2

Y1 - 2008/2

N2 - Silver chloride@polyaniline (PANI) core-shell (AgCl@PANI) nanocomposites were synthesized in the presence of polyvinylpyrrolidone (PVP). The obtained AgCl@PANI nanocomposites could be easily dispersed in aqueous media, which overcame the processible issues of PANI. Moreover, the nanocomposites showed excellent electrochemical behavior at pH neutral environment, and had inhibitive effect on oxidation of ascorbic acid. Fourier transform infrared spectrophotometry (FTIR) confirmed the existence of PVP in the nanocomposites. The C = O group of PVP is easy to form hydrogen bonding with the hydroxyl group of ascorbic acid, which can prevent ascorbic acid from oxidization. A selective dopamine biosensor was constructed based on the particular characteristic of the AgCl@PANI nanocomposites by the simple drop-coating. The biosensor could detect dopamine at its very low concentration in the presence of 5000 time concentration of ascorbic acid at neutral environment.

AB - Silver chloride@polyaniline (PANI) core-shell (AgCl@PANI) nanocomposites were synthesized in the presence of polyvinylpyrrolidone (PVP). The obtained AgCl@PANI nanocomposites could be easily dispersed in aqueous media, which overcame the processible issues of PANI. Moreover, the nanocomposites showed excellent electrochemical behavior at pH neutral environment, and had inhibitive effect on oxidation of ascorbic acid. Fourier transform infrared spectrophotometry (FTIR) confirmed the existence of PVP in the nanocomposites. The C = O group of PVP is easy to form hydrogen bonding with the hydroxyl group of ascorbic acid, which can prevent ascorbic acid from oxidization. A selective dopamine biosensor was constructed based on the particular characteristic of the AgCl@PANI nanocomposites by the simple drop-coating. The biosensor could detect dopamine at its very low concentration in the presence of 5000 time concentration of ascorbic acid at neutral environment.

KW - AgCl@polyaniline (PANI) core-shell nanocomposites

KW - Ascorbic acid

KW - Dopamine

KW - Electrochemical

KW - Glassy carbon electrode

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SN - 1567-5394

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JO - Bioelectrochemistry

JF - Bioelectrochemistry

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A selective dopamine biosensor based on AgCl@polyaniline core-shell nanocomposites

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