Dopamine Sensor Based on a Boron-Doped Diamond Electrode Modified with a Polyaniline/Au Nanocomposites in the Presence of Ascorbic Acid
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- SONG Min-Jung
- Department of Materials Science and Engineering, Korea University
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- LEE Seung-Koo
- Department of Materials Science and Engineering, Korea University
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- KIM Jong-Hoon
- Department of Materials Science and Engineering, Korea University
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- LIM Dae-Soon
- Department of Materials Science and Engineering, Korea University
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A selective dopamine (DA) sensor was developed using gold nanoparticles (Au-NPs) dispersed overoxidized-polyaniline (PANIox) based on a boron-doped diamond (BDD) thin-film electrode. The concentration of the DA was determined using voltammetry as a non-enzymatic sensor. BDD thin film has a high signal-to-noise ratio, a long-term stability, a high sensitivity, and a good reproducibility. PANI nanocomposites were directly synthesized on the BDD electrode and overoxidized using 0.5 M H2SO4 solution. The overoxidized PANI film enhances selectivity and sensitivity toward DA. The Au-NPs were dispersed on the PANI nanocomposite by electrochemical deposition. The nanometer-sized Au-NPs favor the sensing of DA in the presence of ascorbic acid (AA). The combination of the PANI with the Au-NPs and the BDD electrode can create synergetic effects for the performance of the biosensor, such as a fast response time, a lower detection limit, a wider linear range, enhanced selectivity, and higher sensitivity for the determination of DA.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 28 (6), 583-587, 2012
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204259968384
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- NII論文ID
- 10030757986
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- NII書誌ID
- AA10500785
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- COI
- 1:STN:280:DC%2BC38jksVKjtw%3D%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 023689193
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- PubMed
- 22729044
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- Web Site
- https://ndlsearch.ndl.go.jp/books/R000000004-I023689193
- https://link.springer.com/content/pdf/10.2116/analsci.28.583.pdf
- https://link.springer.com/article/10.2116/analsci.28.583/fulltext.html
- https://www.jstage.jst.go.jp/article/analsci/28/6/28_583/_pdf
- https://search.jamas.or.jp/link/ui/2013046773
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- 本文言語コード
- en
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- JaLC
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