Attachment of DNA to the Carbon Fiber Microelectrode via Gold Nanoparticles for Simultaneous Determination of Dopamine and Serotonin
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- LU Liping
- Department of Chemistry, University of Science and Technology of China
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- WANG Shuqing
- Department of Chemistry, University of Science and Technology of China
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- LIN Xiangqin
- Department of Chemistry, University of Science and Technology of China
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Description
A novel biochemical sensor was fabricated on a carbon fiber microelectrode, which consisted of an inner layer of electrodeposited gold nanoparticles, as a nano-array electrode, and an outer layer of electrodeposited calf thymus ds-DNA at +1.5 V vs. SCE. This modified electrode was characterized by X-ray photoelectron spectroscopy, scanning electron microscope, atomic force microscopy, cyclic voltammetry and differential pulse voltammetry (DPV). It was found that this electrochemical sensor exhibits a strong catalytic activity toward the oxidation of dopamine (DA), serotonin (5-HT) and ascorbic acid (AA), as a result of resolving the anodic voltammetric peaks of DA, 5-HT and AA into three welldefined peaks. Simutaneous DPV determination of DA and 5-HT can be achieved in the presence of 2000-fold AA. The modified electrode shows good sensitivity, selectivity and stability.
Journal
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- Analytical Sciences
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Analytical Sciences 20 (8), 1131-1135, 2004
The Japan Society for Analytical Chemistry
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Details 詳細情報について
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- CRID
- 1390001204257147008
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- NII Article ID
- 10013450677
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- NII Book ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD2cXmvFOiu7o%3D
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- ISSN
- 13482246
- 09106340
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- NDL BIB ID
- 7037782
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- PubMed
- 15352499
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- Web Site
- http://id.ndl.go.jp/bib/7037782
- https://ndlsearch.ndl.go.jp/books/R000000004-I7037782
- https://link.springer.com/content/pdf/10.2116/analsci.20.1131.pdf
- https://link.springer.com/article/10.2116/analsci.20.1131/fulltext.html
- http://www.jstage.jst.go.jp/article/analsci/20/8/20_8_1131/_pdf
- https://search.jamas.or.jp/link/ui/2006047417
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed