Fabrication of Pt Nanoparticles-decorated CVD Diamond Electrode for Biosensor Applications
- Authors
- Song, Min-Jung; Kim, Jong-Hoon; Lee, Seung-Koo; Lim, Dae-Soon
- Issue Date
- 10월-2011
- Publisher
- JAPAN SOC ANALYTICAL CHEMISTRY
- Citation
- ANALYTICAL SCIENCES, v.27, no.10, pp.985 - 989
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANALYTICAL SCIENCES
- Volume
- 27
- Number
- 10
- Start Page
- 985
- End Page
- 989
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/111501
- DOI
- 10.2116/analsci.27.985
- ISSN
- 0910-6340
- Abstract
- An electrochemical biosensor was developed using boron-doped diamond (BDD) as an electrode material. To enhance the electrical performance of the electrode, the BDD electrode was decorated with Pt-nanoparticles (Pt-NPs) by electrochemical deposition. Their morphology according to the applied potentials for the synthesis of Pt-NPs was characterized by SEM. To identify the performance of the electrode modified with Pt-NPs, glucose detection was used as a sample sensing process, and the results were compared with those of a gold electrode and a bare BDD electrode. The electrochemical characteristics of the modified electrode were examined by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The BDD electrode with the Pt-NPs showed higher sensitivity and a lower detection limit than the Au electrode and BDD electrode. The proposed biosensor based on the Pt-NPs decorated BDD electrode showed high sensitivity, a low detection limit, fast direct electron transfer and good stability.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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