Browse > Article

An Electrochemical Detector Using Prussian Blue Electrodeposited Indium Tin Oxide Electrode  

Yi, In-Je (명지대 전기공학과)
Kim, Ju-Ho (명지대 전기공학과)
Kang, Chi-Jung (명지대 물리학과)
Kim, Yong-Sang (명지대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.54, no.10, 2005 , pp. 449-452 More about this Journal
Abstract
We fabricated an electrochemical detector (ECD) to catalyze redox reaction efficiently by electrodepositing Prussian blue (PB) on the indium tin oxide (ITO) electrode. Capillary electrophoresis (CE) and amperometric method were used. We investigated the PB surface properties by topography from atomic force microscopy (AFM). Also PB film thickness calibration with respect to deposition time and voltage was used to get better PB surFace. The PB thin film of dense and smooth surface could catalyze redox reaction efficiently. Comparing with CE-ECD microchip using bare-lTO electrode, proposed CE-ECD microchip using PB deposited electrode has shown better sensitivity by determining the detected peak current from the electropherograms while the concentration of tested analyzes was maintained the same. It is verified that detection limit can be lowered for 0.01 mM of dopamine and catechol respectively.
Keywords
Prussian Blue; ITO; Biosensor;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Ju-Ho Kim, C. J. Kang, and Yong-Sang Kim, 'A Development of a Microfabricated Disposable microchip with a Capillary Electrophoresis and Integrated Three-Electrode Electrochemical Detection,' Biosensors & Bioelectronics, vol. 20, no. 11, pp. 2314-2317, 2005   DOI   ScienceOn
2 Jin-Ho Kim, C. J. Kang, and Yong-Sang Kim, 'A disposable hermopneumatic-actuated microvalve stacked with PDMS layers and ITO-coated glass,' Microelectronic Engineering, vol. 73-74, pp, 864-869, 2004   DOI   ScienceOn
3 Manz, A, Graber, N., Widmer, H. M., 'Miniaturized total chemical analysis systems: A novel concept for chemical sensing,' Sens. & Act. B, vol. 1, pp. 244-248, 1990   DOI
4 Stephen C. Jacobson, Roland Hergenroder, Lance B. Koutny, J. Michael Ramsey, 'High-Speed Separations on a Microchip,' Anal. Chem., vol. 66, pp, 1114-1118, 1994   DOI
5 Martin, R. S., Ratzlaff, K. L., Huynh, B. H., Lunte, S.M., 'In-Channel Electrochemical Detection for Microchip Capillary Electrophoresis Using an Electrically Isolated Potentiostat,' Anal. Chem. vol, 74, pp. 1136-1143, 2002   DOI
6 Jin-Ho Kim, Kwang-Ho Na, C. J. Kang, D. Jeon, and Yong-Sang Kim, 'A disposable hermopneumatic-actuated microvalve stacked with PDMS layers and ITO-coated glass,' Microelectronic Engineering, vol. 73-74, pp, 864-869, 2004   DOI