Electrochemical Characteristics of Aptasensor Based on MEMS Thin-Film Gold Electrode

Abstract:

A new fabrication methods of thin-film gold electrode is reported. Electrochemical characteristics of self-assembly aptasensor based on MEMS thin-film gold electrode has been studied by lots of experiments, characteristics include immobilizing time, AC impedance, CV curves. Experiments indicate immobilizing time of DNA-SH on gold electrode is more than 15 hours. CV curves and AC impedance of MEMS thin-film gold electrode show the same conclusion that 20μm/L DNA is optimum concentration when DNA is immobilized on gold electrode. Those results present a potential universal method for other aptasensors.

• Periodical: Key Engineering Materials (Volumes 562-565)
• Pages: 441-445
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.562-565.441
• Online since: July 2013
• Authors: Yan Xia Yan, Li Ying Jiang, Fen Fen Wang, Yan Zhang, Jie Hu
• Keywords: AC Impedance, ATP, CV Curves, Immobilizing Effect, Thin-Film Gold Electrode

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