Fabrication of 3D interdigitated array electrode consisting of Au nanoparticles and its application for biosensing

I. T.O. Takeshi, Nobuyoshi Aoki, Satoru Kaneko, Koji Suzuki

Research output: Contribution to journalArticle

3 Citations (Scopus)


We developed a 3D interdigitated (IDA) array electrode consisting of Au nano particles, which increase the electrode surface. The electrode was fabricated using microfabrication and printing techniques. Electrochemical impedance spectroscopy was conducted to measure IgG concentration, when anti-IgG was immobilized onto Dithiobis (succinimidyl propionate) (DTSP) SAM/3D-IDA electrode. A linear relationship between charge transfer resistance (R ct) values and the logarithm of IgG concentration was observed in the range of 1 μg/ml to 1 mg/ml.

Original languageEnglish
Pages (from-to)305-307
Number of pages3
Issue number5
Publication statusPublished - 2012 May 1



  • 3d ida electrode
  • Electrochemical impedance spectroscopy

ASJC Scopus subject areas

  • Electrochemistry

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