[20p-PA4-1~23] 12.7 Biomedical Engineering and Biochips

[20p-PA4-3] Development of multi-sensing parallel plate electrodes for electrochemical impedance spectoscopy

〇Haruka Honda¹, Hitoshi Ohnuki¹, Daiju Tsuya², Haiyun Wu¹, Hideaki Endo¹ (1.Tokyo Univ. of Marine Sci. and Tech., 2.NIMS)

Keywords:Biosensor, Electrochemical Impedance Spectroscopy, Parallel Plate Electrodes

We developed a biosensor having better reproducibility than conventional interdegitated electrodes for electrochemical impedance spectroscopy. The biosensor consists of two parallel plate electrodes separated with micro-scale gap. In this presentation, we report a newly developed multi-sensing substrate with parallel plate electrodes. By using the substrate, we proposed a differential measurement scheme which can eliminate variation in the sensor caused by nonspecific adsorption.