[21p-D902-1~17] 12.7 Biomedical Engineering and Biochips

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[21p-D902-5] Investigation of Width and Polarity Dependence for Electrical Characteristics and Detection Sensitivity based on Si Nanowire Biosensor

〇Fumiya Osawa¹, Hui Zhang¹, Yawei Qiu¹, Meiko Itabashi¹, Noriyasu Ohshima², Taira Kajisa³, Toshiya Sakata⁴, Takashi Izumi^2,5, Hayato Sone¹ (1.Gunma Univ. Graduate School of Science and Technology, 2.Gunma Univ. Graduate School of Medicine, 3.Toyo Univ., 4.The Univ. of Tokyo, 5.Teikyo Heisei Univ.)

Keywords:

Si nanowire biosensor,n-type and p-type,polarity dependence

In this research, after analyzing the nanowire (NW) width and polarity dependence of detection sensitivity using theoretical analysis, n-type and p-type SiNW biosensors with different NW widths were fabricated, and electrical characteristics and detection sensitivity were investigated. From the results, we confirmed the possibility of selecting n-type and p-type SiNWs according to the polarity of the charge on the biomolecules, and detecting more minute amounts of biomolecules with high sensitivity by adjusting the NW width.