2019年第80回応用物理学会秋季学術講演会

講演情報

一般セッション(口頭講演)

12 有機分子・バイオエレクトロニクス » 12.3 機能材料・萌芽的デバイス

[18p-B12-1~17] 12.3 機能材料・萌芽的デバイス

2019年9月18日(水) 13:15 〜 18:00 B12 (B12)

野々口 斐之(奈良先端大)、吉田 浩之(阪大)

15:15 〜 15:30

[18p-B12-8] Modulation of photoelectric response by applying lateral bias to functional free-standing lipid bilayer

〇(DC)Xingyao Feng1、Teng Ma1、Daisuke Tadaki1、Ayumi Hirano-Iwata1 (1.Tohoku Univ.)

キーワード:Free-standing lipid bilayer, PCBM, Transmembrane current

The high transmembrane resistance and amphiphilicity are both attractive properties of lipid bilayer. In this work, a doped free-standing lipid bilayer was formed by using phospholipids and photo-sensitive molecule [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) in a micro-fabricated aperture of Si chip. When the PCBM-doped free-standing lipid bilayer was illuminated with 850 nm infrared light, the transmembrane current shifted. It was found that the current shift was modulated by alternating voltage bias parallel with lipid bilayer, which was applied through two electrodes embedded in Si chip. Therefore, this Si-chip based lipid bilayer system can serve as a promising photo-sensitive bio-transistor.