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Modulation of Photoinduced Transmembrane Currents in a Fullerene-Doped Freestanding Lipid Bilayer by a Lateral Bias

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posted on 2019-10-23, 16:40 authored by Teng Ma, Xingyao Feng, Takeshi Ohori, Ryusuke Miyata, Daisuke Tadaki, Daichi Yamaura, Takafumi Deguchi, Maki Komiya, Kensaku Kanomata, Fumihiko Hirose, Michio Niwano, Ayumi Hirano-Iwata
We report on a novel lipid bilayer system, in which a lateral bias can be applied in addition to a conventional transmembrane voltage. Freestanding bilayer lipid membranes (BLMs) doped with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) were formed in a microaperture, around which metal electrodes were deposited. Using this system, it was possible to modulate and amplify photoinduced transmembrane currents by applying a lateral bias along the BLM. The results indicate that the microfabricated Si chip with embedded electrodes is a promising platform for the formation of transistor-like devices based on PCBM-doped BLMs and have potential for use in a wide variety of nanohybrid devices.

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