Parallel recordings of transmembrane herg channel currents based on solvent-free lipid bilayer microarray

Ryusuke Miyata, Daisuke Tadaki, Daichi Yamaura, Shun Araki, Madoka Sato, Maki Komiya, Teng Ma, Hideaki Yamamoto, Michio Niwano, Ayumi Hirano-Iwata

研究成果: Article査読

抄録

The reconstitution of ion-channel proteins in artificially formed bilayer lipid membranes (BLMs) forms a well-defined system for the functional analysis of ion channels and screening of the effects of drugs that act on these proteins. To improve the efficiency of the BLM reconstitution system, we report on a microarray of stable solvent-free BLMs formed in microfabricated silicon (Si) chips, where micro-apertures with well-defined nano-and micro-tapered edges were fabricated. Sixteen micro-wells were manufactured in a chamber made of Teflon®, and the Si chips were individually embedded in the respective wells as a recording site. Typically, 11 to 16 BLMs were simultaneously formed with an average BLM number of 13.1, which corresponded to a formation probability of 82%. Parallel recordings of ion-channel activities from multiple BLMs were successfully demonstrated using the human ether-a-go-go-related gene (hERG) potassium channel, of which the relation to arrhythmic side effects following drug treatment is well recognized.

本文言語English
論文番号98
ジャーナルMicromachines
12
1
DOI
出版ステータスPublished - 2021 1

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 機械工学
  • 電子工学および電気工学

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