主催: 一般社団法人 日本機械学会
会議名: 第8回マイクロ・ナノ工学シンポジウム
開催日: 2017/10/31 - 2017/11/02
This paper presents a novel microfluidic device for high throughput ion-channel analysis. To analyze the electrophysiological properties of cells efficiently, we designed the electrically independent microchannels on the microfluidic device. The microfluidic device is composed of a silicon-on-insulator (SOI) layer having the trap holes with 9 or 12 μm diameter, poly-dimethylsiloxane (PDMS) microchannel chips and glass substrate with Pt electrodes. We successfully trapped the multiple cells on one device without damage by applying negative pressure to the microchannels with a syringe pump. Finally, we confirmed that the each trap hole was strongly sealed with the cell by measuring the electrical impedance, which was more than 1 GΩ, namely gigaseal.