Single Micro-channel Formation in a Gap between Probe Electrodes by Freezing an Aqueous Electrolyte

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  • ARAI Yuta
    Department of Chemistry, Tokyo Institute of Technology
  • HARADA Makoto
    Department of Chemistry, Tokyo Institute of Technology
  • OKADA Tetsuo
    Department of Chemistry, Tokyo Institute of Technology

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説明

A size-tunable micro-channel is fabricated in a gap between two probe electrodes by freezing aqueous KCl. The channel has been characterized by resistance measurements and channel blocking by resistive particles. The channel size can be varied by the temperature even after the preparation of the channel. The channel is potentially useful not only for size-selective particle counting but also for the size-selective separation or filtration of particles and macromolecules.

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  • Analytical Sciences

    Analytical Sciences 30 (11), 1035-1037, 2014

    社団法人 日本分析化学会

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