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    題名: Diffusiophoresis of a pH-regulated Polyelectrolyte in a pH-regulated Nanochannel
    作者: Hsu, J.P.;Hsieh, S.H.;Tseng, Shiojenn
    關鍵詞: Diffusiophoresis;pH-regulated polyelectrolyte;pH-regulated nanochannel;Device design
    日期: 2017-11
    上傳時間: 2018-11-15 12:10:31 (UTC+8)
    摘要: Considering its potential application in improving the performance of a single-molecule biosensing device, the diffusiophoresis of a polyelectrolyte sphere in a charged cylindrical nanochannel is studied taking account of the effect of diffusioosmosis flow. The interaction of the double layers in the present system is expected to influence significantly the relevant fields, yielding profound diffusiophoretic behaviors. Adopting a zwitterionic, pH-regulated polyelectrolyte in a silicon dioxide nanochannel as an example, these behaviors are simulated by varying the pH and the bulk salt concentration of the liquid phase, and the nanochannel radius. We show that the charged nanochannel could influence significantly both the quantitative and the qualitative behavior of the polyelectrolyte. The underlying mechanisms leading to this observation are discussed in detail.
    關聯: Sensors & Actuators B: Chemical 252, p.1132-1139
    DOI: 10.1016/j.snb.2017.07.190
    顯示於類別:[數學學系暨研究所] 期刊論文

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