English  |  正體中文  |  简体中文  |  Items with full text/Total items : 63190/95884 (66%)
Visitors : 4618555      Online Users : 335
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/97854

    Title: Electrophoresis of pH-regulated, zwitterionic particles: Effect of self-induced nonuniform surface charge
    Authors: Chen, Yu-Yen;Hsu, Jyh-Ping;Tseng, Shiojenn
    Contributors: 淡江大學數學學系
    Keywords: Electrophoresis;pH-regulated nanoparticles;Self-induced nonuniform surface charge;Types of background electrolytes
    Date: 2014-05
    Issue Date: 2014-04-23 16:08:29 (UTC+8)
    Publisher: Maryland Heights: Academic Press
    Abstract: The electrophoresis of a pH-regulated, zwittterionic nanoparticle, taking account of its self-induced nonuniform surface charge, the presence of multiple ionic species, and the effect of double-layer polarization, is modeled. This extends previous models to a case closer to reality because the charged properties of a particle can be influenced by both its physicochemical nature and the solution conditions. We show that the nonuniform surface charge distribution induces a local electric field having the direction either opposite to or the same as that of the applied electric field, thereby either reducing or raising the particle velocity. This effect is most important when both the surface potential and the degree of nonuniformality are high. The competition of the effects of the position dependent double layer thickness, the surface proton distribution, and the double-layer polarization yields complicated and interesting behaviors. Depending upon the level of pH, the influence of the types of background salt on the particle mobility can be significant.
    Relation: Journal of Colloid and Interface Science 421, pp.154-159
    DOI: 10.1016/j.jcis.2014.01.028
    Appears in Collections:[Graduate Institute & Department of Mathematics] Journal Article

    Files in This Item:

    File Description SizeFormat
    Electrophoresis of pH-regulated, zwitterionic particles Effect of self-induced nonuniform surface charge.pdf733KbAdobe PDF1View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback