Issue 48, 2013
From the journal:

Soft Matter

Influence of temperature on the gel electrophoresis of a pH-regulated, zwitterionic sphere†

Jyh-Ping Hsu,*a   Chih-Hua Huanga  and  Shiojenn Tseng*b  

* Corresponding authors

a Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
E-mail: jphsu@ntu.edu.tw
Fax: +886-2-23623040
Tel: +886-2-23637448

b Department of Mathematics, Tamkang University, Tamsui, Taipei, Taiwan
E-mail: topology@mail.tku.edu.tw

Abstract

The gel electrophoresis of a pH-regulated, zwitterionic sphere is investigated based on a Brinkman model taking account of the steric effects coming from the presence of polymer structure. In particular, the influence of temperature on the mobility of a particle having dissociable/associable functional groups is assessed. The model proposed takes the temperature dependence of the permittivity and viscosity of the liquid medium, the diffusivity of ionic species, and the equilibrium constant of the surface reactions into account, and therefore, is more general and realistic than available models in the literature. A thorough numerical simulation is conducted for temperature and pH ranging from 283 K to 323 K and 5 to 8.5, respectively, to illustrate the electrophoretic behavior of the particle mobility in various conditions.

Graphical abstract: Influence of temperature on the gel electrophoresis of a pH-regulated, zwitterionic sphere

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Article information

DOI
https://doi.org/10.1039/C3SM52406J
Article type
Paper
Submitted
12 Sep 2013
Accepted
21 Oct 2013
First published
23 Oct 2013

Soft Matter, 2013,9, 11534-11541

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Influence of temperature on the gel electrophoresis of a pH-regulated, zwitterionic sphere

J. Hsu, C. Huang and S. Tseng, Soft Matter, 2013, 9, 11534 DOI: 10.1039/C3SM52406J

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