On the electrophoretic mobility of a cylindrical soft particle |
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| Authors: | H Ohshima |
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| Institution: | (1) Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science Science University of Tokyo 12 Ichigaya Funagawara-machi Shinjuku-ku, Tokyo 162–0826, Japan e-mail: ohshima@ps.kagu.sut.ac.jp, JP |
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| Abstract: | A previous theory for the electrophoresis of a cylindrical soft particle (that is, a cylindrical hard particle covered with
a layer of polyelectrolytes) 7], which makes use of the condition that the electrical force acting on the polymer segments
is balanced with a frictional force exerted by the liquid flow, is modified by replacing this condition with an alternative
and more appropriate boundary condition that pressure is continuous at the boundary between the surface layer and the surrounding
electrolyte solution. The general mobility expression thus obtained is found to reproduce all of the approximate analytic
mobility expressions derived previously.
Received: 20 July 2000/Accepted: 21 August 2000 |
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| Keywords: | Electrophoretic mobility Cylindrical particle Soft particle |
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