Electrophoresis of soft particles at high electrolyte concentrations: an interpretation by the Henry theory

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • Stanislav S Dukhin - , New Jersey Institute of Technology, Newark, NJ 07102-1982, USA. (Author)
  • Ralf Zimmermann - , Leibniz Institute of Polymer Research Dresden (Author)
  • Carsten Werner - , Chair of Biofunctional Polymer Materials, Leibniz Institute of Polymer Research Dresden, University of Toronto (Author)

Abstract

The existence of electrophoretic mobility at high electrolyte concentrations defines a remarkable peculiarity in the electrosurface characteristics of soft particles. According to Ohshima [H. Ohshima, Colloids Surf. 103 (1995) 249], this effect is caused by the electroosmotic flow within the soft particle shell. An explanation supporting Ohshima's conclusion can be derived from classic electrokinetic theories. Based on the Henry theory [D.C. Henry, Proc. R. Soc. London Ser. A 133 (1931) 106], we demonstrate that the electrophoretic mobility of soft particles does not disappear at decinormal concentration.

Details

Original languageEnglish
Pages (from-to)676-9
Number of pages4
JournalJournal of colloid and interface science
Volume313
Issue number2
Publication statusPublished - 15 Sept 2007
Peer-reviewedYes

External IDs

Scopus 34547197322
ORCID /0000-0003-0189-3448/work/173985697

Keywords

Keywords

  • Electrolytes/chemistry, Electroosmosis, Electrophoresis, Models, Chemical