The dielectrophoretic behaviour of submicron latex spheres: Influence of surface conductance

Michael P. Hughes, Hywel Morgan, Mary F. Flynn

Research output: Contribution to journalArticlepeer-review

88 Scopus citations

Abstract

An analysis of the dielectrophoretic crossover frequency as a function of medium conductivity has been made for submicron spheres with different surface functionalities. It is shown that the AC electrokinetic behavior of the particles can be explained by modeling the surface conductivity of the particle as the sum of two surface conductance components: one due to charge motion behind the slip plane (the Stern layer) and the other due to charge motion in front of the slip plane.

Original languageBritish English
Pages (from-to)454-457
Number of pages4
JournalJournal of Colloid and Interface Science
Volume220
Issue number2
DOIs
StatePublished - 15 Dec 1999

Keywords

  • Double layer
  • Protein immobilization
  • Submicron particles
  • Surface conductance

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