2018
DOI: 10.1103/physreve.98.023103
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Ion partitioning effect on the electrophoresis of a soft particle with hydrophobic core

Abstract: A theoretical study on the electrophoresis of a soft particle made up of a charged hydrophobic inner core surrounded by polyelectrolyte layer (PEL) is made. The dielectric permittivity of the PEL and aqueous solution are considered to be different, which creates the ion partitioning effect. The ion partitioning effect, which is accounted by the Born energy difference, modifies the distribution of mobile ions in the PEL and hence alters the particle electrophoresis. The combined effects of core hydrophobicity a… Show more

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Cited by 35 publications
(23 citation statements)
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“…Ion partitioning effect modifies the charge density in polyelectrolyte layer and consequently affects the electrophoresis of soft charged particles as well as electrokinetics in soft nanochannels. Very recently, ion partitioning effect attracted a great deal of interest of researchers studying the electrophoresis of charged soft particles immersed in electrolytes [44,45,46,47,48,49,50] and electrokinetic transport in soft nanochannels [51,52,53]. The analytical and numerical studies [44,49,50,45,46,47,48],…”
Section: Introductionmentioning
confidence: 99%
“…Ion partitioning effect modifies the charge density in polyelectrolyte layer and consequently affects the electrophoresis of soft charged particles as well as electrokinetics in soft nanochannels. Very recently, ion partitioning effect attracted a great deal of interest of researchers studying the electrophoresis of charged soft particles immersed in electrolytes [44,45,46,47,48,49,50] and electrokinetic transport in soft nanochannels [51,52,53]. The analytical and numerical studies [44,49,50,45,46,47,48],…”
Section: Introductionmentioning
confidence: 99%
“…The effects of ion partitioning on the electrokinetics in soft nanochannels were analyzed in order to offset the existing work results with the consideration of equal permittivity inside and outside the ECL [22]. A large number of articles dealt with such effects in various research studies [23][24][25]. In this paper, however, we have not added the ion partitioning effect to present thruster systems since this consideration is repetitive.…”
Section: Introductionmentioning
confidence: 99%
“…Also, particle mobility expressions derived with assuming identical dielectric permittivity between core and shell phases are necessarily approximate in capturing the electrophoretic features of metallic or semiconducting particles functionalized with polymer coatings. Although there is an abundant literature on theory of electrophoresis for soft particles with simplified representation of dielectric permittivity distribution throughout the core and shell particle components, lesser attention has been paid to the elaboration of electrokinetic models for core-shell particles with account of dielectric-induced ions partitioning effects [39,40]. In addition, the internal particle core has been exclusively tackled with assuming insignificant permeation to ions and flow within it.…”
Section: Introductionmentioning
confidence: 99%