title: Steric-effect-induced enhancement of electrical-double-layer overlapping phenomena.
abstract: In this paper, we demonstrate that nontrivial interactions between steric effect and electrical-double-layer (EDL) overlap phenomena may augment the effective extent of EDL overlap in narrow fluidic confinements to a significant extent by virtue of rendering the channel centerline potential tending to the ζ potential in a limiting sense as the steric effect progressively intensifies. Such a behavior may result in a virtually uniform (undiminished) magnitude of the EDL potential across the entire channel height and may cause lowering of the total charge within the EDL.
authors.affiliation: Physics of Fluids Group, JM Burgers Centre for Fluid Dynamics, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: Siddhartha
authors.initials: S
authors.lastname: Das
authors.forename: Suman
authors.initials: S
authors.lastname: Chakraborty
mesh_terms: D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods; D007477:Ions; D007700:Kinetics; D044085:Microfluidics; D015233:Models, Statistical; D008962:Models, Theoretical; D036103:Nanotechnology / Q000379:methods; D010825:Physics / Q000379:methods*
chemical_list: D007477:Ions