title: Alterations in streaming potential in presence of time periodic pressure-driven flow of a power law fluid in narrow confinements with nonelectrostatic ion-ion interactions.
abstract: We study the coupled effect of electrokinetic phenomena and fluid rheology in altering the induced streaming potential in narrow fluidic confinements, which is manifested by establishing a time periodic pressure-driven flow in presence of electrical double layer phenomenon. However, in sharp contrast with reported literature, we take into account nonelectrostatic ion-ion interactions toward estimating the same in addition to electrostatic interactions and steric effects. We employ power law based rheological model for estimating the induced streaming potential. We bring out an intricate interaction between nonelectrostatic interactions and fluid rheology on the concerned electrokinetic phenomena, bearing immense consequences toward designing of integrated lab-on-a-chip-based microdevices and nanodevices.
authors.affiliation: Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India.
authors.forename: Jayabrata
authors.initials: J
authors.lastname: Dhar
authors.forename: Uddipta
authors.initials: U
authors.lastname: Ghosh
authors.forename: Suman
authors.initials: S
authors.lastname: Chakraborty
mesh_terms: D007477:Ions; D008956:Models, Chemical; D008962:Models, Theoretical; D012212:Rheology / Q000379:methods*; D055672:Static Electricity
chemical_list: D007477:Ions
keywords: Nonelectrostatic interaction; Power law fluid; Streaming potential