The presented article addresses the electro-osmotic peristaltic flow of a couple stress fluid bounded in an inclined asymmetric micro-channel. viscous dissipation, Joule heating and chemical reaction effects are employed simultaneously analysis. Heat mass transfer have been studied under large wavelength small Reynolds number. resulting nonlinear systems solved numerically. influence various do...

Silicon microchips of size 100x100 μm with active electronic sensing and actuation reacting in a chemical environment is the vision of the research project http://www. micreagents.eu, see figure 1a. These chips, called lablets, are fabricated in standard 180nm silicon technology and will be equipped with custom developed supercapacitors allowing them to react autonomously in fluids. They are de...

09.30 Olgica Bakajin 4” CNT Membranes: Fabrication & Characterization 14.00 Alberto Striolo Using Hydration Water to Enhance the Selectivity of Membrane Separations 09.30 Michael Strano Understanding molecular transport through single, isolated nanocarbon pores 14.00 Roland Netz Effects of dielectric and viscosity profiles on electro-osmotic flow and conductivity in nanotubes 10.00 Discussion 1...

AC electro-osmotic (ACEO) pumps in microfluidics currently involve planar electrode arrays, but recent work on the underlying phenomenon of induced-charge electro-osmosis (ICEO) suggests that three-dimensional (3D) geometries may be exploited to achieve faster flows. In this paper, we present some new design principles for periodic 3D ACEO pumps, such as the "fluid conveyor belt" of ICEO flow o...

This paper presents a novel method to control Electro Osmotic Flow (EOF) with AC electrical fields. It is shown that with a single potential the zeta potential at a solid liquid interface and the channel potential that drives the EOF can be controlled in a synchronized matter to create a net flow with zero average potential. The frequency regime in which the EOF can be controlled is bound by th...

The mechanism by which fluid is transported across epithelial layers is still unclear. The prevalent idea is that fluid traverses these layers transcellularly, driven by local osmotic gradients secondary to electrolyte transport and utilizing the high osmotic permeability of aquaporins. However, recent findings that some aquaporin knockout mice epithelia transport fluid sow doubts on local osmo...

Three-dimensional (3D) ac electro-osmotic (ACEO) pumps have recently been developed that are much faster and more robust than previous planar designs. The basic idea is to create a "fluid conveyor belt" by placing opposing ACEO slip velocities at different heights. Current designs involve electrodes with electroplated steps, whose heights have been optimized in simulations and experiments. Here...

We show with computer simulations that anomalous electrokinetic effects, such as ion specificity and nonzero zeta potentials for uncharged surfaces, are generic features of electro-osmotic flow in hydrophobic channels. This behavior is due to the stronger attraction of larger ions to the "vapor-liquidlike" interface induced by a hydrophobic surface. We propose an analytical model involving a mo...

Ion transport in polyelectrolyte membranes (charged hydrogels) is of significant technological (and biological) importance, but little known how micro-structural inhomogeneity affects ionic conductivity. Whereas a uniform electric field drives uni-directional electro-migrative and electro-osmotic ion fluxes perfectly microstructures, this study considers the influence spherical inclusions/cavit...