Polydimethylsiloxane has been dominantly employed as the substrate material for microchip capillary electrophoresis. The poor surface chemistry, however, generates inconsistent electroosmotic flow under the electrophoretic condition, limiting its broader applications. In this work, different polyelectrolytes, including polydiallyldimethylammonium chloride, polyvinyl sulfate, and dextran sulfa...

In this paper, three-dimensional incompressible laminar fluid flow in a rectangular microchannel heat sink (MCHS) using Al2O3/water nanofluid as a cooling fluid is numerically studied. CFD prediction of fluid flow and forced convection heat transfer properties of nanofluid using single-phase and two-phase model (Eulerian-Eulerian approach) are compared. Hydraulic and thermal performance of microch...

the paper numerically presents laminar forced convection of a nanofluid flowing in a duct at microscale. results were compared with both analytical and experimental data and observed good concordance with previous studies available in the literature. influences of brinkman and reynolds number on thermal and hydrodynamic indexes have been investigated. for a given nanofluid, no change in efficie...

Abstract Liquid mineral fertilizers (LMF) have a high sorption ability, can be metered precisely, and the intra-soil application of LMF is relevant. However, agricultural equipment for this process that introduces liquid fertilizer under processed soil layer in form wide band has not yet been proposed. The purpose study to evaluate performance 102 mm rectangular discharge microchannel proposed ...

A microfluidic device known to mix bulk solutions, the herringbone microchannel, was incorporated into a surface-binding assay to determine if the recirculation of solution altered the binding of a model protein (streptavidin) to the surface. Streptavidin solutions were pumped over surfaces functionalized with its ligand, biotin, and the binding of streptavidin to those surfaces was monitored u...

A three-dimensional (3D) numerical simulation of a two-phase flow liquid/liquid is performed in rectangular microchannel with T-junction. The volume fluid (VOF) method was used under ANSYS Fluent to capture the interface between two phases. dynamic mesh adaptation technique together assumption symmetry plane helps us reduce computational cost. study focuses on patterns and hydrodynamics plugs. ...

• Finite element analyses are conducted to examine acoustophoresis in microchannels. The acoustophoretic process depends on the microparticle size and microchannel height. threshold particle is identified. optimal range of height determined. use acoustic waves for microfluidic aggregation has become widespread chemistry, biology medicine. Although numerous experimental analytical studies have b...