electrokinetic – TechConnect Briefs

Microfluidic Injector Models Based on Neural Networks

Magargle R., Hoburg J.F., Mukherjee T., Carnegie Mellon University, US

An injector modeling methodology based on neural networks is presented. The new aspects of this approach are (1) the full description of the dynamic injector behavior and (2) the applicability of the approach to a [...]

System Simulations of Complex Electrokinetic Passive Micromixers

Wang Y., Lin Q., Mukherjee T., Carnegie Mellon University, US

This paper presents a composable system simulation framework using an analog hardware description language implementing behavioral models for electrokinetic micromixers that are capable of accurately capturing the effects of mixer topology/geometry, flow ratio and material [...]

An Injector Component Model for Complete Microfluidic Electrokinetic Separation Systems

Magargle R., Hoburg J.F., Mukherjee T., Carnegie Mellon University, US

This work presents a closed-form, numerically derived model of a key microfluidic electrokinetic separation system component, the cross injector. The model fits into a framework such that it can be combined with a network of [...]

A Simple Description of Turn-induced Transverse Field Dispersion in Micrlfluidic Channels for System-Level Design

Magargle R.M., Hoburg J.F., Mukherjee T., Carnegie Mellon University, US

This abstract shows a simple analytical model for turn-induced dispersion that captures an essential aspect of the transition field from uniform to circumferential that has been ignored in prior simple descriptions. The model applies directly [...]

Electroosmotic Flow in a Tube or Channel for Non-Negligible Zeta Potentials

Griffiths S.K., Nilson R.H., Sandia National Laboratories, US

Numerical methods based on a shooting technique are employed to determine the electric potential and fluid velocity in a tube and channel when the zeta poten- tial is not small. In addition, new analytical solutions [...]

Hydrodynamic Dispersion of a Neutral Non-Reacting Solute in Electroosmotic Flows

Griffiths S.K., Nilson R.H., Sandia National Laboratory, US

To investigate hydrodynamic dispersion in electroosmotic ?ow, we have derived an asymptotic series solution for the problem of two-dimensional species transport in a tube or channel. This solution is applicable to the late-time diÆusive and [...]