particle transport – TechConnect Briefs

Effects of Memories of Polarization Interactions during Particle Transport Induced by One Gradient AC Electric Field

Shen Y., Tada S., Qiu Z., The City College of the City University of New York and New York Center for Biomedical Engineering, US

On the Nanotech 2008 in Boston, we reported our experimental observations of the particle instability and island-like structures in the suspension of poly alpha olefin particles and corn oil when the suspension was exposed to [...]

A Higher-Order Approach to Fluid-Particle Coupling in Microscale Polymer Flows

Kallemov B., Miller G.H., Trebotich D., Lawrence Livermore Natioanal Laboratory, US

Flows containing long-chain polymers are viscoelastic on macroscopic length scales, but in microscale and nanoscale flows hybrid fluid-particle approaches are more suitable. Such an approach would enable more complex predictive modeling, including polymer-wall interactions like [...]

Modeling Particle Hydrodynamic Transport in an Idealized Nanoscale Bio-Motor

Longest P.W., Pidaparti R.M., Virginia Commonwealth University, US

In the cell, hydrodynamic characteristics of the nuclear pore complex (NPC) are characterized by Stokesian liquid flow dynamics and high relative particle diffusion rates. As such, the hydrodynamics model of the NPC will be based [...]

Strong DC and Low-Frequency AC Fields for the Manipulation of Particles and Fluids in Microfluidics

Kumar A., Qiu Z., Khusid B., Yeksel M., Acrivos A., New Jersey Institute of Technology, US

Electroosmosis and electrophoresis are considered to be the main phenomena for transport of aqueous liquids and particles in microfluidic devices because field-based techniques do not require any moving parts and can be incorporated more favorably [...]