Micro & Bio Fluidics, Lab-on-Chip – Page 18

Curvilinear Waveforms for Fluid Dispensing

Clark J., Zebra Technologies, US

Piezoelectric micropipettes, a type of drop -on-demand ink jet microdispenser, are typically driven by repetitively pulsed waveforms to cause fluid ejection through a small orifice. To study the effect of drive waveform shape on drop [...]

Electrohydrodynamic Micro-droplet Generation on Both Conducting and Non-conducting Surfaces by Electric Induction

Lee B-S, Lee J-G, Lee B-S, Lee J-G, Cho H.-J., Huh N., Ko C., Samsung Advanced Institute of Technology, KR

There is a rapid growing need of the drop-based delivery of small quantities of bio-functional materials, such as cells. We report a brand-new printing method to generate a single droplet in the range of pL [...]

Micro and Nano Fluidics

Numerical Analysis of Nanofluidic Sample Preconcentration in Hydrodynamic Flow

Wang Y., Pant K., Diffey W., Chen Z., Sundaram S., CFD Research Corporation, US

This paper presents the first, high-fidelity numerical study of nanofluidic streaming potential-based sample preconcentration. Parametric analysis is performed to capture the critical effects of pressure and background electrolyte (BGE) concentration on preconcentrator performance. Our studies [...]

Numerical Modelling and Analysis of the Burning Transient in a Solid-propellant Micro-thruster

Moríñigo J.A., Hermida-Quesada J., National Institute for Aerospace Technology, ES

The assessment of characterization and feasibility of rocket engines scaled to millimeter size, arrayed onto wafers for the propulsion of small spacecrafts, is closely related to the right prediction of the thermal response of the [...]

Simulation of RBCs Bioconcave shape Using 2_D Lattice Boltzmann

Farhat H., Lee J.S., Wayne State University, US

A multicomponent lattice Boltzmann model is used to reproduce RBCs bioconcave shape using variable surface tension on the interface between two fluids.

Computational Microfluidics for Miniaturised Bio-Diagnostics Devices using the code “TransAT”

Narayanan C., Lakehal D., ASCOMP GmbH, CH

We will report on our recent advances made in predicting this class of flows with our CMFD code TransAT (www.ascomp.ch), using the Level Set approach as an “Interface Tracking Method”. Our code incorporate phase-change capabilities, [...]

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 [...]

Multiscale Design of a Laser Actuated Micro Bubble Array Acoustic-Fluidic Microdevice for Bioanalytical and Drug Delivery Applications

Chen Z.J., Przekwas A.J., CFD Research Corporation, US

Next generation fluidic micro-nano devices will require precise control of force fields within a device and their interaction with a biological sample. Current force field designs use mechanical structures such as cantilevers, optical fields e.g. [...]

A lattice Boltzmann study of the non-Newtonian blood flow in stented aneurysm

Kim Y.H., Farhat S., Lee J.S., Wayne State University, US

The treatment of cerebral aneurysms with a minimally invasive porous stent has recently been proposed to prevent rupture and favor coagulation mechanism inside the aneurysm. But, an irregularly shaped and wide-necked aneurysm makes current stent [...]