Micro & Bio Fluidics, Lab-on-Chip – Page 19

Viscosity measurements of PEO solutions by AFM with long nanowires

Hosseini M., Yazdanapanah M.M., Siddique S., Cohn R.W., University of Louisville, US

We recently demonstrated that long metal nanoneedles grown on atomic force microscope (AFM) probes can give very clear measurements of the surface tension, evaporation rate and viscosity of simple liquids. However, in the case of [...]

Understanding Conduction Mechanisms in Nano-Structures

Gehman Jr V.H., Long K.J., Santiago F., Boulais K.A., Rayms-Keller A.N., Naval Surface Warfare Center, Dahlgren Division, US

Many technologies require the understanding of conduction and electrical transport mechanisms through nanostructures. Previous research has revealed unusual and enhanced conduction properties in pores whose width is significantly less than 1 m over a range [...]

Ceramic Microarrays for Aggressive Environments

Atre S.V., Wu C., Simmons K.L., Laddha S., Jain K., Lee S., Park S-J, German R.M., Oregon Nanoscience & Microtechnologies Institute, US

The effect of particle characteristics and polymer rheology on the fabrication of sintered ceramic microarrays using powder injection modling is examined. The impact of material composition on microfeature resolution and defect avoidance during processing was [...]

Direct Current Dielectrophoretic Characterization of Erythrocytes: Positive ABO blood types

Keshavamurthy S.S., Leonard K., Burgess S.C., Minerick A.R., Mississippi State University, US

This work adapts DC-DEP to a medical diagnostic application of sorting blood cells. Initial efforts focus on achieving separation and collection of red blood cells based on their positive ABO blood types. A significant separation [...]

Pressure driven tough micro pump

Weise F., Klett M., Schober A., Technische Universitat Ilmenau, DE

We have developed pressure driven micro pump. They can deliver gas and liquid. That is an absolute advantage of the scale of this pump. Our pump is designed for integration in a multi well plate [...]

A Self-vortical Micromixer and its Application on Micro-DMFC

Lin C., Fu C., Institute of NanoEngineering and MicroSystems, TW

In this study, we demonstrate a new passive micromixer, a self-vortical micromixer, and integrated this micromixer into a micro-DMFC.

External Field Induced Non-Uniform Growth of Micron Composite Materials in Insulating Liquid: Experimental and Simulating

Tada S., Shen Y., Qiu Z.Y., The City College of New York, US

Numerical simulation is performed of motion and cluster formation of particles in a flowing suspension of particles in corn oil through a 60x120x3.0mm chamber with a spatially periodical electrode array. The chamber is rotated to [...]

Dielectrophoretic characterization and separation of metastatic variants of small cell lung cancer cells

Menachery A., Burt J., Chappell S., Errington R.J., Morris D., Smith P.J., Wiltshire M., Furon E., Pethig R., Bangor University, UK

In this study, the ability of Dielectrophoresis (DEP) to recognize phenotypic variants of small cell lung cancer (SCLC) cells has been tested. The phenotypic variations of the SCLC cells are associated with the cell-surface decoration [...]

A capillary effect based microfluidic system for high throughput screening of yeast cells

Mirzaei M., Juncker D., McGill University, CA

Microfluidic systems have been developed and used for high throughput cell-based assays successfully. However, these systems require complicated peripherals and a computer to control the flow, which limits their adoption by biologists. Here, we propose [...]

Experimental and Numerical Studies of Droplet and Particle Formation in Electrohydrodynamic Atomization

Hua J., Lim L.K., Wang C-H, Institute of High Performance Computing, SG

Electrohydrodynamic Atomization (EHDA) is a method to disperse liquid jet into micro- droplets where an electrical field is applied to control the breakup characteristic of the liquid jet. Recent studies show that EHDA method is [...]