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2011 Video Archive

Microfluidic Gradient Formation by Maxwell-Wagner Polarization at an Aqueous Electric Interface

This work integrates components from AC electrokinetics, microfluidics, and cell biology to produce tunable spatial chemical gradients in a microfluidic device for studying directed cell migration....
 
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Electrospun Nanofibre - Free Floating Chaos

Electrospinning is a method of using high voltage electric fields to transform polymer solutions into nanofibre. The process involves applying high voltage (~10 kV) to a droplet of solution at the...
 
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Microfluidic Concentrator Microfluidic Concentrator

This movie shows a microfluidic concentrator to concentrate proteins in a micro-chamber by using a conducting ion exchange granule comprising of nano-pores or nano-channels permeable to ions. We...
 
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Conducting PDMS for cell manipulation Conducting PDMS for cell manipulation

Cells are the basic element in humans, animals and plants. As they are so tiny, the manipulation of these small matters is impossible with humans’ hands and we cannot even see them with bare...
 
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Micropillar Arrays for Analysis of Force Patterns in C. elegans Locomotion

Using a compilation of three clips, this video introduces a microdevice capable of constantly measuring the force of nematodes in motion. The system consists of a micropillar-based device made of...
 
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Self-propelling coalescing droplets

Microfluidic devices play an ever increasing role in nano- and biotechnologies. An emerging area of research in this technology-driven field is digital microfluidics which is based upon the...
 
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Electrokinetic Concentration and Separation of Particles in Microfluidic Reservoirs

This video exhibits the selective concentration and separation of 3 um particles from 1 um particles in the upstream reservoir of a straight microchannel. This size-based particle sorting arises...
 
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Electrothermal Flow in Insulator-Based Dielectrophoresis

In this video 600 nm fluorescent particles were used visualize the electroosmotic fluid flow in insulator-based dielectrophoresis devices. The interaction of Joule heating-induced fluid...
 
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