CISM International Centre for Mechanical Sciences

 

 

 
 

Electrokinetics and Electrohydrodynamics in Microsystems

Flyer of the course

Official page at CISM

 

Martin Z. Bazant (M.I.T., Boston, USA)

 5 lectures on: Induced-charge Electrokinetics. The lectures provide an introduction to nonlinear electrokinetic phenomena in microfluidics and colloids, driven by induced charge on polarizable surfaces in response to applied voltages.
  1. Introduction
  2. Low Voltage Theory
  3. Particle Motion
  4. Fluid Motion
  5. Large Voltage Theory

 

Chen Chuan-Hua (Duke University, Durham, NC, USA)

 6 lectures on: Electrohydrodynamics and Electrokinetic Flows. After reviewing the fundamentals of Taylor-Melcher leaky-dielectric model, we discuss the physics of electrokinetic flow instabilities and electrohydrodynamic cone-jet transitions, as well as the applications in microfluidic systems including electrophoretic separation and droplet generation.

Electrohydrodynamic (EHD) Instabilities:

The streaming version of these lectures can be watched using the username and password given during the course.

 

Nicolas G. Green (University of Southampton, UK)

 5 lectures on:Dielectrophoresis Theory. Lectures examine dielectric forces including dielectrophoresis, electroorientation, particle-particle interaction, electrorotation and travelling wave dielectrophoresis from first principles to the latest developments. Different analytical and numerical solution methods and different example geometries are studied. The strong influence of the Electrical Double Layer in aqueous media and the Brownian motion for nanoparticles is also analysed.

 

Hywel Morgan (University of Southampton, UK)

 5 lectures on: Dielectrophoresis Applications. The lectures start with some basic concepts of electrical forces on particles (including nano-particles) in suspension. They then progress onto practical applications in Microsystems and the Lab on Chip, from micro-fabrication techniques for microfluidic chips to single particle manipulation and spectroscopic methods.

 

Frieder Mugele (University of Twente, The Netherlands)

 5 lectures on: Electrowetting: theory and applications. After repeating the basic concepts of wetting, we discuss the physical principles of electrowetting (EW) for both equilibrium and dynamic situations. On this basis, we discuss various applications of EW, including Lab-on-a-Chip, optics, displays and MEMS.

 

Antonio Ramos (University of Seville, Spain)

 6 lectures on: Electrohydrodynamic Micropumps. The lectures start with some basic aspects of electrical conduction in liquids and some basic fluid-mechanic aspects of micropumps. We describe the physics of the different kinds of electrohydrodynamic actuation and examine how the different pumping techniques depend on the conductivity of the working liquid.