Electro- and Magneto-hydrodynamic Manipulation of Particles Suspended in Fluids

Dear Colleagues,

The focus of this Special Issue is on the techniques that employ an externally applied electric or magnetic field to electro- and magneto-hydrodynamically manipulate particles, droplets, biological cells and tissues, macromolecules, etc., suspended in liquids. The goal can be to position, move, or collect particles at a certain location within the device, separate two or more types of particles, or remove particles from the suspending liquid. The electric field can be spatially uniform or nonuniform (mutual dielectrophoresis) and time-dependent. In a nonuniform electric field, positively polarized particles collect at the local maxima of the electric field, and negatively polarized particles at the local minima. In a uniform electric field, the particles rearrange relative to each other because of their polarization and interaction with each other. In recent years, novel microfluidic devices have been developed for trapping and separating nano-to-micron-sized particles in liquids, including biological cells and macromolecules. This Special Issue will also focus on the experimental and theoretical techniques aimed at modeling the various factors, e.g., fluid dynamic forces, dielectric mismatch, frequency of electric field, etc., that collectively determine the effectiveness of these techniques.

We welcome theoretical, numerical, and experimental contributions.

Dr. Pushpendra Singh
Dr. Shriram Pillapakkam
Guest Editors

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