Acoustophoretic focusing effects on particle synthesis and clogging in microreactors

Numerical Analysis of Acoustophoretic Discrete Particle Focusing in Microchannels

Acoustophoretic particle focusing is a modern and very attractive method of removing a variety of objects from solutions in a microfluidic channel. The process is inherently general and can be readily extended to multiple types of applications such as healthcare (e.g. malignant cell removal), academic research (e.g. nanoparticle separation), industrial (e.g. reclaiming of rare earths) and envir...

Viscoelastic effects on electrokinetic particle focusing in a constricted microchannel.

Focusing suspended particles in a fluid into a single file is often necessary prior to continuous-flow detection, analysis, and separation. Electrokinetic particle focusing has been demonstrated in constricted microchannels by the use of the constriction-induced dielectrophoresis. However, previous studies on this subject have been limited to Newtonian fluids only. We report in this paper an ex...

Particle Clogging in Radial Flow: Microscale Mechanisms

Fluid-flow-driven particle migration through porous networks reflects the interplay between various particle-level forces, the relative size between migrating particles and pore constrictions, and the spatial variability of the velocity field. Experimental evidence shows that particle migration in radial fluid flow results in selfstabilizing annular clogging patterns when the particle size appr...

Nanoparticle Synthesis in Vesicle Microreactors

Microreactors in Organic Synthesis and Catalysis