Properties and electrokinetic behavior of non-dilute colloidal suspensions

Electrophoresis of concentrated colloidal dispersions in low-polar solvents

“…Additionally, real-space techniques allow for obtaining three-dimensional information during the measurements. This is useful because several additional phenomena can influence the structure and local volume fraction of the dispersion [25]. For example, particle polarization can result in string formation and flows can become unstable under certain conditions.…”

Investigation of the electrical conductivity of propylene glycol-based ZnO nanofluids

“…The electrical conductivity of a suspension depends on the background electrolyte and particle size, charge, and volume fraction [ 3 ]. Nanofluids often utilize metal oxide nanoparticles such as ZnO, TiO 2 , or Al 2 O 3 .…”

Particles in Microfluidic Systems

“…Particle interactions can have a substantial impact on fluid properties (conductivity, permittivity, viscosity, and density) and electrokinetic motion. 47 Volume fraction of particles affects electrophoretic mobility and the permittivity of the solution in electric fields. Higher electric fields interacting with nondilute suspensions can cause flow instabilities as demonstrated in Figure 7.6.…”

“…Much remains to be learned about nonlinear particle interactions at higher volume fractions in electrokinetic fields in microdevices. 47 For many analytical techniques, it is necessary to selectively focus particles and cells for analytical measurements. This is typically done with micro/nanonozzles or diffusers.…”