Manipulation of herpes simplex virus type 1 by dielectrophoresis

Dielectrophoretic Behavior of Latex Nanospheres: Low-Frequency Dispersion

“…Unlike the diffuse layer, the Stern layer is of fixed size and charge, these being dictated by the surface charge density of the particle. Hence, the frequency of the dielectric dispersion would be expected to be stable over a range of medium conductivities; this is observed in the experimental data published on the subject (5,6,12,(16)(17)(18). Furthermore, the dispersion frequency has been observed to vary linearly with predicted surface conductance Ks i for latex beads with functionalised surfaces (12) and herpes simplex viruses in a variety of biophysical states (18).…”

The Influence of Stern Layer Conductance on the Dielectrophoretic Behavior of Latex Nanospheres

“…Analysis of the crossover frequency as a function of medium conductivity can be used to characterize the polarizability and as a result the dielectric properties of a particle. This method of dielectrophoretic analysis has been demonstrated on sub-micrometer particles such as latex beads (5,6) and viruses (7)(8)(9).…”

Water quality test based on dielectrophoretic measurements of fresh water algae Selenastrum capricornutum

“…Following the determination of the collection rate, the Clausius-Mossotti factor was fitted to the collection spectra was modelled using the multi-shell model 11 ; this method has been applied to yeast cells 12 , viruses 13 , cancer cells 9 and drug-resistant and drug-sensitive bacteria 10 , latex beads 14 Blue test showed that the visible cells were alive and hence not affected by the CuSO 4 ; modelling the data showed that the effective dielectric properties of these cells were the same as those of the untreated cells. However, some cells were observed exhibiting negative dielectrophoresis, which was not observed in the untreated cells and indicating that a population of the algae had changed in their dielectric properties significantly enough to prevent them collecting at the electrode edges.…”