Electrooptic and conductometric effects in colloids and suspensions in sinusoidally amplitude modulated sine-shaped electric fields

Behavior of yeast cells in aqueous suspension affected by pulsed electric field

“…The electric field application to colloidal suspensions generates a lot of interesting effects, which result in drastic changes of rheological, optical and electromagnetic properties of systems [1][2][3][4][5][6]. The external electric field polarizes the dispersed particles, enhances their attraction and aggregation [7][8][9], increases migration of the particles and the surrounding ions [10] and may cause deformation of the fluid particles [11].…”

Analysis of polydispersity of macromolecular and nanodisperse systems by electrooptical methods

“…in the opposite case. The functional corresponding to the constraints imposed on the solution can be written as (28) When all constraints imposed on the desired func tion are fulfilled simultaneously, the functional achieves its minimum (zero) value. The applied pen alty functions are the residuals of the initial equation and other integral equations, which are derived from the initial equation as well as the penalty functions on the distortion of boundary conditions and smoothness of the solution.…”

“…In the field given by Eq. (19), the dependence in the polydisprese colloidal system appears as [28] (20) Here, Dependences and are estimated experimentally with accuracy to a constant factor equal to the difference , because, in a low field, it cannot be estimated. Having solved Eqs.…”

“…(51) For the numerical solution of linear system of equa tions (28), the DGESVD procedure from the LAPACK software [41] is used. This procedure makes…”

The kinetics of inactivation of spheroidal microbial cells by pulsed electric fields

“…A rod-shaped tobacco mosaic virus (TMV, about 0.018 µm in diameter and 0.3 µm in length [57]) demonstrates a strong orientation, near to complete saturation of the optical birefringence, in the electric field as high as ≈4 kV/cm [54]. Electrooptical studies of rod-shaped E. coli suspensions [58,59] shows the existance of strong orientational ordering at electric fields of E < 1 kV/cm.…”