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Deformation Of Biological Cells By Electric Fields

Human erythrocytes have been observed to undergo shape changes when subjected to low frequency electrical fields. It has been suggested that the observed deformation is due to the mechanical stresses induced by the electrical fields on the cell membrane. These mechanical stresses surface distribution can be calculated by means of the Maxwell‘s Stress Tensor. The cell membrane is assumed to be an incompressible material whose deformation is asociated with both bending and shear energies. The principle of virtual work is employed to compute the cellular shape and volume as a function of the external field strengths and strengths and the orientation of the cell with respect to the field.