Patent ID: 6056861
Filing Date: 2000-05-02
Classification: B03C,C12M,C12N,H02N

Abstract:
Method for position and/or type-selective control of the position and/or change of position of suspended particles in a multielectrode system by the effect of polarization forces that are induced in the particles by alternating electric fields in the multielectrode system, which particles comprise biological or synthetic objects with dimensions essentially corresponding to those of biological cells or cell organelles, viruses or macromolecules, characterized in that the polarization forces are amplified or reduced by increased resonance or damping of the field strength of the alternating electric fields at certain frequencies in at least one locally demarcated region of the multielectrode system, the alternating electric fields including alternating, rotating or traveling electric fields so that, in circular and/or linear multielectrode configurations, there is rotation, translation or positioning of particles induced by the principle of electrorotation, dielectrophoresis, levitation or traveling-wave technology, whereby certain frequency ranges of the particular motion are amplified or damped by the resonance phenomena.