Process and device for generating resonance phenomena in particle suspensions
First Claim
1. 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.
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Abstract
A method and a device 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, base on the fact that the multielectrode system forms with the particle suspension an electrical network, in which means of resonance are provided for creating a resonant increase 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.
78 Citations
19 Claims
- 1. 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.
- 8. Device 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 multielectrode system forms with the particle suspension an electrical network, in which resonance means are provided for creating a resonant increase 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, resonance means being formed by the capacitive and/or inductive design of the electrodes of the microelectrode system.
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18. 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, two or more field frequencies being modulated or used alternating with the same or opposite sense of rotation or translation and adjustable amplitude in that a resonant frequency is applied to ranges of the dielectric particle spectrum of said particles where the particle types differ.
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19. Device 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 multielectrode system forms with the particle suspension an electrical network, in which resonance means are provided for creating a resonant increase 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 electrodes on essentially planar, insulating mounts forming at least an open electrode system that has capacitive, inductive and resistive components connected through the particle suspension solution to at least one network-type oscillating circuit system, the electrode system being in the form of meanders and/or loops covered by the insulating layers, which form a network with altered influence of capacitive and/or inductive elements, whereby separate resonance regions influence one another.
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