MAGNETICALLY ASSISTED PROCESSING OF A MEDIUM
First Claim
1. A method for processing a medium comprising target particles, said method comprising the following steps:
- a) providing a cartridge having a processing chamber;
b) providing a multipole magnetic field generator having at least four subunits, each subunit having a core with a top surface and a coil surrounding said core, wherein the top surfaces of all subunits are arranged adjacent to the cartridge;
c) filling the processing chamber with the medium comprising the target particles, wherein the filling is done before, during, and/or after adding magnetic particles (M) to the medium;
d) controlling the multipole magnetic field generator such that a time-variable magnetic field is generated that manipulates the magnetic particles and thus mixes the medium;
e) binding target particles of the medium to the magnetic particles;
f) controlling the multipole magnetic field generator such that the magnetic particles are attracted to a surface of the processing chamber and removing the remaining medium from the processing chamber.
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Accused Products
Abstract
The invention relates to a processing device (100) and a method for processing a medium in a processing chamber (121). The processing comprises the addition of magnetic particles (M) to the medium and the mixing of the medium by manipulating said magnetic particles with a time-variable magnetic field (B), particularly a partially oscillating or rotating field. The magnetic field (B) may be generated with a multipole magnetic field generator (110) comprising four subunits (111A,111B), each having a core (113A,113B) with a surrounding coil (112A,112B) and with a top surface (114A,114B), wherein all top surfaces of said subunits are preferably arranged in the same plane and wherein all cores are substantially parallel to each other.
14 Citations
17 Claims
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1. A method for processing a medium comprising target particles, said method comprising the following steps:
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a) providing a cartridge having a processing chamber; b) providing a multipole magnetic field generator having at least four subunits, each subunit having a core with a top surface and a coil surrounding said core, wherein the top surfaces of all subunits are arranged adjacent to the cartridge; c) filling the processing chamber with the medium comprising the target particles, wherein the filling is done before, during, and/or after adding magnetic particles (M) to the medium; d) controlling the multipole magnetic field generator such that a time-variable magnetic field is generated that manipulates the magnetic particles and thus mixes the medium; e) binding target particles of the medium to the magnetic particles; f) controlling the multipole magnetic field generator such that the magnetic particles are attracted to a surface of the processing chamber and removing the remaining medium from the processing chamber. - View Dependent Claims (10, 11, 12, 13, 15)
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2. A processing device for processing a medium comprising target particles, comprising:
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a cartridge with a processing chamber in which the medium can be provided; a multipole magnetic field generator with at least four subunits, each subunit having a core with a top surface and a coil surrounding said core, wherein the top surfaces of all subunits are arranged adjacent to the cartridge; a control unit by which individual drive currents can be supplied to the subunits of the multipole magnetic field generator, comprising drive currents by which a) magnetic particles are manipulated to mix a medium in the processing chamber; b) magnetic particles are attracted to a surface of the processing chamber. - View Dependent Claims (3, 4, 6, 7, 8, 9, 17)
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5. (canceled)
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14. (canceled)
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16. A processing device for processing a medium comprising target particles, comprising:
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a cartridge with a processing chamber in which the medium can be provided; a multipole magnetic field generator with at least four subunits, each subunit having a core with a top surface and a coil surrounding said core, wherein the top surfaces of all subunits are arranged adjacent to the cartridge; an additional magnetic field generator that is arranged opposite to the multipole magnetic field generator with respect to the processing chamber; a control unit by which individual drive currents can be supplied to the subunits of the multipole magnetic field generator and/or to the additional magnetic field generator.
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Specification