In a magnetic particle operation device 1, a plurality of liquid layers 11 and a plurality of gel-like medium layers are alternately arranged. Magnetic particles 13 are introduced into the uppermost liquid layer 11 of the magnetic particle operation device 1, and a holding magnet 60 is in contact with the outer surface of the bulging portion 21 of the container 20. Therefore, during the storage of the device 1, the magnetic particles 13 in the bulging portion 21 are aggregated and held at a position facing the holding magnet 60 in the sample introduction space by the magnetic force of the holding magnet 60. As a result, during the storage of the device 1, the magnetic particles 13 can be prevented from being brought into contact with the gel-like medium layer 12. Further, when the device 1 is used, the magnetic particles 13 can be dispersed in the liquid layer 11 by moving the holding magnet 60 away from the container 20.

In a magnetic particle operation device 1, a plurality of liquid layers 11 and a plurality of gel-like medium layers are alternately arranged. Magnetic particles 13 are introduced into the uppermost liquid layer 11 of the magnetic particle operation device 1, and a holding magnet 60 is in contact with the outer surface of the bulging portion 21 of the container 20. Therefore, during the storage of the device 1, the magnetic particles 13 in the bulging portion 21 are aggregated and held at a position facing the holding magnet 60 in the sample introduction space by the magnetic force of the holding magnet 60. As a result, during the storage of the device 1, the magnetic particles 13 can be prevented from being brought into contact with the gel-like medium layer 12. Further, when the device 1 is used, the magnetic particles 13 can be dispersed in the liquid layer 11 by moving the holding magnet 60 away from the container 20.

Magnetic cell levitation and cell monitoring systems and methods are disclosed. A method for separating a heterogeneous population of cells is performed by placing a microcapillary channel containing the heterogeneous population of cells in a magnetically-responsive medium in the disclosed levitation system and separating the cells by balancing magnetic and corrected gravitational forces on the individual cells. A levitation system is also disclosed, having a microscope on which the microcapillary channel is placed and a set of two magnets between which the microcapillary channel is placed. Additionally, a method for monitoring cellular processes in real-time using the levitation system is disclosed.

Magnetic cell levitation and cell monitoring systems and methods are disclosed. A method for separating a heterogeneous population of cells is performed by placing a microcapillary channel containing the heterogeneous population of cells in a magnetically-responsive medium in the disclosed levitation system and separating the cells by balancing magnetic and corrected gravitational forces on the individual cells. A levitation system is also disclosed, having a microscope on which the microcapillary channel is placed and a set of two magnets between which the microcapillary channel is placed. Additionally, a method for monitoring cellular processes in real-time using the levitation system is disclosed.

A magnetic separator includes: a scraper configured to channel a liquid through an opening portion to a flow pathway, the scraper extends from a sub-drum to the opening portion; a first bottom wall configured to channel the liquid along the flow pathway in a manner that channels the liquid away from the opening portion, the flow pathway is between a main drum and a curved surface of the first bottom wall; and a second bottom wall configured to channel the liquid along a lower flow path in a manner that channels the liquid to the opening portion, the lower flow path is between the sub-drum and a curved surface of the second bottom wall.

A magnetic separator includes: a scraper configured to channel a liquid through an opening portion to a flow pathway, the scraper extends from a sub-drum to the opening portion; a first bottom wall configured to channel the liquid along the flow pathway in a manner that channels the liquid away from the opening portion, the flow pathway is between a main drum and a curved surface of the first bottom wall; and a second bottom wall configured to channel the liquid along a lower flow path in a manner that channels the liquid to the opening portion, the lower flow path is between the sub-drum and a curved surface of the second bottom wall.

An intelligent magnetic microfluidic concentrator employs a technique of feeding ores circumferentially and allowing tailings to overflow centrally upward. The intelligent magnetic microfluidic concentrator comprises a sorting system consisting of an ore feeding chute, an overflow chute, an overflow tank, a sorting tank, and a magnetic system, the overflow tank is disposed at an upper portion of the sorting tank, the ore feeding chute is disposed at the top of the overflow tank, the ore feeding chute feeds an ore slurry to the upper portion of the sorting tank circumferentially along an inner wall of the sorting tank, and the tailings overflow out upward from the overflow tank disposed centrally and located at the upper half portion of the sorting tank. A magnetic microfluidic concentrator and a complete set of beneficiation equipment are also provided.

The present invention includes a method of controlling an oil spill through introduction of a plurality of magnetizable particles into the oil spill in an amount sufficient to form a colloidal mixture. An absorbent is also introduced into the oil spill to form an absorbent mixture. A magnetic field can be applied to the system to move, manipulate, or otherwise control the absorbent mixture in response to movement of the magnetic field.

The present invention includes a method of controlling an oil spill through introduction of a plurality of magnetizable particles into the oil spill in an amount sufficient to form a colloidal mixture. An absorbent is also introduced into the oil spill to form an absorbent mixture. A magnetic field can be applied to the system to move, manipulate, or otherwise control the absorbent mixture in response to movement of the magnetic field.

Embodiments of the present disclosure relate generally to systems and methods for sorting and analyzing cells and, more particularly, to systems and methods for sorting and analyzing cells using magnetophoresis in a microfluidic platform. Some embodiments of a microfluidic device comprise an inlet for receiving a plurality of magnetically-labeled cells, a flow chamber, a magnet positioned alongside the flow chamber, and a plurality of bins having a sensor for detecting the magnetically-labeled cells. In some embodiments, the magnetic flux of the magnet causes the magnetically-labeled cells to be deflected to a particular bin. The sensors of each bin can be used to calculate the surface antigen expression and/or size of the cells within a sample of magnetically-labeled cells.