Abstract:
An apparatus for sorting particles of multiple kinds having different properties in a fluid includes a flow channel for conveying the fluid containing the particles, multiple sorting regions provided in the flow channel for sorting the particles according to their properties, and sorting means provided in each of the sorting regions. The sorting means is capable of sorting particles having the same property by utilizing a difference in attraction force caused by a difference in property between particles.
Abstract:
Single stage and cascaded stage magnetophoretic microseparators are disclosed that efficiently separate blood cells from whole blood based on their native magnetic properties using a high gradient magnetic field without the use of additives such as magnetic tagging or fluorescent dyes. The microseparators are fabricated using microfabrication methods, enabling integration of micro-scale magnetic flux concentrators in an aqueous microenvironment, providing strong magnetic forces, and fast separations.
Abstract:
A magnetic separation unit can prevent any magnetic flocs deposited on an inner wall of a water passing pipe from closing a water channel for stabilizing a magnetic separation performance and reduce cost by a small-diameter portion of the water passing pipe. The magnetic separation unit has an air-core solenoid type magnet provided around the water passing pipe guiding, from a lower side, treated water including magnetic flocs in which contaminants and magnetic particles are flocculated, a rotating disc type magnetic filter case provided above the air-core solenoid type magnet for attracting the magnetic flocs in the treated water supplied from the water passing pipe and flushing means for flushing the matrixes to which the magnetic flocs are attracted. The water passing pipe has a small-diameter pipe positioned in the air-core solenoid type magnet, and an enlarged pipe enlarged from the small-diameter pipe toward a water passing part of the rotating disc type magnetic filter case.
Abstract:
The magnetic separator has a tank with a pair of dual conveyor chains, spaced apart, at opposite sides of the tank. A plurality of frames with spaced apart magnetic rods are suspended from the conveyor chains in a manner allowing the frames to swivel and always hang vertically as the chains traverse their endless path. The liquid in the tank flows through the frames and ferrous particles are attracted to the magnetic rods. The rods are cleaned and the ferrous particles removed at a wiping station. Each frame has a scraping edge which contacts the bottom of the tank and drags out the non-magnetic particulate which has separated from the liquid.
Abstract:
In accordance with the invention, a surface is provided with a plurality of microscale magnets (“micromagnets”) disposed on a surface in a pattern to form a desired distribution of magnetic field strength. Cells and magnetic nanowires are attached, immersed in fluid, and flowed over the pattern. The nanowires and their bound cells are attracted to and bound to regions of the pattern as controlled by the geometry and magnetic properties of the pattern, the strength and direction of the fluid flow, and the strength and direction of an applied magnetic field.
Abstract:
A magnetic filter removes magnetic particles from fluid communicated through the filter. The filter includes elongated, circumferentially spaced magnetic elements which capture magnetic particles entrained in the turbulent passing fluid. The magnetic elements must be cleaned periodically to remove the particles from the elements by moving a scraper plate from one end of the housing to the other. At the end of travel of the scraper plate, the particles are scraped upon non-magnetic end portions (which may contain residual magnetism) of the magnetic elements, from which they are flushed by fluid communicated through the inlet port out through other ports provided on the housing.
Abstract:
The present invention relates to an apparatus for an integrated process of magnetic particles and a method of controlling the same, for executing a process for magnetic particles incorporated in a fluid in an integrated state. The present invention aims to provide an apparatus for an integrated process of magnetic particles and a method of controlling the same, that can promptly and efficiently process all together in high precision, with the process of magnetic particles integrated. The apparatus for an integrated process of magnetic particles comprises a reservoir body provided with plural pit-like reservoirs for storing a drawn liquid arranged in a matrix, a sliding body with jutting plural sliding projections sliding through the reservoirs and capable of moving vertically to and from the reservoir body, plural nozzles attached to the lower parts of the reservoirs and capable of passing the liquid therethrough, a magnetic force device capable of magnetization and demagnetization having plural through sections in which is inserted each nozzle and having a wall part in contact with or near the outer side surface of the nozzle, with the nozzles inserted thereinto, wherein each wall part has two divided wall parts being apart from one another in such a manner that the divided wall parts have opposite polarities by magnetization, respectively.
Abstract:
Generally, a magnetically enhanced oil filter apparatus includes a cartridge housing which includes an oil input channel and an outlet channel. The cartridge housing defines a cartridge interior space. A magnet unit is affixed to an outside portion of the cartridge housing, whereby a magnetic field from the magnet unit extends into the cartridge interior space providing an interior magnetic field zone. A hollow annular (e.g. cylindrical) filter element is employed. Filter positioning means are provided for supporting and positioning the hollow cylindrical filter element. Oil flow control means are positioned so that portions thereof enter the interior magnetic field zone, for directing oil flow to and from the hollow cylindrical filter element. In this respect, the oil flow control means are positioned with respect to the hollow cylindrical filter element and the interior magnetic field zone to divide the interior magnetic field zone into a pre-filtration magnetic treatment zone and a post-filtration magnetic treatment zone.
Abstract:
The present invention relates to magnetic particle separators using micromachined magnetic arrays and more particularly, to magnetic particle separators or manipulators using controlled magnetization on micromachined magnetic arrays for the separation of cells and other biological materials. The present invention also pertains to using such devices for the separation and analysis of biological materials for immunoassays, DNA sequencing, protein analysis, and biochemical detection applications. The present invention can also be viewed as a novel method for fabricating fully integrated permanent magnet components within any microelectromechanical system (nullMEMSnull) structures. The present invention also provides a magnetic particle separation and manipulation system for rapid separation and accurate manipulation of magnetic particles in two-dimensional electromagnetic arrays, which utilize high throughput biological analyses. A disposable cartridge can be produced in low cost using a low cost substrate such as plastic or other polymer, glass, or metal. Magnetic flux is generated by conventional or micromachined electromagnets a platform system consisting of magnetic flux sources, magnetic flux guidance, and a microprocessor control interface. By controlling direction of electric currents into inductors on the platform system, arbitrary magnetic poles can be generated on Permalloy structures of the cartridge to separate and manipulate magnetic particles. The magnetic particle separator and manipulator in the present invention can be easily combined with automated detection systems such as a fluorescent monitoring system.
Abstract:
A tank nullAnull has a fluid inlet, a fluid outlet, and a closure nullBnull wherein the tank may be positioned in line as a pressure vessel. A magnetic core assembly includes elongated permanent magnets nullCnull and magnet covers or tubes nullDnull constructed of non-magnetic material for collecting magnetic particles from a liquid. The core assembly is carried in the tank and is removable after the separate closure is removed from the tank. The method contemplates separating the magnets from the tubes for removal of the magnetic particles from the magnetic core assembly externally of the tank and independently of the closure.