A filtration separator for magnetic particles includes a storage tank that stores a liquid in which magnetic particles are dispersed, and that has a bottom portion and a side wall portion, a stirring mechanism having a rotating shaft portion inserted into the storage tank in a direction crossing a face of the bottom portion, and a stirring impeller that is coupled to the rotating shaft portion and that stirs the liquid by rotation of the rotating shaft portion, a magnet mechanism that is provided in at least a part of the side wall portion, and that can switch a magnetic force in the storage tank between an on state and an off state, and that adsorb the magnetic particles in the liquid to the side wall portion when it is in the on state, and a filtration mechanism having a filter provided in the bottom portion of the storage tank, and a discharge port from which the liquid after passing through the filter is discharged.

A hybrid superconductive device for stabilizing an electric grid comprises (a) a magnetic core arrangement at least partially carrying an AC winding the AC winding connectable to an AC circuit for a current to be limited in the event of a fault; (b) at least one superconductive coil configured for storing electromagnetic energy; the superconductive coil magnetically coupled with the core arrangement and saturating the magnetic core arrangement during use. The hybrid superconductive device further comprises a switch unit preprogrammed for switching electric current patterns corresponding to the following modes: at least partially charging the superconductive coil; a standby mode when the superconductive coil is looped back; and at least partially discharging the superconductive coil into the circuit. Optionally, hybrid superconductive device comprises at least one passage located within said magnetic flux. The passage conducts a material flow comprising components magnetically separable by said magnetic flux.

The present invention relates to compositions comprising magnetic particles, the methods of using these compositions in processing animal sperm, the resulting sperm and embryo products, and the methods of use of these compositions to increase the efficiency, efficacy and/or speed of cell processing and artificial insemination techniques.

Devices, systems, and their methods of use, for sorting or separating magnetic particles are provided. A magnetic source, e.g., with at least one sharp feature, can be employed to exert a strong magnetic field on magnetic particles in order to separate particles of a desired and predictable property.

An apparatus and method for extracting nucleic acids such as DNA molecules from biological samples uses solid-state magnetic manipulation. A fluid sample and magnetic beads are placed in a vessel. The vessel is placed in a housing with an array of electromagnets mounted therein. The electromagnets are energized sequentially or in groups to move the magnetic beads through the fluid sample in a variety of patterns. The apparatus disclosed herein may be used as a measurement device to measure bead number density and modify magnetic patterns in order to deliver consistent dosages in bead number.

A fluid pipe magnetization unit includes a ferromagnetism casing, a plurality of magnetic rods, and at least one flow limiting element. The magnetic rods include at least one first magnetic rod and at least one second magnetic rod. Inner elements of the first magnetic rod and the second magnetic rod are alternately positioned with opposite magnetic poles in the ferromagnetism casing. The at least one flow limiting element is arranged in at least one weak magnetic area in the ferromagnetism casing to prevent fluid from flowing through the at least one weak magnetic area. In addition, a fluid pipe magnetization device with the same is also disclosed herein.

Method for detecting the presence or absence of a biological or chemical substance in a particular sample mixed with a suspension with functionalized magnetic particles, comprising: providing a light source and detector, providing a constant magnetic force perpendicular to the light's propagation direction by applying a constant magnetic field gradient, and with an absolute value which is higher than 0.1 T and measuring the change of the magnetic particle's suspension transparency versus time and comparing it with the time-variation in absence of the targeted biological or chemical substance. The method of the invention allows monitoring the transparency irrespective of the emitted wavelength and particle's optical properties.

The disclosure describes systems and methods for separating a plurality of molecular entities with differing densities. The system includes: a pair of magnetic poles of like polarity to provide a magnetic field; and a container holding the plurality of molecular entities in a fluid medium comprising nanoparticles that substantially change a magnetic susceptibility of the fluid medium such that, when the container is placed inside the magnetic field, sufficient gradients in an effective density of the fluid medium are generated inside the container to levitate the plurality of molecular entities to respective layers within the container, each respective layer corresponding to a respective density.

In at least one illustrative embodiment, an electromagnetic filter may include a transfer pipe and multiple electromagnetic filter elements positioned in an interior volume of the pipe. Each electromagnetic filter element includes a support comb, a solenoid coupled to the support comb, and multiple magnetic members arranged in a planar array positioned within an opening of the support comb. Each magnetic member may rotate about an end that is coupled to the support comb. The magnetic members may be magnetostrictive sensors and may include a biorecognition element to bind with a target microorganism. A method for fluid filtration includes coupling the electromagnetic filter between a fluid source and a fluid destination, energizing the solenoids of each electromagnetic filter elements, and flowing a fluid media through the transfer pipe of the electromagnetic filter. The fluid media may be liquid food such as fruit juice. Other embodiments are described and claimed.

The current invention relates to the method and apparatus to magnetically separate biological entities with magnetic labels from a fluid sample. The claimed magnetic separation device removes biological entities with magnetic labels from its fluidic solution by using a soft-magnetic center pole with two soft-magnetic side poles. The claimed device further includes processes to dissociate entities conglomerate after magnetic separation.