A method for performing a magnetic separation procedure that includes transporting a receptacle containing a fluid medium to a first location of a system, where the fluid medium contains both a sample material and a suspension of magnetically-responsive solid supports. At the first location, the fluid medium is exposed to a first magnetic field for a first dwell period, thereby isolating the solid supports within the receptacle, where no portion of the fluid medium is removed from the receptacle at the first location. The receptacle is then transported from the first location to a second location of the system, where the fluid medium is exposed to a second magnetic field for a second dwell period. Following the second dwell period, at least a portion of the fluid medium is removed from the receptacle. A suspension fluid is then dispensed into the receptacle, and the contents of the receptacle are agitated to suspend the solid supports within the suspension fluid.

Methods are provided for separating magnetically responsive beads from a droplet in a droplet actuator. Droplet operations electrodes and a magnet are arranged in a droplet actuator to manipulate a bead-containing droplet and position it relative to a magnetic field region that attracts the magnetically responsive beads. The droplet operations electrodes are operated to control the droplet shape and transport it away from the magnetic field region to form a concentration of beads in the droplet. The continued transport of the droplet away from the magnetic field causes the concentration of beads to break away from the droplet to yield a small, concentrated bead-containing droplet immobilized by the magnet.

A magnetic rod guide for a filter comprises a base for attachment to part of a filter, a through aperture through which a magnetic rod can move, and resilient engagement means including at least one resilient latch for holding the magnetic rod in one or more fixed positions relative to the guide, the or each resilient latch further being adapted to allow movement of a magnetic rod through the through aperture in either direction, for insertion into the filter or withdrawal from the filter into one of the fixed positions.

A magnetic filter for a central heating system is disclosed, the filter including a separation chamber, a magnet for capturing magnetic particles within the separation chamber, an inlet for fluidly connecting to a central heating system circuit, an outlet for fluidly connecting to a central heating system circuit, and a single valve operable to select between at least two positions, the valve in a first position fluidly connecting the inlet to the separation chamber and fluidly connecting the outlet to the separation chamber and the valve in a second position isolating both the inlet and the outlet from the separation chamber.

The invention relates to a method for the chip-removing production or machining of a workpiece by means of a tool, in which method a liquid, which mixes and accumulates with the chips produced during the machining process, is used for lubricating and/or cooling the machining process, and the chips are discharged from the accumulation counter to the downhill force along a discharge path by means of a magnetic force, wherein a return flow of the liquid carried by the discharged chips occurs due to the downhill force, and the return flow is deflected out of the discharge path and/or the discharge path has at least one point at which the supporting surface is temporarily withdrawn from the discharged chips.

A filtration system is provided that includes a gearbox positioned in a geared turbofan engine. The system further includes an auxiliary lubrication system positioned in the geared turbofan engine and in fluid communication with the gearbox. The auxiliary lubrication system includes an auxiliary reservoir, an auxiliary pump in fluid communication with the auxiliary reservoir, an auxiliary return line extending between the gearbox and the auxiliary reservoir, the auxiliary return line configured to transport a lubricant from the gearbox to the auxiliary reservoir, and an auxiliary supply line extending between the auxiliary pump and the gearbox, the auxiliary supply line configured to transport the lubricant from the auxiliary pump to the gearbox. The system further includes a non-removable filter positioned in the auxiliary lubrication system. The non-removable filter is configured to prevent or limit debris that is suspended in the lubricant from flowing into the gearbox and/or the auxiliary pump.

An apparatus, vortex generator assembly and method for automated cell lysis and nucleic acid purification and processing. The vortex generator assembly includes sample holder having a lysis well, at least one wash well, and an elution well. The vortex generator assembly also includes a sample holder cover having a plurality of vibration rods for creating a vortex in the wells of the sample holder. The apparatus includes motor operating a rotating cam to cause the vibration rods to vibrate and create the vortex in a well holding fluid and magnetic beads, wherein the vortexing speed is sufficient to overcome the magnetic attraction between the beads and disperse the beads in solution, to collect nucleic acids such as DNA.

A filter is used for removing metallic contaminants in a solvent used in microcircuit fabrication. The filter includes a filter housing including a filter membrane for filtering solvent including metallic contaminants, and a magnet arranged about the filter housing and configured to generate a magnetic field to attract the metallic contaminants prior to the metallic contaminants entering the filter membrane. The magnet is arranged such that the magnetic field of the magnet is greater in a periphery of the filter housing compared to a central portion of the filter housing.

An integrated nucleic acid processing apparatus includes a first operation area, a second operation area and a separation wall. The first operation area includes multiple carrying boards for placing objects and reagents for processing nucleic acids in samples, and multiple operation modules for performing operations of nucleic acid processing. The second operation area includes two extraction regions for respectively performing nucleic acid extractions. The separation wall separates the first operation area from the second operation area and includes two openable door sheets spatially corresponding to the two extraction regions. Nucleic acid extraction plates can be moved from the first operation area to the second operation area by means of the carrying boards as the two openable door sheets are opened, and be isolated in the second operation area for performing nucleic acid extractions as the two openable door sheets are closed.

The present disclosure describes a filtration device that includes a housing that includes a first tubular section connected to a second tubular section, wherein the first tubular section extends along a longitudinal axis and includes an open end that forms a fluid inlet of the housing, a closed end opposite the open end, and a connection opening positioned between the open and closed ends, and wherein the second tubular section includes a first open end connected to the connection opening of the first tubular section and a second open end that forms a fluid outlet of the housing; and a filter that is arranged inside of the first tubular section and that extends along the longitudinal axis of the first tubular section; wherein the filter includes an electromagnet configured to generate a magnetic field that surrounds at least the first tubular section and attracts metal contaminants in a fluid to the filter. A filter system is also described.