The present invention relates to the field of micro fluidics. Specifically, the present invention relates to a novel flow cell for the selective enrichment of target particles or cells from a fluid. The flow cell exhibits a novel design which greatly improves the target particle or cell yield. The invention also provides a micro fluidic device, comprising the flow cell according to the invention. In another aspect, the invention relates to the use of a flow cell or a micro fluidic device of the invention for the isolation of target particles or cells from a fluid sample. Finally, the invention relates to a method for the selective enrichment of target particles or cells from a fluid using the flow cell of the invention.

The present invention relates to the field of micro fluidics. Specifically, the present invention relates to a novel flow cell for the selective enrichment of target particles or cells from a fluid. The flow cell exhibits a novel design which greatly improves the target particle or cell yield. The invention also provides a micro fluidic device, comprising the flow cell according to the invention. In another aspect, the invention relates to the use of a flow cell or a micro fluidic device of the invention for the isolation of target particles or cells from a fluid sample. Finally, the invention relates to a method for the selective enrichment of target particles or cells from a fluid using the flow cell of the invention.

The disclosure describes methods and devices with which to process and analyze difficult chemical, biological, environmental samples including but not limited to those containing bulk solids or particulates. The disclosure includes a cartridge which contains a separation tube as well as one or more valves and cavities for receiving raw sample materials and for directing and containing various fluids or samples. The cartridge may contain a separation fluid or density medium of defined density, and structures which direct particulates toward defined regions of the cartridge. Embodiments can include a rotational device for rotating the cartridge at defined rotational rates for defined time intervals. Embodiments allowing multiple assays from a single sample are also disclosed. In some embodiments, this device is used for direct processing and chemical analysis of food, soil, blood, stool, motor oil, semen, and other samples of interest.

The disclosure describes methods and devices with which to process and analyze difficult chemical, biological, environmental samples including but not limited to those containing bulk solids or particulates. The disclosure includes a cartridge which contains a separation tube as well as one or more valves and cavities for receiving raw sample materials and for directing and containing various fluids or samples. The cartridge may contain a separation fluid or density medium of defined density, and structures which direct particulates toward defined regions of the cartridge. Embodiments can include a rotational device for rotating the cartridge at defined rotational rates for defined time intervals. Embodiments allowing multiple assays from a single sample are also disclosed. In some embodiments, this device is used for direct processing and chemical analysis of food, soil, blood, stool, motor oil, semen, and other samples of interest.

The invention relates to a feed unit (1) for a fuel cell system (31) for feeding and/or controlling a gaseous medium, in particular hydrogen, comprising a jet pump (4), which is driven by a propelling jet of a gaseous medium under pressure, an outlet of the feed unit being fluidically connected to an anode inlet (5) of a fuel cell (32). The jet pump (4) has an intake region (7), a mixing tube (9) and a diffuser region (11), and the gaseous medium flows through the jet pump in a flow direction (III) which runs parallel to a longitudinal axis (52) of the jet pump (4), and the diffuser region (11) is at least indirectly fluidically connected to the anode inlet (5) of a fuel cell (32). The jet pump (4) has a housing assembly (6), the housing assembly (6) having the components main body (8) and mixing tube insert (17), resulting in particular in a modular design of the jet pump (4).

The invention relates to a feed unit (1) for a fuel cell system (31) for feeding and/or controlling a gaseous medium, in particular hydrogen, comprising a jet pump (4), which is driven by a propelling jet of a gaseous medium under pressure, an outlet of the feed unit being fluidically connected to an anode inlet (5) of a fuel cell (32). The jet pump (4) has an intake region (7), a mixing tube (9) and a diffuser region (11), and the gaseous medium flows through the jet pump in a flow direction (III) which runs parallel to a longitudinal axis (52) of the jet pump (4), and the diffuser region (11) is at least indirectly fluidically connected to the anode inlet (5) of a fuel cell (32). The jet pump (4) has a housing assembly (6), the housing assembly (6) having the components main body (8) and mixing tube insert (17), resulting in particular in a modular design of the jet pump (4).

Provided are a refractory article, an anti-redox coating composition, and a method of manufacturing the refractory article. The refractory article includes: a platinum (Pt)-based substrate; and a coating layer for preventing a redox reaction on a surface of the Pt-based substrate, wherein the coating layer for preventing a redox reaction includes on an oxide basis SiO.sub.2 in an amount of about 40 wt % to about 70 wt %, Al.sub.2O.sub.3 in an amount of about 20 wt % to about 52 wt %, B.sub.2O.sub.3 in an amount of about 3 wt % to about 6 wt %; and CaO in an amount of about 2.4 wt % to about 4.8 wt %.

Provided are a refractory article, an anti-redox coating composition, and a method of manufacturing the refractory article. The refractory article includes: a platinum (Pt)-based substrate; and a coating layer for preventing a redox reaction on a surface of the Pt-based substrate, wherein the coating layer for preventing a redox reaction includes on an oxide basis SiO.sub.2 in an amount of about 40 wt % to about 70 wt %, Al.sub.2O.sub.3 in an amount of about 20 wt % to about 52 wt %, B.sub.2O.sub.3 in an amount of about 3 wt % to about 6 wt %; and CaO in an amount of about 2.4 wt % to about 4.8 wt %.

A device for dispersing a water-soluble polymer in powder form having a standard particle size of less than 1 mm, includes: a wetting chamber, a chamber for grinding and discharging the dispersed polymer with a horizontal axis of revolution, and a mechanism for connecting the wetting chamber to the grinding chamber in the form of an L-shaped tube. The upper and lower parts of the wetting chamber and the L-shaped tube have an internal surface with an identical surface tension (TS1). The cover of the wetting chamber has an internal surface with a surface tension (TS2) higher than the surface tension (TS1) of the internal surface of the upper and lower parts of the wetting chamber and the L-shaped tube.

Systems and method for producing a small-scale mixer are provided. In some implementations, a method for includes obtaining dimensions of an at-scale mixer. The method also includes determining first dimensions of the small-scale mixer based on respective dimensions of the at-scale mixer. The method further includes determining second dimensions of the small-scale mixer independent of the dimensions of the at-scale mixer. Additionally, the method includes generating the small-scale mixer using the first dimensions and the second dimensions using a three-dimensional printer.