Improved sample cartridges, valve assemblies and methods of manufacture and assembly are provided herein. Such systems can include a sample processing cartridge having a unitary cartridge body with integral syringe tube and valve interface. Such systems can further includes valve assemblies with an overmolded gasket and gaskets with a protruding conical valve sealing surface. Various additional features can include thin film sealing for cartridge as well as valve assemblies for chemical lysis. Thin film sealing for cartridge lids can include various multi-layered designs to facilitate injection and sealing of reagents within the cartridge. Magnetic separation features are also included. Such features can be included in various design iterations as needed for compatibility with existing technologies and to accommodate needs for manufacturing workflows.

Testing devices are provided for detecting the level of one or more analytes in a fluid. In an example, a testing device includes a fluid collection device adapted to collect a fluid, and an assembly including a filter coupled to a test matrix, the test matrix including one or more lateral flow strips adapted to optically indicate a level of one or more analytes in the fluid, where the fluid collection device is configured to supply the fluid to the one or more lateral flow strips via the filter.

Described herein is a bias-free high-throughput and high-yield continuous isoelectric fractionation (CIF) nanocarrier fractionation technique based on distinct isoelectric points. The nanocarrier fractionation platform is enabled by a robust and tunable linear pH profile provided by water-splitting at a bipolar membrane and stabilized by flow without ampholytes.

A method and microfluidic device to perform reservoir simulations using pressure-volume-temperature (“PVT”) analysis of wellbore fluids.

The particle trapping device according to the present invention comprises: a lead-in channel; a flattened channel disposed on the downstream side of the lead-in channel; a rectangular channel disposed on the downstream side of the flattened channel; and a particle pit trap disposed at least on a first inner wall face of the rectangular channel, wherein the lead-in channel has a channel cross-section larger than a channel cross-section of the flattened channel; the flattened channel has a flat channel cross-section whose the width is longer than its height; the rectangular channel has a rectangular channel cross-section, and is provided with the first inner wall face, a second inner wall face opposed to the first inner wall face, a third inner wall face, and a fourth inner wall face opposed to the third inner wall face; and the lead-in channel, the flattened channel, the rectangular channel, and the particle pit trap are characterized by being configured in such a way that a portion of liquid containing target particles and flowing through the lead-in channel flows into the flattened channel; the target particles contained in the liquid that had flowed through the flattened channel flow into the rectangular channel; and the target particle that had flowed through the rectangular channel enters into the particle pit trap and is trapped therein.

A fine object separation device includes: a first channel in which a subject solution including a plurality of different fine objects having a size of 1 micrometer or less flows in from one side and flows to the other side; and a second channel that communicates with a first wall surface of the first channel at an angle greater than 0°, parallel to the flow direction of the subject solution, and less than 90°, perpendicular to the flow direction of the subject solution, wherein the second channel merges a buffer solution with the first channel.

A blood sample collection and/or storage device includes a two-piece housing that encompasses a port at which a fingertip blood sample is collected. After the sample is taken, the two-piece housing is moved to a closed position to protect the sample for storage and optionally process the sample within the housing. The housing may also be opened to access the stored sample for further processing.

Described herein are microfluidic devices and methods that can greatly improve cell quality, streamline workflows, and lower costs. Applications include research and clinical diagnostics in cancer, infectious disease, and inflammatory disease, among other disease areas.

The invention generally relates to methods for quantifying an amount of enzyme molecules. Systems and methods of the invention are provided for measuring an amount of target by forming a plurality of fluid partitions, a subset of which include the target, performing an enzyme-catalyzed reaction in the subset, and detecting the number of partitions in the sunset. The amount of target can be determined based on the detected number.

A fluidic device (100) is described for locally coating an inner surface of a fluidic channel. The fluidic device (100) comprises a first (101), a second (102) and a third (103) fluidic channel intersecting at a common junction (105). The first fluidic channel is connectable to a coating fluid reservoir and the third fluidic channel is connectable to a sample fluid reservoir. The fluidic device (100) further comprises a fluid control means (111) configured for creating a fluidic flow path for a coating fluid at the common junction (105) such that, when coating, a coating fluid propagates from the first (101) to the second (102) fluidic channel via the common junction (105) without propagating into the third (103) fluidic channel. A corresponding method for coating and for sensing also has been disclosed.