Patent classifications
B01L3/50273
FLOW CELL COMPRISING A STORAGE ZONE AND A DUCT THAT CAN BE OPENED AT A PREDETERMINED BREAKING POINT
A flow cell having at least one storage zone connected to a duct for conducting fluid out of, into or/and through the storage zone. The duct includes a duct section which is delimited by a substrate and a film joined to the substrate and in which the duct is sealed and can be opened at a predetermined breaking point by deflecting the film. The film covers a recess in the substrate which forms the duct section. A sealing wall that seals the duct and is integrally joined to the substrate is placed in the recess. The predetermined breaking point is formed by a breakable joining region between the film and an edge portion of the sealing wall facing the film. The dimensions of a peripheral area of the sealing wall is formed in the edge portion and runs parallel to the film determine the surface area of the joining region.
Operation of diagnostic devices involving microchannels and electrodes
An assembly is provided for interfacing with a microfluidic chip having at least one microscopic channel configured to receive a liquid sample for analysis. The assembly includes a chip carrier, an electronics module, an optical module, and a mechanical module. The chip carrier includes a base and a cover defining a cavity to receive the microfluidic chip. The electronics module includes a signal generator which applies at least one electrokinetic signal electrode(s) of the chip. The optical module includes an excitation radiation source which causes excitation radiation to impinge on the sample, and an emission radiation detector which detects radiation emitted from the sample. The mechanical module includes a chip-carrier receiving structure, relatable with respect to the optical module for focus and at least one degree of translational freedom.
MICROFLUIDIC DEVICES, SYSTEMS, AND METHODS
A microfluidic device includes a microfluidic substrate having a porous media channel, an oil inlet port in fluid communication with the porous media channel, a fluid inlet port in fluid communication with the porous media channel, and an outlet port in fluid communication with the porous media channel. The porous media channel has a plurality of dividers that provide the porous media channel with a network of fluid pathways. A method for assessing miscibility of an oil composition and a fluid includes flowing an aliquot of a fluid through a porous media channel to displace at least an oil composition from the porous media channel, and conducting an optical investigation of the porous media channel to assess the miscibility of the oil composition and the fluid at the test pressure and test temperature.
Binding assay with no wash steps or moving parts using magnetic beads
This present disclosure provides devices, systems, and methods for performing point-of-care analysis of a target analyte in a biological fluid via a binding assay. The present disclosure includes a cartridge for collecting the target analyte contained in a fluid sample and performing an assay. The cartridge includes an assay stack having a first separation layer, a second separation layer, and a detection membrane. The cartridge also includes a plurality of first complexes comprising a capture molecule and a magnetic bead and a plurality of second complexes comprising a detection molecule and a detection label. Further, the detection membrane includes a substrate that interacts with the detection label to elicit a quantifiable response in the presence of the target analyte. The quantifiable response corresponds to an amount of detection antibody present in the detection membrane, and the amount of detection antibody present corresponds to an amount of the target analyte present.
DRIVING CIRCUIT FOR ELECTROWETTING-ON-DIELECTRIC (EWOD) PIXEL AND EWOD SYSTEM USING THE SAME
A driving circuit for an electrowetting on dielectric (EWOD) pixel. The driving circuit includes a latch circuit for transmitting a source data pulse to a storage capacitor in response to an activation gate signal applied to the gate of the switch transistor and generating a latch voltage and an inversion circuit for outputting a driving voltage at either a first power voltage or a second power voltage based on the latch voltage generated by the latch circuit.
Systems, methods, and apparatuses to image a sample for biological or chemical analysis
A fluidic device holder configured to orient a fluidic device. The device holder includes a support structure configured to receive a fluidic device. The support structure includes a base surface that faces in a direction along the Z-axis and is configured to have the fluidic device positioned thereon. The device holder also includes a plurality of reference surfaces facing in respective directions along an XY-plane. The device holder also includes an alignment assembly having an actuator and a movable locator arm that is operatively coupled to the actuator. The locator arm has an engagement end. The actuator moves the locator arm between retracted and biased positions to move the engagement end away from and toward the reference surfaces. The locator arm is configured to hold the fluidic device against the reference surfaces when the locator arm is in the biased position.
Devices and methods for semen analysis
Provided herein are devices and methods for analysis of male fertility. The invention provides self-contained, hand-held receptacles and systems for collection and analysis of semen samples and methods of using such devices to analyze semen samples. Also provided are processor-implemented and machine learning methods of analyzing semen sample data obtained using devices of the invention.
Method and dispensing device for dispensed fluid output
A dispensing device which has a dispensing channel extending between a supply opening and an output opening into the course of which a pump, a selection valve and a dispensing valve are connected. The selection valve is also connected to a pressurised air source. The dispensing device allows a dispensed output of a fluid, wherein a buffer channel portion is filled by the pump in a pump dispensing phase, to which buffer channel portion pressure is applied from the pressurised air source during a pressurised air dispensing phase such that a precise fluid output is subsequently possible by clocked actuation of the dispensing valve until the target fluid amount has been reached.
Real-time cell-surface marker detection
Cell-separation systems and methods utilizing cell-specific microbubble tags and ultrasound-based separation are described. The methods are useful for simplification of time-consuming and costly cell purification procedures and real time apoptosis detection.
DEVICES FOR GENERATING PRE-TEMPLATED INSTANT PARTITIONS
The invention provides devices for generating pre-templated instant partitions. The devices may include a shearing mechanism, such as a vortexer, a holder for holding a vessel containing a liquid onto the vortexer, and a temperature control unit for modulating a temperature of the vessel by convection. The invention also provides methods of using such devices to process analyte inside the pre-templated instant partitions.