B01L2300/0864

Microfluidic devices with multiple inlets and outlets

Techniques regarding nanofluidic chips with a plurality of inlets and/or outlets in fluid communication with one or more nanoDLD arrays are provided. For example, one or more embodiments described herein can comprise a nanoscale deterministic lateral displacement array between and in fluid communication with a global inlet and a global outlet. The nanoscale deterministic lateral displacement array can further be between and in fluid communication with a local inlet and a local outlet. Also, the nanoscale deterministic lateral displacement array can laterally displace a particle comprised within a sample fluid supplied from the global inlet to a collection region that directs the particle to the local outlet. An advantage of such an apparatus can be the expanded versatility of the nanoscale deterministic lateral displacement array for sample preparation applications involving nanoparticles not accessible to other higher throughput microscale microfluidic technologies.

Diagnostic system

Methods and systems are provided for point-of-care nucleic acid amplification and detection. One embodiment of the point-of-care molecular diagnostic system includes a cartridge and an instrument. The cartridge can accept a biological sample, such as a urine or blood sample. The cartridge, which can comprise one or more of a loading module, lysis module, purification module and amplification module, is inserted into the instrument which acts upon the cartridge to facilitate various sample processing steps that occur in order to perform a molecular diagnostic test.

MICROFLUIDIC SERIAL DILUTION PLATFORM BASED WELL-PLATE USING AN OIL-FREE IMMISCIBLE PHASE DRIVEN BY MANUAL OR ELECTRONIC PIPETTORS
20210114022 · 2021-04-22 ·

Described is a microfluidic serial dilution platform based well-plate using an oil-free immiscible phase driven by manual or electronic pipettors. The well-plate includes a plurality of fluidic traps, a plurality of hydrophilic capillary constriction channels and a plurality of bypass channels. Each of the plurality of bypass channels is associated with one of the plurality of fluidic traps, each of the plurality of hydrophilic capillary constriction channels is associated with one of the plurality of fluidic traps, and each of the plurality of fluidic traps is associated with one of the plurality of bypass channels and one of the plurality of hydrophilic capillary constriction channels. The well-plate further includes an inlet, an outlet, and a main channel with a plurality of portions that connects the inlet to the plurality of fluidic traps, associated hydrophilic capillary constriction channels and associated bypass channels, and the outlet.

Continuous whole-chip 3-dimensional DEP cell sorter and related fabrication method

A 3-dimensional PDMS cell sorter having multiple passages in a PDMS layer that follow the same path in a DEP separation region and that are in fluid communication with each other within that region. The passages may differ in width transverse to the flow direction within the passages. Flat plates may sandwich the PDMS layer; each plate may have a planar electrode used to generate a DEP field within a sample fluid flowed within the passages. The DEP field may concentrate target cells or particulates within one of the passages within the DEP separation region. The passages may diverge after the DEP-separation region, leaving one passage with a high concentration of target cells or particulates. Techniques for manufacturing such structures, as well as other micro-fluidic structures, are also provided.

MICROFLUIDIC CHIP, BOX DEVICE, MICROFLUIDIC DEVICE
20230405587 · 2023-12-21 ·

The present disclosure provides a microfluidic chip, a box device adapted to the microfluidic chip, and a microfluidic device including the microfluidic chip and the box device. The microfluidic chip includes a first container for accommodating a first fluid, a second container for accommodating a second fluid, a delivery channel, a sorting channel and a collector. The delivery channel is shaped such that the first fluid and the second fluid merge at a confluence. The sorting channel includes a first sorting channel and a second sorting channel. The collector includes a first collector and a second collector.

METHODS AND APPARATUS FOR REMOVABLE NOZZLE WITH CAM LATCH ENGAGEMENT IN FLOW CYTOMETERS

A flow cell subassembly includes a carriage assembly coupled to a flow cell body to selectively engage a nozzle with a base of a cuvette. The carriage assembly includes a linear bearing slidingly engaged with the flow cell body, a tiltable carriage plate coupled to the linear bearing, and a nozzle mount coupled to the tiltable carriage plate. The nozzle mount receives a nozzle assembly with the nozzle. Set screws can adjust pitch angle of the tiltable carriage plate with the linear bearing to adjust engagement between the nozzle and cuvette in a first dimension. To adjust engagement between the nozzle and cuvette in a second dimension, axial play in bolts/screws through the tiltable carriage plate into threaded holes of the linear bearing allow for yaw angle adjustments.

MICROFLUIDIC SYSTEMS AND METHODS FOR REDUCING THE EXCHANGE OF MOLECULES BETWEEN DROPLETS

The present invention generally relates to systems and methods to create stable emulsions with low rates of exchange of molecules between microdroplets.

ASSAY CARTRIDGES AND METHODS OF USING THE SAME

Assay cartridges are described that have purification, reaction, and detection zones and other fluidic components which can include sample chambers, waste chambers, conduits, vents, reagent chambers, reconstitution chambers and the like. The assay cartridges are used to conduct multiplexed nucleic acid measurements. Also described are kits including such cartridges, methods of using the same, and a reader configured to analyze an assay conducted using an assay cartridge.

MICROFLUIDIC STRUCTURE, MICROFLUIDIC DEVICE HAVING THE SAME AND METHOD OF CONTROLLING THE MICROFLUIDIC DEVICE
20210053054 · 2021-02-25 ·

A microfluidic structure in which a plurality of chambers arranged at different positions are connected in parallel and into which a fixed amount of fluid may be efficiently distributed without using a separate driving source, and a microfluidic device having the same. The microfluidic device includes a platform having a center of rotation and including at least one microfluidic structure. The microfluidic structure includes a sample supply chamber configured to accommodate a sample, a plurality of first chambers arranged in a circumferential direction of the platform at different distances from the center of rotation of the platform, and a plurality of siphon channels, each of the siphon channels being connected to a corresponding one of the first chambers.

Loading vials

In one illustrative embodiment, a cannulated vial is provided, the cannulated vial comprising a vial body having a top surface at one end, a bottom surface at an opposite end, and exterior wall therebetween defining an interior vial volume, the top surface having an opening, a cannula extending from the bottom surface and having a first end, a second end and an outer surface therebetween defining a cannula volume, the first end in fluid communication with the interior vial volume, and a cap having a tongue, the tongue sized to sealably close the opening, the tongue further having a volume greater than or equal to the cannula volume.