B01L2200/12

FLOW CELLS AND METHODS FOR THEIR MANUFACTURE AND USE

A flow cell that includes (a) a gasket interposed between a first substrate and a second substrate, wherein the gasket, the first substrate and the second substrate are impermeable to aqueous liquid and liquid adhesive, wherein the gasket has a footprint on the first substrate that delineates a channel for containing the aqueous liquid; (b) a via in the gasket, the via containing a solidified liquid adhesive that bonds the first substrate to the second substrate, wherein the solidified liquid adhesive in the via is separated from the channel by the gasket; and (c) a channel port connecting the channel to the exterior of the flow cell, wherein the channel port is permeable to the aqueous liquid.

Microfluidic Devices and Methods for Use Thereof in Multicellular Assays of Secretion

Methods and devices are provided herein for identifying a cell population comprising an effector cell that exerts an extracellular effect. In one embodiment the method comprises retaining in a microreactor a cell population comprising one or more effector cells, wherein the contents of the microreactor further comprise a readout particle population comprising one or more readout particles, incubating the cell population and the readout particle population within the microreactor, assaying the cell population for the presence of the extracellular effect, wherein the readout particle population or subpopulation thereof provides a direct or indirect readout of the extracellular effect, and determining, based on the results of the assaying step, whether one or more effector cells within the cell population exerts the extracellular effect on the readout particle. If an extracellular effect is measured, the cell population is recovered for further analysis to determine the cell or cells responsible for the effect.

MESH FILTER AND FLUID HANDLING DEVICE
20230056206 · 2023-02-23 · ·

The present invention provides a mesh filter having superior handling performance for liquid-solution lyophilizates. This mesh filter 130 has a mesh 131, and liquid-solution lyophilizates 132 affixed to the mesh.

SAMPLE HOLDERS, PCR STATION ASSEMBLIES, AND METHODS OF OPERATING PCR TESTING SYSTEM

A sample holder for PCR processing. The sample holder includes a body with an inlet and outlet grooves formed alongside each other, a detection recess that is connected to the inlet and outlet grooves, and a fill port interconnected to both the inlet and outlet grooves, and a cover interfacing with the body to form an inlet channel interconnected to the fill port, a detection region interconnected to the inlet channel, and an outlet channel interconnected to the detection region and the fill port. The detection region is configured to receive a PCR solution from the fill port and replication occurs within the detection region via heating and cooling cycles. Thereafter, fluorescent emissions from tagged replicated DNA/RNA in the detection region are detected and measured. PCR stations, PCR station assemblies, PCR testing systems, and methods of operating a PCR testing systems are provided, as are other aspects.

CHANNEL DEVICE

In a channel structure of a channel device, first confluence channels of a plurality of first channels include a plurality of first confluence channels arranged along a second board front surface, first confluence portions of the first channels in each of first boards are configured of a plurality of first confluence portion through-holes that penetrate the first board, and second first-liquid introduction channel and second second-liquid introduction channels of a plurality of second channels are arranged along the second board front surface and are located in an area that is deviated from the first confluence channels in a view in a direction along a stacking direction of the first board and the second board.

METHOD OF PRODUCING REACTION UNIT, KIT FOR PRODUCING REACTION UNIT, AND METHOD OF MEASURING DETECTION TARGET SUBSTANCE
20220364974 · 2022-11-17 ·

A method of producing a reaction unit includes (a1) preparing a first substrate which is a substrate having a first surface and a second surface and of which at least the first surface is composed of polypropylene, and which has one or more through-holes that penetrate from the first surface to the second surface, and a second substrate which is a substrate having a first surface and a second surface and of which at least the first surface is composed of at least one selected from the group consisting of cycloolefin polymers and cycloolefin copolymers, and which has a track region in which concave parts and convex parts are alternately formed on the first surface; (b1) applying a photocurable composition around an opening of the through-hole on the first surface of the first substrate; (c1) emitting light to the photocurable composition applied around the opening of the through-hole to form a cured resin layer in which the photocurable composition is cured; and (d1) forming a well having the track region as a bottom surface and the through-hole as a side surface, which is a well formed by bringing the cured resin layer formed on the first surface of the first substrate into close contact with the first surface of the second substrate after the process (c1).

Superparamagnetic particle imaging and its applications in quantitative multiplex stationary phase diagnostic assays

Superparamagnetic nanoparticle-based analytical method comprising providing a sample having analytes in a sample matrix, providing a point of care chip having analytical regions, each of which is a stationary phase having at least one or more sections, labeling each of the analytes with a superparamagnetic nanoparticle and immobilizing the labeled analytes in the stationary phase, providing an analytical device having a means for exciting the superparamagnetic nanoparticles in vitro and a means for sensing, receiving, and transmitting response of the excited superparamagnetic nanoparticles, placing the chip in the analytical device and exciting the superparamagnetic nanoparticles in vitro, sensing, receiving, and transmitting the response of the superparamagnetic nanoparticles, and analyzing the response and determining characteristic of the analytes, wherein the response of the superparamagnetic nanoparticles comprises harmonics. The present invention also provides the hybrid point of care chip and analyzer to be used in the analytical method.

Test strip and method for manufacturating test strips
11583850 · 2023-02-21 · ·

The application discloses a test strip and a method for manufacturing the test strip. The test strip comprises a base layer; an intermediate layer overlaid on the base layer; a blood retaining layer comprising a slit and a blood retaining region fluidly commuted with the slit and overlaid on the intermediate layer; an upper layer overlaid on the blood retaining layer; a reagent disposed on a surface of the intermediate layer and exposed to the slit, wherein there are an expectedly predetermined depth and a measured depth from an interface between the slit and the upper layer to an upper surface of the intermediate layer; and a classification mark representing a compensation factor and disposed on an upper surface of the upper layer or a lower surface of the base layer; wherein the compensation factor is the product of a difference between the predetermined depth and the measured depth and a reciprocal of the predetermined depth.

Multi-layered band and a method for manufacturing a multi-layered band

A multi-layered band and a method for manufacturing a multi-layered band are disclosed. The multi-layered band comprises a support (1) to hold at least one battery structure (10) formed by overlapped layers including a porous material (11) and two electroactive electrodes (12, 13), one oxidizing (12) and one reducing (13), separated at a certain distance between them and in touch with said porous material (11). The battery structure (10) is configured to be activated upon the addition of a fluid into a given region of the porous material (11) and to provide electrical energy while said fluid impregnates by capillarity the porous material (11). The overlapped layers are constituted by parallel strips extending longitudinally along the length of the support (1), such that said multi-layered band can be cut transversally providing individual batteries of a same or different width each including the porous material (11) and the electroactive electrodes (12, 13).

Well or well strip and method for producing same

A method for producing a well or a well strip made of plastic, as used in the pharmaceutical industry in microtiter systems is presented. The wells typically have undercuts and the well strips are connected to each other by connecting ribs. In order to produce a well with a larger undercut height or a well strip with higher connecting ribs, as the case may be, the method provides that the plastic, which is initially still liquid, is pressed through a portion of a runner which is arranged in a slider and out of the slider into a cavity of an injection mold.