Abstract:
Microscale fluidic devices and components thereof having a fluid retention groove, as well as systems and methods related thereto. The fluid retention groove facilitates uniform bonding of microfluidic device components.
Abstract:
Microfluidic devices and methods for investigating crystallization and/or for controlling a reaction or a phase transition are disclosed. In one embodiment, the microfluidic device includes a reservoir layer; a membrane disposed on the reservoir layer; a wetting control layer disposed on the membrane; and a storage layer disposed on the wetting control layer, wherein the wetting control layer and the storage layer define a microfluidic channel comprising an upstream portion, a downstream portion, a first fluid path in communication with the upstream and the downstream portions, and a storage well positioned within the first fluid path, wherein the wetting control layer includes a fluid passageway in communication with the storage well and the membrane, and wherein the wetting control layer wets a first fluid introduced into the microfluidic channel, the first fluid comprising a hydrophilic, lipophilic, fluorophilic or gas phase as the continuous phase in the microfluidic channel.
Abstract:
A device for analyzing a liquid sample. The device includes an inlet for receiving the sample, a reaction chamber, an analysis module, and at least one pump for moving fluid within the one or more flow paths. The device includes one or more flow paths arranged so as to provide a fluid flow path between the inlet and the reaction chamber, and a fluid flow path between the reaction chamber and the analysis module. The device may be used for analysing a liquid sample, such as, but not limited to nipple aspirate fluid (NAF).
Abstract:
The present invention provides assay devices having a unitary body with an exterior surface, the unitary body being substantially transparent to visible light and formed from a material having a refractive index in the range 1.26 to 1.40, the refractive index being measured at 20 °C with light of wavelength 589 nm, and wherein the unitary body is formed from a hydrophobic material, and at least two capillary bores extending internally along the unitary body, wherein at least a portion of the surface of each capillary bore includes a hydrophilic layer for retaining an assay reagent, and wherein the hydrophilic layer is also substantially transparent to visible light to allow optical interrogation of the capillary bores through the capillary wall. The present invention also provides assay systems including such assay devices, methods of performing an assay using such assay devices and method of method for manufacturing such assay devices.
Abstract:
The present invention relates to a multiparameter lateral flow strip (1), comprising a microporous membrane layer (2) supported on a liquid-impermeable support layer (3), for lateral flow of a liquid through the microporous membrane layer (2), wherein the microporous membrane layer (2) has two or more flow lanes (4) in the direction of lateral flow, wherein said two or more flow lanes (4) are separated by hydrophobic separation channels (5), and wherein each of said two or more flow lanes (4) comprises a detection spot (6) including a binding agent, wherein said two or more flow lanes (4) are isomorphic lanes. Furthermore, the present invention relates to a multiparameter lateral flow immunoassay device comprising said multiparameter lateral flow membrane (1), the use of said multiparameter configured lateral flow membrane (1) in an immunological test, as well as to a method for the manufacture of said multiparameter configured lateral flow membrane (1).
Abstract:
Disclosed is a system for a biomimetic heart device simulating arterial flow and pulse properties thus allowing for a biomimetic microscale cardiac valve environment. The system's signaling and regulatory mechanisms linking mechano-sensing and cellular degenerative transformation provides details of force components and/or magnitudes leading heart valves to accelerated failure. The disclosed system supports a wide variety of scenarios for testing, diagnostics and drug delivery, and related products and services.
Abstract:
A microfluidic chip having integrated heaters and a method for manufacturing the microfluidic chip is provided. Specifically, the microfluidic chip comprises a first substrate having a microchannel formed therein. The second substrate is bonded to the first substrate to encapsulate the microchannel. An integrated heating element, that is hermetically sealed and electrically isolated from the microchannel, is formed on the top surface the second substrate after the first and second substrates are bonded together. A biological reaction can be performed in the microchannel of the microfluidic chip while the fluid in the microchannel is heated by electrical current passing through the integrated heating element.
Abstract:
Die Erfindung betrifft eine Flusszelle, insbesondere zur Analyse oder/und Synthese von Substanzen mit wenigstens einem Speicherbereich (10;19;33), der mit einem Kanal (7-9;20) zum Transport von Fluid aus dem, in den oder/und durch den Speicherbereich verbunden ist, wobei der Kanal einen durch ein Substrat (1) und eine mit dem Substrat verbundene Folie (3) begrenzten Kanalbereich (14) aufweist, in welchem der Kanal verschlossen und an einer Sollbruchstelle unter Auslenkung der Folie aufschließbar ist. Die erfindungsgemäße Flusszelle ist dadurch gekennzeichnet, dass die Folie eine den Kanalbereich bildende Ausnehmung (15) in dem Substrat abdeckt und in der Ausnehmung eine den Kanal verschließende, einstückig mit dem Substrat verbundene Sperrwand (16) angeordnet ist, dass die Sollbruchstelle durch einen aufbrechbaren Verbindungsbereich zwischen der Folie und einem der Folie zugewandten Randabschnitt (17) der Sperrwand gebildet ist und dass für die Flächenausdehnung des Verbindungsbereichs die Abmessungen einer in dem Randabschnitt gebildeten, zu der Folie parallelen Randfläche der Sperrwand maßgebend sind.
Abstract:
The present invention relates to a method of manufacturing a surface-modified material, wherein a substrate, which comprises on at least one side a coating layer comprising a salifiable alkaline or alkaline earth compound, is treated with a liquid composition comprising an acid to form at least one surface-modified region on the coating layer.
Abstract:
A sensor, system, and method of making a sensor are disclosed. The sensor includes a solid polymer material (710, 760), and a dopant-containing region (750) of discrete thickness at a surface (720) of the solid polymer (710, 760). The method of creating the sensor includes impregnating the polymer material (710, 760) with the dopant by contact with a solvent solution (730) containing the dopants. A polymer/solvent gel-layer (750), whose depth increases with impregnation time, forms after contact of the polymer material (710, 760) in the solvent solution (730). The dopants are diffused into the polymer material (710, 760), forming a dopant-containing region (750) of discrete thickness at a surface (720) of the solid polymer (710, 760). A microfluid structure with microchannels is formed by imprinting grooves or channels in the polymer/solvent gel-layer or dopant-containing region (750), for example by using a stamp (740), and bonding the imprinted layer to a top plate (780).