Abstract:
A flowcell device for a sequencing by synthesis instrument. The flowcell device has a fluid inlet configured to receive one or more liquid reagents, a fluid outlet configured to pass the one or more liquid reagents, and a channel extending between and fluidly connecting the fluid inlet and the fluid outlet. At least a portion of the channel comprises a reflective structure configured to retain a plurality of sequencing targets thereon. The reflective structure includes at Ieast a metal oxide layer and a film having a first surface and a second surface opposed the first surface. The first surface of the film is disposed on the metal oxide layer and the second surface of the film is configured to receive a plurality of sequencing targets immobilized thereon.
Abstract:
The invention relates to a method of performing an acoustophoretic operation, comprising the steps of: a. providing an acoustophoretic chip comprising a polymer substrate in which a microfluidic flow channel is positioned, b. providing at least one ultrasound transducer in acoustic contact with one surface of the substrate, c. actuating the at least one ultrasound transducer at a frequency f that corresponds to an acoustic resonance peak of the substrate including the microfluidic flow channel filled with a liquid suspension,and d. providing the liquid suspension in the flow channel to perform the acoustophoretic operation on the liquid suspension.The invention further relates to an acoustophoretic device, a method of producing an acoustophoretic device, and a microfluidic system comprising the acoustophoretic device.
Abstract:
The disclosed technology includes devices and methods for detecting rare cells in whole blood samples using a microfluidic device. Such devices include a housing with a microfluidic chamber having first and second microfluidic layers, each microfluidic layer having an array of microscale structure. Other disclosed devices also include a housing including a chemically functionalized hydrogel matrix and a pump connected to the housing. Disclosed methods include constructing, with an additive manufacturing device, a microfluidic device having a microfluidic chamber, removing, by a thermal release process, at least some of the sacrificial support material deposited by the additive manufacturing device, and chemically functionalizing at least a portion of the microfluidic chamber. Other disclosed methods include chemically functionalizing a hydrogel matrix and connecting the chemically functionalized hydrogel matrix to a pump.
Abstract:
Disclosed herein are embodiments of fluidic devices that can be used to detect the presence (or absence) of analytes in samples by providing separate and distinct chromatographic signals for particular analytes. The fluidic devices described herein are highly sensitive and user-friendly. Methods of making and using the disclosed fluidic devices also are disclosed herein.
Abstract:
A device for optically exciting fluorescence is disclosed. The device comprises transparent substrate having first and second opposite faces and a multilayer stack disposed on the second face of the substrate. The multilayer stack comprises a first layer having first and second opposite faces and a first refractive index and a second layer having first and second opposite faces and a second refractive index. The first face of the first layer is disposed on the second face of the substrate. The first face of the second layer is disposed on the second face of the first layer such that the first layer is interposed between the second layer and the substrate. The substrate has a third refractive index. The first refractive index is less than the second refractive index and the third refractive index. The device comprises a light source carried by the first face of the substrate and arranged to emit light towards the first face of the first layer.
Abstract:
La présente invention concerne une puce microfluidique de culture cellulaire qui contient un module central (104) comprenant: - une unité centrale (105), laquelle contient - un support constitué d'une membrane non résorbable (1), - une membrane poreuse nanostructurée en 3D (5), comportant au moins une protubérance (8), et ladite membrane poreuse nanostructurée en 3D (5) et la au moins une protubérance (8) étant composées de matériaux appropriés pour la culture de deux types de cellules distincts; - un socle (106), ladite unité centrale (105) étant intégrée dans ledit socle (106), et formant un tout avec ledit socle (106).
Abstract:
The present invention relates to a microfluidic system including a temperature controller and a thermoplastic microfluidic chip that enables rapid PCR in a PCR chamber of the microfluidic chip. Thermal control of the PCR chamber is achieved by applying voltage to heater electrodes patterned directly onto one layer of the microfluidic chip. The temperature controller adjusts the voltage applied to the heater electrodes by changing temperature controller parameters selected to minimize duration of each PCR cycle. Furthermore, simple operation of the microfluidic chip is provided through using an integrated passive capillary valve, requiring minimum operator intervention and eliminating the need for fluidic interfacing, pumping, or metering during chip loading.
Abstract:
L'invention concerne une membrane d'analyse de/pour dispositif microfluidique, façonnée d'un seul tenant à partir d'un matériau, absorbant diffuseur de liquide, de composition à base de fibre de verre, au travers de laquelle un échantillon biologique une fois déposé sur ladite membrane d'analyse, progresse par capillarité et est soumis à au moins une analyse qualitative et/ou quantitative, ladite membrane d'analyse comprend : - au moins une zone dite zone de dépôt, - au moins une zone dite zone de réaction, dans laquelle au moins un réactif se trouve adsorbé directement audit matériau diffuseur de liquide en fibre de verre, ou indirectement grâce à un agent de couplage, - des canaux assurant une communication fluidique entre ces zone(s) de dépôt et zone(s) de réaction, et est caractérisé en ce qu'au moins une zone de réaction est circonscrite dans un espace de la membrane d'analyse, dit espace à diffusion ralentie, à l'intérieur duquel, les canaux qui arrivent en amont et/ou les canaux qui repartent en aval : - se prolongent en un ou en plusieurs canaux de moindre largeur, et/ou - se prolongent en un ou en plusieurs canaux de moindre épaisseur, et/ou - se prolongent en un ou en plusieurs canaux comprenant au moins une portion ayant un tracé tortueux.
Abstract:
Integrated dielectric elastomeric actuators are provided that can be incorporated within a microfluidic device. The individual actuators function as valves that are operable to collapse a fluidic channel formed in a compliant material. A plurality of actuators can be arranged in series and selectively actuated to form a peristaltic pump that is capable of providing a motive force for a fluid flowing within the fluidic channel. The actuators, which operate as valves, and pumps can be used within a point-of-care device for the detection of an analyte within a fluid sample.
Abstract:
Disclosed is a microfluidic device for detecting the presence and/or amount of analytes in a fluid comprising a first and a second element both comprising a hydrophobic surface. Both hydrophobic surfaces comprise a hydrophilic pathway, wherein the hydrophilic pathways are configured in a mirror image of each other in such a way that when the first and second elements are placed upon each other with the hydrophilic pathways facing each other a capillary fluid channel on the hydrophobic surfaces of the elements is formed, and wherein at least one of the hydrophilic pathways comprises a sensing region comprising capture means.