摘要:
A fluidic system that includes a reagent manifold comprising a plurality of channels configured for fluid communication between a reagent cartridge and an inlet of a flow cell; a plurality of reagent sippers extending downward from ports in the manifold, each of the reagent sippers configured to be placed into a reagent reservoir in a reagent cartridge so that liquid reagent can be drawn from the reagent reservoir into the sipper; at least one valve configured to mediate fluid communication between the reservoirs and the inlet of the flow cell. The reagent manifold can also include cache reservoirs for reagent re-use.
摘要:
Disclosed embodiments provide improved mechanisms for storing and introducing liquid volumes in a liquid handling device and, in particular, improved mechanisms for rupturing a liquid store to introduce liquid into the device, improvements to the stability of a liquid receiving chamber inside the device and improvements to liquid handling in the receiving chamber.
摘要:
Provided herein are systems, devices, and methods for generating thermal gradients in channels and uses thereof. In particular, provided herein are system, methods, and devices employing first and second thermal layers positioned around a channel in order to create a thermal gradient across a cross-section of the channel having, for example, a nucleic acid denaturation zone, a nucleic acid annealing zone, and a nucleic acid polymerization zone. Such devices find use in, for example, nucleic acid amplification procedures, including digital polymerase chain reaction (dPCR) to temperature cycle droplets for amplification of nucleic acid templates within the droplets.
摘要:
The present technology relates generally to fluidics devices for measuring platelet coagulation and associated systems and methods. In some embodiments, a fluidics device includes an array of microstructures including pairs of generally rigid blocks and generally flexible posts. The fluidics device further includes at least one fluid channel configured to accept the array. The fluidics device can further include a measuring element configured to measure a degree of deflection of one or more of the flexible posts in the array. In some embodiments, the fluidics device comprises a handheld device and usable for point of care testing of platelet forces and coagulation.
摘要:
Devices and methods for dividing droplets are generally described. In some embodiments, an article may comprise a fluidic channel comprising an array of obstructions. In certain embodiments, the arrangement of obstructions in the array may affect the flow path of fluid in the channel. For example, the array of obstructions may be used to convert a polydisperse population of droplets into a relatively monodisperse population of droplets. Passing a polydisperse population of droplets through the array may result in the division of droplets such that the population of droplets exiting the array has a narrower distribution in the characteristic dimensions of the droplets. The arrangement of obstructions in the array may allow for high-throughput production of a substantially monodisperse population of droplets in some cases. In some embodiments, the population of droplets exiting the array may be converted into particles.
摘要:
At least some embodiments of the technology are directed to an automated slide processing apparatus configured to apply at least one reagent to a specimen carried by a microscope slide. The slide processing station can include a support element with a support surface, at least one vacuum port, and a sealing member having a non-round shape. In an uncompressed state, the sealing member can extend upwardly beyond the support surface. In a compressed state, the sealing member can be configured to maintain an airtight seal with a backside of the microscope slide as the microscope slide is pulled against the support surface by a vacuum drawn via the at least one vacuum port.
摘要:
At least some embodiments of the technology are directed to an automated slide processing apparatus configured to apply at least one reagent to a specimen carried by a microscope slide. The slide processing station can include a support element with a support surface, at least one vacuum port, and a sealing member having a non-round shape. In an uncompressed state, the sealing member can extend upwardly beyond the support surface. In a compressed state, the sealing member can be configured to maintain an airtight seal with a backside of the microscope slide as the microscope slide is pulled against the support surface by a vacuum drawn via the at least one vacuum port.
摘要:
The invention relates in particular to a device for determining one or more fluid properties of a fluid. The device preferably comprises a flow distributor comprising a cavity, an inlet to the cavity, one or more outlets from the cavity, and one or more flow deflecting elements present in the cavity and/or one or more flow dividing wall elements of the cavity, wherein the one or more flow deflecting elements and/or the flow dividing wall elements being arranged in such a manner that it provides sub-streams of different strength through the outlet. Furthermore, the device comprises an analyser downstream of the outlet of the flow distributor comprising means adapted to provide a read-out indicative of the strengths of sub-streams.