Abstract: An automated assay system includes a platform and a rotatable coupon removably positioned within or on the platform. The rotatable coupon includes a plurality of discrete tracks, each of the plurality of discrete tracks configured to contain microfluidic volumes. At least one magnet is operatively disposed on the platform, the rotatable coupon, or combinations thereof, and the at least one magnet is configured to generate a magnetic field at a predetermined area of the rotatable coupon. A motor is operatively connected to the rotatable coupon.

Abstract: A microfluidic device comprises a microfluidic coupon and a fluid reservoir associated with the microfluidic coupon. The fluid reservoir has a vented configuration and a non-vented configuration, and is configured to contain a liquid to be centrifugated. An opening is formed in the fluid reservoir. When the microfluidic coupon is rotated at a target rotational velocity: the opening is open to flow of the liquid when the fluid reservoir is in the vented configuration; and the opening is closed to flow of the liquid when the fluid reservoir is in the non-vented configuration.

Abstract: One exemplary fluid ejection device includes a substrate having one or more layers positioned thereon. The fluid ejection device also includes a fluid-feed path extending through a space which is defined, at least in part, by the one or more layers. The fluid ejection device including methods and structures for managing air and amongst other things gas bubble formation.

Abstract: A print head laminate includes a flexible glass layer between an adhesive layer and an electrical conductor.

Abstract: An automated assay system includes a platform and a rotatable coupon removably positioned within or on the platform. The rotatable coupon includes a plurality of discrete tracks, each of the plurality of discrete tracks configured to contain microfluidic volumes. At least one magnet is operatively disposed on the platform, the rotatable coupon, or combinations thereof, and the at least one magnet is configured to generate a magnetic field at a predetermined area of the rotatable coupon. A motor is operatively connected to the rotatable coupon.

Abstract: A fuel supply for a fuel cell including a fuel container and an impurity removal cartridge connected to the fuel container, where both the fuel container and the impurity removal cartridge are integrated into a single unit.

Abstract: A method of detecting analytes in a microfluidic sample includes introducing at least one type of analyte, at least one type of carrier particle, and a fluid into a mixing chamber of a system. The at least one type of analyte binds to a site on the at least one type of carrier particle to form a microfluidic suspension including at least one analyte-bound particle suspended in the fluid. The at least one analyte-bound particle is separated from the fluid by exposing the suspension to physical forces, magnetic forces, or combinations thereof. A spectrophotometric property of a solution is altered using the at least one analyte-bound particle. The altered spectrophotometric property is measured with an optical detection system.

Abstract: A method of detecting analytes in a microfluidic sample includes introducing at least one type of analyte, at least one type of carrier particle, and a fluid into a mixing chamber of a system. The at least one type of analyte binds to a site on the at least one type of carrier particle to form a microfluidic suspension including at least one analyte-bound particle suspended in the fluid. The at least one analyte-bound particle is separated from the fluid by exposing the suspension to physical forces, magnetic forces, or combinations thereof. A spectrophotometric property of a solution is altered using the at least one analyte-bound particle. The altered spectrophotometric property is measured with an optical detection system.

Abstract: Representative embodiments provide for a fuel activation device including a fuel storage chamber configured to store a plurality of fuel pellets arranged as a stack. A fuel dispensing device is configured to transport a fuel pellet to a fuel activation chamber. A spring is configured to advance the fuel pellets toward the fuel dispensing device as one or more fuel pellets are removed from the stack. A fuel initiator is configured to activate a release of hydrogen gas from the transported fuel pellet. The fuel activation device is configured to provide the hydrogen gas to a fuel cell through a gas vent. A method is provided including providing a plurality of fuel pellets arranged as a spring-loaded stack, transporting a fuel pellet from the stack, activating a release of hydrogen gas from the transported fuel pellet, and providing the hydrogen gas to a fuel cell.

Abstract: A fuel cell system in accordance with a present invention includes a fuel supply apparatus that supplies at least one reactant in a pulse.

Abstract: In one embodiment, a fluid ejection device comprises a substrate having a first surface, and a fluid slot in the first surface. The device further comprises a fluid ejector formed over the first surface of the substrate, and a chamber layer formed over the first surface of the substrate. The chamber layer defines a chamber about the fluid ejector, wherein fluid flows from the fluid slot towards the to be ejected therefrom. The chamber layer has a discontinuity, wherein the discontinuity is positioned over the fluid slot.

Abstract: A fuel supply for a fuel supply for a fuel cell including a fuel container and an impurity removal cartridge connected to the fuel container, where both the fuel container and the impurity removal cartridge are integrated into a single unit.

Abstract: In one embodiment, a fluid ejection device comprises a substrate having a first surface, and a fluid slot in the first surface. The device further comprises a fluid ejector formed over the first surface of the substrate, and a chamber layer formed over the first surface of the substrate. The chamber layer defines a chamber about the fluid ejector, wherein fluid flows from the fluid slot towards the to be ejected therefrom. The chamber layer has a discontinuity, wherein the discontinuity is positioned over the fluid slot.

Abstract: In one embodiment, a fluid ejection device comprises a substrate having a first surface, and a fluid slot in the first surface. The device further comprises a fluid ejector formed over the first surface of the substrate, and a chamber layer formed over the first surface of the substrate. The chamber layer defines a chamber about the fluid ejector, wherein fluid flows from the fluid slot towards the to be ejected therefrom. The chamber layer has a discontinuity, wherein the discontinuity is positioned over the fluid slot.