A method of performing an optical measurement of an analyte in a processed biological sample using a cartridge is provided. The cartridge is operable for being spun around a rotational axis. The method comprises: placing the biological sample into a sample inlet; controlling the rotational rate of the cartridge to process a biological sample into the processed biological sample using a fluidic structure; controlling the rotational rate of the cartridge to allow the processed biological sample to flow from the measurement structure inlet to an absorbent structure via a chromatographic membrane, and performing an optical measurement of a detection zone on the chromatographic membrane with an optical instrument. An inlet air baffle reduces evaporation of the processed biological sample from the chromatographic membrane during rotation of the cartridge.

A sample holder (10) comprises a sample chamber (33), a gas reservoir (32) and an upper layer (20) covering over the sample chamber (33) and gas reservoir (32), wherein a bottom surface of the upper layer (20) comprises a microstructure array (23) which overlies at least a portion of a top periphery of the sample chamber (33), and wherein the microstructure array (23) is in communication with a gas path which extends to the gas reservoir (32), to allow gas exchange between the sample chamber (33) and the gas reservoir (32).

Provided herein are devices that facilitate the magnetic separation of an analyte from a sample, and methods of use thereof. In particular embodiments, devices and methods are provided for the trans-interfacial magnetic separation (TIMS) of analytes from a sample.

Devices and methods for analyzing a sample are disclosed. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample and conducting sample analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device. The reader instrument device receives, operates, and/or actuates the cartridge device to prepare a serial dilution of a sample and conduct sample analysis.

Accordingly, in some embodiments of the disclosure, a multi-chambered assay device is provided, which is configured for arrangement on a disc, as well as configured to process an individual sample. A plurality of such assay devices can be arranged along a periphery of the disc at a distance/radius from the center, such that a plurality of individual samples can be processed, e.g., one per assay device. In addition, in an arrangement that a plurality of assay devices are used, they can be spaced apart such that they balance the disc during rotation (which can be with samples contained in one or more of the assay devices, a plurality, a majority, or all of the assay devices).

Systems and methods for improved flow properties in fluidic and microfluidic systems are disclosed. The system includes a microfluidic device having a first microchannel, a fluid reservoir having a working fluid and a pressurized gas, a pump in communication with the fluid reservoir to maintain a desired pressure of the pressurized gas, and a fluid-resistance element located within a fluid path between the fluid reservoir and the first microchannel. The fluid-resistance element includes a first fluidic resistance that is substantially larger than a second fluidic resistance associated with the first microchannel.

Provided are valveless microfluidic flowchips comprising fluid flow barrier structures or configurations. Further provided are systems and methods having increased fluid transfer control in a valveless microfluidic flowchip. The systems and methods can be used in the present valveless microfluidic flowchips as well as in currently available valveless microfluidic flowchips.

A dispensing system has a sterilizable chamber. At least one robotic arm assembly and a dispensing device are within the sterilizable chamber. The dispensing device comprising a first dispensing element and a second dispensing element. The first dispensing element is connectable to the second dispensing element The at least one robotic assembly is configured to move the dispensing device. An external control device is connected to the at least one robotic arm assembly and is configured to control the at least one robotic arm assembly. The first dispensing element is configured to dispense a structural material and the second dispensing element is configured to dispense a biological material.

A handheld device comprising a housing; a replaceable reagent cartridge including a plurality of liquid cartridges; a collection device, wherein the collection device is used to collect a urine sample from a user; a plurality of electrical components including a LED display, Wi-Fi connectivity, and Bluetooth; and a microfluidics platform allowing reagents from the plurality of liquid cartridges to be combined with the urine sample to create a reaction, wherein the reaction is measured with a plurality of sensors and analyzed.

The invention relates in a first aspect to an improved fluidic device for determining a property of a microbe. The device comprising a bottom layer comprising a plurality of light-transmissive wells; and a top layer comprising an injection opening and a fluid distribution system. Each of said plurality of distribution channels has: essentially the same channel length between the inlet end and the outlet end; and essentially the same channel volume. The invention relates in a second aspect to a use of the device for determining a susceptibility of a microbe, preferably a bacterium, to an antimicrobial drug.