A microfluidic device comprises a lower layer that is electrically conductive and transparent with respect to an incident optical beam, an upper layer, comprising first portions that are electrically conductive and second portions that are electrically insulating, adjacent and alternated to the first ones; a compartment seamlessly extending between the lower layer and the upper layer; the compartment contains a filler medium configured to emit an optical emission beam and markers dispersed in the filler medium, which are electrically charged and are adapted to move inside the compartment in all directions according to the intensity of the electrical signal applied to the first portions, the filler medium is configured to interact with the markers to increase or decrease the intensity of the optical emission beam according to the local concentration of the markers.

A particle arrangement transportation device includes: a base material in which is formed a flow channel from an inlet port-side opening through which a solution containing particles to be an object of arrangement and transportation is introduced to an outlet port-side opening; an electrode which is formed along the flow channel on a wall surface of the base material being exposed in the flow channel; electrodes which are formed along the flow channel in the base material on both sides of the flow channel; and a power supply which applies an AC voltage between the electrodes.

A cartridge is for a detection of a sample or a first component, wherein the sample includes the first component and a second component. The cartridge includes a first injection chamber, a second injection chamber, a separation chamber, a collection chamber and a first detection chamber. The first injection chamber and the second injection chamber are adapted for injecting the sample or the first component. The separation chamber is connected to the first injection chamber, and the sample injected from the first injection chamber is adapted to be separated into the first component and the second component in the separation chamber. The collection chamber is connected to the separation chamber and the second injection chamber. The first detection chamber is connected to the collection chamber. A biological detection system is further provided.

A microfluidic system includes a fluidic platform having a surface, a first liquid disposed onto the fluidic platform, and a droplet disposed onto the first liquid. The first liquid has a first temperature. The droplet has a second temperature higher than the first temperature so that the droplet is levitated above the first liquid by a cushion of vapor of the first liquid. In an embodiment, a device is configured to provide a magnetic field that has variable strength across the surface. A location of a magnetic droplet relative to the surface area is affected by the magnetic field. A method includes providing a fluidic platform, providing a magnetic field, introducing a first liquid onto the fluidic platform, introducing a first magnetic droplet onto the first liquid, and locally varying the magnetic field.

A system for detecting analytes in a test sample, and a method for processing the same, is provided. The system includes a cartridge reader unit that has a control unit and a pneumatic system, and a cartridge assembly that prepares the samples with mixing material(s) through communication channels. The assembly has a memory chip with parameters for preparing the sample and at least one sensor (GMR sensor) for detecting analytes in the sample. The assembly is pneumatically and electronically mated with the reader unit via a pneumatic interface and an electronic interface such that the parameters may be implemented via the control unit. The pneumatic system is contained within the unit and has pump(s) and valve(s) for selectively applying fluid pressure to the pneumatic interface of the assembly, and thus through the communication channels, to move the sample and mixing material(s) through and to sensor. The control unit activates the pneumatic system to prepare the sample and provide it to the sensor for detecting analytes, and also processes measurements from the sensor to generate test results.

Acoustofluidic systems including acoustic wave generators for manipulating fluids, droplets, and micro/nano objects within a fluid suspension and related methods are disclosed herein. According to an aspect, an acoustofluidic system includes a substrate including a substrate surface. The system also includes an acoustic wave generator configured to generate acoustic streaming within an acoustic wave region of the substrate surface. Further, the acoustic wave generator is controllable to change the acoustic streaming for movement of a droplet or other micro/nano object on a fluid suspension about the acoustic wave region.

A nozzle plate of a fluid ejection head for a fluid ejection device, a fluid ejection head containing the nozzle plate, and a method for making the fluid ejection head containing the nozzle plate. The nozzle plate contains two or more arrays of nozzle holes therein and a barrier structure disposed on an exposed surface of the nozzle plate between adjacent arrays of nozzle holes, wherein the barrier structure deters cross-contamination of fluids between the adjacent arrays of nozzle holes.

The present invention relates to a contact-less priming system for loading a solution in a microfluidic device comprising: at least one microfluidic device, a pressure chamber configured to enclose said at least one microfluidic device, a pressurization unit fluidly connected to the pressure chamber and at least one closing member. The present invention also relates to a contact-less priming method for loading a solution in a microfluidic device.

The present inventive concept relates to a microfluidic arrangement (1) for capillary driven fluidic connection between capillary flow channels (8, 16). The microfluidic arrangement (1) comprises: a first microfluidic system (4) comprising a first surface (5), and a first capillary flow channel (8), wherein the first capillary flow channel (8) has an elongation in a first plane, and the first surface comprises an outlet opening (9) in a plane different from the first plane, the outlet opening defining an outlet area (35) in the first surface and being adapted to allow fluidic communication with the first capillary flow channel thereby forming a flow outlet (12) of the first capillary flow channel, and a second microfluidic system (6) comprising a second surface (7) and a second capillary flow channel (16), wherein the second capillary flow channel (16) has an elongation in a second plane parallel to the first plane, and a portion of the second surface (7) comprises an inlet opening (13) in a plane different from the second plane, the inlet opening defining an inlet area (33) in the second surface and being adapted to allow fluidic communication with the second capillary flow channel thereby forming a flow inlet (20) of the second capillary flow channel, wherein the first microfluidic system (4) and the second microfluidic system (6) are arranged with the first and the second surfaces in contact such that the flow outlet (12) and the flow inlet (20) are interfaced, thereby allowing capillary driven fluidic connection between the first and the second capillary flow channels (8, 16), wherein the outlet area (35) overlaps at least a portion of the inlet area (33), said at least a portion of the inlet area (33) overlapped by the outlet area (35) being smaller than the outlet area (35).

Devices and methods for controlling collection of liquid sample are described. In an example, a microfluidic device can include an analytical device and an actuator. The actuator can be connected to the analytical device. The actuator can be operable to absorb fluid. The actuator can guide the absorbed fluid to an input layer of the analytical device. The actuator can deform in response to an occurrence of an absorption condition. A degree of deformation of the actuator indicates a volume of fluid collected by the analytical device.