The invention concerns a circuit comprising a bag (11) comprising two flexible films (45, 46) and a press (10) comprising a first (14) and a second (13) shell clamping the bag to form pipes having a passage and edges (41); the first shell comprising a valve (20) which comprises a movable member (24) and a pad (31), which pad has a resting configuration in which a second face (33) of the pad is concave and locally delimits a channel (18) and a pinching configuration in which the second face (33) is convex; said movable member and said pad being configured so that, when said valve is in closed position and said pad in pinching configuration, said passage is pinched by said movable member against said second shell channel and said edges (41) are pinched flat by said movable member against said second shell (13).

Methods and apparatus for detecting, quantifying, enriching, and/or separating bacterial species in fluid sample are provided. The fluid sample is provided as input to a microfluidic passage of a microfluidic device, wherein the microfluidic device comprises at least one electrode disposed adjacent to the microfluidic passage. The at least one electrode is activated to capture bacteria in the sample using dielectrophoresis, wherein the capture efficiency of bacteria is at least 99%.

This disclosure provides an apparatus and a method for quickly, efficiently and continuously fractionating biomolecules, such as DNAs and proteins based on size and other factors, while allowing imaging of the separated biomolecules as they are processed within the apparatus. The apparatus employs angled nanochannels to first preconcentrate and then separate like molecules. Its embodiments offer improved detection sensitivity and separation resolution over existing technologies and multiplexing capabilities.

A microfluidic device and method is provided for concentrating particles in a fluid sample. The microfluidic device has a chamber, wherein the chamber has a filtering unit defining a first compartment and a second compartment, the first compartment being in fluid communication with the second compartment and being for receiving a fluid sample containing particles, the filtering unit being configured to selectively retain particles of the fluid sample based on a size of the particles, at a sub-region of the first compartment as the fluid sample flows from the first compartment to the second compartment; and an acoustic transducer configured to generate acoustic waves in the sub-region to disperse the particles.

Described herein are microfluidic devices and methods that can separate and concentrate particles in a sample.

Microfluidic devices and methods for using the same are provided. Aspects of the invention include microfluidic devices that include a separation medium and a pan-capture binding medium. The microfluidic devices are configured to subject a sample to two or more directionally distinct electric fields. Also provided are methods of using the devices as well as systems and kits that include the devices. The devices, systems and methods find use in a variety of different applications, including diagnostic and validation assays.

This invention relates to a system and methods including their manufacturing technologies for enhanced sensing capability of one or more bioagents covering from HIV, Pathogens, virus, to cells detection. More particularly, this invention is related to HIV and pathogen diagnosis system and methods which may increase its sensitivity and may reduce the diagnosis time. Furthermore, the diagnosis system and method may be applicable to all early stage patients with various age groups, where early and accuracy in diagnosis, are required.

A method of treating a biological sample, preferably a sample of blood or bodily fluids likely to contain one or more species of interest, and including a step of decomplexification by acoustophoresis (as well as associated systems, devices, substrates and connection devices).

The present invention provides integrated sample preparation systems and stabilized enzyme mixtures. In particular, the present invention provides microfluidic cards configured for processing a sample and generating DNA libraries that are suitable for use in sequencing methods (e.g., next generation sequencing methods) or other suitable nucleic acid analysis methods. The present invention also provides stabilized enzyme mixtures containing an enzyme (e.g., an enzyme used in whole genome amplification), BSA, and a sugar. Such enzyme mixtures may be lyophilized and stored at room temperature without significant loss of enzyme activity for months.

A tissue dissociation device includes an inlet coupled to a first stage having a single channel having an upstream end and a downstream end; a plurality of serially arranged intermediate stages, wherein a first intermediate stage of the plurality is fluidically coupled to the downstream end of the first stage, and wherein each subsequent intermediate stage of the plurality has an increasing number of channels (with channels of smaller dimensions); and an outlet coupled to a last stage of the intermediate stages.