Disclosed herein is a microfluidic device comprising, at least one sample inlet for receiving biological cells in a biological fluid sample; at least one sheath flow inlet for receiving a sheath fluid; at least one curvilinear channel configured to provide the biological fluid sample substantially in an outer flow and the sheath fluid in substantially an inner separated flow; a plurality of cell traps at the periphery of the curvilinear channel, each trap configured to admit a single cell having a targeted size range from the outer flow.

A method for multiplying DNA includes using a rotation device to rotate a sample carrier about an axis of rotation. The sample carrier has at least one cavity in which a sample liquid containing DNA is received. The cavity is heated to a high temperature value only on a heat input side lying in a rotation plane by using a heating device. As a result of the heating, a convection current is created in the sample liquid in the cavity, the convection current having substantial current components directed perpendicularly to the rotation plane. A circulation time of a liquid particle along a current path of the convection current is predetermined by the speed of the rotation. A rotation device for multiplying DNA and a system for multiplying DNA, are also provided.

A testing module is provided. The testing module includes a carrier, a block member, and a sampling assembly. A flow path connects a storage chamber to a mixing chamber to guide the flow of a fluid. The block member is formed in the flow path to block the fluid from flowing from the storage chamber to the mixing chamber before the connection of the sampling assembly. When the sampling assembly which contains a test sample is connected to the carrier, the fluid mixes with the test sample and flows to the mixing chamber.

A method for operating an analysis device for carrying out an analysis process, more particularly by using a polymerase chain reaction, includes providing a cartridge having a microfluidic channel-and-chamber structure. At least one film bag containing a process liquid is disposed in a stick-pack chamber of the cartridge. In an opening step the stick-pack chamber or stick-pack chambers are heated to a temperature of 80 to 130 degrees Celsius, and in the opening step the cartridge rotates at a rotational speed of 20 to 80 Hz. A cartridge and an analyzer are also provided.

This invention relates generally to the field of analyte assays. In particular, the invention provides a device for analyzing an analyte, which device comprises, inter alia, various means for moving analytes and other items to facilitate binding between analytes and their binding reagents immobilized on a surface and to facilitate clearance of undesirable items away from analyte-binding reagent interaction area to reduce background noise in the assay. Methods for analyzing an analyte using the devices are also disclosed.

The present invention provides methods and devices for simple, low power, automated processing of biological samples through multiple sample preparation and assay steps. The methods and devices described facilitate the point-of-care implementation of complex diagnostic assays in equipment-free, non-laboratory settings.

A liquid handling device having an axis of rotation about which the device can be rotated to drive liquid flow. The device includes a vented upstream chamber having an outlet port and an unvented chamber including an inlet port to receive liquid from the outlet port of the upstream chamber and an outlet port radially outward the inlet port. The device further includes a vented downstream chamber having an inlet port to receive liquid from the outlet port of the unvented chamber. A downstream conduit connects the outlet port of the unvented chamber to the inlet port of the downstream chamber and includes a bend radially inward of the outlet port of the unvented chamber. An upstream conduit connects the outlet port of the upstream chamber to the inlet port of the unvented chamber.

Systems and methods for conducting surface-mediated chemical and/or biochemical reactions within an enclosed chamber are disclosed. Systems and methods of the present disclosure may be used in conducting hybridization reactions of biopolymers. In some examples, an improved method for mixing thin films of solutions in a hybridization chamber includes altering the direction of mixing at least once over the course of a reaction. In some examples, an improved method for mixing thin films of solutions in a hybridization chamber includes altering the speed of mixing at least once over the course of a reaction. In some examples, an improved method for mixing thin films of solutions in a hybridization chamber includes altering the speed of mixing and the direction of mixing at least once over the course of a reaction.

The invention relates to a discoid sample holder (1), on which a device (2) for carrying out at least one processing step is formed. According to the invention, a slot (3), into which a sampling instrument (4) can be introduced, and means (5) for releasing a sample from the sampling instrument (4) arranged in the receptacle (3), are formed in the sample holder.

A substrate for sample analysis including: a substrate including a rotation axis; a first chamber, which includes a first space which retains the liquid; a second chamber, which includes a second space which retains the liquid discharged from the first chamber; and a first flow passage, which includes a path connecting the first chamber and the second chamber in which the first flow passage has a first opening and a second opening, the first opening and the second opening are connected to the first chamber and the second chamber, respectively, and the first opening is positioned on a side closer to the rotation axis than the second opening, in which the first space includes a first region, which includes a portion extending from the first opening and in which the first space of the first chamber has a capacity larger than a capacity of the first flow passage.