Methods of transferring material from a first device having an array of microwells to a second device is provided. In some examples, the first device and the second device are moved together toward a stopper plate and impinge on the stopper plate. In other examples, the first device and the second device are kept stationary and an impinging device is impacted on a mounting structure enclosing the first and second devices, causing material transfer from the microwells of the first device to the second device. Apparatus for carrying out the transfer of material is also disclosed.

An example system includes an input channel to flow nucleic segments therethrough, a mixing portion coupled to the input channel, a separation chamber in fluid communication with the second end of the input channel, at least two output channels coupled to the chamber, and an integrated pump to facilitate flow through the separation chamber. The mixing portion is to include at least two different categories of beads having different sizes from each other and having a probe to attach to a corresponding nucleic acid segment. The separation chamber has a passive separation structure including an array of columns spaced apart to facilitate separation of the different categories of beads and attached corresponding nucleic acid segment into at least two flow paths based on a size of the category of the beads. Each output channel is to receive separated categories of beads and attached nucleic acid segments.

Disclosed is a liquid discharging nozzle, including a needle stem having a hollow chamber and an outlet end located at one end of the needle stem, an angle between a normal line of an end surface of the outlet end of the liquid discharging nozzle and an extension direction of the needle stem is equal to or smaller than 90°. Further disclosed are a motion controlling mechanism, a microdroplet generating device and method, a liquid driving mechanism and method, a microdroplet generating method, and a surface processing method of a liquid discharging nozzle.

Devices, systems, and their methods of use, for generating droplets are provided. The devices, systems, and methods may include transporting a first liquid through an outlet of a channel and causing relative motion of the outlet and an interface of a second liquid to produce droplets of the first liquid in the second liquid. The devices, systems, and methods may also include illuminating a portion of the liquid as the liquid exits from an outlet. The invention also provides methods, devices, and systems for changing the size of a droplet and for eliminating a droplet from a plurality of droplets.

A pipette device comprises a pipette channel filled with compressible working gas, a pipette piston movable along the pipette path, a piston drive, which drives the pipette piston, a control device, a data memory connected to the control device for signal transmission, a pressure sensor which detects the pressure of the working gas and which is connected to the control device, a position sensor which detects a position of the pipette piston and which is connected to the control device. The control device is designed to determine a quality of a dispensing sequence on the basis of a target residual quantity value, which represents the target residual quantity of dosing liquid remaining in the pipette channel, of a working gas pressure and of an end position of the pipette piston, in each case after the end of the dispensing sequence, and to output the determined quality.

Methods of transferring material from a first device having an array of microwells to a second device is provided. In some examples, the first device and the second device are moved together toward a stopper plate and impinge on the stopper plate. In other examples, the first device and the second device are kept stationary and an impinging device is impacted on a mounting structure enclosing the first and second devices, causing material transfer from the microwells of the first device to the second device. Apparatus for carrying out the transfer of material is also disclosed.

Methods and systems for thermally controlling a chemical reaction in droplets. In an exemplary method, a first thermal zone and a second thermal zone having different temperatures from one another may be created in a reaction chamber. An emulsion including droplets encapsulated by a carrier fluid may be held in the reaction chamber. The droplets may have a density mismatch with the carrier fluid, and each droplet may include one or more reactants for the chemical reaction. An orientation of the reaction chamber may be changed to move the droplets from the first thermal zone to the second thermal zone, such that a rate of the chemical reaction changes in at least a subset of the droplets.

A cleaning condition of a first nozzle can be set for each reagent combination in a controller of a blood coagulation analysis device, the reagent combination indicating a combination of a reagent previously dispensed by the first nozzle and a reagent currently dispensed by the first nozzle. When the controller of the blood coagulation analysis device obtains the reagent combination and the cleaning condition of the first nozzle is set for the obtained reagent combination, the controller performs control to clean the first nozzle under the set cleaning condition.

An example system includes an input channel to flow nucleic segments therethrough, a mixing portion coupled to the input channel, a separation chamber in fluid communication with the second end of the input channel, at least two output channels coupled to the chamber, and an integrated pump to facilitate flow through the separation chamber. The mixing portion is to include at least two different categories of beads having different sizes from each other and having a probe to attach to a corresponding nucleic acid segment. The separation chamber has a passive separation structure including an array of columns spaced apart to facilitate separation of the different categories of beads and attached corresponding nucleic acid segment into at least two flow paths based on a size of the category of the beads. Each output channel is to receive separated categories of beads and attached nucleic acid segments.

Disclosed is a liquid discharging nozzle, including a needle stem having a hollow chamber and an outlet end located at one end of the needle stem, an angle between a normal line of an end surface of the outlet end of the liquid discharging nozzle and an extension direction of the needle stem is equal to or smaller than 90. Further disclosed are a motion controlling mechanism, a microdroplet generating device and method, a liquid driving mechanism and method, a microdroplet generating method, and a surface processing method of a liquid discharging nozzle.