A micronozzle device can include at least one layer having a plurality of nozzle exits for delivering a mixture of a first fluid and a second fluid, at least one first-fluid header layer having a plurality of first microchannels for receiving the first fluid, at least one first-fluid via layer adjacent the at least one first-fluid header layer to receive the first fluid and direct it to respective ones of the plurality of nozzle exits, at least one second-fluid header layer having a plurality of second microchannels for receiving the second fluid, at least one second-fluid via layer adjacent the at least one second-fluid header layer to receive the second fluid and direct it respective ones of the plurality of nozzle exits, and a plurality of first curtain-gas nozzles located at a first side of the micronozzle device and a plurality of second curtain-gas nozzles located at a second side of the micronozzle device.

The present disclosure provides a microchannel device including a base having a defining surface that defines a flow channel and containing silicone, in which the defining surface of the base includes a region in which a surfactant is adsorbed, and a ratio of an amount of secondary ions of the surfactant adsorbed on the defining surface of the base to a total amount of ions detected by time of flight secondary ion mass spectrometry is 0.01 or more, and provides a use application thereof.

A pressure sensor (100) for a measuring system (10) measuring concentrations of gaseous and/or aerosol components of a gas mixture with a reaction carrier (14), with a flow channel (42). The flow channel (42) forms a reaction chamber (46) with a reactant (48), that enters into an optically detectable reaction, and with a measuring device (12) with a gas port unit (5) connecting an inlet channel (16) and an outlet channel (18) to the flow channel (42) and a gas delivery unit (28). The pressure sensor (100) measures a pressure difference of a gas mixture flowing through the gas delivery assembly unit (2) and/or the flow channel (42) of the reaction carrier (14) and has an elastic element (102), which is configured to undergo deformation as a function of the pressure difference. A measuring method, a measuring device and a reaction carrier for such a measuring system are also provided.

Microfluidic devices having superhydrophilic bi-porous interfaces are provided, along with their methods of formation. The device can include a substrate defining a microchannel formed between a pair of side walls and a bottom surface and a plurality of nanowires extending from each of the side walls and the bottom surface. For example, the nanowires can be silicon nanowires (e.g., pure silicon, silicon oxide, silicon carbide, etc., or mixtures thereof).

A reactor containing a heat exchanger is disclosed, which can be operated with co-current or counter-current flow. Also disclosed is a system that includes a reactor having a reformer and a vaporizer, a fuel supply, and a water supply. The reactor includes a source of combustion gas, a reformer operative to receive reformate, and a vaporizer operative to receive water. The reformer and vaporizer each include a stack assembly formed by a combination of separator shims and channel shims. The separator shims and channel shims are stacked in a regular pattern to form two sets of channels within the stack assembly. One set of channels will have vertical passageways at either end and a horizontal flowpath between them, while the other set of channels has only a horizontal flowpath.

The present disclosure provides a microchannel device including a first base having a defining surface that defines a flow channel and containing a polymer that contains a fluorine atom and a second base having a defining surface that defines the flow channel together with the defining surface of the first base, having solvent resistance, and coming into contact with the first base, in which an arithmetic average roughness Ra of a surface of the first base, exposed by peeling the second base from the first base, is 1 μm or more, and provides a use application thereof.

In one aspect the invention relates to reactors and a reactor system that include multiple microstructures each having a first edge and a second edge and an entrance side (18) and including an entrance port (22) and one or more other ports through the entrance side with all of the ports through the entrance side (32a, 32b) arranged in a standard pattern and closer to the first edge than the second edge. Desirably, the entrance port (22) and an exit port (24) are concentric.

In the present invention, a fluid handling device has: a first substrate made of resin whereon a channel is formed in a first surface; a first film made of resin and joined to the first surface of the first substrate; a second film made of resin a first surface of which is joined to a second surface of the first substrate; and a second substrate made of resin and joined to a second surface of the second film. A recessed part overlapping the channel in a plane view is formed on the surface of the second substrate joined to the second film. The glass transition temperature Tg.sub.1s of the first substrate, the glass transition temperature Tg.sub.1f of the first film, the glass transition temperature Tg.sub.2s of the second substrate, and the glass transition temperature Tg.sub.2f of the second film satisfy Tg.sub.1s, Tg.sub.2s>Tg.sub.1f, Tg.sub.2f.

A method for the continuous flow synthesis of (R)-4-halo-3-hydroxy-butyrate using a micro-reaction system. The micro-reaction system includes a micro-mixer, a certain number of micro-reaction units that are successively connected in series, a pH regulating system and a back pressure valve. The micro-reaction unit is composed of a micro-channel reactor and a pH regulator that are sequentially connected with each other. A substrate solution containing halogenated acetoacetate and a biocatalyst solution are simultaneously pumped into the micro-reaction system to enable continuous flow biocatalytic asymmetric reduction reaction of the halogenated acetoacetate to obtain the target product (R)-4-halo-3-hydroxy-butyrate.

A Liquid, comprising an hydrophobic flavonoid derivative electrochemically non-active, that is capable of restoring its electrochemical activity, the concentration of the flavonoid derivative being 10 ppm by weight or less, and an organic substance in an amount of 90% by weight or more.