The present disclosure provides methods and systems for assaying a sample. A microfluidic device to perform an assay of a sample (e.g., biological sample) is described having a sample application site, a porous component and a flow channel. The porous component provides for uniform dissolution of a reagent and mixing of the sample and reagent without filtering the sample.

An apparatus for generating a powerful oxidative hydrogen peroxide foam and chemically stable application process comprises separate supply lines for respectively conveying liquid hydrogen peroxide and liquid foaming agent from separate storage receptacles, a mixer for mixing the liquid hydrogen peroxide and foaming agent once combined together, an air supply line for aerating the foamable liquid hydrogen peroxide mixture, and a foam generating device for mechanically agitating the aerated foamable liquid hydrogen peroxide mixture to form the hydrogen peroxide foam for subsequent discharge to a substrate. There is also disclosed a related method for generating the hydrogen peroxide foam.

The present invention provides a method of manufacturing an emulsion that is more excellent in monodispersibility by a membrane emulsification method. The manufacturing method for an emulsion of the present invention is a manufacturing method for an emulsion, including circulating a mixed liquid containing a water phase and an oil phase in a circulation circuit including a plurality of tanks, a porous body, a liquid-delivering means, and circulation pipes configured to connect the tanks, the porous body, and the liquid-delivering means so that the mixed liquid passes through the porous body a plurality of times, wherein a tank to supply the mixed liquid to the circulation pipes toward the porous body and a tank to recover the mixed liquid that has passed through the porous body are different tanks.

The present disclosure relates to a transport mechanism apparatus for transporting at least one of a gas or a fluid. The transport mechanism may have an inlet, an outlet and an engineered cellular structure forming a periodic nodal surface, which may include a triply periodic minimal surface (TPMS) structure. The structure is formed in a layer-by-layer three dimensional (3D) printing operation to include cells propagating in three dimensions, where the cells include non-intersecting, continuously curving wall portions having openings, and where the opening in the cells form a plurality of flow paths throughout the transport mechanism from the inlet to the outlet, and where portions of the cells form the inlet and the outlet.

A device or system includes a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough. The mixer is in communication with sources or streams of at least two separate components which, when mixed, form a combined fluid stream. The sources or streams may be, at least initially, on opposite sides of the mixer, or the sources or streams may be on the upstream side of the mixer with an outlet disposed downstream of the mixer. A related method may include providing a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough, and selecting a material for the mixer based on physical characteristics of said material, said characteristics including a selected one or more of mean flow pore size, thickness and porosity volume.

Systems and methods to obtain a desired rheology of drilling mud are described herein. Embodiments generally include a hollow tubular body coupled to, and including, numerous shearing elements configured to facilitate achievement of such desired rheology.

A device or system includes a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough. The mixer is in communication with sources or streams of at least two separate components which, when mixed, form a combined fluid stream. The sources or streams may be, at least initially, on opposite sides of the mixer, or the sources or streams may be on the upstream side of the mixer with an outlet disposed downstream of the mixer. A related method may include providing a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough, and selecting a material for the mixer based on physical characteristics of said material, said characteristics including a selected one or more of mean flow pore size, thickness and porosity volume.

A micro-bubble acquisition apparatus is disclosed including a first body in which a water inlet channel, a water outlet channel, a vortex cavity communicating the water inlet channel with the water outlet channel, and an air inlet channel communicated with the vortex cavity are provided. The vortex cavity has an axis offset from an axis of the water inlet channel, the vortex cavity is provided with a water inlet communicated with the water inlet channel, and the water inlet is arranged at a side of the axis of the water inlet channel away from the axis of the vortex cavity.

A fluid-flow-modification plate comprises a monolithic body, having an inlet-side surface, an outlet-side surface, a first passage, a second passage, a third passage, and a fourth passage. The first passage, second passage, third passage, and fourth passage each extend between the inlet-side surface and the outlet-side surface. The first passage and second passage intersect each other at a first intersection boundary. The third passage and fourth passage intersect each other at a second intersection boundary. The first passage and third passage do not intersect each other. The first passage and fourth passage do not intersect each other. The second passage and third passage do not intersect each other. The second passage and fourth passage do not intersect each other. The first-passage-inlet-opening perimeter boundary has single-point contact with the fourth-passage-inlet-opening perimeter boundary. The second-passage-outlet-opening perimeter boundary has single-point contact with the third-passage-outlet-opening perimeter boundary.

A fluid-flow-modification plate comprises a monolithic body, having an inlet-side surface and an outlet-side surface, a first passage, a second passage, a third passage, and a fourth passage. The first passage, the second passage, the third passage, and the fourth passage each extend between the inlet-side surface and the outlet-side surface. The first passage and the second passage intersect each other at a first intersection boundary. The third passage and the fourth passage intersect each other at a second intersection boundary. The first passage and the third passage do not intersect each other. The second passage and the fourth passage do not intersect each other. The first-passage-inlet-opening perimeter boundary has only two points of intersection with the fourth-passage-inlet-opening perimeter boundary. The second-passage-outlet-opening perimeter boundary has only two points of intersection with the third-passage-outlet-opening perimeter boundary.