A method for preparing stable liquid emulsion forms of plant extract is provided. A plant extract having a bitter flavor is mixed with diluent oil as an oil mixture and heat is applied to the oil mixture. An emulsifying agent is dispersed in water as an emulsifying solution. The oil mixture is mixed with the emulsifying solution. The mixed oil mixture and emulsifying solution is homogenized as a liquid form of the plant extract. Gluconic acid is added to the liquid form of the plant extract. The bitter flavor of the plant extract is disguised by adding a bitter blocker to the liquid form of the plant extract.

A method of forming a liquid-liquid mixing phase channel group, which has the steps of: ejecting the first liquid as droplets into the phase of the second liquid in a two-liquid phase system in which two immiscible liquids oppose each other at an interface; incorporating the droplets of the first liquid into the phase of the first liquid, accompanied by the second liquid around the first liquid by allowing to collide the jet of the droplets with the interface; and forming a continuously connected microfluidic channel group in which the space between the layered droplets of the first liquid are filled with the second liquid in the liquid-liquid mixing phase that grows from the interface as a starting point.

Method of analysis. In the method, a microfluidic device defining a flow path extending from an inlet to an outlet may be selected. A sample-containing fluid may be introduced into the flow path via the inlet. Volumes of the sample-containing fluid may be isolated from one another on the flow path. A two-dimensional monolayer of the volumes may be imaged. The two-dimensional monolayer may be formed along the flow path between the inlet and the outlet.

The present invention relates to a surfactant-stabilized fluid interface, comprising a layer of surfactant and a first compound containing a hydrophobic part covalently linked to a molecular recognition site, wherein the surfactant-stabilized fluid interface has a first fluid on one side and a second fluid on the other side, wherein the surfactant stabilizes the fluid interface, wherein the hydrophobic part of the first compound is interacting with the layer of surfactant by secondary non-covalent interactions and the molecular recognition site of the first compound extends from the layer of surfactant, and wherein the surfactant is a block-copolymer having at least one hydrophilic block and at least one hydrophobic block. The present invention further relates to a dispersion comprising one or more droplets having a surfactant stabilized fluid interface.

Embodiments of the present invention provide systems and methods of producing stable homogeneous dispersions of non-polar fluid(s) in a continuous phase of polar fluid(s) or of polar a continuous phase of non-polar fluid(s) without using synthetic emulsifiers and/or other chemical surfactants.

Various examples of systems and methods for making microspheres, microparticles, and emulsions are provided. In one example, a system and method for forming microspheres comprises: pumping a dispersed phase liquid and a continuous phase liquid into a levitating magnetic impeller pump to subject the dispersed phase liquid and continuous phase liquid to a high shear environment within the impeller pump's pump chamber. In another example, a system and method for forming an emulsion comprises: pumping a dispersed phase liquid and an inner aqueous phase liquid into a levitating magnetic impeller pump to subject the dispersed phase and the inner aqueous phase to a high shear environment within the impeller pump's pump chamber.

The present invention relates to a microfluidic device, a method for manufacturing a microfluidic device, and a method for provision of double emulsion droplets using a microfluidic device. Furthermore, the present invention relates to an assembly configured to supply pressure to the microfluidic device for provision of double emulsion droplets. Furthermore, the present invention relates to a kit comprising a plurality of microfluidic devices and a plurality of fluids configured for use with the microfluidic device for provision of double emulsion droplets. The microfluidic device comprises a transfer conduit comprising a first transfer conduit part having a first affinity for water; and a collection conduit comprising a first collection conduit part having a second affinity for water being different from the first affinity for water. A well section and a microfluidic section of the microfluidic device are fixedly connected to each other.

Certain embodiments are directed to finite step emulsification device and/or methods that combine finite step emulsification with gradients of confinement for the formation of a 2D monolayer array of droplets with low size dispersion.

A flow focusing type one-step double emulsion droplet parallel generation device and method. The device comprises a fluid injection module, a liquid droplet generation module, a liquid droplet surface solidification module and a liquid droplet collection module, wherein the fluid injection module is used for conveying fluid of each phase to the liquid droplet generation module; and the liquid droplet generation module comprises a fluid distribution functional area, a liquid droplet preparation functional area and an auxiliary functional arca, wherein the liquid droplet distribution functional area is used for conveying the fluid of each phase into a channel of the fluid of each phase corresponding to the liquid droplet preparation functional area, and the fluid of each phase is gathered at the same point in a flow focusing structure and then is broken, and a fluid of an outer phase covers the fluid of the middle phase.

A lipid nanoparticles manufacturing chip includes a mixer unit for forming a mixed solution by mixing a first raw material containing an active ingredient and a second raw material containing a lipid, a dilution unit that is connected to the mixer unit and dilutes the mixed solution using a diluent solution to make a diluted mixed solution, and a concentration unit connected to the dilution unit and for obtaining a concentrated solution by concentrating lipid nanoparticles (LNP) from the diluted mixed solution.