B01F23/4143

CAPILLARY TUBE DROPLET GENERATION SYSTEMS AND METHODS
20210291129 · 2021-09-23 ·

A droplet generating system includes a reservoir configured to receive an organic fluid and an aqueous fluid, a barrier separating the reservoir into a first reservoir portion and a second reservoir portion, a tube, and an indexer. The barrier is capable of preventing the aqueous fluid from entering the second reservoir portion from the first reservoir portion. The tube is disposed near the barrier, and the tube has a microfluidic channel. The indexer guides the aqueous fluid and the organic fluid into the microfluidic channel so as to form droplets of the aqueous fluid.

METHOD OF PERFORMING DROPLET-BASED ASSAYS

Method of analysis. In the method, a first emulsion and a second emulsion substantially separated from one another by a spacer fluid may be formed. The first emulsion, the spacer fluid, and the second emulsion may be flowed in a channel from a fluid inlet to a fluid outlet of a heating and cooling station having two or more temperature-controlled zones, such that each emulsion is thermally cycled to promote amplification of a nucleic acid target in droplets of the emulsion. Amplification data may be collected from individual droplets of each emulsion downstream of the heating and cooling station. A level of the nucleic acid target present in each emulsion may be determined based on the amplification data collected from the individual droplets of the emulsion.

Packed bed emulsification

A system and method for producing fine droplets of polysaccharide from a premixed water-in-oil emulsion uses a packed bed (5) comprising hydrophilic beads (7).

NOVEL METHODS FOR MANUFACTURING AN ADJUVANT

The present invention relates to compositions and methods for manufacturing an adjuvant comprising a saponin using a microfluidic device and to aspects thereof.

Milk Protein Concentrate-based Microencapsulation Wall Material and Microcapsules

The disclosure discloses a milk protein concentrate-based microencapsulation wall material and microcapsules, and belongs to the technical field of microcapsule preparation. In the disclosure, liquid or solid microcapsules are prepared by performing cation exchange treatment on milk protein concentrates, and then using the treated milk protein concentrates as a wall material. The prepared microcapsules have good physical and chemical stability during storage, and are suitable for protecting active functional factors and to be applied in the fields of food, medicine, health care products, cosmetics, daily chemicals and the like.

System for Making a Composition of Matter
20210060518 · 2021-03-04 ·

A system for making a composition of matter that may include a neutralization reactor; an oil phase mixer or preparation vessel; an aqueous phase mixer or preparation vessel; an emulsifier; a homogenizer or comparable; a polymerization reactor, which may be a tube reactor; and an inversion vessel or comparable. The system may be suitable to make or otherwise produce the composition that includes by weight percent about: 15-25% oil phase; 35-50% water; 20-35% polymer; 0-10% surfactant; and 0-3% other trace materials.

Process for production of nano-microemulsion system of plant oil triglycerides

The application refers to process for production of a nano-microemulsion system of plant oil triglycerides, including: (i) preparing a dispersed phase plant oil triglyceride; (ii) preparing a carrier made from a mixture of propylene glycol monocaprylate and lecithin by a weight ratio of 5-6:1-1.5; (iii) adding the carrier to the dispersed phase by a weight ratio of 3-4:1-1.5, wherein the dispersed phase temperature is maintained between 60-100 C. while stirring under vacuum, followed by introduction of the whole mixture through the high-pressure microjet homogenizer; (iv) adding Tween 80 and Tween 60 to the solution mixture obtained in step (iii) by a weight ratio of 3-4:1-1.5:1-1.5, wherein the temperature of the dispersed phase is continuously maintained between 60-100 C. while stirring under vacuum; and (v) forming a nano-microemulsion system of plant oil triglycerides by cooling the mixture, followed by homogenization of the mixture by ultrasonication to achieve a droplet size of less than 100 nm, quality control of the resultant product by dissolution thereof in water and measurement of the transparency, in which if the required transparency is not met, continue to heat and measure the transparency until the required transparency is met, then stop the reaction, and emulsification of the mixture to obtain a nano-microemulsion system of plant oil triglycerides.

METHOD FOR PREPARING LIPOSOME COMPRISING ULTRASOUND REACTIVE MICROBUBBLE FOR DRUG DELIVERY AND LIPOSOME USING SAME
20210015751 · 2021-01-21 ·

Provided are a method for preparing liposomes comprising ultrasound reactive microbubbles for drug delivery, comprising (a) a step of producing ultrasound reactive microbubbles comprising an inert gas therein and having a first shell formed on the outer surface thereof, followed by forming a uniform size distribution of the ultrasound reactive microbubbles through an extruder; and (b) a step of producing liposomes comprising the ultrasound reactive microbubbles distributed in a uniform size and a medicament therein and having a second shell formed on the outer surface thereof, followed by forming a uniform size distribution of the liposomes through an extruder; and a liposome using same.

MICRODROPLET/BUBBLE-PRODUCING DEVICE

The invention provides a microdroplet- or bubble-producing device that does not require separate through-holes for different liquid droplet/air bubble-producing flow channels. The droplet-producing flow channels are configured in a three-dimensional manner unlike in a conventional device where they are configured in a two-dimensional plane, and therefore the flow channels can be provided in a more high-density configuration than the prior art. In the microdroplet/bubble-producing device comprising slit(s) and the row of the plurality of microflow channels, the slit(s) is/are a continuous phase supply slit, a dispersion phase supply slit and a discharge slit, the plurality of microflow channels are configured so that the ends of the slit(s) and the two supply ports on both sides or the supply port and discharge port on either side are mutually connected, and at the sites of connection between the microflow channels and the slit(s), the dispersion phase undergoes shear with the continuous phase flow as the driving force, producing droplets or air bubbles of the dispersion phase, which are recovered from the discharge port.

SYSTEM AND METHOD FOR MAKING MICROSPHERES AND EMULSIONS

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.