A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.

Methods of making personal care compositions including microcapsules and methods of enhancing the efficacy of the microcapsules in said personal care compositions.

Methods of making personal care compositions including microcapsules and methods of enhancing the efficacy of the microcapsules in said personal care compositions.

Provided is a method for producing a liposome having safety and stability. According to the present invention, it is possible to provide a method for producing a liposome, including a step of mixing an oil phase with at least one lipid dissolved in an organic solvent and a water phase and stirring an aqueous solution containing the lipids, and a step of evaporating the organic solvent from the aqueous solution containing the liposomes obtained in the stirring step, in which the organic solvent is a mixed solvent of a water-soluble organic solvent and an ester-based organic solvent.

The invention relates to a coating composition for making a porous inorganic oxide coating layer on a substrate, the composition comprising an inorganic oxide precursor as binder, a solvent, and a synthetic polyampholyte as pore forming agent. The size of the pores in the coating can be advantageously controlled by the comonomer composition of the polyampholyte, and/or by selecting conditions like temperature, pH, salt concentration, and solvent composition when making the composition. The invention also relates to a method of making such coating composition, to a process of applying a coating on a substrate using such composition, and to such coated substrate showing a specific combination of optical and mechanical properties.

A solvent removing apparatus includes a container accommodating an emulsion including a first raw material in a continuous phase and a second raw material in a dispersed phase, a filter unit connected to the inside of the container, receiving the emulsion from the container, filtering a portion of the continuous phase of the emulsion and the solvent in the continuous phase, and then supplying the remaining emulsion back to the container, a supply unit connected to the inside of the container and supplying the first raw material to the inside of the container, and a stirring device for stirring the emulsion in the container by generating a flow.

The present invention provides polymersomes comprising amphiphilic block-copolymers and their use to quantify ammonia in samples (e.g., body fluid samples). More particularly, it provides a polymersome comprising (a) a membrane, which comprises a block copolymer of poly(styrene) (PS) and poly(ethylene oxide) (PEO), wherein the PS/PEO molecular weight ratio is higher than 1.0 and lower than 4.0; and (b) a core which encloses an acid and at least one pH-sensitive dye. Compositions, strips and kits comprising the polymersomes are also provided along with methods of quantifying ammonia in a sample using the polymersomes, compositions and kit.

The present invention discloses a microencapsulated gardenia yellow pigment and its preparation method, relating to gardenia yellow pigment microencapsulation technology. The present invention microencapsulates gardenia yellow pigment using a co-encapsulation polymer as the microcapsule wall material. Gardenia yellow pigment exhibits good light and heat resistance under neutral or slightly alkaline conditions; however, its light and heat resistance decreases significantly and it is prone to browning under low pH conditions. To avoid excessive release under acidic conditions, the invention employs a co-encapsulation polymer to construct a pH-responsive microcapsule, which slows down or halts the release rate in acidic conditions, while accelerating the release in alkaline conditions. In this application, polyvinylpyridine is used as a release switch. Polyvinylpyridine is a weakly basic polymer that ionizes at neutral and low pH, and protonates at high pH, causing it to swell and expand the intermolecular gaps, thus speeding up the release rate.

The present disclosure provides a method for digitally manufacturing a scratch and sniff portion on a substrate with microencapsulated fragrance varnish and the resulting scratch and sniff product. The method can include steps of printing a base image on a substrate using a digital ink and identifying the scratch and sniff portion on the substrate for application of the microencapsulated fragrance varnish. The method can further include applying the microencapsulated fragrance varnish to the scratch and sniff portion on the substrate using a digital printing process with a large orifice print head. The microencapsulated fragrance varnish can require physical activation to release the fragrance.