A method for producing microcapsules is disclosed. The method includes providing a core liquid including one or more oils and one or more surfactants and a shell liquid including water, one or more surfactants and at least one wall forming material. A plurality of liquid droplets are formed in a formation zone and the water is evaporated within a drying zone of a drying chamber.

A method for producing microcapsules is provided. The method includes providing a core liquid comprising one or more oils and one or more surfactants and a shell liquid comprising water, one or more surfactants and at least one wall forming material. The method further includes forming a plurality of liquid droplets within a gas, wherein each of the plurality of liquid droplets has a core formed from the core liquid and a shell surrounding the core formed from the shell liquid, wherein the core liquid and shell liquid have a dynamic spreading coefficient greater than zero at 0.03 seconds. At least some of the water is evaporated within a drying chamber to form microcapsules.

A method for producing microcapsules is disclosed. The method includes providing a core liquid having one or more oils and one or more surfactants and providing a shell liquid including water, one or more surfactants and at least one wall forming material having a glass transition temperature, Tg, greater than 50 C.

Methods and devices for producing a population of liposomes are provided. Aspects of the methods include applying a centrifugal force to a suspension of liposomes in a manner sufficient to pass the liposomes through a porous membrane to produce a population of liposomes. Aspects of the invention further include devices, systems and kits useful for performing the methods.

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

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.

An encapsulation system and method including a solution having a first system with a first rate of removal, a second system with a second rate of removal, and a material soluble in the first system, but not soluble in the second system. The first rate of removal is quicker than the second rate of removal, and removal of the first system from the solution creates a concentration of the second system and the material migrates around the second system. Thus, the material creates a shell around the second system, generating a capsule with a shell of the material and a core of the second system. Such material may include a polymer, copolymer, or block copolymer, while the second system is poor solvent for the material, such as hexadecane or Oil Red O. The first system is a good solvent for the material and is readily removable from solution via evaporation during processes like electrospraying.

A benefit agent delivery particle comprising a core-shell structure in which a shell entraps a core containing benefit agent, wherein said shell comprises polyester.

A benefit agent delivery particle comprising a core-shell structure in which a shell of polymeric material entraps a core containing benefit agent, wherein said benefit agent comprises an ester oil.

A porous microsphere and a method for preparing the same includes the following steps. A copolymer having a vinylbenzyl chloride unit and a vinylbenzyl alcohol unit is dissolved in an organic solvent, and inorganic particles are dispersed in the organic solvent to form a mixed suspension. An aqueous solution containing a surfactant is provided. The mixed suspension is emulsified in the aqueous solution to form an emulsion. The emulsion is heated to evaporate the organic solvent to obtain inorganic-composite porous microspheres suspended in water. The copolymer in the formed porous microspheres can be further carbonized or removed to produce inorganic-based porous microspheres containing carbon or not containing carbon.