Methods and systems for synthesizing multicompartment capsules are disclosed, as well as multicompartment polymer capsules formed in accordance with disclosed techniques. At least one plurality of polymer capsules are formed via a capsule-forming process. A feed solution and a reservoir solution are provided, each comprising a biopolymer. The feed solution biopolymer and the reservoir solution biopolymer have opposite charges. Droplets of the feed solution are introduced into the reservoir solution, thereby forming via electrostatic complexation a plurality of polymer capsules. At least a portion of the resulting polymer capsules are then encapsulated in a larger polymer capsule via a similar process, wherein the feed solution utilized for the encapsulation process also comprises the formed smaller capsules.

Methods and systems for synthesizing multicompartment capsules are disclosed, as well as multicompartment polymer capsules formed in accordance with disclosed techniques. At least one plurality of polymer capsules are formed via a capsule-forming process. A feed solution and a reservoir solution are provided, each comprising a biopolymer. The feed solution biopolymer and the reservoir solution biopolymer have opposite charges. Droplets of the feed solution are introduced into the reservoir solution, thereby forming via electrostatic complexation a plurality of polymer capsules. At least a portion of the resulting polymer capsules are then encapsulated in a larger polymer capsule via a similar process, wherein the feed solution utilized for the encapsulation process also comprises the formed smaller capsules.

The present invention relates to plant-based coacervate core-shell microcapsules, wherein the shell comprises a plant protein extract, as well as methods and uses of the same.

The present invention relates to plant-based coacervate core-shell microcapsules, wherein the shell comprises a plant protein extract, as well as methods and uses of the same.

The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of aminoplast core-shell microcapsules containing an active material, wherein the ampholyte copolymer comprises: 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group, 1 to 98 mol % of acrylic based monomer, 0 to 97 mol % of non-ionic monomer,
and wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.

The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of aminoplast core-shell microcapsules containing an active material, wherein the ampholyte copolymer comprises: 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group, 1 to 98 mol % of acrylic based monomer, 0 to 97 mol % of non-ionic monomer,
and wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.

PEGylated polyhemoglobin nanocapsules are provided, wherein the nanocapsules each include a core including polyhemoglobin, a polymer shell encapsulating the core, a polydopamine layer on an exterior surface of the shell, and poly(ethylene glycol) adhered by the polydopamine to the shell. A method of forming PEGylated polyhemoglobin nanocapsules includes extracting hemoglobin from red blood cells. The method further includes polymerizing the hemoglobin to provide polyhemoglobin. The polyhemoglobin is then encapsulated in a plurality of polymer shells to form a plurality of polyhemoglobin nanocapsules. In addition, a polydopamine is deposited on an external surface of the polyhemoglobin nanocapsules. Poly(ethylene glycol) is then adhered to the polyhemoglobin nanocapsules with the polydopamine to provide a plurality of PEGylated polyhemoglobin nanocapsules.

PEGylated polyhemoglobin nanocapsules are provided, wherein the nanocapsules each include a core including polyhemoglobin, a polymer shell encapsulating the core, a polydopamine layer on an exterior surface of the shell, and poly(ethylene glycol) adhered by the polydopamine to the shell. A method of forming PEGylated polyhemoglobin nanocapsules includes extracting hemoglobin from red blood cells. The method further includes polymerizing the hemoglobin to provide polyhemoglobin. The polyhemoglobin is then encapsulated in a plurality of polymer shells to form a plurality of polyhemoglobin nanocapsules. In addition, a polydopamine is deposited on an external surface of the polyhemoglobin nanocapsules. Poly(ethylene glycol) is then adhered to the polyhemoglobin nanocapsules with the polydopamine to provide a plurality of PEGylated polyhemoglobin nanocapsules.

The invention relates to a method for making a core-composite shell microcapsule slurry for the delivery of hydrophobic active ingredients such as fragrance components of perfume oils. The method includes forming an outer shell by coacervation surrounding an internal phase which contains the hydrophobic active ingredient; and forming an inner shell by interfacial polymerization at the interface between the internal phase and the outer shell. The internal phase contains the hydrophobic active ingredient. The microcapsules are typically incorporated in a consumer product wherein the composite shell prevents the hydrophobic active ingredient from release until desired, generally during use of the consumer product.

The invention relates to a method for making a core-composite shell microcapsule slurry for the delivery of hydrophobic active ingredients such as fragrance components of perfume oils. The method includes forming an outer shell by coacervation surrounding an internal phase which contains the hydrophobic active ingredient; and forming an inner shell by interfacial polymerization at the interface between the internal phase and the outer shell. The internal phase contains the hydrophobic active ingredient. The microcapsules are typically incorporated in a consumer product wherein the composite shell prevents the hydrophobic active ingredient from release until desired, generally during use of the consumer product.