Patent classifications
B01J13/20
Porous microsphere and method for preparing the same
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.
Porous microsphere and method for preparing the same
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.
Solvent-free Extractive Separation
Provided herein are polymeric capsules and methods for solvent-free extractive separation of ions from mixed solutions using polymeric capsules. The capsules can comprise a polymeric shell encasing an inner chamber and a lipophilic ligand within the polymeric shell. Methods for making the polymeric capsules are also provided.
Microcapsules modified with nanomaterial for controlled release of active agent and process for preparation thereof
The present invention disclosed a microcapsule modified with nanomaterial for controlled release of active agent comprising; a core comprising active agent and said polymer shell encompassing said core; characterized in that said polymer shell is made up of polymer nanocomposite and a process for the preparation thereof.
Microcapsules modified with nanomaterial for controlled release of active agent and process for preparation thereof
The present invention disclosed a microcapsule modified with nanomaterial for controlled release of active agent comprising; a core comprising active agent and said polymer shell encompassing said core; characterized in that said polymer shell is made up of polymer nanocomposite and a process for the preparation thereof.
Organic compounds
The invention relates to stable dispersion of negatively-charged aminoplast microcapsules in non-suspending detergent compositions containing an anionic surfactant. The microcapsules are stably dispersed by means of a cationic polyampholyte, which is embedded in the shells of said microcapsules.
SURFACE MODIFIED MICROCAPSULES
A method of preparing a microcapsule composition include the steps of: (a) providing a microcapsule formed of an encapsulating polymer having a primary or secondary amine group, (b) providing a deposition agent having a reactive group, and (c) forming a covalent bond between the primary or secondary amine group and the reactive group to graft the deposition agent to the encapsulating polymer. Also disclosed are consumer products containing these microcapsules.
Systems and methods for encapsulation and multi-step processing of biological samples
The present invention relates to methods and systems for isolation of species in semi-permeable capsules and processing of encapsulated species through series of steps and/or reactions. To produce capsules, first aqueous two-phase system (ATPS) droplets are generated using microfluidics system and then the hydrogel shell layer is hardened by inducing polymerization. As exemplified in this invention to achieve concentric ATPS droplet formation density-matched PEGDA and Dextran polymer solutions can be used. Once a capsule is formed, its composition can be changed by adding new reagents or replacing out old ones (e.g. by resuspending capsules in desired aqueous solution). The hydrogel shell of semi-permeable capsules can be dissolved at selected step during multi-step procedures in order to release the encapsulated species. The present invention exemplifies the isolation of individual cells within capsules and using the encapsulated cells for genotypic and phenotypic analysis. Finally, the present invention also exemplifies the use of capsules in multi-step procedures to perform complex biological reactions.
Liposome composition and method for producing same
Provided are a liposome composition which has a practically required long-term preservation stability, and which has a release rate of a drug on the order of several tens of hours due to releasability of a drug being able to be suitably controlled by rendering an inner water phase hyper-osmotic; and a method for producing the same. According to the present invention, it is possible to provide a liposome composition, including liposomes each of which has an inner water phase and an aqueous solution which constitutes an outer water phase and in which the liposomes are dispersed, in which the content of cholesterols is 10 mol % to 35 mol % with respect to the total amount of lipid components in the liposome composition, and each of the liposomes encapsulates a drug in a dissolved state, and an osmotic pressure of the inner water phase is 2-fold to 8-fold relative to the osmotic pressure of the outer water phase.
Liposome composition and method for producing same
Provided are a liposome composition which has a practically required long-term preservation stability, and which has a release rate of a drug on the order of several tens of hours due to releasability of a drug being able to be suitably controlled by rendering an inner water phase hyper-osmotic; and a method for producing the same. According to the present invention, it is possible to provide a liposome composition, including liposomes each of which has an inner water phase and an aqueous solution which constitutes an outer water phase and in which the liposomes are dispersed, in which the content of cholesterols is 10 mol % to 35 mol % with respect to the total amount of lipid components in the liposome composition, and each of the liposomes encapsulates a drug in a dissolved state, and an osmotic pressure of the inner water phase is 2-fold to 8-fold relative to the osmotic pressure of the outer water phase.