摘要:
The present invention provides microcapsules encapsulating hydrophilic or hydrophobic active agents in an inorganic shell, processes for their preparation and compositions comprising them.
摘要:
A 5-aminolevulinic acid conjugated quantum dot nanoparticle is useful for treating cancer by administering the 5-aminolevulinic acid conjugated quantum dot nanoparticle in photodynamic therapy as a precursor of both a fluorescence label and a photosensitizer.
摘要:
This invention relates to a method for sealing dentinal tubules exposed at the tooth surface as a consequence of enamel defects, based on amorphous calcium polyphosphate (Ca-polyP) nano- or microparticles that strongly bind both to tooth enamel, cementum and dentin surfaces. The inventive method can also be used for the production of morphogenetically active tooth implants. A further aspect of this invention concerns the incorporation of such nano- or microparticles, after encapsulation of retinol ("retinol/aCa-polyP nano- or microspheres"), into wound dressings and related materials that are made, e.g., by electrospinning. The resulting, inventive retinol/aCa-polyP nano- or microspheres fiber mats show antimicrobial and wound healing properties and was found to increase the expression of the genes encoding for leptin and the leptin receptor, as well as the fatty acid binding protein 4 (FABP4) in a synergistic manner. This inventive material is the first material that can be used to promote wound healing through affecting the leptin / leptin receptor expression.
摘要:
Salt formulations, which are resistant to moisture and cooking conditions, are described herein. The formulations provide particles of micronutrients and vitamins encapsulated within heat resistant pH-sensitive water-insoluble polymers, which are packaged within a salt shell. The pH-sensitive, water-insoluble, thermally stable materials stabilize the micronutrients, particularly at high temperatures, such as during food preparation and cooking, and release the micronutrients at the desired locations such as the stomach, small intestine, etc. Preferred pH-sensitive polymers release at a low pH, less than the pH present in the stomach. The particles can be used to deliver daily-recommended doses of micronutrients simultaneously with salt, eliminating the need for vitamin pills. This is particularly important in populations suffering from severe malnutrition.
摘要:
The present invention relates to a process for producing inorganic particulate material, the material obtainable by such process, a modified release delivery system comprising the material and the use of the material for the administration of a bioactive agent.
摘要:
Amorphous magnesium-substituted calcium, phosphate compositions and their medical uses are described, in particular for use in delivering cargo materials, such as cargo molecules or cargo nanoparticles contained in pores of the amorphous magnesium- substituted calcium phosphate to cells of the immune system, fo example as therapeutic approaches for the treatment of inflammatory bowel diseases, and in particular Crohn's disease, autoimmune diseases, allergy and for therapeutic vaccination.
摘要:
The present invention includes a low dose and sustained release formulation of 2,4-dinitrophenol (DNP). The compositions of the invention are useful for preventing or treating a disease or disorder, such as non-alcoholic fatty liver disease, non-alcoholic steatohepatitis, insulin resistance and/or diabetes, in a subject in need thereof.
摘要:
A process for the preparation of a microcapsule composition, wherein the shell of the microcapsules is essentially made of silica and the core comprises at least one lipophilic component, comprising the steps of: a) providing an aqueous dispersion comprising at least one lipophilic component (A) and b1) adding to the aqueous dispersion provided in step a) a water glass solution and an acid, or b2) adding to the aqueous dispersion provided in step a) a silicic acid solution and a base, wherein the addition is effected such that the pH of the mixture resulting during the addition of the water glass solution in step b1 ) or during the addition of silicic acid solution in step b2) is kept in a range of 6 to 9.
摘要:
A composition including calcium salt and silica, wherein the silica is in the form of a silicate that is adsorbed onto the surface of the calcium salt, wherein the silica is not incorporated into the structure of the calcium salt, and wherein the composition is bioactive.
摘要:
A powdered polymeric coating composition for coating liquid filled beads or capsules comprising modified cellulose, alkali salts of alginate, natural gum, starch, metal oxide, wherein said modified cellulose, alkali salts of alginate, natural gum, starch, metal oxide are present in amounts of 5 to 20%, 60 to 85%, 2 to 12%, 2 to 10%, 0.5 to 5% w/w by weight of the powdered polymeric coating composition and are mixed in ratios ranging from 0.5:8:0.5:0.25:0.1 to 2:15:2:2:1, preferably 1:8:2:0.25:0.1 to 1:12:1 :1:0.2. Also provided are methods for coating and preparing coating liquid filled beads or capsules with the powdered polymeric coating composition.