5results about How to "Achieve slow release" patented technology

The embodiment of the invention provides a buccal product and a preparation method thereof, the buccal product comprises a functional layer, the functional layer comprises a film-forming base material and an active substance and an essence microcapsule dispersed in the film-forming base material, the wall material of the essence microcapsule comprises Arabic gum, the core material of the essence microcapsule comprises oil-soluble essence, and the oil-soluble essence is an oil-soluble essence. The volatile oil-soluble essence serving as the core material is wrapped in the microcapsule taking the Arabic gum as the wall material, and the volatile oil-soluble essence and the active substance are integrated into the functional layer, so that the essence can be slowly released by utilizing a compact wall material structure formed by the Arabic gum, and the essence can be continuously utilized to cover the peculiar smell of the active substance.

This invention belongs to the field of medical materials technology, specifically referring to a drug-loaded porous magnesium alloy bone scaffold and its preparation method. The drug-loaded porous magnesium alloy bone scaffold is composed of the following raw materials in parts by weight: 55 parts magnesium alloy, 6-10 parts corrosion inhibitor, 1 part drug-loaded gel, 2-4 parts antibacterial bone-promoting agent, and 3 parts gelatin. This invention achieves sustained drug release by fabricating magnesium alloy into microtubes and filling the interior with a drug-loaded hydrogel; gelatin is sprayed onto the surface and adhered through Mg-N coordination bonds, bonded to the corrosion inhibitor, and hot-pressed. The components form an interpenetrating network with the gelatin to enhance bonding and react with the magnesium alloy to form a protective film; simultaneously, Ca... 2+ The process initiates cross-linking of sodium alginate, forming a stable anti-corrosion barrier. Finally, an antibacterial and bone-promoting mixture containing modified chitosan and thermosensitive polymer is sprayed on. Through complexation reaction and temperature control, the bone-promoting components are evenly dispersed around the implant, improving tissue compatibility.

The invention discloses a fragrant pomelo peel essential oil compound preservative capable of improving the storage quality of prunus salicina, and belongs to the technical field of fruit preservation. The preservative is prepared from the following components in percentage by mass: 0.1 to 1.0 percent of fragrant pomelo peel essential oil, 0.5 to 2.0 percent of chitosan, 0.3 to 1.5 percent of modified white carbon black, 0.05 to 0.2 percent of antioxidant, 0.2 to 1.0 percent of glycerol, 0.1 to 0.5 percent of film-forming agent and the balance of deionized water. The modified white carbon black is prepared by step-by-step modification of a silane coupling agent, guar gum hydroxypropyl trimethyl ammonium chloride and sodium lignin sulfonate, can efficiently adsorb and slowly release essential oil, and enhances the compatibility with chitosan and the mechanical properties of a film layer. According to the preservative disclosed by the invention, a composite coating film is formed by dip-coating, so that water loss, browning and microbial decay after the prunus salicina is picked can be remarkably inhibited, the shelf life of the prunus salicina is prolonged to 12-15 days at normal temperature, and the preservative is suitable for large-scale storage and preservation of the prunus salicina.

The utility model relates to a kind of sneakers of wide type shoe sole, including upper and shoe sole, and the palm part and heel of shoe sole are equipped with damping device in, the damping device includes base and shell, the base is equipped with recess, the recess is filled with medicament material, and the top wall of accommodating cavity and recess gap are left gap accommodating cavity is filled with slow-release material, conveying channel is equipped in the shell outer wall and is spirally coiled along its axial direction, shoe sole upper surface is equipped with spiral guide slot, and accommodating cavity is connected guide slot by conveying channel. The recess of the utility model is filled with antibacterial deodorization medicament, medicament is covered with slow-release material, conveying channel is spirally coiled in shell outer wall, and slow-release material and conveying channel are cooperated to form double restraint, realize the slow-release of traditional chinese medicine effective component, avoid component sudden release waste under exercise pressure, significantly prolong antibacterial deodorization effective period.

This invention discloses a method for preparing a microcapsule-structured specialty coffee extract, the extract itself, and its applications, belonging to the field of fragrance and flavor technology. The method includes: adding an emulsifier to the specialty coffee extract and emulsifying it at 1530°C to obtain an emulsion; preheating a melamine resin prepolymer to 4045°C and adding it to the emulsion; raising the temperature to 4550°C within 15 minutes and adjusting the pH to 4.5-5.5 for the first stage reaction; then raising the temperature to 6080°C for the second stage reaction; and finally cooling and adjusting the pH to 7.5-8.5 to terminate the reaction, thus obtaining the microcapsule-structured specialty coffee extract. This invention, through room-temperature emulsification and a two-stage temperature-controlled process, effectively preserves the complex aroma of the specialty coffee extract. The resulting microcapsule structure is dense and stable, possessing both sustained-release and rapid aroma release via friction, significantly extending the aroma retention time. This invention also provides the application of the microcapsule-structured specialty coffee extract in the preparation of pet products.