Immunomodulator polypeptide slow-release microsphere preparation and preparation method thereof
A slow-release technology for immunomodulators and polypeptides, which can be used in pharmaceutical formulations, peptide/protein components, medical preparations of non-active ingredients, etc. Dosing frequency, effect of improving adaptability
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Embodiment 1
[0016] Weigh 10g thymopentin, 5g gelatin, 5g glycerin and dissolve in purified water to obtain the inner water phase; weigh 160g polylactide and dissolve it in dichloromethane to obtain the oil phase; put the oil phase and the inner water phase in a stirrer In the room, put it on the emulsification disperser at room temperature at high speed (30000rpm) for 30 seconds to form a W / O emulsion; prepare 50ml of polyvinyl alcohol solution with a concentration of 5%, and then transfer the obtained W / O emulsion to 50ml5% Put it in the polyvinyl alcohol solution, place it on an emulsifying disperser at a speed of 5000rpm, and homogenize it for 1 minute to obtain a W / O / W type double emulsion; add the W / O / W double emulsion into purified water, and stir magnetically for 2 hours at room temperature, Remove the organic solvent, ultracentrifuge, collect the obtained microspheres, wash with distilled water for several times, then collect by centrifugation, add 5 g of sorbitol, and freeze-dry t...
Embodiment 2
[0027]Weigh 10g thymopentin, 2g gelatin, 2g glycerin and dissolve in purified water to obtain the inner water phase; weigh 45g polyglycolide and dissolve it in dichloromethane to obtain the oil phase; put the oil phase and the inner water phase under stirring In the container, put it on the emulsification disperser at room temperature at high speed (30000rpm) for 30 seconds to form a W / O emulsion; prepare 50ml of polyvinyl alcohol solution with a concentration of 5%, and then transfer the obtained W / O emulsion to 50ml5 % polyvinyl alcohol solution, placed on an emulsifying disperser at a speed of 5000rpm, and homogenized for 1 minute to obtain a W / O / W type double emulsion; add W / O / W double emulsion to purified water, and magnetically stir at room temperature for 2 hours , remove the organic solvent, ultracentrifuge, collect the obtained microspheres, wash with distilled water for several times, then collect by centrifugation, add 5g of mannitol, and freeze-dry to obtain a prepa...
Embodiment 3
[0038] Weigh 10g thymopentin, 2g gelatin, 2g glycerin and dissolve in purified water to obtain the inner water phase; weigh 25g polylactide-glycolide and dissolve it in dichloromethane to obtain the oil phase; mix the oil phase and the inner water phase Put it in a stirrer, and put it on an emulsifying disperser at room temperature at high speed (30000rpm) for 30 seconds to form a W / O emulsion; prepare 50ml of polyvinyl alcohol solution with a concentration of 5%, and then mix the obtained W / O emulsion Transfer to 50ml of 5% polyvinyl alcohol solution, put it on an emulsification disperser at a speed of 5000rpm, and mix it evenly for 1 minute to obtain a W / O / W double emulsion; add the W / O / W double emulsion to purified water, and magnetically Stir for 2 hours, remove the organic solvent, collect the obtained microspheres by ultracentrifugation, wash with distilled water for several times, then collect by centrifugation, add 2g of lactose, and freeze-dry to obtain an immunomodula...
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