Liposome complex not penetrating blood-brain barrier and preparation method thereof
A liposome complex, blood-brain barrier technology, applied in the field of medicine, can solve the problems of lack of good treatment measures and side effects, and achieve the effects of improving binding efficiency, prolonging shelf life and improving stability
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Embodiment 1
[0030] The invention provides a liposome complex impermeable to the blood-brain barrier, comprising: 4 parts of D-methionine, 8 parts of soybean lecithin, 4 parts of egg yolk phosphatidylinositol, 0.8 parts of cholesterol, chlorinated 2 parts of sodium, 6 parts of glucose, 0.5 parts of sodium bisulfite;
[0031] The present invention also provides a preparation method of a liposome complex impermeable to the blood-brain barrier, comprising the following steps:
[0032] S1. After uniformly mixing soybean lecithin, egg yolk phosphatidylinositol and cholesterol, dissolve it in 60 parts by weight of an organic solvent to obtain the first mixed solution, and heat the first mixed solution under 25 kHz ultrasonic waves to obtain the second mixed solution. The heat treatment of the mixed liquid is as follows: heat the mixed liquid for 3 minutes to 60°C and keep it for 5 minutes, then raise the temperature from 60°C for 5 minutes to 70°C and keep it for 10 minutes, then cool it down fr...
Embodiment 2
[0036] The liposome complex that does not pass through the blood-brain barrier includes by weight: 6 parts of D-methionine, 20 parts of soybean lecithin, 15 parts of egg yolk phosphatidylinositol, 2 parts of cholesterol, 4 parts of sodium chloride, glucose 8 parts, 1 part of sodium bisulfite;
[0037] The present invention also provides a preparation method of a liposome complex impermeable to the blood-brain barrier, comprising the following steps:
[0038] S1. After uniformly mixing soybean lecithin, egg yolk phosphatidylinositol and cholesterol, dissolve it in 120 parts by weight of an organic solvent to obtain the first mixed solution, and heat the first mixed solution under 31 kHz ultrasonic waves to obtain the second mixed solution. The heat treatment of the mixed liquid is as follows: heat the mixed liquid for 3 minutes to 60°C and keep it for 5 minutes, then raise the temperature from 60°C for 5 minutes to 70°C and keep it for 10 minutes, then cool it down from 70°C fo...
Embodiment 3
[0042] The liposome complex that does not pass through the blood-brain barrier includes by weight: 5 parts of D-methionine, 14 parts of soybean lecithin, 10 parts of egg yolk phosphatidylinositol, 1.4 parts of cholesterol, 3 parts of sodium chloride, glucose 7 parts, 0.8 parts of sodium bisulfite;
[0043] The present invention also provides a preparation method of a liposome complex impermeable to the blood-brain barrier, comprising the following steps:
[0044] S1. After uniformly mixing soybean lecithin, egg yolk phosphatidylinositol and cholesterol, they are dissolved in 90 parts by weight of an organic solvent to obtain the first mixed solution, and the first mixed solution is heated under 28 kHz ultrasonic waves to obtain the second mixed solution. The heat treatment of the mixed liquid is as follows: heat the mixed liquid for 3 minutes to 60°C and keep it for 5 minutes, then raise the temperature from 60°C for 5 minutes to 70°C and keep it for 10 minutes, then cool it d...
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