A kind of nanoscale drug carrier loaded with methylprednisolone and preparation method thereof
A methylprednisolone and nano-scale technology, applied in the field of medicine, can solve the problems of lack of obvious curative effect, narrow treatment time window, and many complications in the treatment of spinal cord injury, so as to avoid toxic and side effects, high physiological safety performance, The effect of high tissue compatibility
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Embodiment 1
[0024] A method for preparing a novel nanoscale drug carrier loaded with methylprednisolone, comprising two steps: the synthesis of ibuprofen-modified dextran nanospheres and the preparation of novel nanoparticles loaded with methylprednisolone , to complete the preparation of a novel nanoscale drug carrier loaded with methylprednisolone; the specific steps are as follows:
[0025] The synthetic concrete steps of ibuprofen modified dextran nano microspheres are as follows:
[0026] (1) Add 0.5g of ibuprofen into 4ml of dimethyl sulfoxide solvent and stir evenly at room temperature;
[0027] (2) Add 0.43g of N,N'-carbonyldiimidazole to the above mixture, and stir at room temperature for 0.5 hours;
[0028] (3) Add 0.5g of dextran to the mixture obtained in step (2), and stir and react at 75°C for 12 hours;
[0029] (4) Precipitate the mixed solution obtained in step (3) in 100ml of ice water, filter the precipitate, and wash the precipitate with double distilled water for 3 t...
Embodiment 2
[0036] A method for preparing a novel nanoscale drug carrier loaded with methylprednisolone, comprising two steps: the synthesis of ibuprofen-modified dextran nanospheres and the preparation of novel nanoparticles loaded with methylprednisolone , to complete the preparation of a novel nanoscale drug carrier loaded with methylprednisolone; the specific steps are as follows:
[0037] The synthetic concrete steps of ibuprofen modified dextran nano microspheres are as follows:
[0038] (8) Add 0.5g of ibuprofen into 10ml of dimethyl sulfoxide solvent, and stir evenly at room temperature;
[0039] (9) Add 0.43g of N,N'-carbonyldiimidazole to the above mixture, and stir at room temperature for 2 hours;
[0040] (10) Add 0.5 g of dextran to the mixture obtained in step (8), and stir and react at 85°C for 36 hours;
[0041] (11) Precipitate the mixed solution obtained in step (10) in 100ml of ice water, filter the precipitate, and use double distilled water to wash the precipitate f...
Embodiment 3
[0048]A method for preparing a novel nanoscale drug carrier loaded with methylprednisolone, comprising two steps: the synthesis of ibuprofen-modified dextran nanospheres and the preparation of novel nanoparticles loaded with methylprednisolone , to complete the preparation of a novel nanoscale drug carrier loaded with methylprednisolone; the specific steps are as follows:
[0049] The synthetic concrete steps of ibuprofen modified dextran nano microspheres are as follows:
[0050] (15) Add 0.5g of ibuprofen into 5ml of dimethyl sulfoxide solvent, and stir evenly at room temperature;
[0051] (16) Add 0.43g of N,N'-carbonyldiimidazole to the above mixture, and stir at room temperature for 1 hour;
[0052] (17) Add 0.5 g of dextran to the mixture obtained in step (16), and stir and react at 80°C for 24 hours;
[0053] (18) Precipitate the mixed solution obtained in step (17) in 100ml of ice water, filter the precipitate, and wash the precipitate with double distilled water for...
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