Sophocarpidine pH/ magnetic dual-sensitive hydrogel globule and preparation method thereof
A dual-sensitivity, matrine-based technology, applied in pharmaceutical formulations, organic active ingredients, medical preparations of non-active ingredients, etc., can solve toxic side effects and complications, large fluctuations in blood drug concentration, and patients are prone to Drug resistance and other problems, to achieve non-allergic, enhance clinical treatment effect, reduce adverse drug reactions and side effects
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Embodiment 1
[0022] 1) Weigh 0.04g of chitosan, sprinkle it evenly into 20ml of 1% acetic acid solution, leave it overnight, stir until it dissolves completely, and obtain a chitosan solution with a concentration of 0.2%, which is set aside.
[0023] 2) Weigh CaCl 2 0.5g, add to 20ml of above-mentioned 0.2% chitosan solution, stir to dissolve, obtain chitosan and CaCl 2 The mixed solution is set aside. CaCl 2 The concentration in chitosan solution is 2.5%.
[0024] 3) Weigh 0.25g of sodium alginate, sprinkle it evenly into 10ml of purified water, let it stand overnight, stir until completely dissolved, and obtain a sodium alginate solution with a concentration of 2.5%, which is set aside.
[0025] 4) Weigh 1.25g of matrine, Fe 3 o 4 Add 0.05g of nanoparticles to 10ml of the above-mentioned 2.5% sodium alginate solution, ultrasonicate for 30 minutes, and stir evenly to obtain 3 o 4 The suspension of nanoparticles and sodium alginate, set aside.
[0026] 5) Measure the above-mentione...
Embodiment 2
[0028] 1) Weigh 0.04g of chitosan, sprinkle it evenly into 20ml of 1% acetic acid solution, let it stand overnight, stir until it dissolves completely, and obtain a chitosan solution with a concentration of 0.2%, which is set aside.
[0029] 2) Weigh CaCl 2 0.5g, add to 20ml of above-mentioned 0.2% chitosan solution, stir to dissolve, obtain chitosan and CaCl 2 The mixed solution is set aside. CaCl 2 The concentration in chitosan solution is 2.5%.
[0030] 3) Weigh 0.15g of sodium alginate, sprinkle it evenly into 10ml of purified water, let it stand overnight, and stir until it is completely dissolved to obtain a sodium alginate solution with a concentration of 1.5%, which is set aside.
[0031] 4) Weigh 1.25g of matrine, Fe 3 o 4 Add 0.05g of nanoparticles to 10ml of the above-mentioned 1.5% sodium alginate solution, ultrasonically treat for 30 minutes, and stir evenly to obtain 3 o 4 The suspension of nanoparticles and sodium alginate, set aside.
[0032] 5) Measure...
Embodiment 3
[0034] 1) Weigh 0.04g of chitosan, sprinkle it evenly into 20ml of 1% acetic acid solution, leave it overnight, stir until it dissolves completely, and obtain a chitosan solution with a concentration of 0.2%, which is set aside.
[0035] 2) Weigh CaCl 2 0.5g, add to 20ml of above-mentioned 0.2% chitosan solution, stir to dissolve, obtain chitosan and CaCl 2 The mixed solution is set aside. CaCl 2 The concentration in chitosan solution is 2.5%.
[0036] 3) Weigh 0.20 g of sodium alginate, sprinkle it evenly into 10 ml of purified water, let it stand overnight, stir until it is completely dissolved, and obtain a sodium alginate solution with a concentration of 2.0%, which is set aside.
[0037] 4) Weigh 1.25g of matrine, Fe 3 o 4 Add 0.05g of nanoparticles to 10ml of the above-mentioned 2.0% sodium alginate solution, ultrasonicate for 30 minutes, and stir evenly to obtain matrine, Fe 3 o 4 The suspension of nanoparticles and sodium alginate, set aside.
[0038] 5) Measur...
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