Method for preparing medicinal transdermal material
A technology of transdermal and preparation steps, which is applied in the field of preparation of medicinal transdermal materials, which can solve the problems of secondary infection of wounds, adhesive wounds, poor permeability, etc., and achieve comfortable application, good affinity, and large drug loading capacity. Effect
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example 1
[0017] First, take 300mL of the urine of a lactating baby and add it to the beaker, then add 20% sodium hydroxide solution to adjust the pH to 7.2, let it stand for 1 hour, draw 100mL of the supernatant with a syringe, add it to the beaker, and add it while stirring 30g of ammonium sulfate was then placed in a centrifuge, centrifuged at 3000r / min for 20min, and the lower precipitate was collected; the above lower precipitate was added to a beaker, and 100mL of deionized water was added, stirred for 20min, and dissolved to obtain a solution. The solution was added to a diethylaminoethyl cellulose column, eluted with 100mL mass fraction of 30% ammonium chloride as a solvent, collected the eluate, and placed in a spray dryer to spray dry to obtain a solid, which was used for subsequent use; Take 20g of silk and add it to a beaker, then add 400mL of 10% sodium carbonate solution by mass fraction, heat to boiling, keep warm for 1h, filter to obtain degummed silk, and add it to the b...
example 2
[0020]First, take 400mL of lactating infant urine and add it to the beaker, then add 20% sodium hydroxide solution to adjust the pH to 7.4, let it stand for 2 hours, draw 200mL of the supernatant with a syringe, add it to the beaker, and add it while stirring 35g of ammonium sulfate was then placed in a centrifuge, centrifuged at 4000r / min for 30min, and the lower precipitate was collected; the above lower precipitate was added to a beaker, and then 200mL of deionized water was added, stirred for 30min, and dissolved to obtain a solution. The solution was added to a diethylaminoethyl cellulose column, eluted with 200mL mass fraction of 30% ammonium chloride as a solvent, collected the eluate, and placed in a spray dryer to spray dry to obtain a solid, which was used for subsequent use; Take 30g of silk and put it into a beaker, then add 500mL of 10% sodium carbonate solution by mass fraction, heat to boiling, keep warm for 2h, filter to obtain degummed silk, and add it to the b...
example 3
[0023] First, take 350mL of the urine of a lactating baby and add it to a beaker, then add 20% sodium hydroxide solution to adjust the pH to 7.3, let it stand for 1.5h, draw 150mL of the supernatant with a syringe, add it to the beaker, and stir Add 40g of ammonium sulfate, then place it in a centrifuge, centrifuge at 3500r / min for 25min, and collect the lower precipitate; add the above lower precipitate into a beaker, then add 150mL of deionized water, stir for 25min, and dissolve it to obtain a solution. Add the solution to a diethylaminoethyl cellulose column, elute with 150 mL of ammonium chloride with a mass fraction of 30% as a solvent, collect the eluate, and spray dry it in a spray dryer to obtain a solid for subsequent use; Weigh 25g of silk and add it to a beaker, then add 450mL of 10% sodium carbonate solution, heat to boiling, keep warm for 1.5h, filter to obtain degummed silk, and add it to the beaker, then add 250mL of 30% sodium carbonate solution Calcium chlori...
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