Compound aescin A liposome hydrogel patch
A technology of compound aescin and hydrogel patch, which is applied in liposome delivery, pharmaceutical formula, active ingredient of salicylic acid, etc. It can solve unsatisfactory anti-swelling effect, poor transdermal absorption effect, and skin irritation Large and other problems, to achieve good transdermal absorption effect, high total transmittance, and small skin irritation
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Embodiment 1
[0029]
[0030] Preparation method: 1) Take 25g of soybean lecithin, 5g of cholesterol, and 0.5g of ascorbic acid in a container, add 200g of 30% ethanol solution to dissolve, then add 0.8g of aescin A, 2.5g of diethylamine salicylate, mix well, place Place in a constant temperature water bath at 45°C, and remove the solvent by rotary evaporation until a thin film is formed, then add PBS buffer solution with a pH of 6, stir and shake until a suspension is formed, filter, and collect the filtrate to obtain 65 g of liposome solution;
[0031] 2) Get 5g of Carbomer, add 60g of 30% ethanol solution and stir to fully swell, then add 2g of glycerin, 3.5g of azone and 65g of the liposome solution obtained in step 1), adjust the pH value to 6 with hydrochloric acid, continue to stir and mix Evenly and ultrasonically degassed to no bubbles, 135g of compound aescin liposome hydrogel was obtained, coated, dried until the surface was solidified, covered with a backing layer, cut into a ...
Embodiment 2
[0033]
[0034]
[0035] Preparation method: 1) Take 15g of lecithin, 8g of cholesterol, and 0.2g of ascorbic acid in a container, add 150g of 40% ethanol solution to dissolve, add 1.2g of aescin A sodium salt, 2g of diethylamine salicylate, mix well, and place Place in a constant temperature water bath at 40°C, and remove the solvent by rotary evaporation to form a thin film, then add PBS buffer solution with a pH of 5.5, stir and shake until a suspension is formed, filter, and collect the filtrate to obtain 55 g of liposome solution;
[0036] 2) Get 3 g of hydroxypropyl methylcellulose, add 70 g of 40% ethanol solution and stir to swell fully, then add 1.5 g of glycerin, 0.5 g of propylene glycol, 1.5 g of borneol, 1 g of peppermint and 55 g of the liposome solution obtained in step 1), Use hydrochloric acid to adjust the pH value to 5, continue to stir and mix, and ultrasonically degas until there are no bubbles to obtain 132g of compound aescin liposome hydrogel, appl...
Embodiment 3
[0038]
[0039] Preparation method: 1) Take 20 g of lecithin, 3 g of cholesterol, and 0.8 g of ascorbic acid in a container, add 150 g of 25% ethanol solution to dissolve, then add 0.5 g of escin A lysine salt, 4 g of diethylamine salicylate, and mix Evenly, place in a constant temperature water bath at a temperature of 50°C, and remove the solvent by rotary evaporation until a thin film is formed, then add PBS buffer solution with a pH of 7, stir and shake until a suspension is formed, filter, and collect the filtrate to obtain a liposome solution 70g;
[0040] 2) Take 4g of sodium alginate and 2g of gelatin, add 60g of 25% ethanol solution and stir to swell fully, then add 1g of glycerin, 2g of azone and 70g of the liposome solution obtained in step 1), adjust the pH value to 5.5 with hydrochloric acid, continue Stir and mix well and ultrasonically degas until there are no bubbles to obtain 139g of compound aescin liposome hydrogel, coat it, dry it until the surface is so...
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