A kind of silk fibroin hydrogel for skin care and preparation method thereof
A technology of silk fibroin and hydrogel, applied in skin care preparations, cosmetic preparations, pharmaceutical formulations, etc., can solve the problems of not using silk, and achieve a wide range of applications, good biocompatibility and bioavailability Absorbency, easy to store for a long time
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Embodiment 1
[0021] Embodiment 1 Preparation of silk fibroin hydrogel
[0022] According to the composition of each experimental group and control group of silk fibroin hydrogel in Table 1, weigh each component, dissolve additional components such as active factors and stabilizers to form an aqueous solution, add silk fibroin, snail mucin, sterol and vitamin C, stirred evenly, freeze-dried to remove water, gamma-ray irradiated and sterilized, sealed and stored, and added with clean water to dissolve before use to form a silk fibroin hydrogel solution.
[0023] Table 1 Composition of each experimental group of silk fibroin hydrogel
[0024]
[0025]
[0026] Note: " / " means that this component is 0; the content in brackets after the number under "sterol" refers to the specific name of sterol.
Embodiment 2
[0027] Performance detection and application effect of embodiment 2 silk fibroin hydrogel
[0028] (1) Determination of swelling rate
[0029] The hydrogels prepared by each experimental group and control group in Example 1 were spread into a film, cut into a size of 0.07cm × 1.2cm × 4cm after drying, completely dried in an oven at 80°C, and then each group was again The film samples were immersed in water to make them swell, and the swelling rate of each sample was calculated according to the following formula to evaluate the water retention capacity of the silk fibroin hydrogel.
[0030] Swelling rate=(initial weight-dry weight) / initial weight×100
[0031] (2) Determination of tensile strength
[0032] The hydrogels prepared by each experimental group and control group in Example 1 were spread into a film, dried and cut into a size of 1.0 cm×8.0 cm×0.07 cm. In the tensile tester (MInimat type testing machine of U.S. Rheometric Scientific company), it is 10mm / min to apply ...
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