Biological mask based on amniotic basement membrane and preparation method
A technology of biological facial mask and amniotic membrane basement membrane, applied in the field of biomedical materials, can solve the problems of skin damage, single, chemical composition facial mask stimulation, etc., and achieve the effects of repairing tissue and scars, and simple preparation process
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[0036]In addition, the present application also provides a preparation method of the amniotic basement membrane-based biological mask, which includes the following steps: cross-linking the mask carrier with the surface of the epithelial cell layer of the amnion basement membrane through a chemical condensation reaction.
[0037] In some of the embodiments, the facial mask carrier is made of natural polymer material or amniotic membrane without sponge layer, fibroblast layer and compact layer.
[0038] In some of the embodiments, the natural polymer material includes one or more of collagen, elastin, hyaluronic acid, gelatin, fibrinogen, and hydrogel.
[0039] In some of these embodiments, the amniotic basement membrane is the amniotic membrane. After removing the spongy layer, fibroblast layer and dense layer and retaining the epithelial cell layer and basement membrane, the amniotic membrane is crushed, lysed, separated and acid-base balanced. and made.
[0040] Specifically...
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[0048] Example - in vitro cell experiment test Cytotoxicity experiment of biomembrane based on amnion basement membrane The mouse fibroblasts in the logarithmic growth phase were inoculated in a 96-well culture plate, and each hole was inoculated with 1.5 / mL×10 4 / mL cell suspension 200 μL, cultured for 24 hours. The cytotoxicity test was carried out with the MTT cell proliferation and cytotoxicity detection kit: the experiment was divided into an experimental group and a control group. The experimental group was a multifunctional biological amnion mask prepared by the above preparation method, and the positive control group was a common chemical Component facial mask, the experimental group and the control group were operated according to the steps of the kit, and finally the absorbance at 570nm was measured with a microplate reader. The relative cell proliferation percentage (RGR) was calculated, and the level of cytotoxicity was assessed. The results are shown in Table 1: ...
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