3results about How to "Effective Antioxidant" patented technology

The invention discloses an antioxidant carbon aerogel material and a preparation method thereof. The method comprises the following steps: sequentially adding a solvent, a boron-containing modifier and a silicon-containing modifier into phenolic resin for esterification reaction; sequentially curing, drying and carbonizing to obtain boron-silicon modified carbon aerogel; depositing a SiC inner coating on the boron-silicon modified carbon aerogel under the assistance of supercritical CO2; a Zr-Si ceramic oxygen barrier layer and a SiO2 sealing and filling layer are sequentially prepared through a sol-gel method, and the carbon aerogel material with the SiC-Zr / Si-SiO2 composite coating is prepared. The invention also provides the aerogel material prepared by the method, the oxidation resistance of the aerogel material is obviously improved, and the aerogel material can be used for preparing a thermal insulation material applied to the field of high-temperature thermal protection.

The present invention relates to the field of genetic engineering, protein engineering technology and its application, and discloses a novel recombinant collagen and its application, including any one of the recombinants COL17-CO-1, COL17-CO-2, COL17-CO-3 or COL17-CO-4 of the specific functional region of human type XVII collagen and the 1232-1466 region of human type III collagen, wherein the amino acid sequences of the specific functional regions in the COL17-CO-1, COL17-CO-2, COL17-CO-3 and COL17-CO-4 are SEQ ID No.2, SEQ ID No.6, SEQ ID No.8 and SEQ ID No.10, respectively. The recombinant exhibits better ability to promote cell proliferation, promotes the expression of proline hydroxylase (HYP), improves the antioxidant capacity of skin cells, improves the expression of multiple collagens in skin cells, and better reduces the expression of collagen degradation-related bases MMP-3 and MMP-9.