5results about How to "Inhibit peroxidation" patented technology

The utility model relates to medical instrument technical field provides a kind of flexible plasma patch, including first dielectric barrier layer, electrode layer, second dielectric barrier layer and medical film layer by upper to lower sequentially laminated settings, the electrode layer is suitable for connecting power module, for generating plasma, the medical film layer is suitable for contacting wound surface, the first dielectric barrier layer, the electrode layer, the second dielectric barrier layer and the medical film layer are all correspondingly provided with through-hole. The utility model is through setting corresponding through-hole, on the one hand make outside air pass through through-hole and enter wound surface, increase the generation amount of active particle, effectively improve the efficiency of sterilization and promote wound healing;On the other hand, the ozone generated by electrode layer discharge flows out from through-hole, thereby reducing ozone accumulation, avoiding the tissue oxidation stress caused by ozone accumulation, leading to cell membrane lipid peroxidation.

The invention relates to a system and method for preparing ketone through hydrogen peroxide mediated alkane conversion and application. The system comprises a two-step electrocatalytic reaction tank and a one-step thermocatalytic fixed bed reaction tank. The electro-catalytic reaction tank is composed of a zero-gap membrane electrode tank and an improved flow electrochemical tank, hydrogen and oxygen are generated by the electro-catalytic reaction tank through water electrolysis, and then the hydrogen and the oxygen are respectively introduced into the electro-catalytic reaction tank for oxidation reduction to prepare hydrogen peroxide; generated hydrogen peroxide is directly mixed with alkane gas through a tee joint and then enters a thermocatalytic fixed bed reactor, and a ketone product can be prepared. Compared with the prior art, the method has excellent ketone selectivity and production efficiency, and is a more efficient and stable reaction system compared with the currently reported electro-catalysis or thermocatalysis technology.

This invention relates to the field of biomedicine, specifically to a method for preparing and applying a biomimetic lipoprotein nanodisk to enhance the therapeutic effect on tumors. The method for preparing the biomimetic lipoprotein nanodisk provided by this invention includes the following steps: First, CCL5 peptide and DSPE-PEG2000-mal are dissolved in DMF and triethylamine, stirred at room temperature, and then the reaction solution is purified by dialysis and freeze-dried to obtain a white solid powder; then, methanol is placed in a flask, DPPC, DSPE-PEG2000-CCL5, and NG are dissolved in methanol, acetic acid is added, and the mixture is evaporated to dryness to form a thin film in the flask; then, the film is dispersed with ultrapure water, sonicated with a probe in an ice bath, and then ApoA1 peptide is added to the mixed solution, followed by thermal cycling to obtain C-LNG. This invention optimizes and modifies gemcitabine, developing a new drug NG, which significantly improves the therapeutic effect on tumors, and C-LNG has extremely high targeting and drug loading rates, further enhancing the drug's efficacy.

The invention relates to the technical field of screening and application of probiotics, in particular to bifidobacterium adolescentis HC2916 for inhibiting melanin synthesis as well as a microbial preparation and application of the bifidobacterium adolescentis HC2916, the bifidobacterium adolescentis HC2916 is preserved in China General Microbiological Culture Collection Center on May 16, 2023, and the preservation number is CGMCC No.27352. The invention further discloses a preparation method of the bifidobacterium adolescentis HC2916 for inhibiting melanin synthesis and a microbial preparation and application of the bifidobacterium adolescentis HC2916. The strain has excellent antioxidant capacity and can remove various free radicals and inhibit lipid peroxidation, fermentation supernate and lysate of the strain can remarkably lower protein and mRNA expression of a melanin production signal transduction core factor MITF, expression of downstream key enzymes TYRP1 and TYRP2 of the MITF can be inhibited, UVA-induced skin keratinocyte melanin content increase can be effectively inhibited, and the UVA-induced skin keratinocyte melanin content increase can be effectively inhibited, so that the UVA-induced skin keratinocyte melanin content increase can be inhibited, and the UVA-induced skin keratinocyte melanin content increase can be inhibited. Good application prospects are realized in the field of skin whitening.

The invention discloses a breeding method of spirulina species tolerant to high-concentration CO2, and belongs to the technical field of microorganisms. The method comprises the following steps: domesticating spirulina until the spirulina can stably grow in an environment of about 10% CO2 through continuous passage under the condition of gradually increasing the volume fraction of CO2, and adding erythritol and a rosemary extract into a culture solution in a compounding manner, so as to relieve acidification and oxidative stress caused by high-concentration CO2. The dry weight of the algal strain cultured for 7 days under the condition of 10% CO2 is obviously higher than that of the algal strain without addition of a protective agent and a conventional protection combination, the decrease amplitude of Fv / Fm is obviously reduced when compared with 72 hours, the cell death rate is obviously reduced, and synchronous improvement of biomass and photosynthetic efficiency is achieved.