4results about How to "Increased peroxidase activity" patented technology

The invention relates to the technical field of nano materials, in particular to a ferrocerium bimetal organic framework derivative as well as a preparation method and an application method thereof. The preparation method of the ferrocerium bimetal organic framework derivative provided by the embodiment of the invention comprises the following steps: S1, dissolving cerium salt and iron salt in a solvent to obtain a first solution; s2, dissolving an organic matter containing a benzene ring in a solvent to obtain a second solution; s3, mixing the first solution and the second solution, and adjusting to an alkaline environment to initiate a reaction to obtain a cerium-iron bimetal framework; and S4, carrying out heat treatment on the cerium-iron bimetal framework to obtain the cerium-iron oxide. The embodiment of the invention provides a ferrocerium bimetal organic framework derivative as well as a preparation method and an application method thereof, and can provide a material capable of increasing the catalytic efficiency and enhancing the coordination capability of ATP (adenosine triphosphate), and the material is used for treating melanoma.

The invention provides a polyvinylpyrrolidone modified cerium-based UIO-66 nano material as well as a preparation method and application thereof, and relates to the technical field of nano materials, catalysts and antitumor drugs. According to the method, cerium ions are used as metal nodes, terephthalic acid is used as an organic connector, a crystal framework with a UIO-66 characteristic topological structure is formed, then, polyvinylpyrrolidone is introduced into framework nano particles in situ through solvothermal reaction, and the nano particles are prepared. Therefore, the polyvinylpyrrolidone modified cerium-based UIO-66 nano material which is uniform in morphology and good in dispersity and has an efficient piezoelectric effect and peroxidase activity is obtained. The cerium-based UIO-66 nano-material disclosed by the invention can obviously enhance the catalytic performance under remote and accurate regulation and control of ultrasonic waves, and excites an additional biological catalytic function, so that the defect of single treatment is overcome through multi-mechanism synergy, and high-efficiency, low-toxicity and controllable treatment on tumors is realized.

The application belongs to the technical field of chemical analysis and detection, and relates to a synthesis method of an MXene-based nanoenzyme composite and application of the MXene-based nanoenzyme composite in detection of organophosphorus pesticides. V2CTx MXene and Fe-TCPP can be used to prepare V-TCPP(Fe) materials through a simple solvothermal method, and V-TCPP(Fe), AChE, 2-methylimidazole and zinc nitrate can be stirred at room temperature to prepare V-TCPP(Fe) / AChE@ZIF-8 materials. PVA, sucrose and V-TCPP(Fe) / AChE@ZIF-8 can be mixed and stirred to prepare a hydrogel patch. The material has a good colorimetric / chemiluminescence linear range response to OPs. The material is simple and convenient to prepare, and has the advantages of high sensitivity, a large linear range, good stability and repeatability in detection of OPs.

The invention discloses application of a blueberry VcDELLA-1 gene in improving high temperature stress resistance of plants, and belongs to the field of plant genetic engineering. Based on blueberry heat stress transcriptome data analysis, it is found that only VcDELLA-1 in a DELLA family contains a DLPYAD motif, the expression quantity of the gene in a salicylic acid treatment group is remarkably higher than that of a control group, and it is prompted that the gene is the blueberry heat-resistant key gene. Under high temperature and salicylic acid treatment, VcDELLA-1 expression in VcDELLA-1 transgenic arabidopsis thaliana and blueberry plants is remarkably up-regulated, and the curling and shrinking degree of leaves is relatively light; the activity of superoxide dismutase is remarkably reduced, the activity of peroxidase and the content of malondialdehyde and hydrogen peroxide are remarkably increased, and a large number of heat stress related genes are expressed. The VcDELLA-1 gene improves the high-temperature resistance of plants by regulating and controlling the expression of heat stress related genes, and provides important gene resources for cultivating new varieties of high-temperature-resistant plants.