76results about How to "Strong activity" patented technology

The invention discloses a monatomic catalyst with the high catalytic activity and a preparation method and application thereof. The preparation method of the catalyst comprises the following steps that 1, Zn-containing dual-metal or multi-metal metal organic framework compound (MOF) is prepared through a solvent thermal method; 2, the MOF is coated with a polymer; 3, the coated material is subjected to high temperature treatment in inertia atmosphere, and a metal monatomic catalyst dispersed on a nitrogen-doping hollow carbon shell is obtained. The cobalt monatomic catalyst obtained through the preparation method has the excellent activity and selectivity in a hydrogenation reaction of nitrobenzene.

The invention relates to a preparation method of a botanical insecticide, which comprises the steps of (1) extracting alkaloids; (2) extracting plant essence; (3) adding each pure alkaloid extracted in the step (1) to an emulsifying agent and stirring, and uniformly mixing the various alkaloids added with the emulsifying agent; and (4) adding the plant essence obtained in the step (2) to the alkaloids obtained in the step (3), stirring and adding de-ionized water under a stirring condition. The insecticide disclosed by the invention has strong activities such as touch killing, stomach toxicity, repelling and avoiding on multiple pests, and has excellent control efficiency on the various pests; in addition, the ingredients of the insecticide come from a pure plant source, and therefore, the botanical insecticide is an excellent environment-friendly insecticide.

The invention discloses a beneficial microorganism antibiont-free feed and a preparation method of the beneficial microorganism antibiont-free feed. The preparation method comprises the following steps of: preparing a Lactobacillus acidophilus bacteria solution, a lactobacillus plantarum bacteria solution, a Saccharomyces cerevisiae bacteria solution and a Bacillus licheniformis bacteria solution respectively by carrying out secondary fermentation; then mixing the Bacillus licheniformis bacteria solution with cottonseed meal to carry out aerobic fermentation; mixing the fermented cottonseed meal, corn flour, beer slag and premixes uniformly, and adding a compound bacteria solution prepared from the Lactobacillus acidophilus bacteria solution, the lactobacillus plantarum bacteria solution and the Saccharomyces cerevisiae bacteria solution, mixing uniformly, carrying out constant temperature fermentation, thus obtaining the antibiont-free feed. The antibiont-free feed disclosed by the invention is not added with antibiotic medicines, is high in the content of the beneficial microorganism, has good attractant performance, palatability, and high nutrition digestion and absorption rate, increases the feed intake of animals, promotes the animal growth, enhances the level of animal health, and improves animal immune resistance to disease. The antibiont-free feed is applicable to breeding of antibiont-free livestock and poultry products, so that the breeding cost can be lowered, the economic efficiency is enhanced and the healthy development of aquaculture is promoted.

The invention relates to a processing method of an axial cone mirror. The processing method comprises the following steps of (1) performing conical surface shaping: performing conical surface shapingwith an optical processing center; (2) performing crude polishing: performing quick polishing with a polyurethane polishing disk, removing knife patterns and increasing roughness until the axial conemirror is polished to be bright; (3) performing precise polishing: performing fine polishing with atmosphere plasma polishing equipment, so that the roughness and surface shape precision is further improved; (4) performing conformal refinement: performing refinement with flexible small tools, so that the surface shape of the axial cone mirror finally achieves the requirements; and (5) performing detection: performing detection on the processed axial cone mirror. Through the adoption of the processing method disclosed by the invention, the problems that in the polishing process of the axial cone mirror, the processing efficiency is low, surface defects are generated and the surface shape precision of the edge region of the conical angles is difficult to control are solved.

The invention belongs to the technical field of induced differentiation of stem cells and particularly relates to an induction medium and an inducer for transformation of mesenchymal stem cells into testosterone secretory cells. The inducer for transformation of the mesenchymal stem cells into the testosterone secretory cells is composed of aspirin, dexamethasone, progesterone, resveratrol, insulin, parathyroid hormone, vitamin C and cysteine. Each 1000ml of the induction medium which takes a human mesenchymal stem cell serum-free medium as a matrix comprises 1-2mmol of aspirin, 0.1-0.3micromole of dexamethasone, 2-3micrograms of progesterone, 30-50micrograms of resveratrol, 10-30mg of insulin, 0.5-1.5nmol of parathyroid hormone, 2-4mmol of vitamin C, 0.4-0.8mmol of cysteine and the rest of the human mesenchymal stem cell serum-free medium. The induction medium and the inducer for transformation of the mesenchymal stem cells into the testosterone secretory cells have the advantages that the induced differentiation efficiency is high; cell viability is high after induction, induced transformation of the mesenchymal stem cells into the testosterone secretory cells can be realized, and high safety is achieved.

The method for preparing soybean peptide liquid food utilizes Bacillus.Subtilis Natto capable of producing Natto kinase as yeast, and uses soybean pea-starch, soybean cakes, or soybean milk as the culture medium through the steps of fermenting, separating, and filling findings.

The invention discloses a preparation method of a catalyst in the preparation of dimethyl ether by methyl alcohol, the preparation process is that: eudo-boehmite powder is roasted to be active alumina powder at the temperature of 500 DEG C; then, the active alumina powder is mixed with catalysis additives such as HZSM-5 molecular sieve, titanic sulfate, heteropolyacid and the like; chemical paste, citric acid and a peptizing agent are added into the mixture for uniform mixing and rolling compaction, so as to form dough material; the dough material is extruded into bands and molded in a band extrusion machine; and after the drying and roasting, the catalyst in the preparation of dimethyl ether by methyl alcohol is obtained. The catalyst prepared in the invention not only has good activation, selectivity and stability, but also has appropriate acidity and environmentally friendly, has no corrosion to equipment and can be used in the industrial production for preparing the dimethyl ether.

The invention discloses 4(3H)-quinazolinone-containing 1,4-pentadiene-3-ketoxime ether derivatives. The 4(3H)-quinazolinone-containing 1,4-pentadiene-3-ketoxime ether derivatives are characterized in that the general formula of the derivatives is described in the description, wherein R1 is phenyl, substituted phenyl or substituted aromatic heterocyclic group; R2 is phenyl, substituted phenyl or substituted aromatic heterocyclic group; R3 is one or more hydrogen atoms, methoxy group, nitro group, methyl group, trifluoromethyl group or halogen atoms contained in the 5, 6, 7 or 8 site of 4(3H)-quinazolinone. The compounds provided by the invention have higher treatment and protection functions for cucumber mosaic virus (CMV) and tobacco mosaic virus (TMV), and shows better plant virus resisting activity, thus being used for preparing anti-plant-virus pesticides.

The invention provides a preparation method and an application of a nanogold composite material immunosensor. The method comprises the following steps: dispersing aminated Fe3O4 nano magnetic beads into a Tris buffer solution and connecting with a cancer biomarker antibody (Ab1) as an easy-to-separate immunoprobe; dispersing a hollow polydopamine-nanogold material (PDA-Au) into the Tris buffer solution and connecting with a cancer biomarker antibody (Ab2) as an immune recognition material. Ab1 and Ab2 are specifically combined with a corresponding cancer marker antigen to form a sandwich immune system. The immune system is separated out through the magnetic property, then is added to a mixed water solution of p-nitrophenol and sodium borohydride, and is determined through an ultraviolet visible instrument. The linear range of immune detection of the nanogold composite material immunosensor prepared by the method is 0-100U/mL; the detection lower limit reaches 0.05U/mL; and the related coefficient reaches 0.998.

The invention provides a lindley eupatorium extract and a preparation method thereof. Compared with the prior art, the lindley eupatorium extract is higher in transfer rate of total flavone, and meanwhile a total flavone offer has good activity for hyperlipidemia and liver cirrhosis diseases.

The invention relates to a quality evaluation method of blood-fat-reducing traditional Chinese medicines on the basis of bio-titer, wherein the quality evaluation method employs the bio-titer as an evaluation index, and particularly, the bio-titer of reducing cholesterol and/or the bio-titer of reducing triglyceride is employed as the evaluation index. The bio-titer of reducing cholesterol includes the bio-titers of inhibiting absorption and synthesis of cholesterol or promoting metabolism or excretion of the cholesterol; and the bio-titer of reducing triglyceride includes the bio-titers of inhibiting absorption and synthesis of triglyceride or promoting excretion of the triglyceride. The quality evaluation method can be used as effective supplement of a traditional chemical detection method, can directly reacts clinical validity, and is a quality control and evaluation method which really satisfies traditional Chinese medicine theory, shows clinical application characters of traditional Chinese medicines and ensures safety and effect of the traditional Chinese medicines.

The invention discloses a catalyst for selective hydrogenation reaction of phthalate and a preparation method of the catalyst. The catalyst is prepared from a carrier, an active component and an auxiliary agent, wherein the carrier is a composite molecular sieve of an HY molecular sieve and a silicalite-1 molecular sieve; the active component is selected from at least one of ruthenium, platinum and palladium; the auxiliary agent comprises four types, wherein the first type auxiliary agent is selected from one of boron, phosphorus and selenium; the second type auxiliary agent is selected from one of sodium, magnesium and potassium; the third type auxiliary agent is selected from one of rubidium, strontium and yttrium; the fourth type auxiliary agent is selected from one of lanthanum and cerium. The preparation method of the catalyst comprises the following steps: taking the HY molecular sieve and the silicalite-1 molecular sieve and carrying out heat treatment to prepare the composite molecular sieve; after granulating and drying, adding graphite and carrying out tabletting and roasting to obtain a carrier; impregnating the carrier in soluble salt containing the active component andthe auxiliary agent; then taking out the carrier, drying and roasting to obtain the catalyst. The catalyst disclosed by the invention has relatively high activity and excellent stability; after the catalyst is operated for a long period, the loss rate of noble metal is low.

The invention discloses an isolated adipose protectant which comprises normal saline, DMEM solution, L-glutamine, penicillin and streptomycin according to the proportion of 500ml to 500ml to (146.1mg-584.4mg) to 125000U to 125000U. The invention further discloses a preparation method and application of the protectant. The protectant has effect of effectively reducing adipose tissue culture stem cell contamination rate. Growth rate of the stem cells during culture of the adipose tissue is higher than that of stem cells growing without protective liquid, and culture time of primary cells can be shortened, culture efficiency is improved, and cost is saved.

The invention relates to an oxygen-enriched controlled-release fertilizer which is characterized by consisting of a urea peroxide-beta-cyclodextrin complex with an effective quantity, urea peroxide (Perurea: CO(NH2)2.H2O2) and beta-cyclodextrin, wherein in the urea peroxide-beta-cyclodextrin complex, urea peroxide is used as an inner core, and beta-cyclodextrin is used as an outer layer. The oxygen-containing activity amount of the controlled-release fertilizer is high and can reach 17%-20%; and after being applied, the oxygen-enriched controlled-release fertilizer can continuously, moderately, stably and controllably release oxygen, and 100g of the fertilizer (the net content of Perurea) can continuously release oxygen for 300 hours. The controlled-release fertilizer has the advantages of slow, moderate and stable oxygen-enrichment mode, strong activity degree and strong antiseptic property, and is easy to eliminate the diseases in bonsai, thereby effectively improving the normal survive rate of a bonsai plant; and simultaneously, the oxygen-enriched controlled-release fertilizer has the effects of indoor oxygen enrichment, cleaning and disinfection; and compared with the relatedresearch results reported at present and novel products supplied by a market, the oxygen-enriched controlled-release fertilizer has incomparable superiority.

The invention relates to a high-activity and anti-carbon-deposition composite catalyst and a preparation method and application thereof in methane dry gas reforming, and belongs to the technical fieldof industrial catalysis. The composite catalyst is a metal/metal oxide and boron nitride composite structure, the metal component comprises nickel, and the metal oxide component is aluminum oxide ora mixture of aluminum oxide and magnesium oxide. The catalyst is obtained by driving and compounding nickel-containing layered double hydroxide nanosheets and boron nitride nanosheets through liquid-phase surface charges, roasting and reducing. The metal oxide realizes dispersion and anchoring of nickel, through the physical isolation effect of boron nitride, anchoring of nickel and metal oxide isachieved, nickel particle sintering is effectively inhibited and the catalyst shows excellent catalytic activity, sintering resistance and carbon deposition resistance in a methane dry gas reformingreaction.

The invention discloses a catalyst of succinic acid dicarboxylic ester. The catalyst consists of the following components in percentage by weight: 5 to 25 percent of nickel serving as an active ingredient, 0.5 to 8 percent of aid and the balance of carrier, wherein the carrier is alumina, silicon oxide, silicon-aluminum composite oxide or active carbon; and the aid is one of Na, K, Ca, Mg, Mn, Ba or Cu. The catalyst is prepared by an immersion method. The catalyst has the advantages of high heat stability, high activity and high selectivity.

The invention relates to a process for preparing the Gua-water in the Dabie mountain area, which comprises the steps of (1) selecting the mountain spring water in the Dabie mountain area as the raw water and filtering the raw water by a sand filter; (2) filtering the water treated in the step (1) by the activated carbon, wherein the particle size of the activated carbon is 0.42-0.65 mm during the filtering process; (3) filtering the water treated in the step (2) by a manganese sand filter; (4) sterilizing the water by medium-pressure ultraviolet rays; (5) treating the water by adopting the UH reverse osmosis technique; (6) sterilizing the water by means of ozone and fully mixing the ozone with the water during the sterilizing process, wherein the ozone content in the water reaches 0.12 mg/L; (7) completing the aseptic filling process of the treated water. According to the invention, the water prepared by the above process is free of pollution, pathogens, heavy metals and harmful chemical substances. Meanwhile, the water contains minerals and trace elements necessary for human bodies. Moreover, the water, free from degrading, is in the form of alkalescent small molecular group water and is strong in activity. In addition, the water is rich in beneficial minerals, such as strontium, zinc, selenium, metasilicic acid and the like.

The invention provides a recombinant baculovirus for expressing a dog serum albumin fused interferon gamma and application of the recombinant baculovirus. A dog serum albumin complete nucleotide sequence and a dog IFNgamma maturation protein nucleotide sequence are fused to construct a recombinant plasmid pF-CSA-IFNgamma for recombinant baculovirus screening; the recombinant baculovirus for stably expressing the dog serum albumin fused interferon gamma is screened. The recombinant baculovirus constructed through the method can stably secrete the novel dog gamma interferon with good expression activity and simple and convenient separation and purification, and lays a foundation for development of a novel dog long-acting interferon.

The invention discloses a propane dehydrogenation catalyst, and a preparation method and an application thereof. The propane dehydrogenation catalyst adopts theta-Al2O3 as a carrier, metal componentsare supported on the carrier, Pt and In in the metal components are necessary components, K and/or Ga are/is supported or not supported on the carrier as an assistant, Pt (by elemental Pt) accounts for 0.005-0.2% of the weight of the theta-Al2O3 carrier, In (by elemental In) accounts for 0.1-2.0% of the weight of the theta-Al2O3 carrier, K (by elemental K) accounts for 0-2.0% of the weight of thetheta-Al2O3 carrier, and Ga (by elemental Ga) accounts for 0-2.0% of the weight of the theta-Al2O3 carrier. The catalyst is prepared through a stepwise impregnation or co-impregnation technology. Thepropane dehydrogenation catalyst prepared through the method has a good propane dehydrogenation reaction performance; and compared with traditional Pt-based propane dehydrogenation catalysts, the catalyst in the invention has the advantages of great reduction of the load capacity of the precious metal Pt, and great reduction of the production cost.

The invention relates to the biotechnology field of biotechnolog, in particular to a CIK (cytokine induced killer cell) medium, which comprises a basic medium and an additive added into the basic medium. In terms of a final concentration, the additive comprises the following components: 20-30microg/mL polylysine, 5-15mg/mL BCG-polysaccharide, 0.03-0.04micromol/mL sodium selenite, 5-8microg/mL 4-hydroxyethylpiperazine ethane sulfonic acid, 2-4microg/L reduced glutathione, 8-12microg/mL adenosine deaminase, 2-3mg/mL IFN-gamma sustained release microsphere, 1.5-2mg/mL IL-2 sustained release microspheres, and 4-6mL/L autologous plasma. Through intercoordination and combined action of all the components, the CIK medium provided by the invention can provide sufficient nutrition and good environment needed by cell growth and proliferation, and can improve the activity and multiplication capacity of immune cells.

The invention relates to a fertilizer for indoor flowers and plants. The fertilizer is prepared from a urea peroxide-beta-cyclodextrin inclusion compound, urea peroxide (Perurea: CO(NH2)2.H2O2) and beta-cyclodextrin which are in effective quantities, wherein the urea peroxide-beta-cyclodextrin inclusion compound takes urea peroxide as a kernel and takes beta-cyclodextrin as an outer layer. According to the slow-release fertilizer disclosed by the invention, the oxygen content is high and can reach 17-20%; and after the fertilizer disclosed by the invention is used, the oxygen release is sustained, mild, stable and controllable and can sustain 300 hours per 100g of urea peroxide in net content. The slow-release fertilizer disclosed by the invention has the advantages that the oxygen release manner is slow, mild and stable, is stronger in activity and strong in disinfection and can be used for easily eliminating diseases and pests from potted landscapes, so that the normal survival ratio of potted plants is increased effectively; and meanwhile, the fertilizer disclosed by the invention has effects on increasing, disinfecting and cleaning indoor oxygen and has incomparable superiority compared with currently reported relevant research results and new products on the market.

The invention discloses an organic/inorganic water-soluble compound fertilizer and a preparation method thereof. The organic/inorganic water-soluble compound fertilizer is characterized by comprising 10% of monopotassium phosphate, 25% of urea, 17% of ammonium sulfate, 20% of potassium humate, 9% of potassium sulfate, 3% of chelated magnesium (EDTA-Mg), 2% of chelated zinc (EDTA-Zn), 3% of borax and 11% of water-soluble amino acid. The organic/inorganic compound fertilizer is dissolved in water and used as foliar fertilizer or water flush fertilizer.

The invention discloses leech freeze-dried powder injection solution for injection and a preparation method thereof. A leech medicinal material recorded in Chinese pharmacopeia is used as a raw material, and the preparation method comprises the following steps of: crushing the leech medicinal material; performing soaking extraction and seeping extraction by using 0 to 80 percent acetone/acetone aqueous solution or ethanol/ethanol aqueous solution in an amount which is 1 to 100 times the raw materials at the temperature of between 0 and 80 DEG C; concentrating extracting solution under reduced pressure; precipitating with 60 percent ethanol to remove impurities; concentrating mother liquor under reduced pressure; precipitating with 85 percent ethanol; precipitating and performing vacuum drying to obtain leech polypeptide powder; and compounding the leech polypeptide powder, a freeze-dried powder proppant and an osmotic pressure regulator to obtain the powder injection solution by a freezing-drying technology. The preparation is mainly used for preventing and treating cardiovascular and cerebrovascular diseases. Compared with hospital preparations of leech injection solution and market-sold formula solid preparations, the powder injection solution has the advantages of obvious activity, high stability, long validity and the like, and is convenient to store and transport.

The invention discloses a catalyst for a reaction of ethanol and acetaldehyde to synthesize 1,3-butadiene. The catalyst comprises a silica-containing carrier and a zirconium dioxide-containing activecomponent loaded on the carrier; and the active component is impregnated and loaded on the carrier through a precursor of the active component. The catalyst has excellent activity, selectivity and stability when used in the reaction of ethanol and acetaldehyde to synthesize 1,3-butadiene. The catalyst provided by the invention overcomes the defects of low efficiency, rapid inactivation and high production cost of existing catalysts, and has the advantages of simple preparation process, cheap and easily available raw materials, and realization of large-scale industrial production.

The invention discloses multifunctional fermentation equipment which is characterized in that a first fermentation tank is connected with a second fermentation tank; stirring rods are arranged in the fermentation tanks and are connected with a variable-speed motor which is connected with a motor; the motor is connected with an electrical appliance switch; and brackets and filter screens are arranged in the fermentation tanks. The structure of the first fermentation tank can be identical with that of the second fermentation tank; and the second fermentation tank can also be used for a fermenting and filtering and pH value adjusting tank. Multiple functions can be realized by one tank, and the multifunctional fermentation equipment is used for fermenting feed for feeding pigs, chickens, ducks, cattle, sheep and poultry. The multifunctional fermentation equipment has the advantages of simple structure, easiness in manufacture and convenience in mounting and using; the fermented mixed strain is high in activity, strong in vitality, low in cost and proper in the pH value; the feed prepared from fermented materials is popular among livestock and can be used for promoting the adjustment in the bodies of the livestock and enabling the livestock to quickly grow; and the multifunctional fermentation equipment can also be used for spraying pigsties and mews, deodorizing, eradicating odor and deinsectizing. The multifunctional fermentation equipment can be used for fermenting single strain or various mixed strains.

The invention discloses magnesium-based alloy. The magnesium-based alloy comprises the following main components by weight percent: 8.8-9.43% of Al, 0.5-0.8% of Zn, 0.05-0.1% of Mn, 0.03-0.06% of Si, 0.3-1.2% of Ce, 0.3-1.2% of La, 0.05-0.3% of Sr and the balance of magnesium and impurities caused in the preparation process. The magnesium-based alloy disclosed by the invention has the advantages that the defects of the traditional die-casting magnesium alloy can be overcome, the casting performance is good, the strength is high, the density is low, the corrosion resistance is excellent, the price is low, and the requirement for high texture of an ultra-thin-wall type 3C product can be met.

The invention relates to chemical structures of 11 phenolic acid compounds separated from clinical urinary system resistant active effective parts of Clerodend ranthus spicatus and having novel structures and an application thereof in preparation of medicaments for treating and/or preventing clinical urinary system drug-resistant bacteria. Eight new phenolic acid components are separated from the effective parts by using various separation techniques such as column chromatography. The chemical structures of the separated eight phenolic acid compounds with novel structures are identified by using modern wave spectra techniques (IR, UV, MS, 1D, 2D-NMR), and the compounds are respectively named as Clerodendranoic acid A(1), Clerodendranoic acid B(2), Clerodendranoic acid C(3), Clerodendranoic acid D(4), Clerodendranoic acid E(5), Clerodendranoic acid F(6), Clerodendranoic acid G(7), Clerodendranoic acid H(8), Clerodendranoic acid I(9), Clerodendranoic acid J(10) and Clerodendranoic acid(11). The 11 new compounds have the structural feature of caffeic acid or (and) rosmarinic acid polymers with novel structures.

The invention relates to a sterilization composition containing benthiavalicarb-isopropyl and azoxystrobin. The composition contains an effective component which is a binary combination of benthiavalicarb-isopropyl and azoxystrobin, and also contains auxiliary components, wherein a mass ratio of benthiavalicarb-isopropyl to azoxystrobin is 1-75:80-1, and the total mass of benthiavalicarb-isopropyl and azoxystrobin accounts for 1-80% of the total mass of the above whole preparation. The sterilization composition can be processed to prepare pesticides of dosage forms comprising a suspension, a wettable pulvis and a water dispersible granule. The sterilization composition has a good activity against almost all fungal diseases, like powdery mildew, rust diseases, glume blight, net blotch, downy mildew and rice blast, and has an obvious effect especially on cucumber downy mildew, powdery mildew, grape and tomato late blight, pepper phytophthora blight and the like.

A process for extracting the active scorpion protein liquid used to treat diseases without toxic by-effect includes disinfecting living scorpion, inserting the needle of injector into the protein bagin the scorpion body, pumping out the raw scorpion protein liquid, adding aseptic distilled water and aseptic glucose solution, and separating.

The high temperature luminous glazing consists of SrAl2O4EuDy 50-68 wt%, SiO2 25-40 wt%, Al2O3 4-6 wt%, CaO 1.5-3.0 wt%, MgO 0.5-1.0 wt% and Fe2O3 0.1-0.8 wt%, and is prepared through mixing, grinding, high temperature baking, crushing and other steps. It may be used in producing luminous glazed tile. It contains no any matter harmful to human body, produces no any harmful matter during use and has no harm to human body and environment. The luminous glazed tile has short light absorbing time, long afterglow time and high adaptability to weather and environment.