34results about How to "Carcinogenic" patented technology

The invention discloses a preparation method of styrene macroporous strong-alkaline anion exchange resin for removing nitrate in water. Styrene, divinyl benzene, benzoyl peroxide, liquid paraffin, polyvinyl alcohol, gelatin, methylene blue, dichloromethane, 1,4-bis(chloromethoxy)butane, anhydrous tin tetrachloride and triethylamine are used as main raw materials; the macroporous strong-alkaline anion exchange resin is prepared through suspension polymerization reaction, chloromethylation reaction and amination reaction. The preparation comprises the following steps: synthesis of styrene divinyl benzene cross-linked polymer by the suspension polymerization method, chloromethylation reaction of styrene divinyl benzene cross-linked polymer, and amination reaction of chloromethylated styrene divinyl benzene cross-linked polymer. The particle size of the prepared resin is 0.5-1.5mm; the resin has the advantages of uniform pore distribution, strong adsorbability against nitrate, high selectivity on nitrate and the like; the physicochemical properties of the resin are good. The resin can be applied to the nitrate removal treatment process of water, and has good development prospect and practical significance.

The invention relates to a compound alpha-ketoacid tablet free from talcum powder and a preparation method of the tablet. The tablet prepared by using the preparation method is good in compressibility, beautiful in appearance, high in disintegration speed, high in dissolution rate and high in long storage stability. According to the preparation method provided by the invention, a dry granulation method is used, all the ingredients are prevented from contacting water or other wetting agent, and therefore, the tablet can be stably stored for long time, and the content of effective ingredient is ensured. The content of the polyethylene glycol in the prescription is optimized, the talcum powder or the analogue with composition similar with that of the talcum powder are not contained in the prescription, no disintegrating agent needs to be added, the problems of clustering phenomenon and quite large viscidity in a wet granulation process in the traditional production are solved, the medication safety is ensured, and the product can be stably produced with quality and high safety.

The invention provides an application of an SNORD16 gene in preparation of colon cancer detection kits and the related kits, and belongs to the technical field of biology. In order to mine prognosticbiomarkers for identifying high-risk patients and explore a novel molecular mechanism of colon cancer pathogenesis, the invention provides the application of the SNORD16 gene in the preparation of thecolon cancer detection kits, wherein the nucleotide sequence of the SNORD16 gene is shown in SEQ ID No.1. The kits are used for colon cancer diagnosis and/or prognosis assessment; compared with normal tissue adjacent to cancers, the SNORD16 gene is highly expressed in colon cancer cells or tissue. The invention also provides the related detection kits. In-vitro functional experiments show that the SNORD16 can promote growth, proliferation, migration and invasion of the colon cancer cells by inhibiting apoptosis, and indicate that the SNORD16 has carcinogenic effects in colon cancer and can beused as the novel diagnostic and prognostic biomarker for the colon cancer.

The invention discloses a helicobacter pylori detection kit and a preparation method of the kit. The kit comprises a reaction solution and an indicator paper. The reaction solution includes the citricacid at a pH of 3.0-5.0, sodium citrate buffer, nickel chloride and urea. The indicator test paper can detect the change of pH in the range of pH 4.5 to 7.0. The kit of the invention can be used fordetecting the infection of helicobacter pylori in saliva. The reagent has the advantages of simple preparation, low cost, no harm, pain, toxic side effects and taboos to the human body. The method issimple and fast, and the kit has high sensitivity, thereby being suitable for popularization and application.

The invention relates to a skin-care compound and a preparation method and application thereof, and a skin-care product, and relates to the technical field of skin-care products. According to the technical scheme, the skin-care compound is (1E, 4E, 6E)-1,7-bis(4-hydroxyphenyl)-1,4,6-heptatriene-3-one, and the structural formula of skin-care compound is shown in the description. The skin-care compound is extracted out from pure natural plants containing (1E, 4E, 6E)-1,7-bis(4-hydroxyphenyl)-1,4,6-heptatriene-3-one. The skin-care product can be applied, as an irritant of human-dermal-fibroblastHDFa secreting collagen and a tyrosinase inhibitor, to the preparation of anti-aging and skin-whitening cosmetics.

The invention relates to a biological pesticide and a preparation method thereof. A raw material of the biological pesticide is an extract from mulberry leaf water, namely total alkaloids from folium mori. The method for preparing the biological pesticide comprises the steps of: cutting mulberry leaves into thin bar shapes with the width of about 2mm, adding water into the mulberry leaves in a solid-liquid mass ratio of 1: 10, performing ultrasonic treatment on the mixture for 1 hour, then boiling the mixture until the content of the mulberry leaves is about 1g/ml, and filtering the obtained solution to obtain a finished product. The invention provides a biological pesticide with no toxicity, no harm, simple preparation technology, and easy popularization and application, and the preparation method thereof.

The invention discloses an automatic clutch of an automotive vehicle provided with a manual gearbox. The automatic clutch is provided with a steel diaphragm group clutch unit for undertaking engine power, and a double-cone clutch unit for undertaking the power transferred from the steel membrane plate group clutch unit, wherein an outer piston is used for driving a driving plate group of the steel membrane plate group clutch unit to combine with a driven plate group; an inner piston is used for driving an auxiliary cone plate and a main plate of the double-cone clutch unit to combine with a taper sleeve; and a middle piston is used for supplying oil in order. The automatic clutch with the structure can completely substitute a dry plate friction clutch, and is configured with the manual gearbox to thoroughly remove the links which are most difficult to control and most unsafe and consume most oil, thereby making driving become simple, easy and safe, and simultaneously increasing less manufacturing cost.

The invention relates to an environment-friendly fabric core conveyor belt adhesive tape and a preparation method thereof. The formula comprises the following components in parts by weight: 50-70 parts of natural rubber, 30-50 parts of butadiene styrene rubber, 10-30 parts of environment-friendly reclaimed rubber, 25-75 parts of reinforcing filler, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 2-5 parts of an anti-aging agent, 1-5 parts of C5 resin, 5-20 parts of environment-friendly aromatic oil, 1-3 parts of modified RS resin, 2-6 parts of a rubber adhesive RA-50, 1.2-2.0 parts of sulfur, 1-1.2 parts of a vulcanization accelerator and 0.1-0.2 part of a scorch retarder CTP. The raw materials are subjected to plastication, first-stage mixing and second-stage mixing to prepare the environment-friendly fabric core conveyor belt adhesive tape. The environment-friendly raw materials are adopted, so that the pollution hidden danger caused to the environment in the production and use processes is greatly reduced, and the safety, the economical efficiency and the adaptability of the product are wider.

The invention belongs to the technical field of sausage preparation, in particular to a preparation method of sausage with a mango flavor. The method comprises the following steps: (1) preparation ofraw diced mangos; (2) preparation of raw meat; (3) mixing-kneading after batching: weighing the following raw materials according to a proportion: 70-90 parts of pork lean meat, 10-30 parts of pork shop fat meat, 1.50-1.60 parts of edible salt, 4.0-4.4 parts of white sugar, 5.2-5.6 parts of the diced mangos, 0.30-0.34 part of white wine, 0.03-0.04 part of nisin, 0.012-0.013 part of spices, 0.3-0.34 part of carrageenan, and 0.036-0.04 part of D-sodium isoascorbiate, and then batching the raw materials; (4) sausage filling; (5) drying; and the like. According to the sausage prepared by the method, the unique nutrient content of mangos is enriched by 3-6%; no B(a)P exists; the taste is unique; and the sausage is nutritious.

The invention discloses an environment-friendly release agent for aerated bricks and a preparation method of the environment-friendly release agent, and relates to the technical field of novel building materials. The release agent comprises the following components in percentage by mass: 25-50% of environment-friendly base oil, 0.5-4% of a compound emulsifier, 0.1-2% of a tackifying polymer, 1-2%of a functional additive and the balance of water. The preparation method comprises the following steps: (a) fully stirring the environment-friendly base oil and the compound emulsifier, and then adding a certain amount of water; and (b) adding the tackifying polymer when the emulsion becomes milk white, continuing to stir for 1-2 hours to form a stable milk white emulsion, and discharging the emulsion. On one hand, the pollution problem caused by waste engine oil adopted by a traditional release agent is solved, and on the other hand, a uniform and smooth surface can be formed for brickwork,and the material cost is saved.

The invention discloses a waterproof breathable biological soft shell plaster and a preparation method thereof. The basic structure of the plaster sequentially comprises release paper (6), a waterproof breathable film (5), an air suction layer (4), a base lining (3), a substrate (2) and release paper (1) from outside to inside. The release paper can be peeled off and is used as a plaster shell; the waterproof breathable film is a film made of high-molecular compounds of polyether sulfone and aryl polyether; the air suction layer is an activated carbon powder layer (7) added between the base lining and the waterproof breathable film; the base lining is a non-stick gauze layer; components of the matrix comprise traditional Chinese medicine powder and additives, and the additives comprise a film-forming agent, an antioxidant, a wetting agent, a bacteriostatic auxiliary agent, a light absorbing agent, a dispersing agent and the like. The waterproof breathable biological soft-shell plaster provided by the invention ensures the curative effect of traditional Chinese medicines, has good waterproof and breathable properties, and does not cause allergy and other damages to the skin.