389 results about "Carcinogen" patented technology

The present invention provides an apparatus for the vaporization of materials that releases active constituents for inhalation without the creation of harmful byproducts such as carcinogens associated with combustion and inhalation of substances. The apparatus is designed to fit ergonomically within the user's hand. The apparatus uses the user's inhalation process for air flow.

The present invention provides an apparatus for the vaporization of materials that releases active constituents for inhalation without the creation of harmful byproducts such as carcinogens associated with combustion and inhalation of substances.

The invention relates to a piece of degradable food packaging paper and a preparation method of the degradable food packaging paper; the preparation method of the degradable food packaging paper comprises the following steps of preparing konjak sol, preparing slurry, padding, degassing membrane-making and drying, waxing and airing. The preparation method provided in the invention takes konjac glucomannan as main raw material; soy isolate protein and carrageenan are added as accessories; glycerol is used as a plasticizer; without being bleached, the added slurry does not contain carcinogens, such as dioxin, organohalogen compounds and the like; the fiber slurry is porous and has a thick wall, so as to improve air permeability and strength of products effectively; the degradable food packaging paper prepared by the processes, such as sol dissolving, mixing, swelling and smearing edible paraffin wax and the like has the characteristics of safety, no toxicity, environment-friendliness, etc., simultaneously, the mechanical strength is distinctly improved; various added raw materials are in food grade, so that osmosis phenomenon which may happen cannot pollute food; and the degradable food packaging paper can be used as internal package paper for food, such as ice cream, cake, fry, etc.

The present invention provides human involucrin (hINV) sequences having tissue specific and cell type specific promoter activity. The sequences provided herein direct expression to suprabasal cells of stratifying epithelia. The invention further provides methods for the production of transgenic animals which contain a hINV promoter sequence which directs the expression of human papillomavirus 16 oncogenes (or other oncogenes). These animals display cervical and epidermal hyperplasias as well as cancer of the trachea, esophagus, colon, epidermis, anus/rectum, lymph nodes, spleen and lung. The animals of the invention provide a useful model for screening potential anti-neoplastic compounds, carcinogens, and co-carcinogens for a number of cancers.

The present invention features a novel use of processed ingredients from the Indian mulberry plant. More specifically, the present invention features a novel use of processed Morinda citrifolia, namely Morinda citrifolia fruit juice, puree, or puree juice for treating breast cancer, and particularly for inhibiting and/or preventing the metastasis of carcinogenic cells within the mammary region of the breast, as well as destroying metastasized mammary or breast cancer cells. The present invention comprises the consumption of food products or medicinal products or compositions comprising processed Morinda citrifolia, in either puree or fruit juice form. The present invention also features a method of inhibiting carcinogen-mediated conversion of mammary cells and protecting DNA against carcinogen-mediated damage by administering a composition comprising water soluble Morinda citrifolia.

The present invention discloses a preparation method for pickles. The method comprises the following processing steps: raw material selecting-salting- sorting-washing-shaping-desalinating-dehydrating-spicing-weighting and sub-packing-sterilizing-packing and warehousing. The method provided in the invention for preparing pickles can prevent pickles from mildewing, rotting and producing carcinogens, can improve the taste of pickles, and the pickles produced according to the present method do not cause any adverse effects on human health.

The invention discloses a compound powdery deodorant bacterial poison removing agent and a preparation method thereof. The compound powdery deodorant bacterial poison eliminating agent contains the following components in parts by weight: 10-55 parts of sodium carbonate, 20-40 parts of copper sulfate, 10-20 parts of aluminum potassium sulfate, 10-20 parts of ferrous sulphate, 10-20 parts of calcium carbonate, 10-20 parts of malic acid, 10-20 parts of calcium oxide and 1-10 parts of polyacrylamide. The invention can remove heavy metal ions, radioactive substances, carcinogen, blue-green algae, SS, COD, BOD and polluted and harmful substances which are difficult to be treated by the traditional common sterilization treatment agent in a broad spectrum way at high efficiency and has the remarkable effects of decolorization, deodorization, dehydration, deoiling, sterilization and the like as well as the advantages of less consumption, rapid treatment, quick response, low operation cost and strong adaptability to high dirty degree on pollutants, wide pH value range and wide range of sewage temperature change.

The present invention relates to a special high performance environmental-protection type polyurethane waterproof coating material for railway roads and bridges. The polyurethane waterproof coating material is a double component polyurethane waterproof coating material comprising a component A and a component B, wherein the component A comprises liquefied diphenylmethane-diisocyanate, polyether glycol, polyether triol and the like, and the component B comprises a curing agent, a modified filler, a pigment, a liquid filler, a composite additive and the like. According to the present invention, the liquefied diphenylmethane-diisocyanate, the liquid curing agent and other novel raw materials are adopted so as to avoid introduction of harmful substances and potential carcinogen substances, such that production and use of polyurethane waterproof coating materials are safe and environmentally friendly; and due to introduction of the modified filler, the prepared polyurethane waterproof coating material has characteristics of short surface drying time, short actual drying time, excellent tensile strength, excellent elongation at break, and other comprehensive performances, and completely meets requirements in the passenger dedicated line bridge concrete deck waterproof layer provisional technical conditions.

The invention relates to the field of polymers, particularly to a preparation method for polymer microspheres having a mixed absorption mode. According to the present invention, a suspension polymerization method is adopted to obtain a porous polystyrene hydrophobic microsphere resin with a particle size of 100-500 mum, methylal and thionyl chloride are adopted as raw materials and are subjected to an indirect chloromethylation reaction in the presence of a catalyst to prepare a chloromethyl resin, different compounds are adopted to react with the active chlorine on the chloromethyl resin, and ion exchange groups with different types are introduced so as to obtain the polymer microspheres having the ion exchange group on the skeleton hydrophobic surface and having the mixed absorption mode; and the preparation method adopts the indirect chloromethylation reaction so as to avoid use of the carcinogen chloromethyl ether, easily achieve and provide the low production cost.

The present invention relates to the effect of naturally occurring compounds on tumor development. As an example of proof, we used low; non-toxic doses of three compound e.g. Calcium D-glucarate, a naturally occurring Ca⁺⁺ salt of D-glucaric acid; Nicotinamide (NA), a naturally occurring vitamin and butyric acid (BA), a naturally occurring saturated short chain fatty acid. 7,12 dimethylbenzanthracene (DMBA), which is a very potent skin carcinogen and is an environmental pollutant, was used for skin tumor development. Experiment was performed upto 30 weeks. All the above-mentioned compounds were used either alone or concomitantly any two or all the three. In the positive control group 100% tumorigenesis was attained in 28 weeks, use of single compound led to the inhibition of DMBA induced tumorigenesis between 33 to 47%, use of two compounds resulted in the 73 to 80% reduction in tumorigenesis but the concomitant use of three compounds resulted into 100% inhibition of tumor development at the end of 30 weeks. This led us to conclude that the concomitant use of Cag, NA and BA in combination of two is useful for preventing skin tumor develoment for a sort or long period of time. But the concomitant use of all the three compounds, as described, exhibited the perfect synergistic effect in preventing the tumor development completely. This strategy should be equally effective in the management of benign and possibly malignant tumor in any organ caused by any mean.

The invention relates to a home-use food processing device and a method for producing soybean milk. The home-use food processing device comprises a machine cover, a machine body, a food cup, a crushing motor, a crushing knife, an electrothermal tube, a circuit device and the like. The home-use food processing device is characterized in that the machine body comprises a water barrel, wherein the electrothermal tube is arranged in the water barrel; and when the device is used, the food cup is placed in the water barrel, and the electrothermal tube is isolated from the food cup by clear water. When heated, the electrothermal tube heats the clear water; then heat water heats the food cup and food materials in the food cup; and combined with food crushing, different processings can be carried out on different food materials. When the device is used to stew, steam or warm up the food by isolating water, water boiling temperature is the highest temperature, so as to ensure that nutrition loss is minimized, and burned pot and eschar are impossible to be produced, let alone stinks and carcinogen. The home-use food processing device can not only solve the problem of false boiling when the soybean milk is boiled, but also realize high efficiency and energy conservation. For example, the boiling of 1.2 liters of soybean milk consumes 0.2 kilowatt of electricity and takes 8 minutes.

The invention discloses a preparation method for a pecan shell smoke solution with high antibacterial and antioxidant activity, and belongs to the technical field of aquatic product processing. The preparation method comprises the following steps: using pecan shells as raw materials, adding the pecan shells and sucrose into a dry distillation device in proportion, performing dry distillation decomposition and smoke cooling to obtain a crude smoke solution, refining the crude smoke solution with ethyl acetate, and removing carcinogens with a macroporous resin to obtain the pecan shell smoke solution with high antibacterial and antioxidant activity. The pecan shell smoke solution prepared according to the method contains 18.1-20.5 mg/mL of polyphenols and 9.5-10.8 mg/mL of carbonyl compounds, and has a pH value of 2.3-2.6; 3,4-benzopyrene is not detected. The pecan shell smoke solution can be applied to aquatic products in two ways, namely, atomizing and soaking, has excellent antibacterial and antioxidant effects, and enables the aquatic products to have rich smoky flavor.

The invention discloses a preparation method of a compound 19-desmethyl-4-androstene-3,17 diketone, comprises the following step of by taking compounds of 5alpha-chloro-3beta-hydroxy-6beta and 19beta-epoxy-androstane-17-ketone as raw materials, and carrying out oxidation reaction on the compounds of 5alpha-chloro-3beta-hydroxy-6beta and 19beta-epoxy-androstane-17-ketone as well as an intermediate compound 19-hydroxy-4-androstene-3,17-diketone with N-halogenated amide oxidant in a mixed solution of an organic solvent and an alkaline buffer solution in the presence of a catalytic amount of 2,2,6,6-tetramethylpiperidine-N-oxide (TENPO) in the mild condition. In the two steps of oxidation reaction, the catalytic amount of 2,2,6,6-tetramethylpiperidine-N-oxide and the N-halogenated amide oxidant are both adopted to replace a mixed solution of chromium trioxide, sulfuric acid and water. In the oxidation method, without using the chromium trioxide, the use of carcinogenic substances are avoided being used, limitation by environmental protection is avoided and a great amount of wastes containing heavy metals in preparation are avoided being generated and accumulated, thereby no money and labor is consumed for removing the wastes.

The invention relates to a method for preparing ambrotone. The method includes steps of 1, synthesizing 3-methyl-3-pentene-2-ketone; 2, carrying out diene addition for preparing ambrotone intermediates; 3, carrying out cyclization reaction to prepare the ambrotone. Diene addition for preparing the ambrotone intermediates is carried out without catalysts by the aid of high-temperature gas-phase reaction. The method has the advantages that the ambrotone is prepared from raw materials beta-pinene, butanone and acetaldehyde, other organic solvents are omitted, high-pollution and high-carcinogenesis substances such as benzene and toluene are omitted, accordingly, the cost can be lowered, the quality of products can be effectively improved, the application range of the products can be effectively expanded, and Diels-Alder condensation reaction is carried out by the aid of the high-temperature gas-phase reaction; the Diels-Alder condensation reaction is carried out by the aid of the high-temperature gas-phase reaction or atomized small-molecule water drop and gas phases, catalysts such as Lewis acid or proton acid are omitted at reaction steps, accordingly, the production cost can be lowered, technological equipment can be simplified, post-reaction treatment working procedures can be shortened, and the purpose of zero sewage discharge can be truly achieved.

An animal model is provided which is genetically engineered to express human serum albumin, and such animals may be advantageously used in assessing drugs, vaccines or other therapeutic compounds that may be used in humans. In addition, an animal model is provided which does not manufacture its own albumin and which has been injected with human serum albumin. Through the use of these animal models, drugs and other chemicals can be more accurately assessed in physiological environments that reflect the conditions to be expected in humans, and such models will be useful in assessing new drugs and evaluating toxic substances for potential dangers as carcinogens, mutagens, etc. Other applications include evaluating immunological properties of various albumin-engineered proteins which might be administered to humans as therapeutics or vaccines, and research of disease states, such as genetic diseases, to provide further insight in treating these diseases.

The invention provides quaternary ammonium lateral groups-containing phenolphthalein type polyarylether and the method for preparing the same. The preparation method comprises the following steps of: dissolving a bisphenol monomer and a di-halogen monomer of tertiary amine lateral groups-containing phenolphthalein, which serve as raw materials, into an aprotic polar solvent to perform a reaction to obtain the tertiary amine lateral groups containing polyarylether; and after the reaction is ended, dissolving the obtained tertiary amine lateral groups-containing polyarylether in the aprotic polar solvent to perform a reaction with halogenated hydrocarbons. The preparation method can accurately control the positions and number of the quaternary ammonium functional groups, avoids the use of chloromethylation reagent(such as methylchloromethyl ether) which is highly poisonous and a strong carcinogen; and the obtained quaternary ammonium lateral groups containing phenolphthalein type polyarylether has good dissolvability and contributes to the further functionalized application; and the tertiary amine groups contained in the intermediate product of the tertiary amine lateral group-containing polyarylether easily make other similar reactions so as to derive other functional groups.

The invention discloses a preparation method and application of a low toxicity acidizing corrosion inhibitor. The preparation method mainly includes two steps: 1. synthesizing a Mannich base quaternary ammonium salt; and 2. diluting the Mannich base quaternary ammonium salt to 15-20% (mass percentage) with a solvent. The corrosion inhibitor disclosed in the invention is a typical adsorption type corrosion inhibitor, can rapidly form a compact and firm hydrophobic protective membrane on the surface of a P110 steel test piece, thus effectively preventing an acid solution from corroding P110 steel. The corrosion inhibitor prepared in the invention belongs to a mixed corrosion inhibit inhibitor. The inhibitor employs cinnamic aldehyde with the advantages of the green, low toxicity, easy degradation and the like to replace the cancerogenic substance formaldehyde, is not added with iodide, alkynol or other synergists polluting the environment, has the advantages of simple synthesis process, small dosage, low toxicity, etc., and is suitable to oil and gas well acidizing, acid fracturing stimulation and other operations.

The present invention relates to a coating layer structure for heat-cookers, and more particularly, to a coating layer structure for heat-cookers wherein said structure has been produced by forming an aluminum oxide (Al₂O₃) layer on the surface of an aluminum heat-cooker by anodic oxidation and then applying thereon either an anion- and far infrared ray-emitting, inorganic ceramic coating agent or a non-stick, inorganic ceramic coating agent, said both coating agents being non-toxic to human body, and whereby said structure, on heating, does not release any carcinogens and increases heat conductivity at the same time, and said structure also has excellent anti-corrosive and anti-abrasive properties.

The invention discloses a mixed type liquid cigarette and a manufacturing method and the application. The mixed type liquid cigarette is made of materials consisting of tobacco leaf and/or tobacco pole, angelica, radix codonopsitis, astragalus, steroid, schisandra, scutellaria barbata, rhizome imperatae, fritillaria thunbergii, cinnamon, costus root and jujube. When people have the mixted type liquid cigarette of the invention, the cigarette does not need to be burned and does not produce tar and other carcinogenic substances. The cigarette not only has the natural fragrance flavor but also excites nervus centralis, relieves organic fatigue and anxiety, improves the respiratory system situation( for example, relieving cough, eliminating phlegm and relieving asthma), strengthens the organic immunological competence, and has antineoplastic effects. Therefore, the mixed type liquid cigarette serves as health care cigarette or medical cigarette and is used for human body health care or treatment.