50 results about "Biological inhibition" patented technology

An article to be inserted in a human or animal body cavity, use of the article and preparation thereof. The article has a biologically inhibiting arrangement of electrically connected electrode materials in direct contact with each other on one or more surfaces of the article The arrangement includes as electrode materials a metallic anode material and a cathode material, where the potential of the cathode material is higher than the potential of the anode material, The cathode material is an electrically conductive material selected among certain non-metallic materials. The arrangement provided on the article releases biological inhibiting ions of the metallic anode material or complexes of such ions when the biologically inhibiting arrangement is contacted with a body fluid. The article can be designed with a controlled release rate suitable for the purpose in question for example an initial high rate of ion release after insertion of a catheter to combat bacteria introduced during the insertion followed by a prolonged release at a lower rate to maintain a low level of bacteria.

Recombinant fission yeast cells and methods of using them are described, which provide for identification of chemical and biological inhibitors or activators of a target exogenous phosphodiesterase (PDE). The invention provides, in some aspects, compounds that inhibit cAMP PDE activity and compositions that include such compounds. The invention, in part, also includes methods of using cAMP PDE-inhibiting compounds in the treatment of cAMP PDE-associated diseases and / or disorders.

The invention relates to a catalysis wet-type oxidation treatment method for sulfur-containing wastewater, which is mainly used for solving the problems of biological inhibition, not high removal rate of COD (chemical oxygen demand) and complex technique for treating sulfur-containing wastewater. In the method, industrial wastewater of which the COD value is 2000mg / l to 200000mg / l and the sulfur content is less than 70g / l and gases containing elemental oxygen are taken as raw materials which are in contact with a catalyst under the conditions that the reaction temperature is 230 to 300 DEG C, the reaction pressure is 3 to 10MPa, the liquid space velocity is 0.5 to 2.5h<-1> and the volume ratio in a standard state of the gas and liquid materials is (70-300):1, and therefore, the removal rate of the COD is larger than 95% and sulfurs in the wastewater are all converted into sulfate ions, wherein the catalyst comprises at least one oxide carrier selected from TiO2, Al2O3, SiO2 or ZrO2 and at least one metal or oxide carried on the oxide carrier and selected from Pt, Pd, Ru, Ir or Rh in parts by weight. The problems are nicely solved with the technical scheme, and the catalysis wet-type oxidation treatment method for sulfur-containing wastewater can be used in the industrial treatment of sulfur-containing industrial wastewater.

The invention relates to a catalytic wet oxidation catalyst for wastewater and a preparation method thereof, which mainly solve the problems of biological inhibition, low COD removing rate and complex process during treatment of sulfur-containing wastewater or problems that other organic pollutants in the wastewater and secondary pollution cannot be handled during treatment of cyanide-containing wastewater. The catalytic wet oxidation catalyst for wastewater comprises the following components in parts by weight: 90-99.9 parts of at least one oxide carrier selected from TiO2, Al2O3, SiO2 or ZrO2, 0.1-10 parts of at least one metal or oxide selected from Pt, Pd, Ru, Ir or Rh carried thereon and 0.01-5 parts of at least one oxide selected from Bi, Ba, Mg, B, V, Mo or rare earth. By the technical scheme using the catalytic wet oxidation catalyst for wastewater, the invention solves the problem better and can be used in industrial treatment of industrial organic wastewater.

Disclosure is provided for imidazole derivative compounds useful to inhibit the formation of biofilms and / or inhibit microbial growth, compositions including these compounds, devices including these compounds, and methods of using the same.

The present invention relates to a method for making biological inhibition of sea water cooling system. It is characterized by that in the cooling system adopting sea water or fresh water of estuary as cooling water the non-oxidative biocide and oxidative biocide can be alternatively added. Besides, said invention also provides their concrete alternative addition mode.

The present invention relates to a system and method for the photomodulation of living tissue. When photomodulated, living tissue will exhibit bioactivation or bioinhibition according to the present invention and, when using the disclosed sources of narrowband multichromatic radiation can cause significant dermatologic advantages such as hair removal, hair growth stimulation, wrinkle reduction, acne reduction and scar removal, vitiligo, etc. The present invention has application to non-dermatological medical treatments including tumor growth inhibition, cell regeneration, the stimulation of tissue in organs, etc.

The invention discloses a novel biological inhibitor for inhibiting activity of sulfate reducing bacteria in an oil well and a use method thereof in the field of production of an oil field. The inhibitor comprises the following components in parts by weight: 100 parts of sodium nitrite, 5-10 parts of sodium nitrate, 0.1-0.5 parts of sodium molybdate and 0.1-0.5 parts of cupric nitrate. The use method comprises the following steps of: (1) determining the concentration contents of SO4<2-> and S<2-> in produced water of the oil field; (2) converting dosage of the inhibitor; (3) preparing an inhibitor mother liquid described in claim 1 according to the dosage of sodium nitrite; and (4) adding the inhibitor mother liquid obtained in the step (3) into the shaft through a sleeve in an adding mode by the sleeve of the oil field. The corrosion rate of the produced water is lowered by using the inhibitor, and the production cost is reduced. Growth of source denitrifying bacteria in the well is activated, so that fast grow of SRB (Sulfate Reducing Bacteria) is effectively inhibited. The inhibitor can be used for inhibiting the activity of sulfate reducing bacteria in the oil well.

The present invention relates to cinnamaldehyde derivatives inhibiting growth of tumor cell and regulating cell cycle, the method for preparation and the pharmaceutical composition thereof. The cinnamaldehyde derivatives of the present invention can be effectively used as a cell cycle regulator or a cancer cell growth inhibitor, since it has an ability to regulate cell cycle by holding the cells in G2 / M stage of the cell division and has activity to inhibit cancer cell growth.

The invention relates to application of a curcumin derivative Ca 37 in preparation of a drug for treating a prostate cancer disease, and relates to the field of biology and pharmacy. The object is to provide a use of the curcumin derivative in treatment of the prostate cancer disease. The application provided by the invention is mainly characterized in that the proliferation of prostate cancer cells PC(Prostate Cancer)-3 which are independent of male hormones is inhibited by the curcumin derivative, and the effect is obviously better than that of curcumin itself, the decrease of the capacity function of the PC-3 cells, i.e., oxygen glycolysis and oxidative phosphorylation, apoptosis starting and autophagy defects are induced, and the growth inhibition function mainly depends on the generation of reactive oxygen species.

The invention relates to the technical field of aquatic products cultivation and particularly discloses a cultivation technique for crayfish. The cultivation technique is characterized by comprising the following steps: selecting a cultivation pond; treating water quality; transplanting water plants; putting in shrimp larvae; feeding with baits; managing water quality. According to the cultivation method for crayfish provided by the invention, the animal baits and plant baits in different ratios are adopted for feeding for different growth periods of the crayfish; the baits are more targeted; the Chinese herbal medicinal ingredients are mixed and added in the baits; the components are more effectively combined with each other; the absorbing speed for the baits and the growth speed of the crayfish are effectively increased; the biological inhibitor prepared according to the method provided by the invention not only can be used for effectively killing fungus and microorganisms in water but also promoting the disease resistance of the crayfish.

The present invention provides compositions and methods for reducing microbial and nematodal contamination or infection in plants, animals, fabrics, and products therefrom. The present invention also provides compositions and methods for reducing human infections and the emergence of antimicrobial resistance. In particular, the invention provides magnetic nanoparticles comprising biocidal or biostatic enzymes in one component, substrates for the enzymes in a second component, and a biocidal chemical agent that works in combination or synergistically with the enzymes. The compositions are dormant and become active upon exposure to hydration, oxygen, or mixing.

The invention discloses a VOCs (volatile organic compounds) purification system for waste gas of petrochemical industry. The system comprises a waste heat exchanger, a gas overheat protection device, a hot gas mass flow meter, a hybrid gas flow regulation valve, a cloth bag type dust remover, a pulse ultraviolet activation-microorganism degradation reactor, a smoke-gas-water washing purification tower, and an induced draft fan. The system creatively utilizes the suitability and the bioactivity degradation function of a Verticillium lecanii KM9083 strain to high-concentration VOCs, VOCs elements in the waste gas are finally decomposed into H2O and CO2, and the biological degradation efficiency of the strain to the VOCs can meet purification treatment requirements of the industrial waste gas. Meanwhile, the system utilizes an ultraviolet radiation resistance function of a benzophenone-hexamethyl phosphorotriamides combination, and adds the medicament to the Verticillium lecanii KM9083 strain in advance, thereby effectively preventing a biological inhibition function of ultraviolet rays to the strain.

Recombinant fission yeast cells and methods of using them are described, which provide for identification of chemical and biological inhibitors or activators of a target exogenous phosphodiesterase (PDE). The invention provides, in some aspects, compounds that inhibit cAMP PDE activity and compositions that include such compounds. The invention, in part, also includes methods of using cAMP PDE-inhibiting compounds in the treatment of cAMP PDE-associated diseases and / or disorders.

Provided is a biological inhibition method of hydrogen sulfide gas in an oil gathering system. The biological inhibition method of hydrogen sulfide gas is further applied in a single well, an oil transfer station, and an oil conveying station in the oil gathering system. Each station is provided with corresponding different dosing methods and detection methods. The invention further provides a biological inhibition system of hydrogen sulfide gas in the oil gathering system. The biological inhibition system of hydrogen sulfide gas in the oil gathering system comprises measuring containers containing synchronous desulfurization and denitrification embedding balls, sodium nitrite, methyldiethanolamine (MDEA) desulfurizer, and NaOH solution, and a singlechip. Each outlet of the measuring containers is provided with a valve, the singlechip controls the starting time of corresponding magnetic valves according to control signals outputted by an arranged-in timer unit, drug delivery amount is controlled by time, and corresponding drug delivery combination is chosen through a pre-set program to realize automatic drug delivery. According to the biological inhibition method and the system of hydrogen sulfide gas in the oil gathering system, each link of hydrogen sulfide generated from sulfate reducting bacteria in the gathering system is controlled to improve working environment of a crude oil gathering system workplace, and the biological inhibition method and the system of hydrogen sulfide gas in the oil gathering system are of great social, environmental, and economic benefits.

Disclosure is provided for imidazole derivative compounds useful to inhibit the formation of biofilms and / or inhibit microbial growth, compositions including these compounds, devices including these compounds, and methods of using the same.

The present invention provides a method of treating cancer using benzoic acid derivatives, alone or in combination with standard treatments such as chemotherapy and radiotherapy. Also provided are methods of screening for benzoic derivatives based on their ability to inhibit the enzyme tyrosinase or to bind to and activate PXR / SXR xenobiotic receptors.

Provided is a preparation method of an electromagnetic-driven polyvinyl alcohol magnetic hydrogel antifouling coating layer including three components: a component A, a component B and a component C.The component A is obtained by taking polyvinyl alcohol resin as a base material and deionized water as a dispersion medium, adding magnetic powder, a thixotropic agent and a defoamer, dispersing thematerials through a sanding process and mixing evenly, wherein the fineness is less than 80 [mu]m. The component B is prepared by dispersing dialdehyde in deionized water to obtain an aldehyde solution with a certain concentration. The component C is prepared by dispersing proton acid in deionized water to prepare an acid solution with a certain concentration. An externally applied alternating magnetic field can make a micro-morphology dynamic change generated on the surface of the magnetic hydrogel. By simulating the dynamic epidermal characteristics of marine organisms, the adhesion of fouling organisms can be inhibited and an anti-fouling role is played. Experiments of biological inhibition of absorption and desorption of indoor navicula tenera show that the magnetic hydrogel coating layer has good absorption inhibition and desorption performance on the fouling organisms under the alternating magnetic field.

Disclosed herein is a topical composition that contains (a) a plant meristem conditioned nutrient medium derived from the plants of the genus Oryza; (b) a preservative present at an amount sufficient to provide sterilizing or biostatic efficacy with respect to component (a); and (c) a dermatologically acceptable vehicle. When topically applied to mammalian cells, the composition of the invention can influence the epigenetic methylation of the DNA such that the methylation state is modulated to have more characteristics and patterns of the epigenetic state of younger cells.

The invention discloses two-stage biological treatment equipment for high COD and high NH3-N coal chemical sewage. The equipment is characterized in that: it comprises a first-stage biological treatment device, a second-stage biological treatment device and a control device. The equipment employs a technology combining a first-stage biological treatment and a second-stage biological treatment, and makes use of the first-stage biological treatment device to degrade toxic, harmful and biologically inhibitory substances in inflow water in advance, thus reducing the load of following second-stage biological treatment of organic pollutants, and achieving a better sewage treatment effect. In addition, as the first-stage biological treatment device and the second-stage biological treatment device can realize independent operation and control, the effective operation of each biochemical treatment section is ensured. Thus, the treatment equipment can operate flexibly and stronger impact resistance.

The invention discloses a green biological inhibition fire preventing and extinguishing material which comprises, by weight, 60-100 parts of water, 8-20 parts of aloe extracts, 10-20 parts of basic reagents and 10-20 parts of prepared reagents. The basic reagents include acetone, potassium iodide, potassium bromide, potassium peroxodisulfate and N-isopropylacrylamide, and the prepared reagents include sodium bicarbonate, polydimethylsiloxane, anhydrous sodium sulfite and acrylic acid. A pH (potential of hydrogen) of the biological inhibition fire preventing and extinguishing material is 7-7.3.The invention further discloses a preparation method of the biological inhibition fire preventing and extinguishing material. The method includes the steps: uniformly mixing the aloe extracts and water; sequentially adding the basic reagents and the prepared reagents; adjusting pH and standing. Penetrability and diffusivity of the biological inhibition fire preventing and extinguishing material are improved, fire extinguishing performance is enhanced, and the material is green and environmentally friendly. According to the method, raw materials are uniformly mixed step by step to prepare thebiological inhibition fire preventing and extinguishing material, and the fire extinguishing performance of the material is further enhanced.

The invention discloses a method for converting toxic hexavalent chromium into trivalent chromium by organic matter, relates to a method for converting toxic hexavalent chromium into trivalent chromium, and aims to solve the problems of low removal rate of existing methods for removing toxic hexavalent chromium from wastewater, sludge or soil and secondary pollution caused by a large amount of sludge or sediment. The method comprises the following steps: adding the organic matter to the wastewater containing Cr<6+>, and controlling pH to be 4-8 for reaction for 30 -60 minutes; or, mixing the organic matter with soil containing Cr<6+> or sludge containing Cr<6+>, then adding domestic sludge, and controlling pH to be 4-8 for reaction for 60-120 minutes. Toxic Cr<6+> is rapidly converted intoCr<3+> with a biological inhibition method, the conversion process of Cr<6+> is safe and environmentally friendly, the effect is remarkable, conversion of valence states of heavy metal chromium is rapidly realized, secondary pollution is avoided, and the cost is low. The method is suitable for conversion of toxic hexavalent chromium into trivalent chromium.

The present invention encompasses compounds having general formula (I) able to inhibit the lactate production (lactic acid) involved in the angiogenesis of tumoral tissues, in the glycolytic metabolic process of tumoral cells, of immune system cells in asthmatic diseases, in vascular cells in the pulmonary hypertension, in the treatment of chronic back pain or hyperoxaluria, and in the process by which the parasites protozoan causing malaria obtain most of the necessary energy.

The invention discloses a method for controlling paddy field spirogyra by using a biological inhibitor. Straw vinegar and fresh plant fermentation liquor are used as spirogyra inhibitors, so that high-value utilization of straws can be realized, meanwhile, garbage classification and reduction can be promoted, and environment-friendly rice planting can further be promoted. The spirogyra inhibitor has the characteristics of being natural, environment-friendly, simple to produce and the like; and the inhibitor contains various substances such as acids, alcohols, phenols and enzymes as well as microorganisms, not only has the characteristic of inhibiting the growth of the spirogyra, but also has multiple effects of resisting diseases, expelling insects, promoting growth and purifying water.

An article to be inserted in a human or animal body cavity, use of the article and preparation thereof. The article has a biologically inhibiting arrangement of electrically connected electrode materials in direct contact with each other on one or more surfaces of the article. The arrangement includes as electrode materials a metallic anode material and a cathode material, where the potential of the cathode material is higher than the potential of the anode material. The cathode material is an electrically conductive material selected among certain non-metallic materials. The arrangement provided on the article releases biological inhibiting ions of the metallic anode material or complexes of such ions when the biologically inhibiting arrangement is contacted with a body fluid. The article can be designed with a controlled release rate suitable for the purpose in question for example an initial high rate of ion release after insertion of a catheter to combat bacteria introduced during the insertion followed by a prolonged release at a lower rate to maintain a low level of bacteria.

Disclosed is a composition comprising a derivative of NDGA and 7-hydroxystaurosporine. The composition can be in a unit dose form or kit. Also disclosed are methods for achieving cytotoxicity, particularly of rapidly dividing cells such as cancer, by administering a composition of the invention. In various embodiments of the invention subjects with cancer achieve prolonged survival and / or diminution in the size of their malignancies and cancer metastasis.

The invention provides a pharmaceutical wastewater reclaimed water recycling processing system and a method. The pharmaceutical wastewater reclaimed water recycling processing system comprises a comprehensive regulating tank, an environment-friendly EPT electrocatalytic oxidation device, a vertical flow sedimentation tank, a pretreatment pool, a MBR membrane pool, an active carbon filter, an ultraviolet disinfection device, a reclaimed water pool, and a frequency-variable pressure-constant water supply equipment which are communicated successively. The pharmaceutical wastewater reclaimed waterrecycling processing system can be used for grading and sectional processing of pollutant matrix in pharmaceutical wastewater. According to the method, firstly, pharmaceutical wastewater biological inhibition influence factors are subjected to pretreatment, the toxicity is controlled to be lower than a bio-chemical inhibition concentration, and wastewater biodegradability is increased; reasonablecombination of high grade oxidation technology, bio-chemical processing technology, and deep processing technology are combined reasonably, pharmaceutical wastewater resource recycling is realized, processing system simplification, equipment integration, high efficiency and energy-saving processing effect, and processing system intelligentizing are realized; the removing efficiency and the stability of the whole wastewater processing technology are increased obviously.