48 results about "Superoxide ions" patented technology

The present invention provides a therapeutic composition comprising one or more polyphenols and one or more carotenoids selected from the group consisting of lutein, lycopene and beta-carotene. The invention also provides methods for inhibiting or reducing the production of superoxide ions, NO, TNF-alpha and/or PGE₂ in a mammalian subject comprising administering to said subject the aforementioned therapeutic composition.

A plasma is generated inside a barrier enclosure made specifically of N-Type semiconductive material, said plasma thus generating a thermal gradient across said barrier which drives electrons through said barrier via the thermoelectric power of said N-Type semiconductor, said electrons thus being liberated on the opposing side of said barrier where they interact with oxygen in the air to form the superoxide ion. O₂⁻, and a second electrode on said opposing being at a critical minimum negative bias potential to quench collateral production of positive ions and ensuring production only of negative, O₂⁻, ions.

The subject invention provides a potentially economically viable method for the preparation of reactive superoxide ion in deep eutectic solvents (DES). The superoxide ion can be used for many applications, e.g. the degradation of hazardous chemicals at ambient conditions or in the synthesis of some special chemicals, e.g. carboxylic acids, aldehydes, and ketones from the corresponding alcohols. The superoxide ion can be formed by either the electrochemical reduction of oxygen in DES or by dissolving Group 1 (alkali metals) or Group 2 (alkaline earth metals) superoxides, e.g. potassium superoxide, in DES, with/without chemicals used for the enhancement of the solubility of the metal superoxide in the DES, e.g. crown ethers.

The invention relates to a gel polymer electrolyte for a lithium-air battery and a preparation method thereof. The electrolyte is composed of perfluocarbon polymer electrolyte base materials with lithium ions and an electrolyte solution, wherein the perfluocarbon polymer electrolyte base materials account for 30-80% of the percentage mass content of the electrolyte; when the gel polymer electrolyte is prepared, the perfluocarbon polymer electrolyte base materials are placed in a lithium hydroxide solution to be subjected to lithiation treatment, washing is conducted, after drying is conducted, the treated perfluocarbon polymer electrolyte base materials are steeped in the electrolyte solution, full swelling is conducted, and then the gel polymer electrolyte for the lithium-air battery is prepared. Compared with the prior art, according to the gel polymer electrolyte for the lithium-air battery, prominent and excellent chemical stability can be achieved, the nucleophilic attack of superoxide ions in the lithium-air battery can be effectively resisted, and therefore prominent improvement effects on the battery capacity, the rate capacity and the cycling stability are achieved.

A light generating plasma is produced inside a partially transparent barrier enclosure made specifically of N-Type semiconductive material, said plasma thus generating a thermal gradient across said barrier which drives electrons through said barrier via the thermoelectric power of said N-Type semiconductor, said electrons thus being liberated on the opposing side of said barrier where they interact with oxygen in the air to form the superoxide ion, O₂⁻, and a second electrode on said opposing being at a critical minimum negative bias potential to quench collateral production of positive ions and ensuring production only of negative, O₂⁻, ions, and said light emanating from said plasma being useful visible light when it is transmitted through said barrier and into the region outside of said enclosure.

The invention provides an application of schisandrin b in preparing an NADPH oxidase inhibitor. The NADPH oxidase comprises various sub-types of oxidase. In in-vitro enzymatic experiments, the schisandrin b is capable of inhibiting super-oxygen ion generation reaction catalyzed by NADPH oxidase and reactive oxygen generation related to NADPH oxidase in cells, and does not have the function of scavenging free radicals, thus being an inhibitor of the NADPH oxidase. Furthermore, the NADPH oxidase is capable of changing the level of a plurality of signal transduction pathways and inhibiting generation of tumor metastasis, and can be applied to preparation of medicaments for treating tumor metastasis.

The invention relates to the technical field of devices for formaldehyde removal, and discloses a practical intelligent reminding device for formaldehyde removal. The device includes a casing, whereina mixed liquid is arranged inside a closed box, a transparent glass plate is connected to a position right above the closed box, and a photoresistor is arranged right above the transparent glass plate; and a sodium hydroxide solution is arranged on the left side of the inner part of a filter box, an activated carbon adsorption plate is connected to the interior of the filter box, and a quicklimelayer is connected to the interior of the filter box. After chlorine gas is introduced into a hydrogen peroxide solution, peroxide ions are oxidized into superoxide ions firstly, a further reaction isperformed on formaldehyde and the superoxide ions, and a reaction is performed between formaldehyde and hydroxide ions further; since the superoxide ions are extremely unstable, excess energy is released in the form of photons when excited-state oxygen atoms are turned into ground-state oxygen atoms, and the resistance value of the photoresistor can be changed through the brightness of red light,so that the content of indoor formaldehyde is predicted further, the transfer amount of chlorine gas is controlled accordingly, and waste of materials is avoided.

The invention discloses a fish meal waste gas purifying and decomposing device, which belongs to the field of fish meal environmental protection equipment. The device comprises a cover plate, strong oxidization nets, a groove body, ultraviolet lamps, a steel strip and soft magnetic strips, wherein the cover plate is arranged on the upper part of the groove body through a screw hole; the strong oxidization nets are arranged in the groove body at certain intervals; a plurality of ultraviolet lamps are arranged on both sides of the groove body; the steel strip is U-shaped; the surface of the steel strip is coated with zinc or chromium; the edges of the strong oxidization nets are provided with the soft magnetic strips, so that the strong oxidization nets are convenient to detach and clean; the groove body is arranged in a maze form; the strong oxidization nets are made of metal titanium wire nets, and are used for oxidizing titanium into titanium dioxide nanotube arrays in an electrolyte containing fluorine ions at a low-voltage; and the voltage of the low voltage is 20-60V. According to the fish meal waste gas purifying and decomposing device, superoxide ion radicals and hydroxyl radicals with extremely strong oxidizing actions generated by titanium dioxide under the irradiation of ultraviolet light can be used for decomposing organic matters with odor in fish meal waste gas into nontoxic carbon dioxide, water and nontoxic inorganic small molecular minerals, so that the device is simple and practical.

The subject invention provides a potentially economically viable process for the destruction of small to large quantities of sulfur and nitrogen mustards and lewisite, their homologous/analogues, and similar chemical warfare agents at ambient conditions without producing any toxic by-products. The process uses the superoxide ion that is either electrochemically generated by the reduction of oxygen in deep eutectic solvents or chemically by dissolving Group 1 (alkali metals) or Group 2 (alkaline earth metals) superoxides, e.g. potassium superoxide, in deep eutectic solvents.

The subject invention provides a potentially economically viable process for the destruction of small to large quantities of sulfur and nitrogen mustards and lewisite, their homologous/analogues, and similar chemical warfare agents at ambient conditions without producing any toxic by-products. The process uses the superoxide ion that is either electrochemically generated by the reduction of oxygen in ionic liquids or chemically by dissolving Group 1 (alkali metals) or Group 2 (alkaline earth metals) superoxides, e.g. potassium superoxide, in ionic liquids.

The invention discloses a self-cleaning water permeable brick with the adsorption and purifying function. After being carbonized, sawdust is ground at room temperature, a photocatalysis material nanometer titanium dioxide is adsorbed on the surface of a pore, hydroxyl free radicals, superoxide ion free radicals and H2O free radicals are generated during light irradiation and have high oxidization and degradation capacity, various organic matter is directly oxidized into CO2, H2O and other inorganic small molecules, automobile exhaust in atmosphere can be degraded when the sawdust is applied to the water permeable brick, and high adsorption performance is achieved. Modified sugar filter sludge serves as a pore forming agent, waste sand, heavy calcium and peat soil serve as aggregate, the water permeable brick prepared after high-temperature sintering is large in porosity, the adsorption purification performance is excellent, and the water permeable brick has the advantages of being high in strength, good in abrasion resistance, low in cost and environmentally friendly and can be widely applied to pavements, parks, squares, gardens and other places.

A plasma is generated inside a barrier enclosure made specifically of N-Type semiconductive material, said plasma thus generating a thermal gradient across said barrier which drives electrons through said barrier via the thermoelectric power of said N-Type semiconductor, said electrons thus being liberated on the opposing side of said barrier where they interact with oxygen in the air to form the superoxide ion,

The invention relates to a copper coordination polymer containing a nitrogen oxidation functional group as well as a preparation method and application of the copper coordination polymer. The polymerhas a chemical formula of [Cu(INO)(phen)Cl.2H2O]n, wherein INO is a nicotinic acid N-oxide ligand, and phen is chelated nitrogen-containing auxiliary ligand phenanthroline. The preparation method provided by the invention is simple, high-efficiency and friendly to the environment, and has low costs, and the product has a higher yield and higher purity; and as a SOD simulant substance, the polymerhas higher activity of catalyzing a disproportionation reaction of superoxide ions, and very good application prospects.

The invention relates to a promoter reporter gene for detecting superoxide radical ions in nodules and an application thereof. The promoter reporter gene is a base sequence shown by SEQ ID NO:1. A sodB promoter and a reporter gene uidA fusion plasmid are constructed for the first time, and can be directly transferred into the sinorhizobium meliloti strain to directly detect the distribution and the intensity condition of the superoxide ions in the nodule.

The invention discloses a prokaryotic expression vector of the rice metallothionein gene OsMT-1-2a and an application thereof. The vector contains the rice OsMT-1-2a protein gene, a T7 promoter and a terminator, a ribosome bind site (RBS) and a His label; and the upstream part of the OsMT-1-2a gene is the promoter, and the downstream part of the T7 promoter has an operation sub-sequence which can be induced by IPTG. The obtained in-vitro expression protein Pet-32A-OsMT-1-2a has relatively strong capacity of removing superoxide ions and hydroxyl radicals, and a feasible way is provided for the function and effect of clearing reactive oxygen of the OsMT-1-2a; and the activity level of the OsMT-1-2a protein in plant can be improved through the strategy of genetic engineering so as to improve the stress resistance of the plant.

By this prodn. technology, groundwater in deep well that depth is 100 metre is pumped to ground to be super microfiltered, then to be guided by stainless steel water pipe to pass through ceter of mutiple circular megnetic field that field strength is 70000-90000 gauss. Water processed by said procedure is heated to 92-94 deg.C by replenishing heat quantity, water vapour generated in sub-boiling is collected to be condensated returning to liquid which is guided to pass through electric field that electric current strength is 1-1.2 ampere. The steady-state superoxide ion water is produced by reprocessed of megnetic field, electric field, magnetic field, quality inspection, tining and sealing.

The invention belongs to the technical field of petroleum hydrocarbon contaminated soil remediation, and particularly relates to an application of a graphene-based nano composite material in remediation of petroleum hydrocarbon contaminated soil, wherein the application comprises the following steps: S1, preparing the graphene-based nano composite material: adding graphite powder and sodium nitrate into concentrated sulfuric acid, uniformly mixing, stirring for 10-15 minutes in an ice bath state, and keeping the temperature at 5 DEG C or below; and adding potassium permanganate into the solution. By arrangement of the graphene-based nano composite material, the graphene-based nano composite material contains titanium dioxide, radiation energy of ultraviolet light with the wavelength lower than 387 nm is absorbed through the titanium dioxide, and high-activity electrons and electron-holes are generated; meanwhile, dissolved oxygen, hydroxyl radicals, organic pollutants, water molecules and the like in soil can be adsorbed by utilizing the huge specific surface area of the material, so that a series of chemical reactions are carried out on the surface of the material, and finally, the organic pollutants are degraded to generate hydroxyl free radicals and superoxide ions.

The invention relates to a device and a method for detecting the concentration of trace superoxide ion free radicals in water by adopting a chemiluminescence reagent. The device comprises a to-be-detected water body container bottle, a chemiluminescence reagent container bottle, a peristaltic pump, a spiral luminescent tube, a photon counter, a computer and a waste liquid bottle. And the to-be-detected water body container bottle and the chemiluminescence reagent container bottle are respectively communicated with the liquid inlet end of the spiral luminescent tube through the peristaltic pump. The photon counter is arranged on one side of the spiral light-emitting tube and used for recording light signals in the spiral light-emitting tube. The photon counter is connected with the computer. The waste liquid bottle is connected with the liquid outlet end of the spiral luminous tube. And a chemiluminescence reagent solution is contained in the chemiluminescence reagent container bottle.According to the method, a chemiluminescence reagent reacts with a to-be-detected water body solution containing superoxide ions to generate an optical signal, and primary attenuation fitting is carried out according to the dynamic track of the optical signal to deduce the concentration of the superoxide ions in the to-be-detected water body.

The invention relates to the technical field of chemical engineering, and discloses spherical particles containing TiO2 purification factors. The spherical particles comprise the following raw materials in parts by weight: 100-200 parts of titanium sulfate, 50-100 parts of a reaction solvent, 10-20 parts of a surfactant, 20-30 parts of sulfuric acid and 40-60 parts of urea. The spherical particlescontaining the TiO2 purification factors are uniform in particle size distribution, are free of agglomeration or large particles, and have good dispersibility. When the TiO2-containing purification factors are illuminated in an application process, hydroxyl free radicals and superoxide ion free radicals generated on the surface have very strong oxidizing capacity. Reaction energy of the hydroxylfree radicals is 402.8 MJ/mol, and bonds such as C-C, C-H, C-N, C-O, N-H and the like in organic matter can be sufficiently destroyed, so that organic pollutants are completely oxidized into carbon dioxide and water under the action of hydroxyl free radicals and superoxide ion free radicals, main indoor pollutants such as hydrocarbons, benzene, formaldehyde, sulfides, ammonia and the like can be effectively removed, and the formaldehyde removal effect is excellent.