330 results about "Quinone" patented technology

The invention discloses a moisturizer prepared from a lysate extract produced by fermentation of bacillus subtilis. The hydroxydecyl ubiquinone is identified in Y-3FLE, and the yield of the hydroxydecyl ubiquinone is 0.45 mu g / g after the hydroxydecyl ubiquinone is cultured for 4 days, so that the quinone substances are identified in the Halophilic bacteria in the Yuncheng Salt Lake for the first time. The Y-3FLE is prepared by adopting absolute ethyl alcohol as a solvent, the oxidation resistance of the Y-3FLE is investigated through an in-vitro experiment, and a result shows that the Y-3FLE is relatively high in reducing capacity and relatively high in oxidation resistance. A human body closed patch test result shows that the Y-3FLE has no obvious irritation to human skin. The method is applied to the moisturizer, and human body efficacy evaluation is carried out through a multi-probe skin tester. Results show that the moisturizer added with 1% of Y-3FLE has multiple remarkable effects of moisturizing, repairing, nourishing and the like.

The invention relates to the field of polyimide materials, in particular to a positive photosensitive polyimide photoresist, a polyimide film and application of the positive photosensitive polyimide photoresist and the polyimide film. The positive photosensitive polyimide photoresist with excellent performance can be prepared by taking novel water-soluble polyamic acid ester with good dielectric property, low water absorption, heat resistance and the like as film-forming resin and combining the film-forming resin with the quinonediazide compound photosensitive component, the silane coupling agent and the organic solvent; the main film-forming component polyamic acid ester is a corresponding water-soluble polyimide precursor synthesized by using a series of simple and easily available polymeric monomers, and the realization of the water solubility is not limited to specific groups such as hydroxyl, carboxyl and the like in molecules. The photoresist has the advantages of high light sensitivity, high resolution, good thermal stability and chemical resistance, good heat and humidity resistance, good adhesion to various substrates and the like, an alkaline aqueous solution can be used as a developing solution, the loss of a film in a non-exposure area in the developing process is low due to low water absorption of the alkaline aqueous solution, and the developing time is short.

The invention belongs to the field of water treatment, and particularly relates to a graphene-based quinone mediator membrane as well as a preparation method and application thereof. The graphene-based quinone mediator membrane comprises a membrane matrix, and graphene, amino imidazopyridine and humus which are dispersed in the membrane matrix, the membrane substrate is made of polyvinylidene fluoride / butadiene, the polyvinylidene fluoride / butadiene is a random copolymer of polyvinylidene fluoride and butadiene, and an anthraquinone modification unit is bonded on a butadiene structural unit of the random copolymer. The graphene-based quinone mediator membrane provided by the invention has very high initial denitrification rate and over-time denitrification rate.

The invention discloses a quinonyl conjugated organic polymer photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of preparation of photocatalyst materials. The quinonyl conjugated organic polymer photocatalyst disclosed by the invention is formed by imine bond connection formed by a phenanthrenequinone group-containing aldehyde monomer and an amine monomer through a Schiff base condensation reaction, and the photocatalytic efficiency is improved by constructing an electron donor block and an electron acceptor block to initiate a push-pull electron effect in a material. According to the photocatalyst, pure water and air are subjected to photocatalysis under the condition that a sacrificial agent is not needed, and hydrogen peroxide can be efficiently generated.

According to the cell fixing liquid, phenol oxidase is used for catalyzing phenol to be oxidized into a quinone structure, the quinone structure reacts with protein amido to form light covalent immobilization, cell immobilization is achieved, a stable hydration environment and membrane protection are provided through the ionic liquid solvent choline dihydrogen phosphate, a phosphate-free buffer system is provided, and cell immobilization is achieved. Therefore, a novel cell fixing liquid is obtained, the cell structure integrity required by cell imaging analysis is effectively reserved, meanwhile, cell staining fluorescence signal interference is avoided, and therefore the accuracy of cell counting and cell imaging analysis is ensured.

The invention relates to the technical field of organic photoelectric materials, and particularly discloses a non-condensed ring small molecule acceptor material based on a quinonoid structure as well as a preparation method and application of the non-condensed ring small molecule acceptor material. According to the invention, easily available 1, 4-diacetyl piperazine-2, 5-diketone is used as a center, an alkyl chain and Ar are used for modification, EG is used as an end group, the non-condensed ring A-D-A '-D-A type structure acceptor material based on a quinone structure is constructed, and the general formula is shown in the specification. Wherein the PCE of the acceptor material which is modified by bithiophene and takes 2-(3-ethyl-4-oxothiazolidine-2-subunit) malononitrile as a terminal group reaches 15%. The non-condensed ring small molecule acceptor material based on the quinonoid structure is simple in synthesis process, and an effective strategy is provided for solving the problem of the overall performance of an organic solar cell.

The present invention discloses an organic electron acceptor containing a carbazole side chain and its application in solar cells. The organic electron acceptor containing a carbazole side chain has a structure shown in the following formula: #imgabs0# wherein R1 and R2 are independently a linear or branched alkyl group containing 1-18 carbon atoms, and A is an electron-withdrawing functional group. The present invention uses a non-fully fused ring structure based on trithiophene as the central conjugated skeleton of the organic electron acceptor, introduces a carbazole group as a side chain, prevents excessive elevation of the molecular HOMO energy level, and inhibits the internal rotation between the trithiophene rings connected by single bonds through its rigid large steric effect, thereby ensuring the planarity of the acceptor molecule, regulating the stacking between molecules, and simultaneously inhibiting the aromatic amine group from inducing the molecular skeleton to form a quinone structure, thereby improving the molecule's resistance to photooxidation.

The invention belongs to the field of microbial fermentation, and particularly discloses a method for fermenting astragalus membranaceus by lactobacillus plantarum. The method comprises the following steps: S1, crushing and sterilizing astragalus membranaceus; s2, inoculating lactobacillus plantarum LP-301; and S3, carrying out fermentation culture. After astragalus membranaceus is fermented by the lactobacillus plantarum LP-301, the contents of substances such as flavonoids, quinones and terpenes in a fermentation product are remarkably increased, so that the lactobacillus plantarum LP-301 can be used for preparing antioxidant products or anti-inflammatory products and has a relatively high application value.

The invention provides a diaphragm and a secondary battery, and belongs to the technical field of secondary batteries, and the diaphragm comprises a base membrane and a coating. Wherein the coating is arranged on one surface, facing the positive pole piece, of the base film, and the coating comprises an electroactive material and a binder; the electroactive material comprises at least one of a quinone derivative, a phenazine derivative, an imide derivative and a phenothiazine derivative. The electroactive material in the diaphragm coating can be dissolved in the electrolyte after the environment temperature reaches the thermal safety critical temperature, and reacts with the positive and negative active materials, so that the charge state of the battery is quickly reduced, and the thermal runaway of the battery is inhibited or even avoided.

The invention relates to the technical field of detection, and discloses a detection method and application of p-phenylenediamine antioxidants and quinone derivatives thereof, and the method comprises the following steps: taking a blood sample or a tissue sample, placing in a centrifuge tube, adding a recovery rate indicator solution and a glutathione solution, adding an extraction solvent, extracting twice, and combining the two solutions; centrifuging for 4-6 minutes at the speed of 3000-4500 rpm after each extraction, and combining the two extracts to obtain an extract to be detected; concentrating the to-be-detected extracting solution to be dry under soft nitrogen to obtain a to-be-detected concentrated dry substance; purifying with / without an HLB column; further concentrating the eluent, adding acetonitrile for redissolving, passing through an organic filter membrane, putting into a small sample injection bottle, and concentrating again; adding an internal standard solution to a constant volume to obtain a to-be-detected sample solution; and finally, detecting the sample solution to be detected by using an ultra-high performance liquid chromatography system and a mass spectrometer. According to the invention, the blank of no corresponding detection method for various PPDs and PPD-Qs in human blood and tissues is filled up.

The embodiment of the invention relates to an off-grid comprehensive energy supply system taking ammonia as an energy carrier. The off-grid comprehensive energy supply system comprises a power generation system and an ammonia synthesis system, wherein the power generation system comprises a main power generation module and a secondary power generation module, the main power generation module at least comprises a wind power generation module and a photovoltaic power generation module, the secondary power generation module at least comprises a nuclear energy power generation module and a biomass power generation module, and the power generation system is used for providing electric energy for the ammonia synthesis system; the ammonia synthesis system at least comprises one of the following devices: an electrochemical ammonia synthesis device and a Harberg method ammonia synthesis device, and the electrochemical ammonia synthesis device is a device which utilizes hydrogen and nitrogen as raw materials and utilizes lithium and quinone organic matters as electron transfer media to realize electrochemical synthesis reaction of ammonia; stable electric energy and heat energy supply is realized by integrating wind, light, core and biomass power generation processes, and is used as an energy source for ammonia preparation, and the prepared ammonia is easy to liquefy, convenient to transport and wide in application.

The application discloses an automatic control method for oxidation flocculation parameters in mancozeb wastewater treatment, and belongs to the technical field of industrial wastewater treatment and automatic control. In view of the problem that the existing process relies on manual experience and the oxidation and flocculation stages are improperly connected, the multifunctional modified material containing dithiocarbamate salt groups, quinone groups and pre-complexed manganese and zinc ions is prepared first; the material and hydrogen peroxide are synchronously added in the acid oxidation stage, and the control system monitors the redox potential change rate in real time; when the redox potential reaches the preset threshold value and the characteristic change point with the first derivative of zero or the change from positive to negative appears and is maintained for the preset maintenance time, the system is automatically adjusted to be alkaline, the modified material triggers the net capture and chelation crosslinking reaction, and finally solid-liquid separation is carried out; the polymer skeleton is protected from indiscriminate attack of free radicals, the problem of drug antagonism is overcome, and the stable and up-to-standard effluent quality is realized.

Quinones for use in therapeutic recovery, normalization and / or improvement of ATP in mitochondrial deficient cells, such as red blood cells, are disclosed. Particular examples are use in the treatment of erythrocystic diseases, especially in the treatment of erythrocyte metabolic defects, such as erythrocyte glycolysis defects. This treatment increases ATP in non-mitochondrial cells. Thus, the present invention relates to quinones for use in the treatment of diseases or conditions associated with or caused by a glycolytic deficiency in red blood cells.

The invention relates to a process for the production of an organic layer comprising regions with different electronic properties. The process is based on the use of dihydroanthracene, dihydrobenzene, benzol or fluorene precursors functionalised with at least one substituted propargyl alcohol. By subjecting these precursors to a reduction / re-aromatisation reaction and / or to a retro-Favorskii reaction one obtains small organic molecules or polymers having different electronic properties, due to the specific chemical composition generated by the different chemical reactions in which the precursors are involved. Therefore, starting from the same precursor and subjecting it alternatively to the two specified reactions, one obtains products with different electronic properties. i.e. molecules characterised by high energy levels of the highest occupied molecular orbital (HOMO), which have at least one aromatic ring substituted with at least one ethynyl group, and molecules characterised by lower energy levels of the lowest unoccupied molecular orbital (LUMO), which have at least one carbonyl functionality, preferably at least one quinone ring or at least one phenyl with at least one carbonyl functionality. The reactions are carried out in such a way that the final products are incorporated into a single organic layer.

The invention relates to the technical field of solid waste resource utilization and building materials, in particular to waste glass fiber reinforced plastic modified concrete and a preparation method thereof. The waste glass fiber reinforced plastic powder is directly added into a concrete material system, microcracks are easily caused, and the overall mechanical property of the concrete is remarkably reduced. In order to solve the technical problems, the waste glass fiber reinforced plastic modified concrete is provided, a PTA coating layer rich in high-activity quinonyl is successfully constructed on the surface of glass fiber reinforced plastic powder through alkaline oxidation auto-polymerization of tannic acid, meanwhile, amino at the tail end of m-KH550 reacts with quinonyl on the surface of GF-coated PTA through Schiff base reaction, a firm imine covalent bond is formed, and therefore the waste glass fiber reinforced plastic modified concrete is obtained. Covalent crosslinking is formed between the glass fiber reinforced plastic powder and the active metakaolin. By introducing the waste glass fiber reinforced plastic powder into a concrete system, the overall mechanical property of the concrete can be remarkably improved.

The invention belongs to the technical field of melamine resin preparation, and provides yellowing-resistant antioxidant melamine resin and a preparation method thereof. The preparation method comprises the following steps: firstly, by taking melamine, formaldehyde and a modifying reagent as raw materials, preparing a melamine prepolymer by adjusting reaction conditions; secondly, a quinone-phenol hybrid antioxidant is designed and prepared, and through introduction of a hybrid molecular structure, the quinone-phenol hybrid antioxidant has excellent free radical capture ability and oxidation inhibition effect; then, a multifunctional light stabilizer containing hindered amine, phosphine and triazine groups is synthesized, and the light stability and weather resistance of the material are remarkably improved by utilizing an intermolecular synergistic effect; and finally, uniformly dispersing and curing the melamine prepolymer, an antioxidant, a light stabilizer and other auxiliaries, and carrying out multi-step temperature regulation and curing treatment to prepare the melamine resin material with excellent performance.

The present invention relates to the technical field of extracting active ingredients from medicinal plants. Specifically, a method for separating and extracting tripterygium wilfordii quinone A from the root of the Chinese herb "Torreya grandis" is disclosed. The method uses the root of the Chinese herb "Torreya grandis" as the raw material and obtains tripterygium wilfordii quinone A monomer through pulverization, reflux extraction, extraction, reverse-phase medium-pressure C18 column chromatography, and reverse-phase high-pressure C18 column chromatography. The method is simple, rapid, and has high socioeconomic value. The obtained tripterygium wilfordii quinone A has a high purity (99.72%), laying the foundation for subsequent research on its pharmacological activity and the development of new immunotherapy drugs.

The bioplastic additives and antimicrobial plastics include polyphenols and organic polymers. The polyphenol can be a phenol, a polyphenol, a bioflavonoid, a flavonoid, a tannin, a coumarin, a lagman, a quinone, a stilbene, or a qurcuminoidenin. The organic polymer may be chitosan, chitin, cellulose, and keratin. In an advantageous form, the polyphenol is hesperidin, and the organic biopolymer is chitosan.

The present invention discloses polycyclic condensed-ring conjugated macromolecules based on quinone-type end groups, intermediates thereof, and methods for preparing and applying the same. The polycyclic condensed-ring conjugated macromolecules based on quinone-type end groups of the present invention are compounds represented by the following formula (1). The polycyclic condensed-ring conjugated macromolecules based on quinone-type end groups provided by the present invention have strong near-infrared light absorption and a suitable energy level structure, making them suitable for use as light detection materials or photovoltaic materials in the preparation of light detectors or solar cells. #imgabs0#

The application prepares an NP co-doped graphite nanosheet electrocatalyst, and has the advantages of simple and efficient preparation method, easy operation, low cost and practical application significance. The application takes cheap graphite powder as raw material, takes melamine and sodium hypophosphite as nitrogen source and phosphorus source respectively, and prepares the NP co-doped graphite nanosheet in a tube furnace through a high-temperature gas phase method. The NP co-doped graphite nanosheet is activated by electrochemistry to generate adjacent quinone structures with basic OER activity and further oxidize P-containing functional groups to obtain more phosphoric acid functional groups with HER activity, and the NP co-doped graphite nanosheet exhibits excellent electrocatalytic performance. The overpotential of the basic OER is only 314 mV, and the overpotential of the acidic HER is only-69.4 mV.

The invention discloses a high-stability pyrene tetraketone quinone polymer negative electrode material as well as a preparation method and application thereof. The negative electrode material is prepared by taking pyrene-4, 5, 9, 10-tetraone and an aminoquinone compound as reaction monomers through condensation reaction in a solvent medium, and a stable polymer structure with an expanded pi conjugated skeleton and rich proton storage active sites can be formed; the material effectively improves proton storage capacity, charge transfer dynamic performance and structural stability in a long-term cycle process, shows outstanding electrochemical performance after being assembled into an organic water-based proton battery, effectively solves the defects that a traditional organic electrode material is easy to dissolve in a water-based system, limited in specific capacity and short in cycle life, and has a wide application prospect. The method has a good application prospect in the field of energy conversion such as large-scale electrochemical energy storage.

The invention discloses an antibacterial composite coated fabric suitable for a physiological period, a swimsuit and a preparation process, and belongs to the field of textile fabrics, a C = N Schiff base covalent bond is formed through a coating-fiber interface, o-quinone generated by oxidation of tannic acid and cotton hydroxyl / chitosan amino are subjected to a Schiff base reaction to generate irreversible C = N crosslinking, and through hydrolytic condensation of KH-550, the antibacterial composite coated fabric suitable for the physiological period, the swimsuit suitable for the physiological period and the preparation process of the swimsuit suitable for the physiological period are obtained. Silanol and cellulose hydroxyl are dehydrated to form hydrolysis-resistant ether bonds, so that a water molecule insertion path of a coating-fiber interface is blocked, and high hydrophobicity is provided; the prepared antibacterial composite coating fabric has the advantages of super-hydrophobicity, antibiosis, self-repairing and one-way moisture conduction, and is suitable for the fields of female bathing suit cushion layers, medical nursing clothes, protective clothing, washable medical clothing and the like.

The application discloses application of pyrroloquinoline quinone (PQQ) or a derivative thereof in preparation of a product for relieving or preventing blue-green algae toxin poisoning of yellow catfish, and belongs to the technical field of aquatic animal feed. The PQQ or the derivative thereof can be used as an aquatic feed additive or a medicine, and is added in an amount of 3-6 mg / kg of feed to feed yellow catfish, so as to effectively relieve pathological damage of the liver of the yellow catfish caused by blue-green algae toxin through various ways such as improving key enzyme activity of liver function, inhibiting liver oxidative stress, relieving inflammatory reaction and reducing structural damage of tissues. The PQQ is a new food raw material approved in China in 2022, has advantages of high safety, good water solubility, moderate cost, similar dosage to that of feed vitamins and the like, and provides a safe, economical and convenient new nutritional intervention strategy for blue-green algae toxin poisoning of the yellow catfish, and has a wide industrial application prospect.

A use of a compound as shown in structural formula I or a hydroquinone form, (C1-C4) quinone form, stereoisomer, hydrate, deuterated product, ester, solvate, metabolite, and pharmaceutically acceptable salt or prodrug thereof in preparation of a drug for treating bacterial metabolism-related diseases.

The present invention belongs to the field of catalyst technology, and specifically discloses an organic hydrogen transfer aid for propane dehydrogenation and a synthesis method thereof. The preparation method described in the present invention is to first coat the surface of a quinone material (L) with a layer of SiO2, and then perform a hydrothermal crystallization treatment to form an S-1 molecular sieve shell to obtain an L@S-1 material. Through the confinement of the molecular sieve pores, the quinone material can realize a hydrogenation-dehydrogenation cycle at a higher reaction temperature. When the material is used in combination with a noble metal propane dehydrogenation catalyst, a series reaction of propane dehydrogenation and hydrogenation of the quinone material is realized, the hydrogen partial pressure of the propane dehydrogenation process is reduced, and the thermodynamic equilibrium limit is broken through, thereby realizing a propane dehydrogenation reaction at a lower reaction temperature. The reduction in reaction temperature will bring about advantages such as reduced energy consumption and increased catalyst stability.

The invention provides a method for preparing allyl alcohol through epoxypropane isomerization, and relates to the technical field of chemical synthesis. According to the method, propylene oxide is subjected to an isomerization reaction in the presence of a polymerization inhibitor to prepare allyl alcohol; wherein the polymerization inhibitor is a phenol polymerization inhibitor and / or a quinone polymerization inhibitor. The technical scheme of the invention can effectively reduce the deactivation rate of the catalyst and prolong the service life of the catalyst. The method for preparing allyl alcohol through epoxypropane isomerization is high in production efficiency and low in production cost, and has important industrial application value.

The invention belongs to the technical field of magnesium ion batteries, and particularly relates to an in-situ synthesized aqueous magnesium ion battery organic composite negative electrode material, a preparation method and a negative electrode. The negative electrode material provided by the invention is a negative electrode material PDBM (at) KB obtained by introducing a formaldehyde solution into a suspension liquid of 2, 5-dihydroxy-1, 4-benzoquinone and conductive carbon which are uniformly mixed, carrying out quinone-aldehyde condensation polymerization under the catalysis of glacial acetic acid and carrying out in-situ synthesis; meanwhile, the distribution of KB in the negative electrode material PDBM (at) KB is further improved through the technological means of ultrasonic dispersion, vacuum infiltration and the like, a rapid ion transmission channel is constructed, the utilization rate of PDBM active substances is remarkably increased, and the aqueous magnesium ion battery with the PDBM / KB as the negative electrode shows high capacity, long circulation, high rate performance and high power performance; therefore, the technical problem that an existing magnesium ion battery electrode material is low in performance is solved.

This invention relates to the field of genetic engineering technology, specifically to a mutant NAD(P)H-quinone dehydrogenase, engineered microorganisms, and their applications. The mutant NAD(P)H-quinone dehydrogenase provided by this invention can effectively enhance the threonine production capacity of bacterial strains. Introducing this mutant NAD(P)H-quinone dehydrogenase into bacterial strains significantly improves the threonine yield and conversion rate. This mutant NAD(P)H-quinone dehydrogenase provides a new strategy and method for improving the performance of amino acid-producing strains such as threonine, and has promising application prospects in amino acid strain modification.

The application relates to the technical field of analysis and detection, in particular to a detection method for a strong-toxic new pollutant 6PPD-quinone, which comprises the following steps: adopting a magnetic molecular imprinting polymer to perform specific adsorption on 6PPD-quinone in a water sample to be detected, eluting, and obtaining a sample liquid rich in 6PPD-quinone; and then adopting a single-atom colorimetric detection method to detect the sample liquid. The method realizes the enrichment of the target 6PPD-quinone, simplifies the pretreatment steps, releases the hands of the detection personnel, and realizes the high-sensitivity and high-selectivity detection of the content of 6PPD-quinone by combining the single-atom colorimetric detection method, so that the method can break through the limitation of large instruments and provide a brand-new solution for realizing the on-site, rapid and low-cost monitoring of ultra-trace 6PPD-quinone in the environment.

To provide a target substance sensing sheet with improved safety.SOLUTION: A target substance sensing sheet 20 has a first adhesive layer 5a containing an indicator that changes color in the presence of a target substance. The indicator is at least one selected from substances approved as food additives in Japan and substances extracted from food that are not approved as food additives. The indicator used may be at least one selected from the group including at least one polyphenol compound and at least one quinone dye.SELECTED DRAWING: Figure 1