55 results about "Quinone" patented technology

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.

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.

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 invention relates to certain chromanol, quinone or hydroquinone compounds and derivatives thereof for treatment of Alzheimer's disease and / or for improving memory function and / or reducing plaque load. Specifically, the present invention relates to chromanol compounds chosen from (6-hydroxy-2,5,7,8-tetramethylchroman-2yl)(piperazin-1-5 yl)methanone, ((S)-6-hydroxy-2,5,7,8-tetramethyl-N-((R)-piperidin-3-yl)chroman-2- carboxamide hydrochloride and S-(6-hydroxy-2,5,7,8-tetramethylchroman-2-yl)(4-(2- hydroxyethyl)piperazin-1-yl)methanone, and pharmaceutically acceptable salts thereof.

This invention discloses a green and efficient bioreduction method for quinone-structured natural compounds used in textile dyeing. This method utilizes biosensor-regulated electrode microbial communities of *Shewanella putrefactiveis* and *Saccharomyces cerevisiae* as whole-cell biocatalytic reduction staining conditions. It constructs an electron transport system centered on cable bacteria and redox factors, and a dispersed staining system of quinone-structured natural compounds acting as electron acceptors. This provides a green and efficient bioreduction method for quinone-structured natural compounds used in textile dyeing. Electrons generated by biosensor-regulated electrode microbial communities are directly transferred between microbial species to cable bacteria and redox factors, and then efficiently transferred to highly dispersed natural compounds acting as electron acceptors, resulting in novel structures with dyeing properties.

This invention discloses a method for detecting adiponectin in human serum using a polydopamine-modified wire mesh carbon electrode, specifically relating to the field of adiponectin detection technology. The method involves preparing a 2 mg / mL dopamine hydrochloride solution using a 10 mM tris(hydroxymethyl)aminomethane hydrochloride buffer solution (pH=8.5) and adding it dropwise onto the surface of the working electrode. A polydopamine-modified layer is formed by electropolymerization within a range of -800 mV to 600 mV using cyclic voltammetry. A conductive layer of a poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid complex is then coated. Adiponectin antibodies are then immobilized on the surface of the modified layer via covalent binding of amino and quinone groups. After specific binding with a serum sample, the oxidation peak current change is read out from -100 mV to 350 mV in a buffer detection medium containing 5 mM ferricyanide redox pairs, and the concentration is output from a standard curve. This method improves the density of antibody immobilization sites and inhibits non-specific serum adsorption, enhancing signal stability and sensitivity, and enabling rapid, low-cost quantitative detection of trace amounts of serum.

The present invention relates to a method for manufacturing an ink comprising n-type conducting polymer, said method comprising the steps of: a) providing a catalyst or a catalyst precursor: b) oxidizing said catalyst precursor by means of an oxidizing promoter thus obtaining said catalyst: c) adding a monomer to a solvent system comprising a polar aprotic solvent in the presence of said catalyst, thus providing a reaction solution: d) allowing the monomer to polymerize in said reaction solution thus obtaining an ink comprising n-type conducting polymer, wherein said catalyst is a quinone comprising at least one branched side chain comprising at least one chiral centre.

Classes of quinones for use in the treatment of red blood cell enzymopathologies. The treatment increases ATP in non-mitochondrial cells. Thus, the present invention relates to classes of quinones for use in the treatment of diseases or conditions associated with or caused by defects in red blood cell glycolysis.

The application discloses a low-temperature proton "ice" battery preparation method and application based on frozen sulfuric acid electrolyte, and belongs to the field of energy storage. The core of the battery system is to use a specific concentration of sulfuric acid aqueous solution as an electrolyte, which can still maintain excellent proton conduction performance after being frozen at low temperature. By matching the electrode material that can efficiently cooperate with it, the rapid transmission and reversible storage of protons in the battery are realized, so that stable and reversible charge and discharge cycles are completed under extreme low temperature conditions. The battery is composed of a positive electrode, a negative electrode, a separator and a sulfuric acid aqueous solution electrolyte. The negative active material is preferably a quinone or a nitrogen heterocyclic conjugated organic compound, and the positive active material is a Prussian blue analogue. The proton battery has high power output capacity and long cycle stability under extreme low temperature environment, and has the potential to meet the dual demands of performance and reliability of energy storage devices in harsh low temperature application scenarios.

The present application relates to a kind of drug composition for preventing and adjuvant therapy of Alzheimer's disease and preparation method thereof, belong to medical health technical field.The prescription of the drug composition prepared in the present application includes the following active ingredients, phosphatidylserine, pyrrole quinoline quinone, coenzyme Q10, curcumin, EGCG, alpha-lipoic acid, acetyl L-carnitine, magnesium threonate, vitamin E, folic acid and vitamin B12.The preparation method of the drug composition also includes the following steps: the product is loaded with energy by weak magnetic resonance equipment to the composition.The drug composition reaches the effect of antioxidation, anti-inflammation, improves cerebral blood flow and protects neuron by the synergistic effect of multiple functional components, so as to help slow down the progress of Alzheimer's disease.

The application discloses a kind of water-resistant type synergic modified plywood adhesive and preparation method thereof.The method comprises: mixing water, urea, alkaline regulator and soybean protein powder, and obtaining protein main glue liquid by heating stirring;Nanocellulose is dispersed in water, and coating layer is formed by sequentially adding lignin, tannin and chitosan oligomer, and then oxidation treatment is carried out to obtain quinone lignin-tannin-chitosan coated nanocellulose crosslinking body;Then add bio-based hydrophobic modifier, make it fixed on the surface of crosslinking body, and then compound with protein main glue liquid, polyol and metal salt to obtain adhesive.The application improves the bonding strength of adhesive and wood interface through the synergistic effect of quinone polyphenol active layer, chitosan bridging layer, nanocellulose reinforced skeleton and hydrophobic adjusting layer, improves the water resistance of glue layer, wet-state bonding strength, pre-pressing performance and construction stability, and is suitable for the preparation of plywood and other wood composites.

This invention discloses an indoline fused heterocyclic compound, its preparation method, and its applications, belonging to the field of pharmaceutical synthesis technology. The method includes the following steps: using quinone imine monoketal and α,β-unsaturated cycloalkenyl ether as raw materials, and employing a Brønsted acid-phosphonic acid catalyst, a Brønsted acid-catalyzed [3+2] tandem cyclization reaction is carried out to obtain the indoline fused heterocyclic compound. The method provided by this invention features readily available raw materials and mild conditions, while also exhibiting high regioselectivity, chemoselectivity, and atom economy. The product can be efficiently separated by column chromatography, providing an excellent pathway for the large-scale preparation of this type of compound. Furthermore, the indoline fused heterocyclic compound provided by this invention has a significant inhibitory effect on the growth of human cervical cancer cells (HeLa), demonstrating good antitumor biological activity, which is of great positive significance for promoting the development of antitumor drugs.

This invention relates to the field of polymer molding materials. A functional color-printed composite packaging film of ultra-high molecular weight polyethylene is disclosed, which is formed by curing a polyethylene film substrate, p-hydroxybenzoic acid, polyethylene glycol diacrylate, laccase, and acrylate ink monomers. The film is formed by covalently coupling quinone radicals generated from p-hydroxybenzoic acid and polyethylene glycol diacrylate under laccase catalysis to the substrate surface, forming a polyethylene glycol grafted interlayer. Subsequently, ultraviolet light-initiated polymerization is performed on the surface of the interlayer to form a cross-linked and cured ink layer. This method utilizes the covalently bonded grafted interlayer to block the rearrangement of non-polar molecular chains of the substrate to the surface, maintaining surface polarity stability, and enabling the ink layer and substrate to possess the highest standard peel strength, with no blistering or peeling of the ink layer under boiling water conditions.

The application 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 imidazo pyridine and humus dispersed in the membrane matrix; the material of the membrane matrix is polyvinylidene fluoride / butadiene, the polyvinylidene fluoride / butadiene is a random copolymer of vinylidene fluoride and butadiene, and an anthraquinone modification unit is connected to a butadiene structural unit of the random copolymer. The graphene-based quinone mediator membrane provided by the application has a high initial denitrification rate and a denitrification rate over time.

The application discloses a method for simultaneously detecting 59 kinds of halogenated phenolic and quinone disinfection by-products based on solid phase extraction enrichment and high performance liquid chromatography mass spectrometry, and belongs to the technical field of disinfection by-product detection. The method comprises the following steps: 1, drawing standard curves of 59 kinds of halogenated phenolic and quinone disinfection by-products respectively; and 2, quantitatively analyzing the concentration of halogenated phenolic and quinone disinfection by-products in a water sample to be detected. The application can simultaneously detect 59 kinds of halogenated phenolic and quinone DBPs, and the detection limit and the quantitative limit are 0.03 ng / L to 135.23 ng / L and 0.1 ng / L to 450.76 ng / L respectively; the recovery rate and the relative standard deviation (RSD) of the river water are 72.41% to 119.54% and 1.86% to 16.03% respectively; and the recovery rate and the RSD of the tap water in Harbin are 83.52% to 122.36% and 2.09% to 14.95% respectively.

This application relates to the field of graphitic carbon nitride photocatalyst technology, and discloses a coumarin-doped graphitic carbon nitride photocatalyst, its preparation method, and its application. The preparation method includes: dissolving dihydroxycoumarin in anhydrous ethanol, ultrasonically dispersing it to obtain a homogeneous solution; mixing the homogeneous solution with urea, and drying it at low temperature to obtain a precursor; grinding the precursor and then calcining it at high temperature to obtain a CM-CN photocatalyst; and subjecting the CM-CN photocatalyst to static oxidation to obtain a coumarin-doped graphitic carbon nitride photocatalyst. This application innovatively proposes a CM-CN-AO photocatalyst prepared by modifying coumarin combined with a unique "oxidation enhancement" process, using urea as a carbon nitride precursor. Through a mild oxidation process under long-term static placement in air, a quinone structure is generated, optimizing its surface electronic structure and increasing photocatalytic active sites, thereby achieving a significant improvement in hydrogen production performance and breaking through the performance limitations of traditional carbon-nitrogen materials.

The application discloses a kind of free radical source molecule modified metal-free high-temperature ferromagnetic carbon materials, preparation method and application, material is obtained by electrochemical modification free radical source molecule on the surface or interlayer of carbon material, free radical source molecule is any one or more in quinone / quinone dimethyl derivative directly reduced by cathode or need pass through two-pole cooperation hydroxyl-naphthoquinone / anthraquinone molecule, carbon material is any one of bulk carbon material or powder carbon material;Preparation method includes: dissolving organic molecule in solvent to obtain molecular solution;Carbon material is fixed on electrode;Electrochemical reaction modification is carried out under constant voltage, and target product is obtained after drying;The application realizes metal-free, high Curie temperature ferromagnetic carbon material, with light weight, flexibility, excellent conductivity, adjustable magnetic characteristics, etc., can be used in electromagnetic shielding, microwave absorption, flexible magnetic response device and structure-electromagnetic integrated composite material and other fields in the future.

This invention provides a radiosensitive linear composition capable of forming a hardened film with high radiation sensitivity, dry etching resistance, and excellent transparency; an interlayer insulating film formed from said composition; a display element including said interlayer insulating film; and a method for manufacturing the interlayer insulating film. This invention relates to a radiosensitive linear composition comprising: an alkali-soluble polymer (A) (excluding polymer (C)); a quinone diazide compound (B); a polymer (C) comprising a structural unit (V) represented by formula (1) and a structural unit (VI) derived from at least one compound selected from the group consisting of maleimide, N-substituted maleimide, and maleic anhydride, wherein the total content of said structural unit (V) and structural unit (VI) is 55% by mass or more relative to all structural units constituting polymer (C); and a solvent (S).

Class of quinones for use in the treatment restoring, normalizing and / or improving ATP in cells lacking mitochondria, such as red blood cells. Specific example is use in the treatment of red blood cell enzymopathies, especially in the treatment of defects in red blood cell metabolism such as defects in red blood cell glycolysis. The treatment increases ATP in non-mitochondrial cells. Thus, the present invention relates to a class of quinones for use in the treatment of diseases or conditions associated with or caused by defects in red blood cell glycolysis.

This invention relates to the field of food preservation technology, specifically to a nano-zinc oxide-chitosan composite food preservation coating and its preparation method. The coating comprises quinone-imine cross-linked modified chitosan, p-hydroxyacetophenone, nano-zinc oxide, glycerol, sodium citrate, ascorbic acid, potassium sorbate, and deionized water. By introducing a quinone-imine cross-linking structure into the chitosan molecules, the density and stability of the film are improved; further, the introduction of p-hydroxyacetophenone to generate hydrogen bonds and π-π interactions with the modified chitosan enhances intermolecular forces and promotes the uniform dispersion of nano-zinc oxide. The coating obtained through optimized process conditions exhibits high transparency, good mechanical strength and toughness, and significantly improved inhibition zone diameter and antioxidant capacity. This invention, through the synergistic effect of quinone-imine cross-linking modification and small molecules, achieves a comprehensive improvement in the transparency, stability, and antibacterial durability of the coating, demonstrating outstanding inventiveness and application value.

This invention discloses a phenyl-modified, biasymmetric (α-diimine) nickel olefin catalyst based on ethylene acenaphthene quinone as its framework, its preparation method, and its applications. The catalyst's structural formula is shown in Formula (I), where X is chlorine or bromine. This catalyst has a simple preparation process and, when used as a co-catalyst for ethylene polymerization, exhibits results contrary to conventional experimental observations: larger substituents lead to lower molecular weight polymers with better flowability and dispersibility, showing broad application prospects in the elastomer field. Furthermore, this catalyst also exhibits good thermal stability and polymerization activity, demonstrating promising industrial application potential. Formula (I).

The invention discloses a compound type hair dye as well as a preparation method and application thereof. Comprising an agent A and an agent B, the agent A contains indigo blue, henna quinone, a thickening agent, a surfactant, an organic solvent and water; the agent B contains a natural plant extracting solution, a thickening agent, a surfactant and water; the natural plant extract is obtained by the following steps: crushing natural plants, mixing, adding water of which the weight is 1-1.5 times of the total weight of the natural plants, carrying out ultrasonic treatment at 45-55 DEG C for 1.5-3 hours, and then centrifuging to obtain supernate, namely a natural plant extracting solution; the natural plant is selected from at least one of polygonum multiflorum, walnut green seedcase, eclipta, madder, lithospermum, ginger and sophora flower bud.

The application discloses a preparation method of silkworm blood lymph fluid with inhibited melanization reaction and low endotoxin, which comprises the following steps: low endotoxin silkworm variety selection, silkworm body disinfection and impurity removal, silkworm body low-temperature anesthesia, blood lymph fluid collection, anti-melanization treatment, phenol oxidase inactivation treatment, sediment removal and anaerobic preservation, so as to finally obtain the silkworm blood lymph fluid with inhibited melanization reaction and low endotoxin. The silkworm blood lymph fluid extracted by the prior art contains a large amount of endotoxin, which is extremely harmful to in-vitro cell culture and is one of the bottlenecks for replacing fetal bovine serum with insect blood lymph fluid. The application can reduce the endotoxin concentration in the silkworm lymph fluid. In view of the problems caused by quinone derivatives generated by melanization reaction, the application can reduce the phenol oxidase proenzyme activity in the silkworm blood lymph fluid, long-term inhibit the melanization reaction of the blood lymph fluid, reduce the accumulation of toxic quinones, and make the prepared silkworm blood lymph fluid capable of being used for long-term in-vitro cell culture.

This invention relates to a slow-release composite carbon source for kitchen waste fermentation and its preparation method, belonging to the field of environmental engineering technology. The composite carbon source has a microcapsule structure, comprising, from the inside out, an inner layer, a middle layer, and an outer layer: the inner layer is a modified biochar framework loaded with redox mediators, containing a hierarchical porous biochar framework. The surface of the hierarchical porous biochar framework contains oxygen-containing functional groups, and quinone mediators are loaded on its surface and within its pores; the middle layer is a semi-solid carbon source wetting layer, which is a semi-solid gel buffer layer containing a lignocellulose framework and short-chain volatile fatty acids, prepared by concentrating the anaerobic co-fermentation broth of kitchen waste and agricultural straw; the outer layer is a semi-permeable polymer cross-linked barrier layer, which wraps around the outer surface of the middle layer. This invention can improve the carbon source loading and slow-release stability, realize the synergistic resource utilization of multi-source solid waste such as agricultural straw and kitchen waste, and enhance the denitrification efficiency under antibiotic stress.