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54results about How to "Clear molecular structure" patented technology
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Conjugated oligoelectrolyte electron transporting layers
InactiveUS20090230362A1Clear molecular structureGood reproducibilitySilicon organic compoundsElectrolytic capacitorsPolyelectrolyteCharge injection
An organic electronic or an optoelectronic device containing a conjugated oligoelectrolyte. In more particularized embodiments, the conjugated oligoelectrolyte is the charge injection or transport layer. The conjugated oligoelectrolyte can be positively or negatively charged, and used in conjunction in a device with either or high or low work function metal.
Owner:RGT UNIV OF CALIFORNIA
Three-arm efficient polycarboxylic acid water reducing agent and preparation method thereof
InactiveCN106084157AReveal molecular structureReveal the relationship between its performanceChemical structureAcid water
The invention relates to a three-arm efficient water reducing agent and a preparation method thereof, and belongs to the technical field of building concrete additives. The efficient water reducing agent is prepared through the step that an AB-type double-block copolymer of a three-arm structure is obtained through step-by-step polymerization by adopting three atom transferring radical polymerization reaction steps. The water reducing agent has the advantages of being controllable in chemical structure and molecular weight, narrow in molecular weight distribution and simple in process, is high in water reducing rate and good in slump retaining property, can obviously improve the concrete flowability and is low in sensitivity degree to mud. Compared with a traditional comb-shaped polycarboxylic water reducing agent, the problems that the polycarboxylic water reducing agent is sensitive to the mud in concrete, and the performance is reduced due to existence of the mud can be solved to a certain degree, and the three-arm efficient water reducing agent is especially suitable for the concrete with the high mud content.
Owner:UNIV OF JINAN
Multi-branched polycarboxylate superplasticizer and preparation method thereof
The invention relates to a multi-branched polycarboxylate superplasticizer and a preparation method thereof and belongs to the technical field of building concrete admixtures. The preparation method of the multi-branched polycarboxylate superplasticizer is characterized in that an AB type double block copolymer with a multi-branched structure is obtained by adopting three steps of atom transfer radical polymerization reaction through step-by-step polymerization. The superplasticizer has the characteristics of controllable chemical structure, controllable molecular weight, narrower molecular weight distribution and simple process. The superplasticizer is high in water-reducing rate, good in slump retaining property and low in sensitivity to mud; the flowability of concrete can be remarkably improved; dextrin is used as a main raw material, and the superplasticizer is low in cost, pollution-free and renewable; the dextrin is used for synthesizing the superplasticizer, so that the cost is remarkably reduced, and the pollution is avoided. Compared with a traditional comb-shaped polycarboxylate water reducer, the multi-branched polycarboxylate superplasticizer disclosed by the invention has the advantages that the problems that the polycarboxylate water reducer is more sensitive to the mud in the concrete and the performance of the polycarboxylate water reducer is reduced due to the existence of the mud can be solved to a certain degree; the polycarboxylate superplasticizer is particularly suitable for concrete with higher mud content.
Owner:UNIV OF JINAN
Star macromolecular antioxidant containing seven hindered phenol groups as well as preparation method and application of star macromolecular antioxidant
InactiveCN105061639AClear molecular structureHigh proportion of effective antioxidant ingredientsRubber materialOxygen
The invention discloses a star macromolecular antioxidant containing seven hindered phenol groups as well as a preparation method and application of the star macromolecular antioxidant. The preparation method comprises the following steps: mixing 3,5-di-tert-butyl-4-hydroxycinnamic acid, chloroform and thionyl chloride, heating to 40-60 DEG C, dropping dimethylformamide, reacting for 4-6 h and distilling at reduced pressure so as to obtain DBHCA-Cl; under nitrogen protection, dissolving a polyhydroxyl initiator, 4-dimethylaminopyridine and 2-4 g of triethylamine in tetrahydrofuran, cooling the reaction system to 0-5 DEG C by ice-bath and stirring; dissolving DBHCA-Cl by tetrahydrofuran, dropwise adding dissolved DBHCA-Cl in the reaction system through a constant-pressure funnel within 1.5-3.0 h, heating to 30-40 DEG C and continuously reacting for 24-72 h; collecting and treating so as to obtain the star macromolecular antioxidant containing seven hindered phenol groups. The antioxidant has good thermo-oxidative aging resistance and excellent extraction resistance and can be widely applied to rubber materials.
Owner:SOUTH CHINA UNIV OF TECH
Novel polysaccharide antibacterial mouthwash and preparation method thereof
ActiveCN105310960AWide range of raw materialsClear structureCosmetic preparationsToilet preparationsChemistrySide effect
The invention discloses a novel polysaccharide antibacterial mouthwash and a preparation method thereof. The novel polysaccharide antibacterial mouthwash comprises the active ingredients of carboxymethyl chitosan and propolis and further comprises a Chinese herbal medicine concentrate, sodium alginate, oleum menthae, a pH modifier, ethanol and purified water. The preparation method comprises the following steps: quantitatively adding carboxymethyl chitosan and a propolis and ethanol solution, and heating for dissolution; after the solution is cooled down, adding the Chinese herbal medicine concentrate, sodium alginate, oleum menthae and the pH modifier, supplementing purified water to obtain the total amount, and obtaining the novel polysaccharide antibacterial mouthwash after measuring the pH value. The novel polysaccharide antibacterial mouthwash has the effects of cleaning the oral cavity and resisting bacteria to protect teeth, meanwhile, reduces the allergy risk caused by propolis, has a very unique Chinese herbal medicine fragrance, is added with no synthetic essences, is safer and more healthy, is simple in preparation method, low in cost, lasting and effective in antibacterial effect, free from toxic and side effects on a human body and comfortable in taste.
Owner:江苏开源康达医疗器械有限公司
Anti-senile beauty-nourishing traditional Chinese medicine composition
ActiveCN105535477AAccelerate metabolic burnSignificant clinical effectAntinoxious agentsDermatological disorderMedicineNational standard
The invention discloses an anti-senile beauty-nourishing traditional Chinese medicine composition, which is prepared from the following components in parts by weight: 1 to 30 parts of rhizoma dioscoreae, 1 to 30 parts of common bletilla tuber, 1 to 30 parts of radix angelicae, 1 to 30 parts of fructus rubi, 1 to 30 parts of black wolfberry fruit, 1 to 30 parts of white poria cocos and 1 to 30 parts of black mulberry fruit. The traditional Chinese medicine composition provided by the invention is reasonable in compatibility, by combining many years of clinical application, and taking the advantage of homology of medicine and food, the composition meets national standard and sanitary requirement, and is healthy, safe and harmless to human bodies.
Owner:王琳
Preparation method and application of Pd complex-phosphomolybdic acid one-component dual-active-center catalyst
ActiveCN103480415AClear molecular structureConvenient researchPolycrystalline material growthFrom normal temperature solutionsPhosphomolybdic acidPtru catalyst
The invention relates to a preparation method and application of a Pd complex-phosphomolybdic acid one-component dual-active-center catalyst. Pd complexes and polyoxometalates are combined via electrostatic force, and a Pd complex-phosphomolybdic acid binary catalyst is prepared in a one-pot way. The preparation method is based on coordination substitution and an ion exchange reaction, and has the characteristics of high simplicity and easiness in implementation, operation controllability and the like. The Pd complex-phosphomolybdic acid binary catalyst represents better catalytic activity in the selective oxidation of alcohol, and the transformation ratio and selectivity respectively reach 99.8 percent and 98.2 percent to the hilt.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Dipyridine iron complex, and preparation method and applications thereof
InactiveCN110283264AClear molecular structureHigh activityIron group organic compounds without C-metal linkagesWeight distributionIsoprene
The invention discloses a dipyridine iron complex, and a preparation method and applications thereof, and belongs to the field of isoprene catalytic polymerization. The preparation method is capable of solving technical problems in the prior art that in conventional polyisoprene synthesis process, the adopted catalyst is high in cost, and micro structure controllable adjusting capacity is poor. The dipyridine iron complex is prepared through reaction of an ethanol solution of dipyridine with an ethanol solution of a ferrous salt or a ferric salt. The dipyridine iron complex is taken as a main catalyst in polyisoprene polymerization, the activity is high, the molecular weight of obtained polymers is high, and molecular weight distribution range is narrow. The preparation method can be used in polyisoprene industrialized production.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Combined medicine for treating tumors
InactiveCN104274489AGood effectSignificant effectOrganic active ingredientsInorganic active ingredientsSide effectBrazilin
The invention discloses a combined medicine for treating tumors. The combined medicine is prepared from unit preparations of an arsenic compound solution and a brazilin compound with different specifications, wherein the arsenic compound solution is prepared by the following steps: adding As2O3 powder into aseptic deionized water to obtain a suspension liquid, and dripping a NaOH solution into the suspension liquid until powder is completely dissolved. The brazilin compound consists of brazilin and brazilein. According to the combined medicine, an arsenic compound and a brazilin compound are combined, so that the curative effect of the arsenic compound can be improved, the dosage and corresponding toxic and side effects of the arsenic compound can be controlled, the combined medicine can be used more safely, and the therapeutic spectrum of the arsenic compound can be extended. The combined medicine has an especially excellent synergetic effect in the aspect of T-lymphoma cell line Jurkat cells.
Owner:楼兰花
Jujube glutathione peroxidase gene
InactiveCN102533809AImprove stress resistanceImprove understandingOxidoreductasesGenetic engineeringBiotechnologySignalling molecules
The invention relates to the technical field of genetic engineering, in particular to a jujube glutathione peroxidase gene. The nucleotide sequence and amino acid sequence of the gene are shown by SEQ ID NO:1 and SEQ ID NO:2 in the sequence table. In the invention, a plant expression vector is constructed, a transgenic arabidopsis plant is obtained, and the salt tolerance and drought tolerance ofthe plant are evaluated to prove that the stress resistance of the plant is improved by transferring the gene into the plant as a target gene, thereby being of great practical significance to the plant variety improvement; and further study on the stress resistance mechanism of the plant with good resistance is conducive to making clear the molecular structure, expression, function and control ofthe adversity related gene, provides certain experiment data and lays theoretical foundation for further sufficiently using the good-resistance genes to improve the stress resistance of the plant, ishelpful to understanding the effect of GPXs in the signal transduction of plant active oxygen, and promotes understanding of people about the active oxygen serving as a signal molecular.
Owner:AGRI BIOTECH RES CENT OF SHANXI PROVINCE +1
Carbazole nine-element condensed ring central core-containing D(A-Ar)4 type organic photoelectric material, and preparation method and applications thereof
InactiveCN109180706AClear molecular structureMolecular weight determinationOrganic chemistrySolid-state devicesOrganic solar cellCarbazole
The invention belongs to the technical of organic photoelectric material, and more specifically relates to a carbazole nine-element condensed ring central core-containing D(A-Ar)4 type organic photoelectric material, and a preparation method and applications thereof. According to the preparation method, a three-element carbazole central ring unit and a thiophene derivative are subjected to coupling, ring closure reaction and coupling reaction are adopted so as to obtain an aromatic compound derivative containing a carbazole based nine-element condensed ring coplanar structure, and a D(A-Ar)4 butterfly type organic small molecular photovoltaic material containing a carbazole nine-element condensed ring center donor core. The aromatic compound derivative containing a carbazole based nine-element condensed ring coplanar structure, and the D(A-Ar)4 butterfly type organic small molecular photovoltaic material possesses high heat stability and excellent plane performance. The structure witha wide spectrum absorption range and an appropriate energy level is promising to be taken as organic solar energy cell donors or receptor materials.
Owner:CHANGZHOU UNIV
Metallic tin-containing double-decker polyhedral oligomeric silsesquioxane, and preparation method and application thereof
The invention discloses a metallic tin-containing double-decker polyhedral oligomeric silsesquioxane, and a preparation method and an application thereof. The metallic tin-containing double-decker polyhedral oligomeric silsesquioxane contains bimetallic tin, and has a structural formula represented by formula (I). The preparation method is carried out in a protective atmosphere, and comprises thefollowing steps: hydroxyl group-containing double-decker polyhedral oligomeric silsesquioxane and a metallic tin organic compound are dispersed in a solvent, then an additive is added, a reaction is performed, and post-treatment is finally performed to obtain the metallic tin-containing double-decker polyhedral oligomeric silsesquioxane. The metallic tin-containing double-decker polyhedral oligomeric silsesquioxane can be used as a catalyst for coordination ring-opening polymerization, and is especially used as a catalyst for the polymerization of polylactic acid. The metallic tin-containing double-decker polyhedral oligomeric silsesquioxane can obtain a narrow molecular weight distribution polymer when used as a coordination ring-opening polymerization catalyst, and they can be stored fora long time without affecting the catalytic performance.
Owner:BEIJING UNIV OF CHEM TECH
Barium-silicon tungsten oxygen cluster catalyst, preparation method and application thereof
InactiveCN106622372AEasy to separateHigh catalytic activityOrganic compound preparationAlkaline-earth metal silicatesAlkaline earth metalOxygen
The invention belongs to the technical field of preparation of alkaline earth metal modified silicon tungsten oxygen cluster catalyst materials, and in particular relates to a preparation method and application of a binuclear barium-silicon tungsten oxygen cluster catalyst. The catalyst can realize selective oxidation reaction of benzyl alcohol compounds, the conversion rate is as high as 93.6%, and the selectivity is as high as 96.5%.
Owner:LIAOCHENG UNIV
Preparation method of tetramer nickel substituted silicon tungsten oxygen cluster catalyst
InactiveCN107297210AClear molecular structureEasy to prepareOrganic chemistryOrganic compound preparationChlorideOxygen
The invention discloses a preparation method of a tetramer nickel substituted silicon tungsten oxygen cluster catalyst. The method comprises the following steps: placing K8[gamma-SiW10O36].12H2O, nickel chloride and water into a beaker and reacting, and then filtering and slowly volatilizing the filtrate, thereby acquiring a crystal of the tetramer nickel substituted silicon tungsten oxygen cluster catalyst. The method has the characteristics of high reaction speed, simple reaction process, high-purity product, simple post-processing, and the like. In the selective oxidization of sulfur ether, the conversion rate is as high as 93.4% and the selectivity is as high as 99.3%.
Owner:聊城市技师学院
Imidazole functionalized molybdenum oxygen cluster catalyst as well as preparation method and application thereof
InactiveCN105597824ASimple manufacturing methodClear molecular structureOrganic chemistryOrganic compound preparationLow activityOxygen
The invention aims to solve the problems of lower activity, large catalyst dosage and the like of a polyoxometalate cluster catalyst in a selective oxidation process of diphenyl sulfide with hydrogen peroxide as an oxidizing agent, and provides a preparation method for synthesizing novel N-N-allyl imidazole functionalized molybdenum oxygen cluster catalyst which is expected to have better catalysis in selective oxidation of diphenyl sulfide.
Owner:LIAOCHENG UNIV
Pyridine imine ferrous acetylacetonate complex, preparation method thereof and method for catalyzing conjugated diene polymerization by using pyridine imine ferrous acetylacetonate complex
ActiveCN111233938AHigh activityHigh molecular weightIron organic compoundsPolymer sciencePtru catalyst
The invention relates to a pyridine imine ferrous acetylacetonate complex, a preparation method thereof and a method for catalyzing conjugated diene polymerization by using the pyridine imine ferrousacetylacetonate complex. The invention belongs to the field of conjugated diene catalytic polymerization. The invention aims to solve the technical problems of poor solubility of the existing iron-based catalyst in the reaction system and low molecular weight of the polymer catalyzed and polymerized by the iron-based catalyst. The pyridine imine ferrous acetylacetonate complex disclosed by the invention is prepared by reacting a dichloromethane solution of pyridine imine with ferrous acetylacetonate; the pyridine imine ferrous acetylacetonate complex serves as a main catalyst in conjugated diene polymerization, the catalyst is good in solubility in a reaction system and high in activity, the obtained polymer is high in molecular weight and narrow in molecular weight distribution, and the method can be used for industrial production of poly conjugated diene.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Preparation method of three-arm block polycarboxylic acid water reducing agent
InactiveCN108585588AReveal molecular structureReveal the relationship between its performanceChemical structureBenzoyl bromide
The invention discloses a preparation method of a three-arm block polycarboxylic acid water reducing agent. The preparation method comprises that triol, an alkali, CS2 and benzyl bromide in a molar ratio of 1: 3-4: 2-5: 2-7 undergo a reaction to produce a three-arm chain transfer agent, under the action of the three-arm chain transfer agent and an initiator, isoamyl alcohol polyoxyethylene ether and acrylic acid undergo an RAFT polymerization reaction to produce a three-arm block compolymer, and the compolymer is treated to form the three-arm block polycarboxylic acid water reducing agent. Thewater reducing agent has a controllable chemical structure, controllable molecular weight, narrow molecular weight distribution, simple processes, a high water-reducing rate and good moisture retention effects, can obviously improve concrete fluidity, has low sensitivity to mud, can meet higher construction requirements and has broad application prospects.
Owner:UNIV OF JINAN
Novel use of acetate-containing small molecules as peroxidases acting as catalysts
InactiveCN107831161AClear molecular structureEasy to getMaterial analysis by observing effect on chemical indicatorBiological testingAcetic acidCholesterol
The invention discloses a novel use of acetate-containing small molecules as peroxidases acting as catalysts. It is disclosed herein for the first time that acetate-containing small molecules have peroxidase activity. The acetate-containing small molecules have clear molecular structure, are easy to obtain and insensitive to heat, have good stability and low price and are easy to commercially develop. The invention also successfully constructs a novel method of detecting hydrogen peroxide based on the novel use and successfully applies the novel method in test papers to detect hydrogen peroxide, glucose, uric acid, cholesterol and the like. The peroxidase activity based on the small molecules is applicable to the fields of food, environment and sanitation and the like, and the small molecules have a promising application prospect.
Owner:GUANGDONG IND TECHN COLLEGE
Preparation method of heptanuclear manganese-substituted silicon tungsten oxide catalyst and application thereof
ActiveCN108067303AClear molecular structureConvenient researchOrganic chemistryOrganic-compounds/hydrides/coordination-complexes catalystsManganesePotassium
The invention discloses a preparation method of a heptanuclear manganese-substituted silicon tungsten oxide catalyst and application thereof. The preparation method comprises the following steps: placing sodium tungstate, water, manganese salt, sodium silicate and potassium chloride in a reaction kettle, adjusting the pH, carrying out a reaction, cooling to room temperature after the reaction, andfiltering to obtain black crystals. When the catalyst is applied to the process of synthesizing TBiTD by an oxygen method, the high yield is as high as 86%, a reaction process is simple, the obtainedproduct is high in purity, and post-treatment is simple.
Owner:LIAOCHENG UNIV
Intelligent hydrogel formed from single protein
ActiveCN111777771AAvoid using effectsAvoid residueCosmetic preparationsAerosol deliveryEscherichia coliSmart hydrogels
The invention belongs to the field of biological materials, and particularly relates to intelligent hydrogel formed by single protein and having catalytic activity. The intelligent hydrogel is formedby diluting lipoic acid ligase protein (LplA) from escherichia coli into a buffer solution and controlling physical and chemical conditions of the system. The intelligent hydrogel has the advantages that the temperature sensitivity and reversibility are realized, the critical temperature range is 8-80 DEG C, hydrogel is formed when the critical temperature is higher than the critical temperature,the solution state is recovered when the temperature is reduced, the reversible conversion process can be repeated for more than 30 times, and meanwhile, the temperature response is sensitive, the conversion temperature range is within 2 DEG C, and the temperature response time is short (within 3 minutes). The hydrogel can also control the gel state by adjusting the pH and the ion concentration. The intelligent hydrogel can be widely applied to the fields of tissue engineering and medical cosmetology such as three-dimensional cell culture, drug sustained release, targeted therapy drug preparation, beauty skin care products and temperature sensing.
Owner:HUAANTANG BIOTECH GRP CO LTD
A kind of imidazole copper catalyst, preparation method and application
InactiveCN105536871BClear molecular structureEasy to prepareOrganic-compounds/hydrides/coordination-complexes catalystsCarbonyl group formation/introductionRecyclable catalystMetal catalyst
The purpose of this invention is to solve the problems reported in the literature that the coordination polymer catalyst has low activity in the process of selective oxidation of benzyl hydrocarbons. Provided are a synthetically recoverable catalyst and a preparation method thereof, capable of achieving the goal of selective oxidation of benzyl hydrocarbon molecules. The design concept of the present invention is as follows: carbonyl diimidazole can be hydrolyzed in water, and then Cu is further reacted with polynitrogen ligand imidazole to construct a metal complex, and an imidazole copper catalyst is synthesized. Metallic Cu catalysts with well-defined structures were applied to the selective catalytic oxidation of benzylic hydrocarbons in order to achieve high conversion and high selectivity.
Owner:LIAOCHENG UNIV
Preparation method and application of Pb complex-vanadate substituted phosphomolybdic acid one-component dual-active-center catalyst
ActiveCN103480417AClear molecular structureConvenient researchPolycrystalline material growthFrom normal temperature solutionsPhosphomolybdic acidPtru catalyst
The invention relates to a preparation method and application of a Pb complex-vanadate substituted phosphomolybdic acid one-component dual-active-center catalyst. Pb complexes and vanadate substituted phosphomolybdic acid are combined via electrostatic force, and a Pb complex-vanadate substituted phosphomolybdic acid binary catalyst is prepared in a one-pot way. The preparation method is based on coordination substitution and an ion exchange reaction, and has the characteristics of high simplicity, easiness in implementation, operation controllability and the like. The Pb complex-vanadate substituted phosphomolybdic acid one-component dual-active-center catalyst represents better catalytic activity in the selective oxidation of alcohol, and the transformation ratio and selectivity are respectively 92.8 percent and 93.2 percent.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Novel polysaccharide antibacterial mouthwash and preparation method thereof
ActiveCN105310960BWide range of raw materialsClear structureCosmetic preparationsToilet preparationsPropolisSide effect
The invention discloses a novel polysaccharide antibacterial mouthwash and a preparation method thereof. The novel polysaccharide antibacterial mouthwash comprises the active ingredients of carboxymethyl chitosan and propolis and further comprises a Chinese herbal medicine concentrate, sodium alginate, oleum menthae, a pH modifier, ethanol and purified water. The preparation method comprises the following steps: quantitatively adding carboxymethyl chitosan and a propolis and ethanol solution, and heating for dissolution; after the solution is cooled down, adding the Chinese herbal medicine concentrate, sodium alginate, oleum menthae and the pH modifier, supplementing purified water to obtain the total amount, and obtaining the novel polysaccharide antibacterial mouthwash after measuring the pH value. The novel polysaccharide antibacterial mouthwash has the effects of cleaning the oral cavity and resisting bacteria to protect teeth, meanwhile, reduces the allergy risk caused by propolis, has a very unique Chinese herbal medicine fragrance, is added with no synthetic essences, is safer and more healthy, is simple in preparation method, low in cost, lasting and effective in antibacterial effect, free from toxic and side effects on a human body and comfortable in taste.
Owner:江苏开源康达医疗器械有限公司
Spermine-modified pullulan as an immunopotentiator
ActiveCN108785323BProlong the action timeClear molecular structureOrganic active ingredientsCancer antigen ingredientsPullulanImmunopotentiation
The invention relates to spermine-modified pullulan as an immunopotentiator. Specifically, a spermine molecule is coupled to a hydroxyl group or a C framework of the pullulan in the spermine-modifiedpullulan; the intake yield of the spermine molecule is 1%-90%, especially 10%-30%. In another aspect, a composition containing the spermine-modified pullulan and a purpose of the composition are provided.
Owner:THE INST OF BASIC MEDICAL SCI OF CHINESE ACAD OF MEDICAL SCI
Copper corrosion inhibitor and preparation method thereof
InactiveCN112028845AClear molecular structureGood corrosion inhibitionOrganic chemistryBenzotriazoleEthanolamines
The invention relates to the technical field of metal corrosion and protection, and discloses a copper corrosion inhibitor and a preparation method thereof. The copper corrosion inhibitor is Mannich base obtained through a heating reflux reaction of ethanolamine, formaldehyde and benzotriazole according to a certain proportion, is a mixed corrosion inhibitor with an anode as the main component, isremarkable in corrosion inhibition effect, and has safe and environment-friendly effects.
Owner:YANGTZE UNIVERSITY
A combination drug for treating tumors
InactiveCN104274489BGood effectSignificant effectOrganic active ingredientsInorganic active ingredientsSide effectOncology
The invention discloses a combined medicine for treating tumors. The combined medicine is prepared from unit preparations of an arsenic compound solution and a brazilin compound with different specifications, wherein the arsenic compound solution is prepared by the following steps: adding As2O3 powder into aseptic deionized water to obtain a suspension liquid, and dripping a NaOH solution into the suspension liquid until powder is completely dissolved. The brazilin compound consists of brazilin and brazilein. According to the combined medicine, an arsenic compound and a brazilin compound are combined, so that the curative effect of the arsenic compound can be improved, the dosage and corresponding toxic and side effects of the arsenic compound can be controlled, the combined medicine can be used more safely, and the therapeutic spectrum of the arsenic compound can be extended. The combined medicine has an especially excellent synergetic effect in the aspect of T-lymphoma cell line Jurkat cells.
Owner:楼兰花
Imidazole-functionalized molybdenum-oxygen cluster catalyst, preparation method and use thereof
InactiveCN105597824BSimple manufacturing methodClear molecular structureOrganic chemistryOrganic compound preparationLow activityOxygen
The invention aims to solve the problems of lower activity, large catalyst dosage and the like of a polyoxometalate cluster catalyst in a selective oxidation process of diphenyl sulfide with hydrogen peroxide as an oxidizing agent, and provides a preparation method for synthesizing novel N-N-allyl imidazole functionalized molybdenum oxygen cluster catalyst which is expected to have better catalysis in selective oxidation of diphenyl sulfide.
Owner:LIAOCHENG UNIV
Jujube tree ascorbate peroxidase gene and application thereof in improving stress resistance of plants
InactiveCN102161996BImprove stress resistanceClear molecular structureEnzymesFermentationBiotechnologyEscherichia coli
Owner:AGRI BIOTECH RES CENT OF SHANXI PROVINCE +1
Arsenic compound solution and albumin nanoparticle and lyophilized preparation entrapping arsenic compound prepared using same
ActiveUS9271943B2Clear molecular structureGood treatment effectOrganic active ingredientsPowder deliveryAlbumin solutionSolvent
An arsenic compound solution, and an albumin nanoparticle and a lyophilized preparation prepared using same and entrapping an arsenic compound. The arsenic compound solution is prepared using the following method: adding As2O3 powder in sterile deionized water to obtain a suspension, 6 to 25 mg of As2O3 powder being added in every mL of sterile deionized water; dripping an NaOH solution to the obtained suspension until the powder is fully dissolved and adjusting the pH of the solution to 7.5 to 9, and making the concentration of the obtained arsenic compound solution be 5 to 20 mg / mL in terms of the added As2O3. The albumin nanoparticle is prepared by mixing an albumin solution and the arsenic solution and the arsenic solution with the mass ratio of the added As2O3 in arsenic compound solution to the albumin ranging from 1:5 to 1:20 and using a method of solvent removing and physical curing.
Owner:ZHEJIANG CHINESE MEDICAL UNIVERSITY
A kind of preparation method and application of bis(n-(4-carboxy)phenyl)peryleneimide zinc complex catalyst
ActiveCN109824705BClear molecular structureConvenient researchOrganic-compounds/hydrides/coordination-complexes catalystsZinc organic compoundsPerylenemonoimidePtru catalyst
The invention discloses a preparation method of a bis(N-(4-carboxy)phenyl)peryleneimide zinc complex catalyst. In the method, zinc acetate, bis(N-(4-carboxy)phenyl)perylene Imide, triethylamine, water, and N,N'-dimethylimide are placed in a beaker for reaction. After the reaction is completed, filter and the filtrate evaporates slowly to obtain bis(N-(4-carboxy)phenyl)perylene Crystals of zinc imide complex catalysts. The method of the invention has the advantages of simple reaction process, high purity of the obtained product and simple aftertreatment. In the carbon dioxide cycloaddition reaction under atmospheric pressure, the conversion rate is as high as 97.5%, and the selectivity is as high as 97.9%.
Owner:BINZHOU UNIV
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