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Multiple reversible color change microcapsule anti-counterfeiting material and preparation method and application thereof
InactiveCN101724392AHigh-speed emulsification and dispersionGood weather resistanceOther chemical processesLuminescent/fluorescent substance additionInfraredWater based
The invention discloses a multiple reversible color change microcapsule anti-counterfeiting material and a preparation method and applications thereof. The preparation method comprises the following steps: dissolving at least one of temperature-sensitive material, humidity sensitive material, ultraviolet excited fluorescence material and infrared excited fluorescence material in high boiling point solvent containing UV resistant agent and antioxidant, then adding emulsifier and protective colloid to obtain emulsion solution, and adopting the in-situ polymerization method to obtain the anti-counterfeiting material with microcapsule structure. The microcapsule structure of the invention can isolate the air and the wall of the microcapsule can reduce the light transmission, thus improving the weather resistance and light resistance of the anti-counterfeiting material and prolonging the use validity of the product. The material is a microcapsule aqueous solution so that the material is completely applicable to the coating method of the currently existing water-based paint, removes apprehensions in areas of safety, health and environmental protection, thoroughly solves the defect of the complicated solvent-based (oily material) coating and processing method, satisfies the anti-counterfeiting demand and can be applied in papers, cloth and film materials in large.
Owner:张世智
Preparation method of multilayer-structure nano fiber composite membrane for filtering particulates in air
InactiveCN106541683AHigh particle filtration efficiencyImprove dirt holding capacityDispersed particle filtrationSynthetic resin layered productsFiberParticulates
The invention relates to the technical field of manufacturing of fiber composite membranes, particularly a preparation method of a multilayer-structure nano fiber composite membrane for filtering particulates in air. The preparation method comprises the following steps: (1) sequentially spinning a first nano fiber membrane layer to nth nano fiber membrane layer onto a matrix by electrostatic spinning, wherein n is a whole number ranging from 1 to 50; (2) covering a nano fiber membrane protective layer on the upper surface of the nth nano fiber membrane layer and the exposed surfaces of all the nano fiber membrane layers to obtain a semifinished product; and (3) compounding the semifinished product to obtain the product. The method can enhance the uniformity and mechanical properties of the filter membrane, and can also enhance the barrier efficiency of the filter membrane for particulates and relatively lower the air drag.
Owner:东莞巨微新材料科技有限公司 +2
Silicon quantum dot/graphene/silicon heterostructure-based photoelectric sensor
ActiveCN105679857AEasy to manufactureEasy to measureMaterial nanotechnologySemiconductor devicesUltraviolet lightsSilicon dioxide
The invention discloses a silicon quantum dot / graphene / silicon heterostructure-based photoelectric sensor. The photoelectric sensor is sequentially provided with a bottom electrode, an n-type silicon substrate and a silicon dioxide isolation layer from bottom to top, wherein a window is formed in the silicon dioxide isolation layer; the n-type silicon substrate in the window is exposed; the silicon dioxide isolation layer is provided with a top electrode; a single graphene layer and a silicon quantum dot film layer overlay the top electrode; and the single graphene layer is in contact with the n-type silicon substrate in the window to form a graphene / silicon schottky junction. The photoelectric sensor disclosed by the invention is optimization and improvement on the basis of the schottky structure, has the advantages of the schottky junction, utilizes silicon quantum dots as a response increase layer, can effectively improve the responsivity of a device in the whole band, especially the responsivity of ultraviolet and visible parts, and solves the problem that a traditional silicon-based PIN junction is low in response to ultraviolet light detection. The sensor can work at an extremely low reverse bias voltage, and is a low-energy device with a considerable application prospect.
Owner:ZHEJIANG UNIV
Method and edger for machining of special-shaped glass beveled edges
ActiveCN104097122AImprove work efficiencyGood prospects for marketizationEdge grinding machinesGrinding carriagesEngineeringControl system
The invention discloses an edger for machining of special-shaped glass beveled edges. The edger comprises a frame, a horizontal bottom workbench, a horizontal upper workbench, a horizontal rotating workbench, a pneumatic fixture, an angle table, a grinding head unit, a circuit control system, a protective housing, an oil circuit lubricating system, and a machining cooling system. The edger is applicable to machining special-shaped glass beveled edges and is also applicable to machining of straight edges, round edges and duckbill edges for special-shaped glass; meanwhile, the edger is applicable to the machining of beveled edges, straight edges, round edges and duckbill edges for glass which has a regular geometric outline. Compared with the prior art, the edger has the advantages that the edger is manufactured by means of the digital technology, machining of the special-shaped glass beveled edges no longer needs manufacturing of copying plates, work efficiency is improved, time, labor and materials are saved, and the edger has excellent market prospect.
Owner:东莞市众度机械设备有限公司
Cleaning agent for machinery for food industry
InactiveCN1970713AGood biodegradabilityLow application costNon-ionic surface-active compoundsOther dairy technologyAdjuvantPOLYOXYETHYLENE ETHER
The invention discloses a food mechanic abluent of on-site food machine and pipe line, which comprises the following parts: 1-8% at least one component of proteinase, lipase or amylase, alkyl glycoside as surface activator, food-grade C12-C18, water loss sorbitol acid grease, polyoxyethylene water loss sorbitol acid grease, 0.5-1% at least one component of polyglycerol fatty acid ester or geoceric acid polyoxyethylene ester, 10-75% at least one component or two components of sodium carbonate or sodium hydrogen carbonate of alkali adjuvant.
Owner:沈阳宏迪科技有限公司
Method for detecting TMAO (trimethylamine oxide) by enzyme method and application thereof
ActiveCN108507984AHigh sensitivityRapid and stable detectionFluorescence/phosphorescenceNad dependent dehydrogenaseFluorescence
The invention discloses a method for detecting TMAO (trimethylamine oxide) by an enzyme method and application thereof. The detection method utilizes a multi-enzyme combination system containing TMAOTDM (demethylase), FADH (formaldehyde dehydrogenase), FDH (formate dehydrogenase) and diaphorase, so as to perform fluorescence determining on the TMAO; the method can be used for developing a TMAO detection kit. The method for detecting the TMAO by the enzyme method has the advantages that the defect of failure to directly determine based on dehydrogenase and diaphorase coupling because of no participation of NAD dependence dehydrogenase in the metabolism path of the TMAO is overcome; by adopting the multi-enzyme coupling of TDM-FADH-FDH-diaphorase, the system for fluorescence determining ofthe TMAO is constructed, and one TMAO molecule is decomposed into two fluorescence signals; the sensitivity is high, the detection is rapid and stable, the repeatability is good, the operation is simple and convenient, and the cost is lower.
Owner:THE SECOND HOSPITAL OF SHANDONG UNIV
Spiro indolone compounds, a preparing method, a medicine composition and uses of the compounds
ActiveCN106800566AGood killing effectHigh selectivityOrganic active ingredientsOrganic chemistryHuman cancerMda mb 231
Spiro indolone compounds, a preparing method, a medicine composition and uses of the compounds are disclosed. In particular, the invention provide spiro indolone compounds shown as a formula I or II, a preparing method of the spiro indolone compounds and uses of the compounds in preparation of antitumor medicines. The compounds have a spiro indolinone skeleton, and the preparing method and potential uses of the compounds have not been reported before. The compounds have obvious killing functions for human cancer cells, particularly a human breast cancer cell strain MDA-MB-231, a human cervical cancer cell strain HeLa or a human lung cancer cell strain A549, have high selectivity, have potentials as novel antitumor medicines and have a good market prospect.
Owner:SHANGHAI INST OF ORGANIC CHEMISTRY - CHINESE ACAD OF SCI
Solid super acid and application thereof in preparing 4,4'-diaminodiphenylmethane
InactiveCN102059129ALow costEasy to prepareMolecular sieve catalystsOrganic compound preparationPulverized fuel ashNuclear chemistry
The invention discloses a solid super acid and application thereof in preparing 4,4'-diaminodiphenylmethane. The solid super acid is prepared from waste pulverized fuel ash of a coal fired power plant. A preparation method of the solid super acid comprises the steps of: treating the pulverized fuel ash, treating screenings, dipping the screenings into in a 10mol / l sulfuric acid solution for 1-10 hours, carrying out suction filter, and sintering filter residues at 450-650 DEG C for 4 hours to obtain the solid super acid. The invention not only provides a new approach to the utilization of the waste pulverized fuel ash, but also solves the problem of environmental pollution caused by the pulverized fuel ash, and has important social and economic significance. Since the solid super acid provided by the invention has an extremely low cost and a simple preparation method, the prepared solid super acid has low price and good marketization prospect.
Owner:河南省华鼎高分子股份有限公司
Anti-static wheat-straw wood-plastic composite material and preparation method thereof
The invention provides an anti-static wheat-straw wood-plastic composite material and a preparation method thereof. The anti-static wheat-straw wood-plastic composite material is characterized by being prepared from, by weight, 20-70 parts of lignocellulosic material, 50-150 parts of polypropylene resin, 3-10 parts of coupling agent, 5-30 parts of antistatic agent, 2-6 parts of lubricating agent, 10-30 parts of calcium carbonate, 0.1-1 part of antioxidant and 3-5 parts of other additives. The preparation method comprises the steps that the lignocellulosic material, wood-plastic powder and the coupling agent are put in a high-speed mixer, thermal stirring and mixing are conducted to be uniform, and a thermal mixed material is obtained; the thermal mixed material is put in a cooling mixer to be cooled, the antistatic agent, the lubricating agent and other additives are added into the cooling mixer by weight after the temperature of the thermal mixed material is decreased to 40 DEG C, all the materials are put into a screw extruder after being stirred and mixed to be uniform, extrusion is conducted, and the anti-static wheat-straw wood-plastic composite material is obtained. According to the wood-plastic composite material, waste wheat straw serves as the lignocellulosic raw material, and by means of pretreatment and formula optimization, the obtained wood-plastic composite material is excellent in property and good in marketization prospect.
Owner:ANHUI GUOFENG WOOD PLASTIC COMPOSITE
Monofluoroalkyl-containing compound and its preparation method and use
ActiveCN106278847AImprove compatibilityStrong broad spectrumSilicon organic compoundsCarboxylic acid nitrile preparationNickel saltSolvent
The invention discloses a monofluoroalkyl-containing compound and its preparation method. The preparation method comprises that in a solvent, in the presence of an alkali, an additive, a ligand and a catalyst, a compound A and a compound B undergo a suzuki coupling reaction to produce a compound C. The catalyst is a nickel salt with a chemical formula of NiLnCl2, NiLnBr2, NiLnI2 or NiQ2. mH2O. The preparation method introduces monofluoroalkyl through a one-step reaction, is efficient and simple, has good function group compatibility and good broad spectrum activity, is free of a highly toxic reagent, has simple and safe aftertreatment processes, is environmentally friendly, utilizes a small amount of a cheap catalyst, allows mild reaction conditions, realizes a high reaction conversion rate, a high yield and a low production cost and is suitable for industrial production.
Owner:SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
Single-component polyurethane grouting material foamed when meeting water, and preparation method and application thereof
InactiveCN106866917AQuick water shutoffImprove adhesionOther chemical processesPolymer sciencePtru catalyst
The invention discloses a single-component polyurethane grouting material foamed when meeting water, and a preparation method and an application thereof. The invention provides the preparation method for the single-component polyurethane grouting material foamed when meeting water, wherein the preparation method comprises the following steps: step 1, carrying out a polymerization reaction of hydrophilic polyether polyol and an organic polyisocyanate compound, to obtain a polyurethane prepolymer, wherein the hydrophilic polyether polyol has the functionality degree of 3-4 and the number-average molecular weight of 5000-7000; and step 2, stirring and mixing the polyurethane prepolymer obtained in the step 1 with an organic cosolvent, a surfactant, a catalyst and a plasticizer, to obtain the single-component polyurethane grouting material foamed when meeting water. The polyurethane grouting material forms elastic foams after being reacted when meeting water, after water is volatilized, the polyurethane grouting material is naturally shrunk to a certain extent, the foam bodies are still intact, the polyurethane grouting material can absorb water to swell when meeting water again, and a secondary water plugging effect is achieved; therefore, the polyurethane grouting material can rapidly plug water, is foamed when meeting water, and has good cohesiveness and good marketization prospects.
Owner:SHANGHAI DONGDA CHEM
Pyrazolopyrimidine derivative, preparation method, pharmaceutical composition and application
InactiveCN106146511AEnhanced inhibitory effectGood inhibitory activity in vitro and in vivoOrganic active ingredientsOrganic chemistryBruton's tyrosine kinaseIn vivo
The invention discloses a pyrazolopyrimidine derivative, a preparation method, a pharmaceutical composition and application. The invention provides the pyrazolopyrimidine derivative as shown in a formula I and stereoisomer or solvate or pharmaceutically acceptable salts or active metabolite or prodrug thereof. The pyrazolopyrimidine derivative as shown in the formula I has good inhibitory activity on Bruton's tyrosine kinase (Btk) and particularly has good in vitro and in vivo inhibitory activity on growth of tumor cells, and a good marketization prospect is achieved. Please see the formula I in the description.
Owner:ARROMAX PHARMATECH
Self-crosslinked oxidation and high-efficient dispersion with water polyurethane and production thereof
ActiveCN100475874CGood coating performanceGood prospects for marketizationPolyesterPolyurethane dispersion
Owner:广东天银实业有限公司
Digital microarray organ chip and application thereof
PendingCN108641931AHigh simulationImprove throughputBioreactor/fermenter combinationsBiological substance pretreatmentsMicrosphereEngineering
The invention provides a digital microarray organ chip. The digital microarray organ chip comprises a top plate, a PET film and a bottom plate. An upper chamber is formed in the top plate, a lower chamber is formed in the bottom plate, and the upper chamber and the lower chamber are consistent in shape and are separated through the PET film; microarray holes used for microsphere culturing and digital detecting are arrayed in the lower chamber of the bottom plate; and an input pipeline and an output pipeline are connected to the top plate and communicate with the upper chamber. The digital microarray organ chip has the characteristics of being biomimetic, high in throughput and low in cost, and has good prospects in the aspects of clinical application of drug screening, disease modeling, cytotoxicity testing and the like.
Owner:ZHEJIANG UNIV
Rhizoma fagopyri dibotryis extract, preparation methods and applications of rhizoma fagopyri dibotryis extract and skin external-use preparation containing rhizoma fagopyri dibotryis extract
InactiveCN106265175AConvenient whiteningImprove anti-agingCosmetic preparationsToilet preparationsMedicineSolvent
The invention discloses a rhizoma fagopyri dibotryis extract, preparation methods and applications of the rhizoma fagopyri dibotryis extract and a skin external-use preparation containing the rhizoma fagopyri dibotryis extract. The preparation method I of the rhizoma fagopyri dibotryis extract comprises the following steps: 1, extracting a mixture formed by fagopyrum dibotrys powder and ethanol aqueous solution with the volume concentration being 50-80% for 0.5-5 h at 10-35 DEG C, carrying out solid-liquid separation to obtain a filtrate, and removing a solvent from the filtrate, thus obtaining a rhizoma fagopyri dibotryis crude extract, wherein the mass-to-volume ratio of the fagopyrum dibotrys powder to the ethanol aqueous solution is 1:8-1:15 g / mL; The preparation method II of the rhizoma fagopyri dibotryis extract comprises the following steps: loading the rhizoma fagopyri dibotryis crude extract obtained in the method I to a macroporous resin packing column, carrying out elution by adopting a solvent I, a solvent II and a solvent III sequentially, respectively collecting the eluants, and removing the solvents to obtain a solvent elution part A, a solvent elution part B and a solvent elution part C. The rhizoma fagopyri dibotryis extract has the good efficacies of whitening the skin, resisting ageing and resisting oxidation, thus having a good market prospect.
Owner:JALA GROUP CORPORATION
Solid super acid and application thereof in preparing 4,4'-diaminodiphenylmethane
InactiveCN102059129BLow costEasy to prepareMolecular sieve catalystsOrganic compound preparationPulverized fuel ashNuclear chemistry
Owner:河南省华鼎高分子股份有限公司
Composite material with weak negative dielectric constant and preparation method thereof
ActiveCN107868397ATuning Dielectric PropertiesHas a weakly negative dielectric constantEpoxyEpoxy resin composite
The invention belongs to the technical field of composite materials and particularly relates to a composite material with a weak negative dielectric constant and a preparation method thereof. The preparation method solves the problems of the prior art. The preparation method has simple processes, realizes a low cost, is suitable for industrial production and can produce a composite material with weak negative dielectricity and low frequency dispersion. The composite material with weak negative dielectricity utilizes epoxy resin as a matrix and graphene as a functional body. The preparation method utilizes mechanical ball milling and hot press forming processes and prepares a graphene / epoxy composite material.
Owner:德州迈特新材料研究中心 +1
Small-caliber circular knitting machine plaiting device
The invention discloses a small-caliber circular knitting machine plaiting device. The small-caliber circular knitting machine plaiting device is characterized by comprising a supporting rod fixed to the working face of a needle cylinder, a height adjusting device installed at the top end of the supporting rod, a rotation adjusting device connected with the height adjusting device, and a plaiting and yarn guiding rod connected with the rotation adjusting device. A plaiting and yarn guiding assembly is installed on the plaiting and yarn guiding rod and comprises at least one yarn guiding triangular support installed on the upper surface of the plaiting and yarn guiding rod, and a yarn guiding nozzle connected with the tail end of the plaiting and yarn guiding rod. Multiple yarn guiding holes arranged in parallel are formed in the head end of the yarn guiding nozzle. The small-caliber circular knitting machine plaiting device has the advantages that the structure is simple, operation is easy, control is stable, it can be achieved that yarn laying positions and angles are adjustable, multiple pieces of yarn (backing yarn and surface yarn) are introduced at the same time to meet the knitting requirements of different plaited fabrics, the application range is wide, and large-scale production and application are convenient.
Owner:NANTONG TEXTILE & SILK IND TECH RES INST +1
Broadspectrum efficient Klebsiella pneumoniae KL1 for decoloring azo dyes and application of broadspectrum efficient Klebsiella pneumoniae KL1
ActiveCN106754566AEfficient decolorizationSimple nutritional requirementsBacteriaWater contaminantsK pneumoniaeDyeing wastewater
The invention relates to broadspectrum efficient Klebsiella pneumoniae KL1 for decoloring azo dyes and application of the broadspectrum efficient Klebsiella pneumoniae KL1. The 16S rRNA sequence of the KL1 is shown in SEQ ID NO: 1. The KL1 provided by the invention can be used for efficiently decoloring a variety of azo dyes, the 24h decoloring ratio reaches 90% or more, the nutritional requirements are simple, the adaptable culture conditions are relatively wide, the culture temperature is 30 DEG C to 40 DEG C, and a decoloring action can be efficiently exerted in a pH range of 4.0 to 9.0, so that the KL1 can be applied to the treatment of azo printing and dyeing wastewater and contaminated soil and has the advantages of low cost, convenience in use, good removal effect, and the like, thereby being good in market prospect.
Owner:上海泽耀环保科技有限公司
Metal oxide-hexanehexol compound heat stabilizer, preparation method and application in PVC
The invention discloses a metal oxide-hexanehexol compound heat stabilizer, a preparation method and application in PVC. The heat stabilizer is composed of compounds generated after hexanehexol reacts with metal oxide, and the compounds comprise hexanehexol metal salt, the metal oxide, the hexanehexol and dehydrated hexanehexol. The synthesized metal oxide-hexanehexol compound heat stabilizer is non-toxic and environmentally friendly, low in melting point and easy to disperse, the compatibility between the heat stabilizer and a PVC base body is good, initial coloration is good, long-term stability is good, lubrication performance is good, and the problem that an existing environment-friendly PVC heat stabilizer is poor in heat stabilizing effect is solved. When zinc oxide-mannitol compounds prepared under preferred conditions are applied to PVC, heat stabilizing time can be 240 minutes, and the problem that the existing environment-friendly PVC heat stabilizer is poor in heat stabilizing effect is solved.
Owner:ZHEJIANG UNIV +1
Method for preparing self-cross linking type water-based fluorine-contained acrylic resin and polyurethane hybrid
Owner:JIANGSU BLUESTAR GREEN TECH
Self-assembled gap-adjustable gold nano-film preparation method
ActiveCN112176296ASimple processEasy to operateMaterial nanotechnologyVacuum evaporation coatingBiocompatibilityMaterials science
The invention discloses a self-assembled gap-adjustable gold nano-film preparation method. The self-assembled gap-adjustable gold nano-film preparation method comprises the following steps that a substrate is cleaned, and surface treatment modification is carried out by using plasma to enable the substrate to show high adhesive force; and then metal Au is taken as a sputtering target material, low-vacuum sputtering equipment is adopted, the vacuum degree is controlled to be smaller than or equal to 10 Pa, oxygen is used as working gas, the distance between the target material and the substrateis adjusted to range from 3 cm to 7 cm, the discharge current is adjusted to range from 5 mA to 10 mA, and preparation of a gold nano-film is completed after a period of sputtering time. The method is simple in process, easy in process control, low in cost, high in deposition rate, high in binding force and capable of realizing large-scale commercial production. By adjusting the environment pressure and the sputtering current and setting the sputtering distance and time, nanoparticles are self-assembled on the surface of the substrate to form the ordered two-dimensional nano-film, and the gaps between the nanoparticles are adjustable. A prepared nano-gold disc is smooth in surface and uniform in thickness, has excellent optical, electric and heat conduction characteristics and biocompatibility, and is high in stability and good in repeatability.
Owner:SHANDONG UNIV OF TECH
A photoelectric sensor based on silicon quantum dots/graphene/silicon heterostructure
ActiveCN105679857BEasy to manufactureEasy to measureMaterial nanotechnologySemiconductor devicesUltraviolet lightsSilicon dioxide
Owner:ZHEJIANG UNIV
Carbon nanotube-graphite-polyvinylidene fluoride ternary composite material with negative dielectric property and preparation method thereof
The invention discloses a carbon nanotube-graphite-polyvinylidene fluoride ternary composite material with the negative dielectric property and a preparation method thereof. The composite material isformed by uniformly compounding carbon nanotubes, graphite and polyvinylidene fluoride; the mass sum of the carbon nanotubes and the graphite accounts for 16-20% of the mass percentage of the ternarycomposite material, and the composite material comprises the carbon nanotubes, graphite and the balance polyvinylidene fluoride, wherein the mass ratio of the carbon nanotubes to the graphite is 1:1-1:10. The method includes the following steps that 1, carbon nanotube powder, graphite powder and polyvinylidene fluoride powder are weighed respectively; 2, the powder is mixed and dispersed evenly; 3, the mixed powder is placed in a mold for cold pressing. According to the ternary composite material, a novel functional variable is introduced on the basis of a traditional two-element composite material, so that the composite material has the weak negative dielectric property, and the value of the negative dielectric constant is easier to regulate and control.
Owner:SHANGHAI MARITIME UNIVERSITY
Ultrasonic flowmeter
ActiveCN105181044AHigh measurement accuracyImprove rectification effectVolume/mass flow measurementEngineeringMeasurement precision
The invention discloses an ultrasonic flowmeter which belongs to the technical field of fluid flow measuring equipment. The flowmeter comprises an outer housing. A flowmeter head is arranged outside the outer housing. The inner part of the outer housing is coaxially provided with an inner housing. A flow gap is arranged between the outer housing and the inner housing. Two ends of the flow gap are respectively provided with a first reflector plate and a second reflector plate. The first reflector plate and the second reflector plate are respectively provided with flow channels which extend axially, wherein the number of the flow channels on the first reflector plate is same with that of the flow channels on the second reflector plate. The flow channels on the first reflector and the second reflector which are arranged oppositely are coaxially arranged. The end of the first reflector plate is provided with a first reflection oblique surface which is conically arranged. The end of the second reflector plate is provided with a second reflection oblique surface which is conically arranged. A first probe and a second probe are separately arranged on the outer housing. The first probe and the second probe are connected with the flowmeter head. The ultrasonic flowmeter overcomes technical problems of low measurement precision and no wide enough measurement range in a time-difference-method ultrasonic flowmeter. The ultrasonic flowmeter provided by the invention can be widely applied in measurement for the flow speed of the fluid.
Owner:ZHEJIANG TIANXIN INSTR TECH CO LTD
Multiple reversible color change microcapsule anti-counterfeiting material and preparation method and application thereof
InactiveCN101724392BGood weather resistanceGood light fastnessOther chemical processesLuminescent/fluorescent substance additionIn situ polymerizationFilm material
Owner:张世智
Lagotis brevituba extract, preparation methods and application thereof, and externally-applied extract-containing agent for skins
InactiveCN106266582AConvenient whiteningImprove anti-agingCosmetic preparationsToilet preparationsLagotis brevitubaElution
The invention discloses a Lagotis brevituba extract, preparation methods and an application thereof, and an externally-applied extract-containing agent for skins. The preparation method 1 of the Lagotis brevituba extract comprises the following steps: 1, extracting a mixture formed by Lagotis brevituba powder and an ethanol-water solution with the volume concentration of 50-80% at 10-35 DEG C for 0.5-5 h, carrying out solid-liquid separation to obtain a filtrate, and removing a solvent from the filtrate, wherein a mass / volume ratio of the Lagotis brevituba powder to the ethanol-water solution of 1:8-1:15 mg / mL. The preparation method 2 of the Lagotis brevituba extract comprises the following steps: adding crude Lagotis brevituba extract obtained in the method 1 to a macro-porous resin packed column, sequentially eluting with a solvent I, a solvent II and a solvent III, and respectively collecting obtained eluates, and removing the solvents to obtain a solvent elution part A, a solvent elution part B and a solvent elution part C. The Lagotis brevituba extract has good whitening, ageing preventing and oxidation preventing effects, and has good market prospect.
Owner:JALA GROUP CORPORATION
Heteroaromatic amide compound and preparation method and application thereof
ActiveCN113717148AAntiproliferative activityHigh selectivityOrganic active ingredientsOrganic chemistryDiseaseProstate cancer cell
The invention discloses a heteroaromatic amide compound and a preparation method and application thereof. According to the heteroaryl amide compound provided by the invention, a preliminary activity research shows that the compound has selectivity to STAT3 and also has very strong tumor cell proliferation inhibition activity; the compound can be used as a series of novel STAT3 inhibitors and can be used for preparing drugs for treating corresponding diseases. The compound has obvious killing effect on human cancer cells, especially human breast cancer cell line MDA-MB-231, human prostate cancer cell line PC-3 and human prostate cancer cell line DU-145, has the potential of being prepared into novel antitumor drugs, and has better market prospect.
Owner:SHANGHAI INST OF PHARMA IND CO LTD +1
Method for synchronously removing ammonia nitrogen in river sediment and overlying water body by using ammonia nitrogen release increasing agent
ActiveCN113024052ARealize integrated governanceEliminates the risk of re-release into overlying water bodiesSludge treatmentWater contaminantsRaw materialDenitrification
The invention relates to a method for synchronously removing ammonia nitrogen in river sediment and an overlying water body by using an ammonia nitrogen release increasing agent, which comprises the following steps: adding the ammonia nitrogen release increasing agent into the sediment to promote the ammonia nitrogen in the sediment to be quickly released into the overlying water body, and denitrifying the overlying water body by combining a microbial aeration method to realize synchronous denitrification of the sediment and the overlying water body. The ammonia nitrogen release increasing agent is iron-loaded biomass charcoal. Compared with the prior art, the method has the following advantages: (1) nitrogen in the overlying water body and the bottom mud is synchronously removed, and integrated treatment of the overlying water body and the bottom mud of the riverway is realized; (2) compared with a method of applying an ammonia nitrogen release inhibiting agent to the bottom mud, the risk that ammonia nitrogen in the bottom mud can be released again to enter an overlying water body under the disturbance of external environmental factors can be thoroughly eliminated; and (3) the used materials are low in preparation cost, simple in process and wide in raw material source, and have a better market prospect.
Owner:UNIV OF SHANGHAI FOR SCI & TECH +1
Low mooney rubber plastic body and double screw plasticizing production method thereof
The invention provides a low mooney rubber plastic body and a double screw plasticizing production method thereof. Waste tire rubber, a peptizer, a softener, an activator and a lubricant are mixed and smashed to obtain rubber powder; the rubber powder, a water-soluble softener and an activator 480 are plasticized on a double screw plasticizing machine to obtain a material A; the material A and tall oil are subjected to open milling of an open mill and extruding of an extruding machine after internal mixing of an internal mixer, and the low mooney rubber plastic body is obtained. The rubber plastic body has low mooney, high strength, high elongation and low hardness performance. The technical formula and the process are simple, the manufacturing cost is low, the energy consumption is low, the efficiency is high, refining and plastication processes is reduced, the labor intensity is greatly reduced, and the production space is saved.
Owner:李晓武 +1
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