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289 results about "Membrane coat" patented technology
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Any of several different proteinaceous coats that can associate with membranes. Membrane coats include those formed by clathrin plus an adaptor complex, the COPI and COPII complexes, and possibly others. They are found associated with membranes on many vesicles as well as other membrane features such as pits and perhaps tubules. [GOC:mah]
Filter element for embolic protection device
InactiveUS7491215B2Avoid distortionPrevent collapseHaemofiltrationUltrafiltrationEmbolic Protection DevicesDistal portion
A collapsible filter element for a transcatheter embolic protection device comprises a collapsible filter body which is movable between a collapsed stored position for movement through a vascular system and an expanded position for extension across a blood vessel such that blood passing through the blood vessel is delivered through the filter element. A proximal inlet portion of the filter body has one or more inlet openings sized to allow blood and embolic material enter the filter body and a distal outlet portion of the filter body has a plurality of outlet openings sized to allow through-passage of blood, but to retain embolic material within the filter body. The filter body is at least partially of laminate construction comprising a membrane coated with a coating which is biocompatible, the thickness of the coating being from 4% to 40% of the thickness of the membrane. The coating may be of hydrophilic material. To facilitate retrieval of captured embolic material the distal portion and / or an intermediate portion of the filter membrane may be stretchable. The filter body may have regions of varying hardness or stiffness.
Owner:SALVIAC
Fluorescent micro-ball immune chromatography test paper strip for detecting residual animal medicine and preparing method thereof
The invention discloses a test paper strip for the fluorescent bead immunochromatography of veterinary medicine remained in a detected sample and a preparation method thereof. A filter paper, a sample pad, a fiberglass membrane, a pyroxylin membrane and water sucking paper are sequentially stuck on a base plate in related joint; fluorescent beads are sprayed on the pyroxylin membrane for marking a veterinary medicine resistant molecule monoantibody; the pyroxylin membrane coated with a veterinary medicine molecule holoantigen is used as a detection region; the pyroxylin membrane coated with an anti-mouse antibody is used as a quality control region; and the test paper strip is prepared through the following steps: (1) the preparation of the pyroxylin membrane; (2) the preparation of a fluorescent bead pad; and (3) the assembling of the test paper strip. In the detecting process, emitted spectrums pass through a proper optical filter device; and all the emitted spectrums are collected through CCD scanning technology, are congregated, are multiplied and are analyzed through a fluorescence analyzer and relevant software to obtain a quantized fluorescence signal, thereby realizing quantitative detection. The test paper strip is mainly used for the qualitative detection and the quantitative detection of all the veterinary medicine classes in food safety detection.
Owner:WUXI ZODOLABS BIOTECH
Covered stent
The invention discloses a covered stent, which comprises a support structure and a tectorial membrane unit, and is characterized in that: the tectorial membrane unit comprises an inner-layer tectorial membrane and an outer-layer tectorial membrane which coats the support structure; the outer-layer membrane coats on the outer side of the inner-layer tectorial membrane; the inner-layer tectorial membrane is a biological membrane with good blood compatibility, and the outer-layer tectorial membrane is a biological membrane which is easy to induce the formation of thrombus; the inner-layer tectorial membrane contacting blood has good blood compatibility, can effectively reduce the formation of the thrombus, and maintains normal blood flowing channels; and the outer-layer tectorial membrane can induce the formation of the thrombus in aneurysm or thrombus of bleeding parts, promotes the aneurysm to be quickly activated and reduced, reduces the mass effect in vivo, simultaneously effectively adheres endothelial cells, promotes differentiation and proliferation of cells, quickens the endothelialization of lesion parts of vessels, and can more effectively treat vascular diseases such as the aneurysm and the like.
Owner:MICROPORT NEUROTECH SHANGHAI
Lithium ion battery diaphragm with special structure and preparation method thereof
The invention relates to the field of lithium ion battery diaphragm preparation and relates to an inorganic coating high-temperature resisting type lithium ion battery diaphragm with a special structure and the preparation method thereof. The lithium ion battery diaphragm comprises a porous flexible basement membrane and coatings coated on the two sides of the basement membrane, and composites of inorganic particles and organic microsphere are contained in the coatings. The inorganic particles and the organic microspheres are mixed into the solvent according to a certain proportion, homogeneous membrane coating slurry can be obtained, the slurry is coated on the two surfaces of the flexible and organic basement membrane, and then, under a certain temperature, the composite diaphragm with favorable performance is obtained through the pressing of a hot roller. In the inorganic coating lithium ion battery diaphragm provided by the invention, bonding agent is not directly added into the membrane coating slurry, damages to the microstructure of the diaphragm caused by the bonding agent can be avoided, the high-temperature resisting performance and the electrolyte infiltrating performance of the diaphragm are greatly improved, and the composite lithium ion battery diaphragm prepared by the invention has the advantages of superior comprehensive performance, easiness in big-scale and large-dimension production and the like.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Production of inorganic-phase variable composite material of membrane-coated porous adsorptive
InactiveCN1896173AHigh strengthImprove stabilityHeat-exchange elementsFilm-forming agentPhase variable
Production of porous adsorptive inorganic phase-variable composite material with film-coated is efficient. The composite material consists of inorganic hydrous salt 73-98 proportion, agent for preventing phase separation 0.3-3 proportion, and sub-cool resisting agent 0.5-2 proportion. The process is carried out by combing agent for preventing phase separation, mixed absorbing it with mineral porous material in proportion of 1:0.1-1, breaking it into grain with granular diameter=0.1mm-20um, and coating granular phase-variable material by film-forming agent to obtain the final product. It is non-volatile, has stable performance, better heat conductivity and mechanical strength.
Owner:浙江华特实业集团华特化工有限公司
Method to manufacture composite polymer electrolyte membranes coated with inorganic thin films for fuel cells
InactiveUS20070231655A1Reduce conductivityLow methanol permeabilityMaterial nanotechnologyFinal product manufactureSilicon oxideMethanol crossover
The present invention relates to a method for manufacturing composite polymer electrolyte membranes coated with inorganic thin films for fuel cells using a plasma enhanced chemical vapor deposition (PECVD) method or a reactive sputtering method, so as to reduce the crossover of methanol through polymer electrolyte membranes for fuel cells and enhance the performance of the fuel cells. The manufacturing method of composite polymer electrolyte membranes coated with inorganic thin films for fuel cells according to the present invention is characterized to obtain composite membranes by coating the surface of commercial composite polymer electrolyte membranes for fuel cells with inorganic thin films using a PECVD method or a reactive sputtering method. The inorganic materials to form the inorganic thin films are chosen one or more from the group comprising silicon oxide (SiO2), titanium oxide (TiO2), zirconium oxide (ZrO2), zirconium phosphate (Zr(HPO4)2), zeolite, silicalite, and aluminum oxide (Al2O3). The present invention, by coating the polymer electrolyte membranes for fuel cells with inorganic thin films via a PECVD method or a reactive sputtering method, reduces the methanol crossover sizably without seriously reducing the ionic conductivity of polymer electrolyte membranes, thereby, when applied to fuel cells, realizes a high performance of fuel cells.
Owner:KOREA INST OF SCI & TECH
Graphene oxide filters and methods of use
A system and device for filtering fluids using graphene oxide (GO) is provided. GO-based filters may be used for the efficient removal of microorganisms from organic and aqueous liquids and may be used to prevent fuel biodeterioration. Functionalization of graphene oxide with reactive oxygen functional groups provides physical properties to the GO including high solubility in polar solvents, good colloidal properties, low production costs, low toxicity, and a large surface area which can be decorated with antimicrobial agents including nanosilver. GO may be used as a filtration media for efficient removal of bacteria and to remove small amounts of water from hydrocarbon fuels. The GO filter media may be made of a plurality of GO particles, a structural core coated with GO, a non-porous structural membrane coated with GO, or a filtering membrane coated with GO. A method for sampling impurities found in an environmental sample is also provided.
Owner:UNIV OF DAYTON +1
Graphene oxide filters and methods of use
A system and device for filtering fluids using graphene oxide (GO) is provided. GO-based filters may be used for the efficient removal of microorganisms from organic and aqueous liquids and may be used to prevent fuel biodeterioration. Functionalization of graphene oxide with reactive oxygen functional groups provides physical properties to the GO including high solubility in polar solvents, good colloidal properties, low production costs, low toxicity, and a large surface area which can be decorated with antimicrobial agents including nanosilver. GO may be used as a filtration media for efficient removal of bacteria and to remove small amounts of water from hydrocarbon fuels. The GO filter media may be made of a plurality of GO particles, a structural core coated with GO, a non-porous structural membrane coated with GO, or a filtering membrane coated with GO. A method for sampling impurities found in an environmental sample is also provided.
Owner:UNIV OF DAYTON +1
Chitosan-modified pH responsive medicine-loading controlled release material and preparation method thereof
InactiveCN103920153AInhibition releaseSimple pore volumePharmaceutical non-active ingredientsControlled releaseMesoporous silica
The invention relates to a chitosan-modified pH responsive medicine-loading controlled release material and a preparation method thereof. The material consists of mesoporous silicon dioxide nano particles capable of loading medicines in mesoporous ducts and a chitosan-polymerized electrolyte membrane coating the mesoporous silicon dioxide nano particles. The preparation method comprises the following steps: dispersing the mesoporous silicon dioxide nano particles capable of loading medicines in the mesoporous ducts into chitosan sol, and stirring, separating, washing and drying to obtain the chitosan-modified pH responsive medicine-loading controlled release material.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Alumina membrane coated activated carbon and preparation method thereof
InactiveCN101890333APore structure properties are not affectedHigh mechanical strengthCatalyst carriersOther chemical processesActivated carbonAluminium isopropoxide
The invention provides alumina membrane coated activated carbon and a preparation method thereof. The alumina membrane with the thickness of between 10 and 50nm is coated on the surface of the activated carbon. The preparation method comprises the following steps of: 1) hydrolyzing aluminum isopropoxide, adding nitric acid, refluxing at the temperature of between 90 and 100 DEG C, and preserving temperature to obtain an alumina sol; 2) soaking the activated carbon in the alumina sol for dipping, mixing, drying, heating the mixture to 400 DEG C in a velocity of 40 DEG C / h for calcining, and cooling the mixture to normal temperature in the velocity of 40 DEG C / h. The preparation method has simple process, and the prepared alumina membrane coated activated carbon has the advantages of not influencing the property of the porous structure of the activated carbon and greatly improving the mechanical strength of the activated carbon.
Owner:ZHEJIANG UNIV
Method and apparatus for membrane deposition
ActiveUS20080237919A1Evenly distributedSemi-permeable membranesMembranesPressure differenceHoneycomb structure
A method and apparatus for applying a uniform membrane coating to a substrate, such as a honeycomb structure, having a plurality of through-channels, wherein the through-channels have an average diameter of less than or equal to 3 mm. The method includes providing a liquid precursor comprising membrane-forming materials to the substrate and applying a pressure differential across the substrate. The pressure differential causes the liquid precursor to travel uniformly through the through-channels, depositing the membrane-forming materials on the walls of the through-channels and forming the membrane on the walls of the through-channels. The apparatus includes a chamber capable of holding the substrate and of maintaining a pressure differential across the plurality of through-channels.
Owner:CORNING INC
Method for preparing coating with metal surface corrosion inhibition and self-repair functions
InactiveCN101613543AShape is not limitedUnlimited sizeAnti-corrosive paintsTectorial membraneLayer by layer self assembly
The invention belongs to the field of anticorrosion materials, and relates to a green and environment-friendly method for protecting metal from corroding, which can particularly control metal corrosion for long time effectively, and play a role in self-repairing the metal surface to a certain extent. The method is characterized in that an inhibitor molecule and polyelectrolyte are alternately deposited on the surface of a silicon dioxide nano-particle through green environment-friendly type metal inhibitor micromolecules and polyelectrolyte by adopting layer-by-layer self-assembly technology and utilizing the penetrating controllability of a polyelectrolyte self-assembly membrane so as to prepare a functional nano-particle with the inhibitor and the polyelectrolyte self-assembly composite membrane which are coated on the surface; and the prepared functional nano-particle is mixed with sol-gel to prepare the functional sol-gel membrane coated on the metal surface to be protected. The coating has the function of metal surface self-repairing, and ensures that the inhibitor molecules released by the functional membrane are adsorbed on the metal surface to reform a protecting membrane in a coating damaged microsection to play a certain role in self repairing. The method is applicable to corrosion protection of various metals.
Owner:UNIV OF SCI & TECH BEIJING
Abuse-resistant oral dosage forms and method of use thereof
InactiveUS20080166405A1Antagonizing the opioid effect of an opioid agonistBiocidePowder deliveryOpioid AgonistOpioid antagonist
An opioid-antagonist oral dosage form which does not release a therapeutically effective amount of the opioid antagonist when the oral dosage form is orally administered to a human being, but whereby a physical alteration of the oral dosage form results in a release of the therapeutically effective amount of the opioid antagonist. An embodiment of the oral dosage form includes an opioid-antagonist layer coated onto a biologically inert pellet, and a non-releasing membrane coated onto the opioid-antagonist layer. Optionally, the oral dosage form can also include an opioid agonist, such that a method of preventing the abuse of an oral dosage form of an opioid agonist is provided by forming the oral dosage form including an opioid agonist and an opioid antagonist.
Owner:MEHTA ATUL M
Methods for manufacturing large-scale plastic lenses
InactiveUS20050260343A1The production process is simpleReduce manufacturing costOptical surface grinding machinesOptical articlesAspheric lensMembrane configuration
Methods for manufacturing large-scale plastic lenses that cut a plastic optical material piece into a non-spherical lens by use of an accurate CNC lathe turning machine cooperating with a curve adjusting program to correct variations caused in the following steps. After cutting, the non-spherical lens is coated with hardening membranes or / and selectively polished to improve surface quality of surfaces of the non-spherical lens. Lastly, anti-reflecting membranes coat on the hardening membranes to achieve a large-scale plastic lens. By the methods, manufacturing procedures of the large-scale plastic lens are simplified to save time and to reduce manufacturing costs.
Owner:I STRONG SYST
Discontinuous metallic silver membrane and membrane coating method for same
ActiveCN102615875AImprove adhesionHigh mechanical strengthLayered productsVacuum evaporation coatingScreen printingWeather resistance
The invention discloses a discontinuous metallic silver membrane and a membrane coating method for the same. The membrane is coated on a glass base plate, and comprises a titanium dioxide membrane layer, a silicon dioxide membrane layer, a titanium dioxide membrane layer, a silicon dioxide membrane layer, and a titanium dioxide membrane layer in sequence from the glass base plate to the outside; the membrane coating method comprises the steps as follows: a silver membrane is prepared through optical vacuum membrane coating, conducting the silk screen printing to a membrane-coated product, and finally conducting the membrane layer stripping. The discontinuous metallic silver membrane has the advantages of strong adhesion power, good resistance to mechanical strength, strong metallic feeling, good weather resistance, and suitability for mass production; and moreover, the membrane coating surface is not scratched by ink silk-screened on the membrane coating surface; the preparation process is stable; and the membrane layer is not easily oxidized after being exposed in the air for a long time.
Owner:DONGGUAN HUAQING OPTICAL TECH
Method for preparing ceramic-based composite material environment barrier coating by laser cladding
The invention relates to a method for preparing a ceramic-based composite material environment barrier coating by laser cladding, which has the technical characteristics that: 1, a composite material to be coated is processed to a required size and completely washed in an ultrasonic washing machine; 2, the environment barrier coating material powder, a bonding agent and a solvent are mixed uniformly according to a certain ratio to form pulp; 3, the pulp is uniformly brushed on the surface of the composite material and dried; and 4, the membrane coated with the coating pulp is placed on a laser processing worktable, laser cladding is performed by a certain process, and thus, the environment barrier coating is prepared. The interface of the obtained coating is firmly bonded, the coating is uniform and compact, and the quality of the coating is improved obviously. In the invention, the process is simple, area-selectable cladding can be performed, the processing period is short, and high-performance environment barrier coating can be prepared.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Preparation method for Cu-based hydrogenation catalyst
InactiveCN105148923AImprove hydrogenation performanceEnhanced interactionOrganic chemistryMetal/metal-oxides/metal-hydroxide catalystsReducing atmosphereGlass sheet
A preparation method for a Cu-based hydrogenation catalyst comprises the following steps: dissolving soluble copper salt into water, then adding a carrier into the solution, and uniformly loading a copper precursor on the surface of the carrier to obtain a precursor sample; mixing the precursor sample and ethanol to form a suspending liquid, coating the suspending liquid on the surface of a glass sheet, impulsing polyisocyanate into an MLD reaction cavity, then impulsing an M precursor to be subjected to monomolecular layer reaction on the sample surface in sequence to obtain a hybrid membrane coated copper precursor compound; conducting heat treatment on the compound in air to obtain a nanometer CuO-MOx compound, and then conducting reduction in the reducing atmosphere to obtain the Cu-MOx interface catalyst. The preparation method has the advantage that the Cu-MOx interface structure can be regulated and controlled.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
Microbial sustained-release sphere for soil repairing
The invention discloses a microbial sustained-release sphere for soil repairing, and belongs to the technical field of soil repairing. The microbial sustained-release sphere comprises a sustained-release sphere, wherein the sustained-release sphere comprises an inner water-soluble membrane, and the inside of the inner water-soluble membrane coats a plurality of microbial carrier spheres and microbial degradable plastic film spheres, which are distributed alternately; soil repairing microbial flora is adhered to the microbial carrier spheres; the microbial degradable plastic film spheres are filled with hydrogen peroxide; a plurality of straw fiber ropes which are uniformly distributed are fixedly connected on the inner wall of the inner water-soluble membrane, and are in a puffed shape; after being dosed into soil, the sustained-release spheres can be gradually degraded under the moisture effect along with time passing for constantly repairing the soil, the number of microbes can be constantly ensured, multiple dosage is not required, labor and materials can be saved, and the using method is diversified since the microbial sustained-release spheres can be dosed into soil optionallyin a turbid liquid manner.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Hydrophobic separation membrane and preparation method
The invention discloses a hydrophobic separation membrane which has a self-dehydrating effect. The hydrophobic porous separation membrane coats a hydrophobic coating material with the thickness of 100 micrometers to 20 micrometers on the surface of a hydrophilic ultrafiltration / microfiltration base membrane or a hydrophobic macroporous microfiltration base membrane to form a hydrophobic surface layer; the aperture range of the hydrophobic porous separation membrane is 0.01-2 micrometers; the thickness of the base membrane is 20-800 micrometers; a contact angle of the hydrophobic surface layer and water is 100-179 degrees; and preferably, the thickness of the hydrophobic surface layer coated on the surface of the base membrane is 150 micrometers to 2 micrometers. The invention further discloses a preparation method of the hydrophobic separation membrane and a using method of the hydrophobic separation membrane.
Owner:TIANJIN POLYTECHNIC UNIV +1
Air-conditioning temperature-reducing and light-tight preservation box for delivering or storing vegetables in short term
InactiveCN101850875AImprove air tightnessImprove extrusion resistanceDomestic cooling apparatusLighting and heating apparatusEngineeringAir conditioning
The invention discloses an air-conditioning temperature-reducing and light-tight preservation box for delivering or storing vegetables in short term. The air-conditioning temperature-reducing and light-tight preservation box comprises a box body and a box cover airtightly covering on an upper opening of the box body; an insulating layer is coated on an inner side wall of the box body; an isolating bracket is arranged at the bottom of the inner side of the box body; a through hole is formed on the isolating bracket; a fluid refrigerant bag is arranged at the bottom inside the box body on the lower part of the isolating bracket; a plurality of air holes are formed on two symmetrical side surfaces of the box body; a selective ventilated membrane coats on the plurality of air holes on the inner side of the box body; and a reflecting coating is arranged on the outer surface of the box body. The air-conditioning temperature-reducing and light-tight preservation box has the advantages that: the preservation box has good function of protecting the vegetables, and is repeatedly used, extrusion resistant, and convenient to load and unload; the tightness of the box body and the selective ventilated membrane which is adhered to the holes on the two side surfaces have good air-conditioning function; by adjusting the number of the holes, the ventilating area of the selective ventilated membrane is adjusted, so that the aim of changing the gas components in the preservation box is fulfilled; the vegetable ageing is prevented; and the repeatedly used ice bag can realize the function of reducing the temperature.
Owner:NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN
Variable single-mode attenuators by spatial interference
An optical attenuator is disclosed that utilizes the concept of destructive and constructive interference to enhance the ability to attenuate the light signal sent between an optical transmitter and an optical receiver. Rather than completely blocking out a portion of the light signal or utilizing a membrane coated with a partially reflecting material, the present invention utilizes a very high reflectivity coating on divided surfaces, and controls the relative distances between each of the divided surfaces and the optical transmitter / receiver.
Owner:AGERE SYST INC
Irreversible humidity exposure dose indicator device
InactiveUS20080163673A1Simple to useIntuitive readingMaterial analysis by observing effect on chemical indicatorMeasurement apparatus componentsWater vaporEngineering
An irreversible humidity exposure dose indicator device, including a housing sealed at a first end thereof and adapted at a second end thereof to admit ambient gas ingress into an interior volume containing chromogenic material. The chromogenic material in contact with water irreversibly absorbs such water to produce a change whose extent is correlative of cumulative exposure of the device to humidity. The device may be configured as an indicator card including an intermediate permeable membrane coated on a first side thereof with a layer of a deliquescent solid and being in contact on a second side thereof with a layer containing a reactive indicator, with a water-permeable layer adjacent to the layer containing the deliquescent coating, enclosed within a water-impermeable transparent enclosure. The device can include an opening to the permeable layer that is shielded by a removable member that is removed to initiate the dosimetric process, and permit water vapor to diffuse through the opening and liquefy the deliquescent material, so that the liquid permeates through the membrane and a visible indication of the location of the wet front is seen as the water contacts the chromogenic material. A scale can be printed on the exterior of the enclosure to permit a viewer to see the progress of the indication, e, g. of a color front.
Owner:APPEALING PRODS
Membrane electrode containing hydrophilic high polymer in anode catalytic layer and preparation method thereof
InactiveCN102437343AGood moisturizing effectIncreased counter-diffusion dynamicsCell electrodesSlurrySolvent
Owner:SOUTH CHINA UNIV OF TECH
Preparation method of chitosan membrane
The invention discloses a preparation method of a chitosan membrane. The method comprises the following steps of: dissolving chitosan in 1-carboxymethyl-3-methyl chlorine salt ion liquid water solution of 1-5%, and enabling the chitosan to completely dissolve so as to obtain a stock solution of 1-5 wt% for preparing the chitosan membrane; performing squeezing and filtering; performing standing and defoaming; performing rotary membrane coating on a glass plate; performing drying under constant temperature of 40 DEG C and constant humidity of 50%; performing soaking in a sodium hydroxide solution of 1-5% for 1-5h and stripping a membrane; cleaning the membrane in distilled water till the pH is neutral; and drying the cleaned membrane under the constant temperature of 40 DEG C and constant humidity of 50% so as to obtain the chitosan membrane. According to the chitosan membrane, the thickness is 2.5-3.5 mu m, the breaking strength is larger than or equal to 170MPa, the elongation at break is larger than 3.6%, and the initial modulus is larger than 3.3 GPa. The chitosan membrane can be used as anticoagulant materials, bone repairing materials, wound dressing materials, and the like.
Owner:QINGDAO UNIV OF SCI & TECH
Membrane cutter
InactiveCN102390162AFast and efficient film cuttingIncrease productivityLamination ancillary operationsLaminationIndustrial engineeringMembrane coat
The invention relates to cutting machinery, in particular to a membrane cutter which is used for cutting a membrane coated on the surface of a plate. The membrane cutter structurally comprises a frame and plate conveying part equipment arranged on the frame, wherein working head x-direction part equipment is arranged on the frame; working head y-direction part equipment is arranged on the working head x-direction part equipment; working head z-direction part equipment is arranged on the working head y-direction part equipment; a working head is arranged on the working head z-direction part equipment; and a cutting tool of the working head is arranged above the plate conveying part equipment. According to the membrane cutter disclosed by the invention, rapid and effective membrane cutting operation of a large plate is realized, production efficiency is improved, and production cost is reduced.
Owner:QINGDAO LAMINATE MACHINERY
Method for online preparing high-throughput composite reverse osmosis membrane
ActiveCN103657430AReduce crosslink densityIncrease water fluxSemi-permeable membranesWater/sewage treatment bu osmosis/dialysisUltrafiltrationReverse osmosis
The invention discloses a method for online preparing a high-throughput composite reverse osmosis membrane. The method comprises the following steps of using a membrane coating machine to enable an ultrafiltration base membrane to pass through m-phenylenediamine aqueous solution, normal hexane solution of trimesoyl chloride, an oven, a purge tank, an oxidation tank, a reduction cell, a glycerite tank and a protective liquid tank; drying in the oven to obtain the high-throughput composite reverse osmosis membrane. The method has the characteristics that the process is simple, the water flux of the membrane is high, dry films of the high-throughput composite reverse osmosis membrane can be directly produced, membrane components can be wound conveniently, large-scale production can be realized, the process is stable, and the like. The high-throughput composite reverse osmosis membrane can be applied in the field of household water purification, municipal administration tap water is utilized to supply pressure without an additional booster pump, the cost is greatly reduced, and the energy is saved.
Owner:BEIJING ORIGIN WATER FILM TECH
Functional platelet bionic intelligent carrier and application thereof in anti-ischemic cerebral apoplexy
ActiveCN109364263AGood biocompatibilityPromote degradationOrganic active ingredientsPeptide/protein ingredientsSide effectBiocompatibility Testing
The invention discloses a functional platelet bionic intelligent carrier and application thereof in anti-ischemic cerebral apoplexy. The bionic carrier is composed of polymer nanoparticles of a platelet membrane coated neuroprotectant ZL006e, a Tat cell-penetrating peptide as well as substrate peptide fragments and fibrinolytic protein conjugates capable of being cut by thrombin. The carrier system has the characteristics of excellent biocompatibility, capacity of effectively prolonging in-vivo cycle time and the like, and is capable of targeting micro-thrombus in lesions of ischemic cerebralapoplexy and releasing thrombolytic drugs. Meanwhile, the exposed Tat cell-penetrating peptide mediated neuroprotectant is capable of increasing blood-brain barrier permeability, the pH serves as an intelligent drug release switch, and the pH-mediated degradation at the lesions is responded, so that the drug is quickly released at lesions of cerebral ischemia, the curative effects are improved tothe greatest degree, and toxic and side effects are reduced.
Owner:NANJING MEDICAL UNIV
Preparation method of high-performance anisotropic Sm-Fe-N permanent magnet
ActiveCN106384638AImprove magnetismTransportation and packagingMetal-working apparatusHigh densityRare earth
The invention relates to a preparation method of a high-performance anisotropic Sm-Fe-N permanent magnet, and belongs to the field of rare earth permanent magnet materials. The preparation method is characterized in that anisotropic Sm2Fe17Nx alloy powder and a little low-melting-point metal / alloy powder are mixed, or a layer of low-melting-point metal / alloy membrane coats the surface of the anisotropic Sm2Fe17Nx alloy powder; then, orientation profiling is preformed in a magnetic field; hot pressing sintering is performed at 480 to 520 DEG C for compaction; the high-performance anisotropic Sm-Fe-N permanent magnet is obtained. The low-melting-point metal / alloy ingredient consists of R-M, R-N, R-(M,N) or N-N; the melting point range is 300 to 450 DEG C; R is one or more than one from La, Ce, Pr, Nd, Gd, Tb, Dy and Ho; M is one or more than one of Fe, Co and Ni; N is one or more than one from Cu, Al, Ga, Zn, Sn and Ag. The preparation method has the advantages that the high-density anisotropic Sm2Fe17Nx permanent magnet can be prepared, so that high permanent-magnet performance can be obtained.
Owner:UNIV OF SCI & TECH BEIJING
Layered peptide/antigen arrays - for high-throughput antibody screening of clinical samples
InactiveUS20060275851A1Quick and inexpensiveHigh-throughput detectionBioreactor/fermenter combinationsBiological substance pretreatmentsAntibody screeningMembrane configuration
A method and composition for the identification of biomolecule in a sample are disclosed. The method comprises obtaining a coated capture membrane stack comprising a plurality of capture membranes with each capture membrane coated with a different peptide. The membrane stack is exposed to a sample, and, after a given amount of time for the sample to permeate the membrane stack, the membrane stack is removed from the sample carrier and the capture membrane to which the biomolecule adheres is identified.
Owner:EMMERT BUCK MICHAEL R +1
Aliphatic polyamide loose reverse osmosis membrane as well as preparation method and application thereof
PendingCN108246128AReduce surface roughnessSmooth film surfaceGeneral water supply conservationReverse osmosisPolyamideSeawater
The invention discloses a preparation method of an aliphatic polyamide loose reverse osmosis membrane. The preparation method comprises the following steps: coating a porous supporting membrane with achain type aliphatic amine solution by adopting a coating or immersing way, and then carrying out interfacial polymerization on the porous supporting membrane coated with the chain type aliphatic amine solution and a cycloaliphatic acyl chloride solution, thus forming the aliphatic polyamide loose reverse osmosis membrane. The aliphatic polyamide loose reverse osmosis membrane is prepared by carrying out the interfacial polymerization on cycloaliphatic acyl chloride and chain type aliphatic amine, has an excellent removal rate on divalent ions such as Ca<2+>, Mg<2+> and SO4<2->, has very goodanti-fouling performance and high water flux, can be used for removing COD such as dye molecules and phenolic molecules in wastewater, can also be applied to a separating and concentrating process ofmaterials in industries of pharmacy and food or the fields of water softening, seawater desalination or brackish water pretreatment, refuse leachate treatment and the like, and has a huge applicationprospect.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
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