49 results about "Ionic complex" patented technology

The present invention relates to an ionic complex comprising a cationic polypeptide and an anionic excipient selected from: a PEG-carboxylic acid; a fatty acid having 10 or more carbon atoms; an anionic phospholipid; and a combination thereof. The invention also relates to a pharmaceutical composition comprising the ionic complex of the invention and a pharmaceutically acceptable carrier. The cationic polypeptide of the ionic complex has pharmacological activity and the complex can provide a more desirable pharmacokinetic profile for the cationic polypeptide of the complex as compared to the cationic polypeptide alone following administration. As such, the invention also relates to the use of the ionic complex and pharmaceutical composition comprising same to treat a subject suffering from a disease or disorder that is responsive to the cationic polypeptide of the ionic complex.

The present application relates to a polypropylene film and a preparation method therefor, a composite current collector, an electrode sheet, and the use thereof, and belongs to the technical field of batteries. The preparation method for the polypropylene film comprises the following steps: performing a melt extrusion treatment, a casting treatment, a bidirectional stretching treatment and a heat treatment on raw materials in sequence, so as to obtain a polypropylene film intermediate, wherein the raw materials comprise 99-99.95% of a polypropylene and 0.05-1% of an additive in percentages by mass, the additive comprising a polyacrylic acid-metal ion complex; and performing a corona treatment on the polypropylene film intermediate, so as to obtain a polypropylene film. The polypropylene film prepared by means of the preparation method of the present application improves the storage stability of the surface adhesion performance of the polypropylene film, and realizes the stable preparation of a composite current collector with the polypropylene film as a base film.

The invention belongs to the technical field of chemical mechanical polishing, and relates to an alkaline gallium nitride polishing solution based on Fenton reaction and a preparation method thereof. The alkaline gallium nitride polishing solution provided by the invention comprises hydrogen peroxide, a silicon dioxide grinding material, sodium bicarbonate, ferric salt, a dispersing agent, a stabilizing agent, a complexing agent and deionized water. The application range of the Fenton reaction can be widened to alkaline conditions by catalyzing hydrogen peroxide through the iron-based ion complex, conversion of ferric ions to ferrous ions can be promoted by using the stabilizer, the catalytic action of the ferrous ions is enhanced, and the effective duration of the polishing solution is prolonged. The polishing solution provided by the invention is environment-friendly, does not corrode processing equipment, is low in cost and stable in property, does not need additional auxiliary equipment, is more convenient to operate, and can be stably stored for a long time.

The invention discloses a Zn < 2 + >-lanthanide ion complex co-doped CIZS quantum dot and a method thereof. The method comprises the following steps: (1) preparing a multi-element sulfide quantum dot; (2) preparing a lanthanide ion complex; (3) preparing CIZS quantum dots coated with Zn < 2 + >; and (4) preparing the lanthanide ion complex doped CIZS (at) ZnS quantum dot. The luminescent property of the quantum dot is improved by utilizing rich f-f electron transition energy level of lanthanide elements and through additional absorbed light quantum energy transfer or through structure doping on the surface of the quantum dot. The key point is that the problem that the lanthanide ions (Ln < 3 + >) are difficult to dope the sulfenyl quantum dots is overcome in a breakthrough manner, so that the lanthanide ions (Ln < 3 + >) and the complex thereof are structurally doped and permeated to the CuInZnS quantum dots. The ZnS-coated lanthanide ion complex-doped CuInZnS quantum dot is prepared by the following steps of: performing Zn < 2 + > coating on the surface of the quantum dot under proper reaction conditions by selecting a combination of an organic small molecule ligand and lanthanide ions to form a lanthanide ion complex, and then introducing the lanthanide ion complex to obtain the ZnS-coated lanthanide ion complex-doped CuInZnS quantum dot.

A biosustainable wood-based microfluidic cassette having an impedimetric nitrate sensor for nitrate monitoring of water samples, wherein the nitrate sensor employs a nanocomposite having nitrate-binding metal ion complexes incorporated in and / or on polyaniline / carbon nanostructure. The nitrate sensor demonstrates good specificity to nitrate, reproducibility, a wide temperature range operability, and measurement equivalency to commercial nitrate sensors.

A process for removing impurity metal ions from an acidic metal sulfate containing stream by adding an effective amount of a reagent, comprising at least one dialkyldithiophosphate compound with the alkyl chain length of C1 to C8 to the acidic metal sulfate containing stream to form impurity metal ion complexes; and separating the impurity metal ion complexes from the acidic metal sulfate stream.

The invention belongs to the technical field of traditional Chinese medicine preparations, and provides a pharmaceutical composition for recurrent urinary tract infection and a preparation method thereof. According to the invention, a compound extract for warming yang, promoting diuresis and activating blood and baicalin are synergistically compounded in an ion composite network formed by sodium alginate and chitosan, and are subjected to shear dispersion or homogenization treatment to form ion composite nanoparticles, and then the ion composite nanoparticles are subjected to calcium chloride cross-linking solidification and chitosan coating to prepare a multi-layer synergistic carrier design of the pellet; the dispersion uniformity, the forming strength, the pH response release and the storage stability of the ionic composite nanoparticles under the condition of high drug loading capacity are realized, and the core contradiction that the mechanical strength, the in-vivo swelling response release and the low-water-content storage and transportation stability are difficult to consider at the same time in the existing calcium alginate carrier system is solved; the method has wide clinical application value in comprehensive prevention and treatment of recurrent urinary tract infection.

This invention discloses a biomimetic bundled fiber evaporator, its preparation method, and its application, belonging to the field of solar interface evaporation water treatment technology. The evaporator includes a bundled fiber core formed by binding C-shaped or Y-shaped cross-section fibers or multi-twisted cotton threads with binding straps; a tannic acid-iron ion complex or MXene superhydrophilic photothermal coating coated on its surface; a hydrophobic thin layer of polydimethylsiloxane or polymethylhydrosilane sprayed onto the upper side of the evaporator; and an insulating float for buoyancy. This invention's biomimetic bundled fiber structure, inspired by enoki mushrooms, replaces the traditional ice template method with simple physical constraints, resulting in a simple, rapid, and low-cost preparation process. This structure achieves efficient, low-resistance water transport and excellent thermal localization effects. Experiments show that the evaporator can achieve a pure water evaporation rate of 2.43~2.82 kg·m³ under one day of sunlight. ‑2 ·h ‑1 It also has excellent evaporation performance and long-term stability, and can be widely used in seawater desalination, high-salt wastewater treatment and other fields.

The application provides a high-capacity long-cycle high-nickel positive electrode material and a preparation method thereof. The high-nickel positive electrode material is a compound shown in the following general formula: Li a Ni x Co y Mn z M 1‑x‑y‑z O2, M is selected from one or more of V, Ta, Nb, Sr, Mo, Mg, Al, Zr, Ti, Ca, La and W, 0.80<=a<=1.20, 0.6<=x<=1.0. The material can form an ion complex with lithium ions. When the compound is added to an aqueous solution, lithium ions can be complexed and then attached to the surface of the high-nickel positive electrode material, so that the excessive escape of lithium ions is prevented, the structural lithium loss of the material in the water washing process is minimized, and the high-nickel positive electrode material with the high-capacity characteristic is prepared.

The inventions relate to olefin polymerization processes. The invention describes: compounds that act as solid activating supports; catalysts; and catalytic compositions containing olefin polymerization catalysts that comprise said solid activating supports having the formula (I): support - O - A. In the compounds expressed by this formula, the support is a solid substrate of an inorganic oxide, and A is a polyfluorinated functional group bound to an oxygen atom on the substrate surface and having the general formula: [C(R1 ) (R2 )-O-MLn]z+ (Cty+ )z / y (II), where M is selected from the group consisting of an atom of aluminium, gallium, boron, a group 3 transition metal, and lanthanide; L is a ligand; n is 2, 3 or 4; z is 0 or 1, and Cty+ is a cation capable of converting a neutral transition metal complex into a cationic complex capable of catalyzing olefin polymerization, with a charge y, where y is 1 or 2. The invention makes it possible to use olefin polymerization catalysts on solid supports in suspension processes and gas-phase processes, thereby producing polyolefins in the form of powders having a narrow particle size distribution and a high bulk density.

The present invention provides a silver ion complex Gemini quaternary ammonium salt along with its preparation method and application. The preparation method includes: the Michael addition reaction and nucleophilic substitution reaction are conducted on dimethylaminoethyl acrylate, long chain thiol and dihaloalkane to obtain Gemini quaternary ammonium salt; and then the Gemini quaternary ammonium salt combines with silver salt to yield the silver ion complexed Gemini quaternary ammonium salt. The present invention includes the silver ion complex of Gemini quaternary ammonium salt and the preparation method and the application. The silver ion complex of Gemini quaternary ammonium salt has higher sterilization and environmental degradability, which greatly reduces the probability of bacterial resistance.

The invention provides a marine antifouling coating as well as a preparation method and application thereof. The marine antifouling coating comprises a base material, epoxy resin primer and a composite antifouling layer which are sequentially stacked, and the composite antifouling layer comprises a copolymer of 2-acrylamide-2-methyl-1-propanesulfonate and trimethyl (acrylamide propyl) ammonium iodide and a polydopamine-metal ion complex. Epoxy resin primer is arranged on the surface of a base material, then a composite coating containing PDA (at) M and AMPs + / TMAAI is prepared on the epoxy resin substrate through a co-deposition method, the composite coating and the epoxy resin primer act together, and the long-acting antifouling performance of the coating in the marine environment is improved.

The present invention belongs to the technical field of chemical mechanical polishing, and relates to an alkaline gallium nitride polishing liquid based on the Fenton reaction and a preparation method thereof. The alkaline gallium nitride polishing liquid provided by the present invention comprises hydrogen peroxide, silica abrasive, sodium bicarbonate, iron salt, dispersant, stabilizer, chelating agent and deionized water. The present invention can broaden the scope of application of the Fenton reaction to alkaline conditions by catalyzing hydrogen peroxide with an iron-based ion complex. The use of a stabilizer can promote the conversion of trivalent iron ions to ferrous ions, enhance the catalytic effect of ferrous ions, and extend the effective duration of the polishing liquid. The polishing liquid provided by the present invention is environmentally friendly, does not corrode processing equipment, has low cost, stable properties, is more convenient to operate without the need for additional auxiliary equipment, and can be stably stored for a long time.

The invention provides a tetraphenylethylene derivative ion complex / Fe < 3 + > complex fluorescent probe as well as a preparation method and application thereof. A preparation method of a tetraphenylethylene derivative ion complex / Fe < 3 + > complex fluorescent probe comprises the following steps: dissolving a tetraphenylethylene derivative ion complex in ethanol to obtain a stock solution I; the preparation method comprises the following steps: dissolving FeCl3. 6H2O in deionized water to obtain a stock solution II; and mixing the stock solution I and the stock solution II, and diluting with deionized water to obtain the tetraphenylethylene derivative ion complex / Fe < 3 + > complex fluorescent probe. The tetraphenylethylene derivative ion complex / Fe < 3 + > complex fluorescent probe is applied to detection of F <-> ions. The tetraphenyl ethylene ion complex / Fe < 3 + > complex provided by the invention can realize F <-> 'open-type 'fluorescence detection.

This invention provides a method for separating and recovering cobalt and nickel from alkaline leaching solutions via CO2 mineralization. The method includes: leaching a raw material containing cobalt and nickel in an amine complexing agent solution to obtain a leaching solution containing cobalt and nickel ion complexes; introducing CO2 into the leaching solution to perform a carbonation precipitation reaction of the metal ions; and controlling different reaction temperatures to achieve co-precipitation of cobalt and nickel or stepwise precipitation of cobalt and nickel, thereby achieving the separation and recovery of cobalt and nickel. This invention achieves the dual benefits of CO2 absorption and efficient precipitation and separation of cobalt and nickel ions, and the process is simple, significantly reducing raw material costs and environmental remediation costs.

The invention discloses a multifunctional biodegradable environment-friendly liquid mulching film which comprises a cellulose matrix, a photo-thermal response filler, a microbial filler, a dynamic cross-linking agent, a farmland modifier and a growth aid, the cellulose matrix is a nanocellulose suspension, the diameter of the cellulose matrix is 1-100nm, and the dynamic cross-linking agent is a complex of oxidized konjac glucomannan and Fe < 3 + > ions; the photo-thermal response filler comprises one or more of black phosphorus quantum dots or carbon quantum dots, the particle size of the photo-thermal response filler is 3-10 nm, the farmland modifier is humic acid grafted cellulose nanowhiskers, and the grafting rate is larger than 30%. Compared with the prior art, the multifunctional biodegradable environment-friendly liquid mulching film has the advantages that the multifunctional biodegradable environment-friendly liquid mulching film is easy to produce and use, reduces environmental pollution and can be naturally degraded.

A method comprising: contacting a cobalt salt containing one or more cobalt halides or esters with a trialkylaluminum or halodialkylaluminum in a coordination compound and / or an inert solvent to form a solution; contacting the formed solution with carbon monoxide having a partial pressure of about 10 psi to about 500 psi at a temperature of about 25°C to about 100°C under conditions for forming a cobalt carbonyl; and contacting the cobalt carbonyl with a porphyrin metal or alkyl halide and a coordination compound, and optionally an inert solvent, under conditions for forming a complex of the cation of the porphyrin metal or alkyl halide, wherein the coordination compound is coordinated to the metal and the anion of the cobalt carbonyl.

The invention relates to a complex comprising a first component: (i) a carrier peptide comprising a cell-penetrating sequence and a polycation sequence: and a second component (ii) a ribonucleic acid (RNA), PNA and / or protein, wherein the carrier peptide is a cyclic peptide comprising at least 2 cysteine residues bridged by a disulphide bond.

A method of extracting a critical mineral cation from a composition is provided. The composition can be any type of composition having critical minerals. The method can include contacting a polyanion to a composition, wherein the composition includes the critical mineral cation. The method includes complexing the critical mineral cation with the polyanion to form a polyan-ion / cation complex in the composition. The method can include separating the polyanion / cation complex from the composition. The method can also include releasing the critical mineral cation from the polyanion.

Systems and methods drawn to an electrochemical cell comprising a low temperature ionic liquid comprising positive ions and negative ions and a performance enhancing additive added to the low temperature ionic liquid. The additive dissolves in the ionic liquid to form cations, which are coordinated with one or more negative ions forming ion complexes. The electrochemical cell also includes an air electrode configured to absorb and reduce oxygen. The ion complexes improve oxygen reduction thermodynamics and / or kinetics relative to the ionic liquid without the additive.

The invention discloses a preparation method of a TiN tension coating on the surface of oriented silicon steel, which belongs to the field of silicon steel tension coatings and comprises the following steps: brushing a precursor solution containing a titanium ion complex on the surface of silicon steel, and carrying out heat treatment on the silicon steel at a temperature higher than a first temperature. In the heating process of heat treatment, when the temperature is lower than a first temperature, the silicon steel is protected by inert atmosphere, when the temperature is higher than the first temperature, the ligand of the introduced ammonia gas and titanium ion complex is an organic ligand, and the first temperature is higher than the degradation temperature of the organic ligand. The compact titanium nitride tension coating can be prepared on the silicon steel, the area and the shape of the silicon steel are not limited, large-area brush coating can be achieved, brush coating and heat treatment can be matched with the silicon steel preparation process, the cost of improvement on original silicon steel production equipment is low, and the atmosphere is controlled in stages according to the temperature, so that the prepared coating is compact and good in film forming quality; and the binding force between the coating and the silicon steel is strong.

The present invention relates to an ionic complex comprising a cationic polypeptide and an anionic excipient selected from: a PEG-carboxylic acid; a fatty acid having 10 or more carbon atoms; an anionic phospholipid; and a combination thereof. The invention also relates to a pharmaceutical composition comprising the ionic complex of the invention and a pharmaceutically acceptable carrier. The cationic polypeptide of the ionic complex has pharmacological activity and the complex can provide a more desirable pharmacokinetic profile for the cationic polypeptide of the complex as compared to the cationic polypeptide alone following administration. As such, the invention also relates to the use of the ionic complex and pharmaceutical composition comprising same to treat a subject suffering from a disease or disorder that is responsive to the cationic polypeptide of the ionic complex.

The application relates to the field of membrane separation technology and discloses a composite nanofiltration membrane and a preparation method and application thereof. The composite nanofiltration membrane comprises a reinforcing layer and a support layer, an intermediate layer and a separation layer which are sequentially attached to the surface of the reinforcing layer; the support layer is a polymer layer containing nanometer manganese dioxide; the intermediate layer is a tannic acid-iron ion complex layer; and the separation layer is a polyamide layer. The support layer of the composite nanofiltration membrane is a polymer layer containing nanometer manganese dioxide, the nanometer manganese dioxide is uniformly dispersed in the polymer layer, interacts with tannic acid in the intermediate layer, can provide a channel for solvent transmission with the gap between the polymer matrix, reduces the resistance of solvent passing, and improves the flux. Meanwhile, the intermediate layer and the separation layer interact, so that the thickness of the separation layer is relatively thin, and the flux of the composite nanofiltration membrane is further improved.

The invention provides an improved thermoplastic carbon fiber composite material and a preparation method thereof. The composite material comprises 20-35% of modified PAN-based carbon fibers, 25-35% of PP fibers, 25-35% of hemp fibers, 10-15% of PET fibers and 0.5-2% of a flow promoter. The preparation method of the modified PAN-based carbon fiber comprises the following steps: placing carbon fiber in a nitrate-hydrogen peroxide system for surface oxidation until the content of oxygen-containing groups is not less than 5%, and then performing gel electrophoresis to enable metal ions and the oxygen-containing groups to form a complex. By forming metal ion complexes among the fibers, the compatibility among the fibers is improved while good processing characteristics are maintained, so that the mechanical property of the material is improved, and the lightweight application market is met.

The invention provides a metal electrolyte preparation method which comprises the following steps: S1, performing molecular sieve dewatering on organic solvents, mixing the organic solvents, and performing magnetic stirring; s2, dissolving a lithium salt in an organic solvent, and stirring until the lithium salt is dissolved to obtain a mixed solution; s3, adding an additive and nitrogen diisobutyronitrile into the mixed solution, carrying out magnetic stirring, and standing to obtain a target electrolyte; according to the invention, the molten salt is utilized to construct an ion co-melt on the surfaces of the positive electrode particles, so that various ions can be uniformly and stably distributed on the surface of the positive electrode material, the generation of a subsequent uniform fluorinated layer is promoted, the irreversible phase change and the dissolution of transition metal ions can be better inhibited, and the cycle performance and the thermal stability of the material are improved.

The present application relates to the technical field of carbon dioxide recovery, and particularly relates to an amino-functional ion complex anhydrous absorbent for absorbing carbon dioxide and a preparation method thereof, which solves the problems of low carbon dioxide absorption rate, high desorption energy consumption and corrosion to equipment of the existing ammonia water solution method and alcohol amine solution method, and provides an ionic liquid, i.e. carbamate monohydroxyethane-dimethyl sulfoxide ([DETAH][HCOO]-MEA-DMSO) ionic solution, a manufacturing method of the ionic liquid, which comprises the steps of preparing diethylenetriaminocarbamate [DETAH][HCOO], preparing diethylenetriaminocarbamate-ethanolamine [DETAH][HCOO]-MEA solution and preparing amino-functional ion complex anhydrous absorbent [DETAH][HCOO]-MEA-DMSO, the amino-functional ion complex anhydrous absorbent prepared by the method has the advantages of high absorption rate, large absorption amount, regeneration, low desorption energy consumption, corrosion resistance to metal and the like. Meanwhile, the process is simple, easy to realize, can effectively control the corrosion to the equipment, save the cost, and can recycle and utilize the carbon dioxide as a resource.

The invention provides an investment casting surface layer adhesive formula, and relates to the technical field of investment casting materials. The investment casting surface layer adhesive formula comprises the following raw materials in parts by weight: 10% of an anionic surfactant, 15% of a cationic surfactant, 16% of a nonionic auxiliary agent, 10% of a wetting agent, 18% of a defoaming agent, 8% of a chemical inorganic material, 18% of a laminating agent and 5% of an anti-aging agent. The core innovation lies in that an anion-cation-nonionic composite surfactant system and an inorganic-organic material are cooperatively designed, a multifunctional additive combination is matched, and the comprehensive performance of the surface layer adhesive is remarkably improved through the synergistic effect of all the components. Through cooperative use of the whole formula, the strength of the material layer is improved, cracking of the investment casting shell is effectively prevented, cracks, rat tail lines, skin falling, falling and bulging of a casting are effectively prevented, the fluidity, coverage and compactness of slurry are improved, burrs are effectively prevented, and the surface quality of the casting is improved.

This invention relates to a method and system for the targeted separation and recovery of target ions in a complex liquid phase. The method includes obtaining a liquid to be treated containing a target ion complex, coexisting ions, and a complexing agent; introducing the liquid to be treated into a main flow channel through the main inlet of a separation channel to form a main liquid flow passing unidirectionally along the collection interface; and introducing a decomplexing liquid into a boundary flow channel adjacent to the collection interface through a boundary inlet of the separation channel, so that the decomplexing liquid flows in the same direction as the main liquid flow along the collection interface, forming a boundary decomplexing liquid layer adjacent to the main liquid flow. By limiting the decomplexing position of the target ion complex to the boundary between the boundary decomplexing liquid layer and the main liquid flow, and by allowing the generated target ions to directly enter the collection interface, the method reduces the possibility of the target ions migrating synchronously with coexisting ions after being released as a whole in the main liquid phase, thereby relatively improving the stability of the targeted separation and recovery of target ions.

The invention discloses a method for preparing an MTe nano material from a Te molecular complex and application, the method comprises the following steps: (1) adding an M source into a mixed solution composed of oleic acid or oleylamine and 1-octadecene to form a cation complex solution, then carrying out preheating and vacuum degassing treatment to obtain a cation precursor solution, M being Pb or Sn; and (2) under the protection of inert atmosphere, heating the cation precursor solution to a set reaction temperature, injecting a Te source precursor, reacting for a period of time, cooling to room temperature, centrifugally separating, washing with an organic solvent, and drying to obtain the MTe nanocrystal, namely the MTe nanomaterial. The method has the advantages of mild synthesis conditions, low cost, low energy consumption, simplicity and convenience in operation, high yield and the like, and is suitable for large-scale and rapid preparation of the MTe-based nano thermoelectric material.

The invention relates to a synergistic multi-ionic complex providing potentiated preventive and therapeutic responses to inflammation by modulating the pathways of immunity. It is a composition comprising mineral salts, including at least one mineral salt of lithium, magnesium and potassium, characterized by the following molar ratios: lithium 1-magnesium [0.13-0.34]-potassium [1.20-2.40]. The composition according to the invention may also contain organic salts, other mineral salts, additives and / or excipients. It can be used as a drug, medical device for the prevention and / or treatment of inflammation, associated with acute or chronic pathologies involving cell degeneration.