66 results about "Ionic complex" patented technology

The invention discloses a lysate for extracting plant DNA (deoxyribonucleic acid) containing polysaccharide and polyphenol. The lysate comprises the following components in percentage by weight: 50 to 500 mmol / L of buffer solution, 1 to 2 mol / L of chloride, 2 to 5 percent of surfactant, 10 to 50 mmol / L of metal ion complex and 10 to 100 mmol / L of antioxidant. The invention provides a method for rapidly, simply and conveniently extracting high-quality and high-yield DNA from various plant materials by utilizing the specific adsorption effect of a purification column on DNA. The whole operation process of the method is only 30-40 min, the process is simple, convenient and rapid, and a reference mode is provided for workers in the field of related plant DNA.

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 relates to the technical field of biological materials and aggregation-induced emission materials, and mainly relates to a fluorescent nucleic acid gel strong adhesive and a preparation method thereof. The fluorescent nucleic acid gel strong adhesive is prepared by the following steps: mixing double-chain desoxyribonucleic acid and a double-end quaternary ammonium salt surfactant containing a tetraphenyl ethylene structure in an aqueous solution system, and oscillating and mixing to form an ionic compound; and carrying out centrifugal separation, water washing purification and drying treatment on the obtained ion compound, and adding dimethyl sulfoxide to obtain the biological organic gel material. The fluorescent nucleic acid gel strong adhesive prepared by the preparation method disclosed by the invention has good biocompatibility and can generate high-strength adhesive property on various materials, and the maximum adhesive strength can reach 7.58 MPa. The fluorescent nucleic acid gel strong adhesive prepared by the invention can be applied to the fields of biological adhesion treatment and the like.

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.

Processes of polymerizing olefins. The process includes polymerizing ethylene and optionally one or more α-olefin monomers in the presence of a catalyst system. The catalyst system includes a procatalyst and a metallic activator ionic complex. The metallic activator ionic complex comprises a cation and a weakly coordinating anion, the cation having a structure according to formula (I).

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.

The invention relates to the technical field of water treatment, in particular to a method for removing fluorine ions in a water body, which comprises the following steps: adding iron ions, aluminum ions and fluorine ions to form a stable complex, so as to change the chemical properties and behaviors of the fluorine ions, thereby influencing the migration behavior of the fluorine ions in chemical reaction and environment; in the removal of the fluorine ions, metal complexing agents including iron ions, aluminum ions and the like are added to form hexafluoroferrite ions or hexafluoroaluminate ion complexes, so that the chemical properties and behaviors of the fluorine ions are changed; the hexafluoroferrate ions or hexafluoroaluminate ions in the water body are adsorbed by the functionalized nanofibers, so that the fluorine ions in the fluorine-containing water body can be removed; and then the functional nanofiber can be recycled through desorption and regeneration.

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 application discloses a kind of water washing environment-friendly type halogen-free flux and preparation method thereof, it is related to electronic welding auxiliary material technical field, to solve the technical problem that existing water washing flux cannot simultaneously satisfy fine pitch anti-bridging, high via tin transmission rate and low ion residue, the flux is composed of the following raw materials: deionized water, complex organic acid active agent, compound water-soluble film forming agent, organic amine pH buffer regulator, copper hole corrosion inhibitor, low-foaming non-ionic complex surfactant, high-temperature antioxidant, environmentally friendly cosolvent.The application precisely matches the three-stage temperature zone of wave-soldering preheating, temperature rise and peak value by three different boiling point organic acids, the low-boiling point component activates in advance to remove the oxide film, the high-boiling point component continuously acts at the peak temperature, under the working condition of 0.35mm fine pitch pin, the via tin transmission rate is greater than or equal to 98% while the bridging defect rate is reduced to less than 0.2%, solving the industry pain point that traditional flux activity increases while bridging increases, and activity decreases while tin transmission is insufficient.

The invention discloses a nucleating agent for improving the crystallization behavior of polyamide and application of the nucleating agent. The nucleating agent for polyamide comprises a metal ion complex and silicate, the metal ion complex is obtained through a coordination reaction of metal ions, polyethylene oxide and polyhydric alcohol, and in the coordination reaction, the molar ratio of the metal ions to ethylene oxide monomers in the polyethylene oxide to the polyhydric alcohol is 1: (0.5-2): (1-8). The metal ions comprise one or a combination of more of calcium ions, lithium ions, magnesium ions and aluminum ions; wherein the polyhydric alcohol is added excessively, so that the nucleating agent further comprises unreacted excessive polyhydric alcohol, the metal ion complex and the silicate, and the weight ratio of the unreacted excessive polyhydric alcohol, the metal ion complex and the silicate to the total adding amount of the polyhydric alcohol is 1: (0.5-6): (0.5-6). The nucleating agent can improve the crystallization behavior of polyamide so as to shorten the forming period of the polyamide composite material, and meanwhile, the cost of the nucleating agent is reduced, so that the cost of the polyamide composite material is reduced.

The present invention relates to the field of metal ion detection in solution, and in particular to an organic compound for detecting the content of chromium ions in solution and its application. The present invention proposes an organic compound using ethylenebenzopiperazine-pyridine-6-carboxylic acid as an ion complex and connected to a chromogenic group or a fluorescent group, which is a selective chromium ion complexing agent, which can be used for selective elimination and masking of chromium ions and has extremely high selectivity. By introducing a chromogenic group, it can be used for selective color development of chromium ions in various media, spectrophotometric determination, and preparation of color development test papers. By introducing a fluorescent group, it can also become a chromium ion fluorescent indicator, and the content of chromium ions in each solution can be calculated from its fluorescence intensity, which greatly improves efficiency, sensitivity and reproducibility.

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.

A method including contacting a cobalt salt comprising one or more of a cobalt halide or ester with a trialkylaluminum or halodialkylaluminum in a coordinating 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 pressure at a temperature of from about 25°C to about 100°C under conditions to form cobalt carbonyl: and contacting the cobalt carbonyl with a porphyrin metal halide or alkyl and a coordinating compound, and optionally an inert solvent, under conditions to form a complex of a cation of a porphyrin metal halide or alkyl wherein the coordinating compound is coordinated to the metal and an anion of cobalt carbonyl.