10 results about "Free solution" patented technology

This invention discloses a method for preparing a zinc-based solid electrolyte membrane based on a polycarbonate-based ionic liquid. In the presence of a catalyst, carbon dioxide and epichlorohydrin are alternately copolymerized at 25-70°C and 2.0-4.0 MPa carbon dioxide to obtain a polycarbonate with chloromethyl side groups, which is then purified by dissolution / precipitation. A side group substitution reaction is carried out by adding 1-methylimidazolium to a polar solvent to obtain an imidazolium halide-type ionized polycarbonate. Subsequently, a zinc-free solution is used... 2+ The zinc-based solid polymer electrolyte membrane was obtained by anion exchange with TFSI-salt followed by desalting and purification. The ionic liquid was then mixed with zinc salt, and a membrane was fabricated using a casting method, followed by drying and peeling to obtain the membrane. The large volume and high degree of charge delocalization of anions in the ionic liquid are beneficial for reducing ion-pair interactions, providing a better ion transport environment for the zinc-based solid electrolyte membrane and addressing the issue of Zn content in existing zinc-based solid electrolytes. 2+ It has strong interactions with anions and polymer polar groups, which can easily lead to increased resistance to ion migration.

The invention relates to the field of material analytical chemistry and biochemistry, and provides a continuous batch pretreatment device and method for proteomics, glycoproteomics and phosphorylated proteomics samples. According to the continuous batch pretreatment device for the proteomics, glycoproteomics and phosphorylated proteomics samples, under the assistance of the filler, the whole process of protein denaturation, aggregation capture, enzymolysis and complete glycopeptide and phosphorylated peptide enrichment in biological samples can be achieved. Compared with a free solution method conventionally used in proteomics, the sample pretreatment method based on the device has the advantages that the sample treatment time can be effectively shortened, and continuous analysis of mass proteome, glycoprotein group and phosphorylated proteome of trace protein samples can be realized; the method is expected to be widely applied to the aspects of disease occurrence mechanisms, drug action mechanisms, clinical detection, biomarker discovery and the like.

The invention relates to a carboxymethyl chitosan-amorphous calcium phosphate composite anti-caries material as well as a preparation method and application thereof, the composite anti-caries material is a composite gel system and comprises carboxymethyl chitosan, amorphous calcium phosphate and glycerol, and hydroxyapatite nanowires can be selectively added into the carboxymethyl chitosan-amorphous calcium phosphate composite anti-caries material. The composite anti-caries material provided by the invention successfully solves the ubiquitous problems of the existing fluoride-free remineralization material that the mineralization efficiency needs to be improved, the clinical operability is poor and the like, and provides a novel fluoride-free scheme which is safe, efficient and convenient to use for prevention and treatment of early caries.

The present application belongs to the field of corrosion-resistant iron-nickel-based alloys. More particularly, it relates to a method for eliminating precipitated phases of N08028 alloy after forging without solid solution. The method comprises the steps of electrode preparation, crystallizer preparation, polishing the copper bottom plate of the bottom water tank using a polishing device, placing four arc initiators at the center of the carbon steel plate, filling argon into the crystallizer, preparing slag, controlling the steady-state melting rate during smelting, using fast forging + radial forging for forging, and directly water cooling after radial forging without solid solution, so that the total content of precipitated phase intermetallic compound phase, nitride phase and carbide phase is not more than 1.0%, and the content of sigma phase is not more than 0.2%.

The invention discloses an air purification material with formaldehyde removal, antibiosis and deodorization functions and a preparation method of the air purification material. The method comprises the following steps: preparing a base material: crushing one or more of aluminum oxide, silicon dioxide, zeolite, montmorillonite and sepiolite inorganic porous materials into powder; fully stirring with calcium superphosphate powder, adding an adhesive, and sintering to prepare a granular base material; preparing a chlorine dioxide activation-free solution; and soaking the sintered particle base material in a chlorine dioxide activation-free solution, carrying out ultrasonic dispersion, and drying the particles subjected to ultrasonic dispersion in a drying box to prepare the air purification material with formaldehyde removal, antibacterial and deodorization functions. The material has three functions of formaldehyde removal, antibiosis and deodorization at the same time, has good mechanical properties, guarantees good processability, and can specifically solve the problems that an existing air purification material adsorbs peculiar smells and toxic gases in a manner of treating both symptoms and root causes, and is weak in sterilization capability.

The utility model discloses a filtering device before mixing of a reaction raw material mixer, which relates to the technical field of ester exchange reaction and comprises an ester exchange reaction tower, one side of the ester exchange reaction tower is fixedly connected with a first connecting pipeline, one side of the first connecting pipeline far away from the ester exchange reaction tower is fixedly connected with a venturi jet device, and the venturi jet device is fixedly connected with a second connecting pipeline far away from the ester exchange reaction tower. An amyl acetate buffer tank, a methanol buffer tank and a sodium methoxide buffer tank are arranged on one side, far away from the ester exchange reaction tower, of the Venturi jet device. According to the utility model, crystals separated from methanol and sodium methoxide solution are fixedly filtered through the filter frame, so that the solution entering the venturi jet device does not contain separated impurities, and the separated crystals can block a nozzle, a suction chamber or a diffuser pipe of the venturi jet device. After filtering, impurities are removed, fluid flows smoothly, and the blocking risk is remarkably reduced. And after the impurity-free solution enters the Venturi jet device, the fluid flows more smoothly and is more uniformly mixed.

Disclosed and claimed are compositions containing a calibrator and a stabilizer wherein the stabilizer comprises diethylaminoethyl-("DEAE") dextran, D-sorbitol, a buffer, and a nonionic surfactant wherein the weight ratio of D-sorbitol to DEAE-dextran is from about 1: 1 to about 5: 2; wherein the stabilizer is substantially free of bovine serum albumin; and wherein the calibrator is stable under frozen storage conditions and remains stable when thawed and preserved at a temperature of about 2 DEG C to about 10 DEG C. Methods of use of the claimed compositions and kits comprising the claimed compositions are also disclosed.

Increasing concerns about cytotoxicity caused by traditional ophthalmic product preservatives have driven demand for preservative-free solutions while challenging manufacturers to maintain sterility and safety standards. Inherent user risks have been combined with random manufacturing contamination, resulting in devastating product recalls in recent years. The present invention is a bioactive, affinity filtration system for medical dispensing devices engineered to remove preservatives and contaminants from ophthalmic and other medical solutions when administered. This “just in time” filtration enables manufacturers to follow established preservative practices to ensure safety while delivering a “preservative free” solution upon administration. Without altering the therapeutic formulation, the invention combines adsorption and absorption filtration mechanisms with engineered fullerene derivatives and cellulose acetate membranes to remove preservatives like benzalkonium chloride, thimerosal, and stabilized oxychloro complexes. The invention is designed for integration into established manufacturing, packaging, and stability quality control protocols consistent with the most rigorous antimicrobial patient safety standards.

Harmful algal blooms (HABs) such as red tide blooms can be mitigated or controlled by applying a water-soluble algicidal unsaturated fatty acid salt or soap, or a methanol-free solution of an unsaturated algicidal fatty acid, to water containing a HAB concentration, wherein the salt, soap or solution reduces the HAB concentration.

The invention relates to a neodymium-iron-boron magnet without heavy rare earth addition. The general formula of the neodymium-iron-boron magnet is R < x > T < 100-x-y-z-a-b > T < myTg < z > BaH , wherein x belongs to [13.3, 17], y belongs to [0.3, 5], z belongs to [0.1, 0.5], a belongs to [5, 5.8], and b belongs to [0, 0.2]; moreover, the neodymium-iron-boron magnet satisfies the following condition: the neodymium-iron-boron magnet has a main phase R2T14B and a grain boundary phase. According to the neodymium-iron-boron magnet, under the condition that no heavy rare earth is added, Hcj is increased to 17 kOe to 23 kOe, Br is 12 kGs to 15 kGs, the squareness is not lower than 94% through cooperative control over components, grain boundaries, three-stage tempering treatment and the like, and a high-performance and low-cost heavy rare earth-free solution is provided for the fields of wind power generation, new energy automobiles, industrial servo, humanoid robots and the like.