27 results about "Copper monosulfide" patented technology

The invention belongs to the technical field of antibiosis and wound healing promotion, and relates to double-response (near-infrared light and hydrogen peroxide double-response photo-thermal / carbon monoxide therapy) antibacterial hydrogel as well as preparation and application thereof. The invention relates to a double-response antibacterial hydrogel. The antibacterial hydrogel is prepared from the following components: drug-loaded nano particles and a hydrogel matrix. The drug-loaded nano particles are prepared by loading dimanganese decacarbonyl (MnCO) into cavities of hollow mesoporous copper sulphide nano particles (HMCuS NPs) and coating the surfaces of the particles with a polydopamine layer (PDA). According to the invention, CO / PTT synergistic treatment of bacterial infected wounds is realized, and the antibacterial effect is significantly improved. An in-vitro antibacterial experiment result shows that the antibacterial hydrogel shows extremely strong inhibition capability on escherichia coli and staphylococcus aureus, and the problem of drug resistance caused by a bacterial biofilm is effectively solved.

The invention discloses a high-transparency PVB intermediate film and a production process and application thereof, and relates to the technical field of PVB intermediate films, the high-transparency PVB intermediate film comprises the following raw materials by weight: 100 parts of PVB resin, 20-30 parts of a composite plasticizer, 0.5-0.9 part of an LDH-based composite antioxidant, 0.5-1 part of an ultraviolet light absorber, 0.1-1.5 parts of nano lanthanum hexaboride, 0.1-1.5 parts of porous hollow nano copper sulphide, and 0.1-2 parts of nano TiO2 / SiO2 core-shell particles. The PVB intermediate film provided by the invention is relatively high in light transmittance, low in haze value, and excellent in oxidation resistance, weather resistance and mechanical strength.

The invention belongs to the technical field of nano-carriers, and particularly relates to a casein-based nano-carrier with slow release and pH / NIR dual response as well as a preparation method and application thereof, casein is combined with hollow copper sulfide nano-particles to load drugs, the nano-carrier with slow release and pH / NIR dual response is generated, and the drug loading rate is as high as 96.84%. Experiments show that the nano-carrier can accurately control drug release under specific pH and near-infrared light irradiation, so that the drug treatment efficiency is improved, and side effects on normal tissues are reduced.

The invention discloses a tellurium-doped copper sulfide-based nano composite material with a core-shell structure as well as a preparation method and application thereof, and belongs to the technical field of zinc ion battery negative electrode materials. The method comprises the following steps: dissolving a copper source, a sulfur source, a carbon source and a tellurium source in a mixed solution of deionized water and ethylene glycol, uniformly stirring and mixing, carrying out hydrothermal reaction and centrifugal cleaning, collecting a precipitation product, and carrying out vacuum drying; and carrying out calcination reaction to obtain the tellurium-doped copper sulfide-based nano composite material with the core-shell structure. The inner-layer microspheres are microspheres formed by stacking tellurium-doped copper sulfide flower-shaped nanosheets; and the outer coating layer is a carbon layer. Through the synergistic effect of tellurium doping and carbon coating, the electron conduction and the structural stability of the material are effectively enhanced, and the cycle performance and the rate capability of the aqueous zinc ion battery are remarkably improved. As a negative electrode of the zinc ion battery, the material can effectively improve cyclic reversibility, has remarkable reversible capacity, improves the performance of the zinc ion battery, and is suitable for industrial production and large-scale energy storage.

The invention relates to the field of chemical synthesis and biomedical materials, and discloses a multifunctional nano-drug and a preparation method and antibacterial application thereof, and the multifunctional nano-drug is mainly composed of a copper sulfide nano-carrier, a bacterial targeting photosensitizer and glucose oxidase (GOx). Wherein the copper sulfide nano-carrier (CuS NPs) has a hollow mesoporous structure and can effectively load drug molecules. The bacterium targeting photosensitizer, namely, D-cysteine functional modified pentafluorophenyl mycogreen (FBC-Cys), can be used for targeting bacteria by utilizing the characteristic that free D-type amino acid is integrated to the end of peptidoglycan on the surface of a cell wall in the cell wall synthesis process of the bacteria. Glucose oxidase (GOx) can efficiently consume glucose in the bacterial microenvironment, and the hunger treatment effect is achieved. The hollow mesoporous copper sulfide nanoparticles are prepared by adopting a one-pot hydrothermal method, synthesis raw materials are easy to obtain, and the method is simple and rapid. And the FBC-Cys and the GOx are loaded to the cavities and the surfaces of the copper sulfide nanoparticles through a physical adsorption effect. The multifunctional nano-drug can target bacterial cell walls, change the bacterial microenvironment, integrate photodynamic therapy and hunger therapy, and achieve a multifunctional antibacterial effect. The antibacterial hydrogel provided by the invention has excellent antibacterial effect and biocompatibility, and can play an excellent role in treatment of future bacterial infection.

The application discloses a preparation method of a fabric with light-absorbing, heat-generating and antistatic composite functions. CuS nanoparticles are dispersed in a dispersion liquid, and tetraethyl orthosilicate is slowly added dropwise. After continuous stirring reaction, the reaction precipitate is dried to obtain silica-coated copper sulfide nanoparticles. The dispersion liquid is a mixed solution of ethanol, water and ammonia water. The silica-coated copper sulfide nanoparticles, disperse dye, crosslinking agent, surfactant, dispersant and deionized water are stirred and mixed, and ultrasonic dispersion is carried out. Then, the adhesive is added and stirred uniformly. Grinding particles are added to the mixed solution for grinding, and the grinding particles are removed through sieving to obtain a finishing liquid. The pretreated polyester fabric is pad-dyed in the finishing liquid, and is dried and solidified. Finally, the fabric product is obtained through washing and drying. The silica-coated copper sulfide nanoparticles realize the combination of light-absorbing, heat-generating, warm-keeping and static elimination functions, and the production cost is low, and the process is simple.

The application discloses a method for controlling low-temperature stress of tomatoes based on nano copper sulfide, and belongs to the technical field of novel cold resistance. The application prepares copper sulfide nanoparticles, and uses the copper sulfide nanoparticles to promote the low-temperature stress resistance of tomatoes. The application controls the low-temperature stress of tomatoes by foliar application of CuS NPs, so that the plant height of the tomatoes under low-temperature stress is increased by 14.96%, and the fresh weight of the aboveground part and the fresh weight of the underground part are respectively increased by 32.21% and 64.37%. The prepared copper sulfide nanoparticles are superior to conventional copper-based materials, sulfur-based materials, traditional cold resistance agents and other sulfur-based nanoparticles in effect.

The present invention discloses an antistatic automotive window film and a preparation method thereof, relating to the technical field of antistatic automotive window film. In the preparation of the antistatic automotive window film, the present invention comprises the following steps: polymerizing pyrrole and 1-ethylene-1H-pyrrole on the surface of fluorine-doped titanium dioxide and indium-doped copper sulfide to produce polypyrrole-coated nanoparticles; reacting 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide with itaconic acid to produce carboxylated DOPO; reacting carboxylated DOPO with 3-imidazole-1-ylpropane-1,2-diol, butanediol, and terephthalic acid to produce polyester; reacting polyester with 1,2-epoxy-7-octene to produce functionalized polyester; and finally, calendering the functionalized polyester, hydrogenated silicone oil, and polypyrrole-coated nanoparticles to produce the antistatic automotive window film. The antistatic automotive window film prepared by the present invention has excellent infrared blocking, flame retardancy, antistatic, and mechanical properties.

The object of the present invention is to provide a secondary battery that uses zinc as the negative electrode and copper(II) sulfide as the positive electrode, and has charge-discharge characteristics that enable high-capacity discharge at high potential using an alkaline electrolyte. [Solution] A secondary battery comprising a current collector containing copper, a positive electrode having a positive electrode active material layer, a gel electrolyte holding an alkaline aqueous solution, and a negative electrode having a negative electrode active material layer, wherein the positive electrode active material in the positive electrode active material layer is copper(II) sulfide, and the negative electrode active material in the negative electrode active material layer contains zinc.

The application relates to a preparation method of an antibacterial hydrogel with enhanced antioxidation activity and NIR / pH dual responsiveness, and the preparation method is as follows: hollow copper sulfide nanoparticles are first prepared, the hollow copper sulfide nanoparticles are dispersed into a chitosan solution to obtain a chitosan solution containing the hollow copper sulfide nanoparticles, then a crosslinking agent epigallocatechin gallate (EGCG) solution and a 3-formylphenylboronic acid solution (3-FPBA) are sequentially added for crosslinking, so as to obtain the antibacterial hydrogel with enhanced antioxidation activity and NIR / pH dual responsiveness. The hydrogel is used for wound dressings in biomedical engineering materials. The preparation method is simple, the preparation process is green and safe, higher solid-like performance is exhibited, meanwhile, excellent injectability is maintained, and the hydrogel can play a greater advantage in the healing process of bacterial wound infection.

The invention discloses an antistatic automobile window film and a preparation method thereof, and relates to the technical field of antistatic automobile window films. When the antistatic automobile window film is prepared, pyrrole and 1-ethylene-1H-pyrrole are polymerized on the surfaces of fluorine-doped titanium dioxide and indium-doped copper sulfide, and polypyrrole-coated nanoparticles are prepared; the preparation method comprises the following steps: reacting 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide with itaconic acid to prepare carboxylated DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide); the carboxylated DOPO, 3-imidazole-1-propane-1, 2-diol, butanediol and terephthalic acid are subjected to a reaction, and polyester is prepared; the preparation method comprises the following steps: carrying out reaction on polyester and 1, 2-epoxy-7-octylene to prepare functional polyester; the functional polyester, the hydrogen-containing silicone oil and the polypyrrole coated nano-particles are subjected to a calendering process to prepare the antistatic automobile window film. The antistatic automobile window film prepared by the invention has excellent infrared barrier, flame retardant, antistatic and mechanical properties.

The invention belongs to the field of polysulfide-based flow battery materials, and discloses a preparation method of non-stoichiometric nano copper sulfide, which comprises the following steps: preparing a sulfur ion-containing compound into a solution to obtain a first precursor solution; copper salt and salt containing doping elements are prepared into a solution, and a second precursor solution is obtained; dropwise adding the second precursor solution into the first precursor solution, continuously stirring the first precursor solution at the same time, and performing suction filtration on an obtained reactant to obtain the non-stoichiometric nano copper sulfide. The invention also discloses an application of the non-stoichiometric nano copper sulfide. According to the invention, the preparation of the high-performance non-stoichiometric nano copper sulfide catalyst is realized through a multi-parameter coordinated regulation and control technology, and it is ensured that when the prepared non-stoichiometric nano copper sulfide catalyst is prepared into a polysulfide-based flow battery negative electrode for a polysulfide-based flow battery; the polysulfide-based flow battery has high specific capacity and energy density, excellent cycle performance and good commercial application prospect.

The present disclosure relates to an electrode including a catalyst wherein the catalyst including a nitrogen-doped copper sulfide / oxide, a metal-air battery including the same, and a method of preparing the catalyst including a nitrogen-doped copper sulfide / oxide. The metal-air battery of the present disclosure can operate via aerobic and anaerobic battery modes.

The present invention discloses a preparation method and application of a near-infrared responsive lipid nanoparticle system aggregated with copper sulfide nanoparticles. This method realizes the enhanced permeability and retention of small-sized copper sulfide nanoparticles in tumor therapy and effectively improves the tumor treatment effect. A polypeptide that can respond to transglutaminase overexpressed in tumor sites and undergo crosslinking aggregation is modified on the copper sulfide nanoparticles, and co-assembled with a photosensitizer ICG and a temperature-sensitive liposome to form a nanodelivery system, which enhances its ability to penetrate and aggregate at the tumor site. Meanwhile, it realizes the synergistic tumor treatment effect of PDT and PTT, and can be used for further preparation of drugs for photothermal-photodynamic synergistic tumor therapy.

The application discloses a hydrophobic temperature-sensitive mesoporous silica drug delivery system and a preparation method and application thereof, and the drug delivery system takes copper sulfide nanoparticles as a core, takes amino-modified hydrophobic mesoporous silica as a shell, and is coated with a surface coating of a temperature-sensitive polymer PEG-p(AAm-co-AN), wherein the hydrophobic mesoporous silica is prepared from silane coupling agent A151 containing a carbon-carbon double bond and a silicon source TEOS; the drug delivery system has photothermal effect and upper critical solution temperature responsiveness, can load a large amount of hydrophobic drugs such as beta-elemene, and can realize controllable release under 980nm near-infrared light irradiation. The phase transition temperature of the delivery system is 43 DEG C, so that the combination of photothermal therapy and chemotherapy can be realized while the drug release is controlled, so as to achieve more effective tumor inhibition. In addition, the preparation method is simple and has wide application prospect.

The embodiment of the invention provides a preparation method of sulfuration-corrosion-resistant nano copper sulfide coated ZrN ceramic. The preparation method comprises the following steps: providing nano copper powder, ZrN powder and high-purity carbon powder; filling sulfur oxide gas into the nano copper powder; respectively adding the ZrN powder and the high-purity carbon powder into the nano copper powder, and carrying out argon-filled ball-milling powder mixing and vacuumizing to obtain mixed powder; and carrying out vacuum pressure sintering on the mixed powder, and cooling to obtain the nano copper sulfide coated ZrN ceramic. The process for preparing the nano copper sulphide coated ZrN ceramic is simple, and the production cost per kilogram is only 45-56% of that of a stellite alloy, so that the production cost can be remarkably saved. The prepared nano copper sulfide coated ZrN ceramic is compact in structure, excellent in sulfuration corrosion resistance and obviously high in cost performance, and it is possible to replace currently-used expensive Stelforce alloy.

The invention discloses a carbon fiber-copper sulfide solar-driven photovoltaic power generation film with a multi-scale hierarchical structure and a preparation method thereof, and relates to a structure, preparation and seawater desalination application of the carbon fiber-copper sulfide solar-driven photovoltaic power generation film. The method comprises the following steps: electroplating high-purity copper on the surface of a carbon fiber felt by using an electroplating vulcanization method to form a carbon fiber-copper felt, and then depositing the carbon fiber-copper felt in a sodium sulfide solution for reaction to form the carbon fiber-copper sulfide solar driven photovoltaic power generation film with a multilevel structure. And in cooperation with hierarchical structures of the carbon fiber felt and the copper sulphide nano array under different scales, light absorption is improved based on a light trapping effect, so that the interface evaporation rate is increased. In the interface evaporation process, water interacts with the carbon fiber-copper sulfide film, and electric energy is generated under the action of the double electric layers. Under the illumination condition, the carbon fiber-copper sulfide light absorber is used for seawater desalination, and under the illumination intensity of 1 sun, the steam permeability can reach 2.37 kg / m < 2 >. H, the solar steam conversion efficiency reaches 94.33%, the output voltage is 0.91 V, and the current density is 2.93 mA / cm < 2 >.

The invention discloses a method for controlling low-temperature stress of tomatoes based on nano copper sulfide, and belongs to the technical field of novel cold resistance. According to the invention, the copper sulfide nanoparticles are prepared and are used for promoting the tomato to resist low-temperature stress. According to the method, the low-temperature stress of the tomatoes is controlled by applying the CuS NPs on the leaf surfaces, so that the plant height of the tomatoes under the low-temperature stress is increased by 14.96%, and the fresh weight of the overground part and the fresh weight of the underground part are increased by 32.21% and 64.37% respectively. The effect of the prepared copper sulfide nanoparticles is better than that of a conventional copper-based material, a sulfur-based material, a traditional anti-cold agent and other sulfur-based nanoparticles.

The application discloses a kind of composite hydrogel for wound repair and its preparation method and application, belong to medical material technical field.Methyl methacrylated gelatin, hydroxyethyl methacrylate and oxidized dextran are mixed, copper sulfide nanoparticles, crosslinking agent and photoinitiator are added, stirred uniformly and placed in mold, and UV irradiation is used.Aldehyde group on ODex chain and amino group on GelMA chain occur Schiff base reaction, form dynamic covalent bond, constitute reversible crosslinking point, copolymerization reaction occurs between HEMA and methacryloyl on GelMA molecular chain, and stable covalent crosslinking network is formed.In this process, CuS NPs are effectively captured and stably dispersed in the network by physical action, and the crosslinked hydrogel is soaked in deionized water to balance, to obtain the target composite hydrogel.The composite hydrogel has excellent mechanical strength, pH-responsive swelling performance and biocompatibility, and can realize efficient antibacterial and endogenous immune regulation by combining near-infrared photothermal therapy, effectively promoting wound repair.

The invention belongs to the field of pharmaceutical preparations, and discloses a brain glioma targeted multifunctional nano-enzyme and a preparation method thereof.The multifunctional nano-enzyme is prepared by the steps that copper sulfide nanoparticles wrapped by polydopamine serve as an inner core, folic acid and glucose oxidase are modified to the surfaces of the nanoparticles to form nano-enzyme, and then the nano-enzyme is prepared into the brain glioma targeted multifunctional nano-enzyme. Lactoferrin is further modified on the surface of the nano-enzyme through electrostatic adsorption, and the brain glioma targeted multifunctional nano-enzyme is constructed.

The application discloses a preparation of a composite electrode and application of the composite electrode in treatment of wastewater by coupling dielectric barrier plasma discharge, and is characterized in that: a conductive carbon cloth is used as a substrate, a non-metallic compound g-C3N4 and a metallic compound CuS are in-situ loaded on the carbon cloth by a high-temperature calcination method and a hydrothermal method, and silver nanoparticles are doped in a precursor electrode by a soaking-reduction method, so that the photoelectric response performance of the composite electrode is improved; the prepared composite electrode is used as a reaction electrode and is placed in a reaction container, wastewater to be treated is immersed in the composite electrode, then the reaction container containing the composite electrode and the wastewater to be treated is placed in a dielectric barrier discharge area of a dielectric barrier discharge reactor, a discharge voltage is adjusted, and reaction is carried out. The prepared composite electrode is combined with the dielectric barrier plasma, and the silver-doped non-metallic compound / metallic compound has good adaptability and degradation effect on sterilization of bacteria and degradation of antibiotics in the plasma discharge system.

The invention discloses a preparation method of polyamide fiber, and belongs to the technical field of synthetic fiber modification treatment. The preparation method comprises the following steps: adding polyamino organosiloxane (at) CuS-PDA, nylon 66 salt and a nylon antioxidant into an extruder according to a weight part ratio of 1: (10-20): (0.01-0.02), and carrying out blending granulation to obtain the high-strength antibacterial polyamide fiber. Nano copper sulphide with a photo-thermal antibacterial effect and polydopamine with good mechanical properties are introduced into a polyamide fiber structure, and the high-strength antibacterial polyamide fiber is obtained.

The invention discloses a near-infrared response copper sulfide nano-composite as well as a preparation method and application thereof, and belongs to the technical field of nano-drugs. The invention relates to a near-infrared response copper sulfide nano composite, which comprises CuS nano particles, 2 ', 2'-difluorodeoxycytidine (GEM), polyethyleneimine (PEI) and folic acid (FA), cuS nanoparticles are used as a carrier, 2 ', 2'-difluorodeoxycytidine (GEM) is carried on the CuS nanoparticles to form a structural main body, polyethyleneimine (PEI) is used for modifying the structural main body, and folic acid (FA) is used as a tumor cell targeting agent and is modified on the surface of the structural main body. The nano compound integrates chemotherapy / PTT / CDT and a copper death effect, so that multi-mode combined anti-tumor treatment is realized, and an innovative solution is provided for anti-tumor treatment.

The invention relates to a high-added-value recovery method for copper in black powder lithium-rich copper-containing pickle liquor of a decommissioned lithium iron phosphate battery, and belongs to the technical field of lithium ion batteries and solid waste resource utilization. The lithium-rich copper-containing pickle liquor is subjected to targeted sulfuration and separation treatment to obtain acidic sulfuration slag and lithium-rich pickle liquor, the acidic sulfuration slag is subjected to water washing treatment to obtain sulfuration slag and dilute acid liquor, and the sulfuration slag is subjected to desulfurization treatment to obtain nano copper sulfide and a sulfur-containing solution. The method is simple to operate, high in lithium recovery rate, high in additional value of copper byproducts, high in overall economic value and suitable for black powder pickle liquor of various retired lithium iron phosphate batteries.

The invention discloses a preparation method of a hydroxyapatite / 58S bioactive glass composite ceramic bone scaffold of a PLA nano CuS composite coating with a photo-thermal therapy function. The method comprises the following steps: (1) preparing ceramic slurry from hydroxyapatite, 58S bioactive glass powder and photosensitive resin according to a preset proportion, forming by adopting a photocuring technology, and degreasing and sintering to obtain a porous ceramic bracket; and (2) uniformly dispersing the nano copper sulphide in a PLA / organic solvent system through ultrasonic dispersion and magnetic stirring methods, and constructing a nano composite coating on the surface of a ceramic matrix by adopting a dip-coating method to obtain the composite bone scaffold with the PLA loaded with the nano copper sulphide. The 58S bioactive glass can induce nucleation and growth of bone-like apatite and improve the biological activity of the stent; the PLA nano CuS composite coating permeates into micropores and cracks of the ceramic stent, has a hole sealing effect, forms mechanical interlocking, and can effectively improve the mechanical property. The PLA nano CuS composite coating generates a photothermal effect under near-infrared light illumination, so that controllable slow release and photothermal conversion of Cu are realized, and the PLA nano CuS composite coating has long-acting antibacterial and photothermal tumor suppression functions. The scaffold has important application value in the fields of bone defect repair and postoperative tumor prevention and treatment.

This invention discloses a method for preparing nylon fiber, belonging to the field of synthetic fiber modification technology. The preparation method includes the following steps: polyamino organosiloxane@CuS-PDA, nylon 66 salt, and nylon antioxidant are added to an extruder in a weight ratio of 1:10~20:0.01~0.02 for co-blending and granulation to obtain the high-strength antibacterial nylon fiber. This invention, through the synergistic effect of metal coordination and chemical covalent crosslinking, introduces nano-copper sulfide with photothermal antibacterial effect and polydopamine with good mechanical properties into the nylon fiber structure, thus obtaining high-strength antibacterial nylon fiber.

The invention discloses a functional material for promoting healing of diabetic wounds as well as a preparation method and application of the functional material, and belongs to the technical field of biomedical materials. The functional material is a copper sulfide-polyethyleneimine nano composite material (CuS-PEI). The preparation method of the CuS-PEI nano composite material comprises the following steps: firstly, preparing copper sulfide nano particles, and then carrying out surface modification on the copper sulfide nano particles by using polyethyleneimine to obtain the CuS-PEI nano composite material. The invention is mainly applied to preparation of diabetes wound treatment drugs or dressings. Under the irradiation of near-infrared second-area light, the material generates a photothermal effect to realize physical sterilization; meanwhile, under double stimulation of photo-thermal and acidic microenvironments, the material can controllably degrade and release copper ions (Cu < 2 + >) and hydrogen sulfide (H2S). Released Cu < 2 + > plays a chemical bacteriostatic role, and H2S is used for inhibiting inflammation and promoting tissue regeneration. According to the invention, photo-thermal antibacterial, ion bacteriostasis, anti-inflammatory and regeneration promotion functions are integrated, and an efficient and safe new strategy is provided for treatment of diabetic refractory wounds.