39results about How to "Strong antibacterial ability" patented technology

The invention discloses a self-crosslinking antibacterial hydrogel material containing carboxymethyl chitosan / oxidized sodium alginate. The material is made from the following components by mass percent: 1-35% of carboxymethyl chitosan, 1-25% of oxidized sodium alginate, 0.01-0.5% of nano-silver and distilled water. The material is prepared by the following steps: preparing the carboxymethyl chitosan by a carboxymethylation reaction of chitosan at the temperature of 10-80 DEG C; preparing the oxidized sodium alginate by an oxidation reaction of sodium alginate at the temperature of 10-45 DEG C; respectively preparing aqueous solution of the carboxymethyl chitosan and aqueous solution of the oxidized sodium alginate; adding the nano-silver solution and blending at certain ratio; and allowing self-crosslinking of the components at the temperature of 10-50 DEG C to produce the antibacterial hydrogel material. The antibacterial hydrogel material has the advantages of low cost, environmental protection, simple process and the like; as the carboxymethyl chitosan has good biocompatibility, the oxidized sodium alginate is nontoxic to human body, and the nano-silver has excellent antibacterial property, the obtained material can be applied to wound dressing, hemostatic materials and the like.

The invention provides a preparation method for a viscose containing wormwood extract. The preparation method comprises the following steps: preparing an antibacterial agent solution, adding a dispersing agent, adding sodium carboxymethylcellulose, blending with a spinning solution, spinning, and post-treating. The prepared viscose has the advantages that the dyeing effect is good, the antibacterial ability is high, the inhibition ratio to staphylococcus aureus is 99.1-99.3%, the inhibition ratio to escherichia coli is 98.9-99.3%, and the inhibition ratio to candida albicans is 93.6-95.7%. The prepared viscose has high strength and wet modulus; the dry strength is 6.21-6.34cN / dtex, the wet strength is 4.71-4.94cN / dtex, the elongation at break is 23.4-25.5%, and the wet modulus is 0.63-0.65cN / dtex.

The invention provides a traditional Chinese medicament containing far-infrared-anion nano silver, zinc and selenium elements for externally treating burns and scalds, belonging to the production technical field of preparation of the medicament for externally treating burns and scalds by a high-tech nanometer technology. Burns and scalds are injuries on a body surface tissue caused by a heat source, and large-area deep burns and scalds can be complicated by shock, septicemia and the like; and the content of zinc, copper, ferrum and selenium is low and the content of nickel and aluminum is high in human body, so burn shock and lead poisoning easily occur. In the traditional Chinese medicament, rhizoma coptidis, phellodendron bark and radix scutellariae can clear away heat and toxic materials and realize antibiosis and anti-inflammation; rhubarb can improve local disturbance of blood circulation; and tree peony bark, red peony root and dried rehmannia root can clear away heat, cool blood and activate blood circulation and reduce exudates on a wound surface. In general, the traditional Chinese medicament can be mainly used for clearing away heat and toxic materials, activating blood circulation to dissipate blood stasis, resisting exudation, promoting growth of epithelial cells, accelerating wound healing and realizing no black spots after healing; and a broad-spectrum high-effective nano silver system '(AT) antimicrobial' is added to the traditional Chinese medicament, thus the nanometer technology greatly improves the curative effect of the medicament and provides the latest scientific research direction for quick recovery of burns and scalds.

The invention discloses a composition with a function of repairing skin and a gel agent of the composition. The composition with the function of repairing skin comprises the following components in percentage by weight: 33%-83% of chitosan derivative and 17%-67% of mycose. The composition with the function of repairing skin has broad-spectrum antibacterial property being stronger than mono-component, is high in moisture retention, capable of protecting the wound surface, facilitating growth of bacteria for regulating micro-ecological balance of the human body, facilitating the growth of beneficial bacteria, accelerating the wound healing and is low in cost.

The invention discloses a medical antibacterial dressing, which is composed of the following raw materials in parts by weight: 1 to 53 parts of matrix, 1 to 5 parts of nano zinc oxide, 1 to 10 parts of glycerin, 3 to 7 parts of osmotic agent, and 30 to 350 parts of purified water. The invention further discloses a preparation method of the medical antibacterial dressing. The preparation method comprises the following steps: completely dissolving matrix into purified water, then adding nano zinc oxide, glycerin, and osmotic agent into the water, evenly stirring the solution by a stirrer, adding an adjusting agent to adjust the pH value, and finally removing the bubbles to obtain the finished product. The prepared antibacterial dressing contains a physical nano antibacterial agent (nano zinc oxide), and thus has a strong antibacterial performance; and the inhibition rates on staphylococcus aureus, pseudomonas aeruginosa, and candida albicans are all over 95%. Moreover, the dressing has the advantages of good biological safety and biocompatibility, is capable of promoting the wound healing, does not have any side or toxic effect, and is stable, safe and reliable. The in-vitro cytotoxicity of the dressing is not more than level one.

The invention discloses an antibacterial plastic, which is made of the following raw materials in parts by mass: 28-30 parts of polyvinyl chloride, 4-7 parts of phenyl silicone oil, 4-5 parts of aniline, and 7-9 parts of vinyltrimethoxysilane 1-3 parts of calcium zinc salt, 4-5 parts of titanate, 3-5 parts of silicone rubber, 4-7 parts of polypropylene fiber, 5-8 parts of carbon fiber, 6-7 parts of titanium dioxide, 4 parts of nano-alumina ‑6 parts, 6‑8 parts of hydroxypropyl methylcellulose, 4‑6 parts of sorbitol, 5‑8 parts of zinc oxide. The invention has strong antibacterial ability, can prevent bacterial growth, has high strength and good heat resistance.

The invention discloses a method for preventing and treating fruit tree meloidogynosis by adopting a carboxymethyl chitosan protective film, and relates to a formula of a novel biological pesticide for preventing and treating fruit tree meloidogynosis and a preparation method of the novel biological pesticide. The preparation method comprises the steps of: preparing solution A in the weight ratio of water to citric acid to sodium hydroxide to chitosan oligosaccharide citrate of being 100: (8-12): (4-6): (0.5-2); preparing solution B in the weight ratio of water to potassium iodide to iodine to bioactive organic iodine of being 100: (0.3-0.8): (0.15-0.3): (0.01-0.02); preparing solution C in the weight ratio of water to carboxymethyl chitosan of being 100: (4-6); preparing solution D in the weight ratio of water to sodium alginate of being 100: (0.01-0.03); and finally, adding the solution B, the solution C and the solution D into the solution A in sequence. The novel biological pesticide can be used for effectively protecting wounds and promoting wound healing when the root systems of fruit trees have wounds because of grafting, meloidogynosis tumor removal and the like.

The invention discloses a preparation method of a rare-earth-added water-soluble antibacterial ceramic glaze. The preparation method is characterized by comprising the following technical steps: in a reactor, adding, by mass, 25-35% of ammonium hexafluorozirconate, 2-5% of sodium hexametaphosphate, 40-50% of zinc silicofluoride, 8-18% of ammonium fluoroborate, 2-6% of silver nitrate, and 5-15% of lanthanum nitrate, wherein the sum of each component is 100%; and performing grinding for uniform mixing to obtain the rare-earth-added water-soluble antibacterial ceramic glaze. A use method of the rare-earth-added water-soluble antibacterial ceramic glaze comprises: dissolving the rare-earth-added water-soluble antibacterial ceramic glaze in water to prepare a saturated solution; uniformly spraying the solution of the rare-earth-added water-soluble antibacterial ceramic glaze onto a ceramic biscuit by a sprayer; and baking the ceramic biscuit at a high temperature of 950-1000 DEG C to obtain a finished product. The ceramic glaze has excellent bactericidal activity and good glossiness.

The invention discloses a composite material comprising a low-cost high-efficiency broad-spectrum antibacterial polypropylene functional master batch and a preparation method thereof. The composite material is prepared from the following raw materials in parts by weight: 5-10 parts of antibacterial functional master batch, 48-93 parts of conventional polypropylene, 0-40 parts of inorganic filler, 8-20 parts of elastomer, 0.1-1 part of antioxidant and 0-3 parts of other aids. The technical scheme of the invention reduces the influence of heavy addition of the antibacterial agent on other properties of the material on the premise of lowering the material cost. The prepared antibacterial polypropylene composite material has the characteristics of high efficiency, broad antibacterial spectrum, favorable mechanical properties and the like.

The invention discloses a polypeptide molecule including: (a) an amino sequence of the polypeptide molecule, wherein the amino sequence is represented as the SEQ ID No.1; and (b) a polypeptide molecule which is derived from (a) and has same biological functions of the polypeptide molecule (a), wherein the polypeptide molecule (b) is obtained since one or more amino acids are deleted, inserted or replaced in the polypeptide molecule limited in (a). A molecular weight of the polypeptide molecule is 2289.91 g / mol and an isoelectric point of the polypeptide molecule is 11.1. The polypeptide molecule can be applied for preparing materials which is anti-bacterial and can promote growth of osteoblast. The invention provides the polypeptide molecule which can be compounded with other compounds simply, can be applied in materials in various types and has effects of promoting growth of the osteoblast and being anti-bacterial. The polypeptide molecule is free of toxic and harmful effect on human body. The polypeptide molecule is simpler in synthetic method compared with a large-molecular polypeptide and can be industrially produced.

The invention relates to the technical field of paint industry, in particular to an environment-friendly interior wall paint. It is prepared from the following raw materials by mass: 40-50 parts of calcined shell powder, 15-20 parts of light calcium carbonate, 20-25 parts of titanium dioxide, 15-20 parts of hydroxypropyl cellulose, 0.5-20 parts of alkaloid 1 part, 0.5-1 part of wetting agent, 10-15 parts of vegetable glue, 3-5 parts of chitosan, 0.5-1 part of nano titanium dioxide silver chelating agent. The environment-friendly interior wall coating of the present invention adopts natural shell powder as raw material, is made through grinding, high-temperature firing and special process, and has the function of absorbing and decomposing these harmful gases; the nano-titanium dioxide silver chelating agent has both the visible light of nano-titanium dioxide itself It has the functions of sterilization, anti-virus, and degradation of bacteria and organic matter under ultraviolet light, and has strong anti-bacterial and virus-killing effects of nano-silver without light source, and has the advantages of strong anti-bacterial ability, wide range, and long anti-bacterial time; plant glue Does not emit formaldehyde, benzene, ammonia and other harmful gases.

The invention relates to a broad-spectrum long-acting antibacterial spraying agent convenient to use and a preparation method thereof. The spraying agent comprises the following raw material components in parts by weight: 25 parts of a polymer emulsion, 1-5 parts of a nano-silver antibacterial agent, 1-5 parts of a nano-zinc antibacterial agent, 0.5-3 parts of zeolite powder, 3-5 parts of an organosilicon waterproofing agent, 2-10 parts of a waterborne polyurethane adhesive, 0.2-1 part of a nonionic dispersant, 0.5-0.8 part of an organic guanidine antibacterial agent, 0.4-0.6 part of a chitosan antibacterial agent, 0.1-0.2 part of an organosilicon antifoaming agent, 0.1-0.4 part of an organosilicon substrate wetting agent, 0.2-0.5 part of a coalescing agent, 0.2-0.5 part of a pH regulatorand 20-45 part of ultrapure water. The polymer emulsion is a mixture of a polyacrylic acid emulsion and a polylactic acid emulsion in a weight ratio of 3:1, can perform broad-spectrum sterilization for a long time, is high in bactericidal power, free of toxic and side effects and convenient to use, is suitable for families and public places including humid and hot environments, can create an effective sterile environment, and guarantees sanitation and health of people.

The invention relates to the field of marine antifouling. According to the invention, 1,2-benzo[d]isothiazoline-3-one (BIT) and cyanuric chloride (CNC) are used as raw materials to prepare a BIT-allyloxy triazine monomer, and a copolymerization reaction is conducted on the BIT-allyloxy triazine monomer and an acrylate monomer to prepare the acrylate antifouling resin grafted with a BIT active structural unit. A method for preparing a BIT-triazinyl antifouling resin monomer comprises the steps that under the condition of a temperature in a range of 0 DEG C to 25 DEG C, CNC reacts with allyl alcohol to obtain alkenyloxytriazine, and then the alkenyloxytriazine reacts with BIT to obtain the BIT-triazinyl antifouling resin monomer. The invention also discloses a structure and a method of BIT-triazinyl marine antifouling resin prepared through a copolymerization reaction of the monomer and acrylate. The BIT-triazinyl antifouling resin monomer provided by the invention has excellent polymerizability; and the BIT-triazinyl anti-fouling resin obtained through self-polymerization of the BIT-triazinyl antifouling resin or copolymerization of the BIT-triazinyl antifouling resin monomer with other monomers has high molecular weight, active substances are not prone to diffusion and loss in the using process of the resin, and meanwhile, a release rate can be controlled through hydrolysis ofester bonds, so the anti-fouling active substances are efficiently utilized, and the BIT-triazinyl anti-fouling resin is expected to become a green efficient novel marine anti-fouling coating.

The invention discloses a liquid preparation. The liquid preparation contains 0.13-0.15g / L of chlorpheniramine, 0.69-0.85g / L of dextromethorphan, 0.37-0.45g.L of phenylephrine, 0-100g / L of an organic solvent and 0-1g / L of an antiseptic. The liquid preparation has the advantages of good stability and strong bacteriostasis ability, and is suitable for being orally taken and being taken by children. The invention also discloses a preparation method of the liquid preparation. The preparation method has the advantages of simple process and high product quality stability.

The invention discloses marine lactobacillus plantarum SS-128 and application thereof in aquatic product preservation, belonging to the technical field of food preservation. The marine lactobacillus plantarum SS-128 is preserved in China General Microbiological Culture Collection Center with an accession number is CGMCC No. 17003. The lactobacillus plantarum SS-128 is derived from the intestinal tract of marine cold-water fish, grows and propagates rapidly under a low-temperature refrigeration condition, is high in antibacterial ability, and can reduce the volatile basic nitrogen level of aquatic products, inhibit spoilage of the aquatic products and prolong the shelf life of the aquatic products. The marine lactobacillus plantarum SS-128 provided by the invention can be applied to the field of biological preservation of aquatic products.

The invention discloses an antibacterial nylon filament. The filament comprises a skin layer fiber and a core layer fiber, wherein the skin layer fiber comprises, by weight, 40-60 parts of polyamide resin and 10-20 parts of antibacterial agent. According to a production method of the antibacterial nylon filament, the composite filament comprises the skin layer fiber and the core layer fiber, and is excellent in mechanical property and strong in antibacterial ability.

The invention relates to the field of antibacterial glass, in particular to an anti-fingerprint antibacterial glass. The anti-fingerprint antibacterial glass comprises an original glass sheet and an anti-fingerprint antibacterial layer which coats the upper surface of the original glass sheet, the anti-fingerprint antibacterial layer is formed by coating an antibacterial composition, and the antibacterial composition is prepared from, by mass, 2 to 10 percent of organic modified acrylic resin, 60 to 80 percent of methylbenzene, 10 to 30 percent of dichloromethane and 1 to 8 percent of fluorinated silver-loaded carbon nanohorn ethanol dispersion liquid. The fluorinated silver-loaded carbon nanohorn ethanol dispersion liquid is prepared on the basis of carboxylated single-walled carbon nanohorns and has antibacterial, antifouling and anti-fingerprint effects, and the antibacterial effect reaches 99% or above. According to the antibacterial glass, self-assembly of the antibacterial nano particles and the synergistic effect of the components are induced through solvent volatilization, so that the antibacterial glass has an excellent anti-fingerprint effect and outstanding antibacterial performance, and breeding of bacteria on the surface can be effectively inhibited.

The invention provides an insect repellent, a preparation method thereof and the application of the insect repellent in the insect prevention of existing building wood components. The insect repellentis prepared from the following components: a triazole compound, fenvalerate, an organic solvent and a surfactant. The mass ratio of the triazole compound, the fenvalerate, the organic solvent to thesurfactant is (7 to 10) to (14 to 18) to (25 to 40) to (12 to 20), and the triazole compound is prepared by mixing difenoconazole, flusilazole and hexaconazole in a mass ratio of (0.9-1.1) : 1 : 1. The insect repellent provided by the invention not only has excellent insect-resist performance but also has an anti-corrosion function, and the fenvalerate and the triazole compound in the insect repellent have relatively good compatibility. In addition, when the insect repellent is used, the effective insect prevention and corrosion prevention of the wood components can be achieved under the condition that a drug loading capacity is small.

The invention relates to the technical field of beverage production. In order to solve the problems of single flavor and poor stability in shelf life of traditional milk tea beverages, the invention provides a hot-filled PET bottle milk tea beverage containing Japanese Okinawa black sugar and a preparation method of the milk tea beverage. Every 1000mL of the hot-filled PET bottle milk tea beveragecomprises the following components: 30-80g of whole milk powder, 2-30g of skimmed milk powder, 5-100g of white granulated sugar, 2-15g of coconut oil, 2-20g of black tea, 0.1-5g of Japanese Okinawa black sugar, 0.1-3g of an emulsifier, 0.1-20g of a thickening agent, 0.01-0.05g of a phosphate, 0.01-1g of an antioxidant, 0.05-0.5g of nisin, 0.1-1.5g of an acidity regulator and the balance of purified water. The formula disclosed by the invention is based on milk, tea, black sugar and coconut oil; specific components and content proportions are adopted for synergistic proportioning, so that compared with common milk tea, the hot-filled PET bottle milk tea beverage is smoother in taste, is healthier and is more stable in shelf life. the preparation method is simple to operate, has no specialrequirement on equipment and is easy for industrialization.

The invention relates to an enteromorpha compound antistaling agent and a preparation method thereof, the antistaling agent comprises the following components by weight percent: 0.5-2 percent of enteromorpha extractive, 1-3 percent of chitosan mixture and acetate solution of 0.1 mol / L in balancing amount. The antistaling agent prepared by the invention has a very good restraining effect on putrefying germs, can be applied to fruits such as apples, cherries and grapes and aquatic products such as frozen fishes and shrimps, is low in preparation cost and has a wide application prospect.

The invention discloses a high-strength antibacterial sealing piece and a preparation method thereof. The preparation method comprises the following steps: sequentially adding fluororubber, phthalic acid ester, a reinforced filling agent, an antibacterial agent, carbon black and active magnesium oxide into a stirrer and mixing to obtain premixed powder M; and mixing the premixed powder M and raw rubber, adding the mixture into an internal mixer and mixing to obtain antibacterial masterbatch rubber. The problem that the common sealing piece cannot meet high antibacterial property and mechanicalstrength simultaneously is solved.

The invention discloses a filter membrane for an automobile air conditioner and a preparation method of the filter membrane, wherein the preparation method comprises the steps of mixing polyethylene glycol terephthalate, trifluoroacetic acid, dichloromethane and sodium hydroxide to form mixed liquor M; mixing nano-silver oxide and glycerol, dispersing to obtain mixed liquor N; mixing the mixed liquor M with the mixed liquor N, and and preparing the filter membrane through a spinning device. The problems that the existing filter membrane is easily broken after being used for a long time, and the bacteriostatic ability is worse are solved.

The invention discloses an antimicrobial composition and a preparation containing the same. The antibacterial composition comprises rifaximin and cephalosporin antibiotics at a mass ratio of 1 to 0.5-5. The compound antibacterial preparation comprises the following components by mass percentage: 2-10% of the antibacterial composition, 2-6% of a suspending agent, 2-10% of anhydrous lanolin, 5-20% of a surfactant and 54-89% of vegetable oil. The recombination of two antibacterial drugs achieves a synergistic effect, so that the compound antibacterial preparation not only has a broad-spectrum effect, but also has a good antibacterial effect on pathogenic bacteria that are difficult to prevent and capable of invading deep tissues of breasts, and is efficient, comprehensive and safe. A principle of selection of the excipients used in the antibacterial preparation is that the dispersion in milk is good, so that the time during which a drug takes effect is shortened and the drug utilization rate is improved.

The invention provides a bacillus subtilis microbial agent, and belongs to the technical field of microorganisms. Specifically, bacillus subtilis is JQ-0101D and is preserved in the China General Microbiological Culture Collection Center, the address of the preservation unit is No. 1 Courtyard, West Beichen road, Chaoyang District, Beijing, the preservation time is March 19, 2021, and the preservation registration number is CGMCC No. 22039. The bacillus subtilis is cultured and fermented to form the microbial agent, and the microbial agent can effectively inhibit pythium, phytophthora and fusarium, has a good biocontrol effect on root rot of araliaceae ginseng plants, and has a certain promoting effect on growth and reproduction of acidobacteria.

The invention relates to transmutation glaze with metallic luster and transmutation glaze porcelain, and belongs to the technical field of ceramics. The transmutation glaze comprises the following components in parts by weight: 82-90 parts of high-transparency basic glaze and 8.5-12 parts of color forming glaze. According to the color forming glaze, kenamite and spodumene are used as main color generating raw materials, and a ground color layer which is natural in texture and has a rusted metal color is formed after firing. Yttrium oxide and antimony oxide form a solid solution in a crystal phase during high-temperature firing, and grain growth is hindered. Further, refined crystal grains are formed, so that higher reflectivity is achieved. The product has strong metal texture, and the high-transparency basic glaze adopts albite, quartz, zirconite, potassium feldspar and glass beads as raw materials, and has the characteristics of high transparency and high brightness after being fired at high temperature; in addition, in combination with the metal texture provided by the color developing agent, the ceramic is endowed with metallic luster.

The invention discloses a high-tenacity antibacterial plastic and a preparation process thereof. The high-tenacity antibacterial plastic includes polyphenylene ether, polystyrene, antibacterial powderand a styrene-based copolymer. The high-tenacity antibacterial plastic has good safety, good antibacterial ability and excellent mechanical performance and processing performance, and can be widely used in the fields of home appliances, automobiles, and electronics.

The invention discloses an ammonia-free elastic antibacterial polylactic acid fabric and a preparation method thereof. The ammonia-free elastic antibacterial polylactic acid fabric comprises a fabric body, wefts and warps; a fabric outer layer is connected with the outer side face of a fabric antibacterial layer in a heat bonding mode, and the outer side face and the inner side face of a fabric middle layer are coated with a first coating layer and a second coating layer respectively; and the fabric antibacterial layer is connected with the outer side face of the fabric middle layer in a heat bonding mode, and the fabric middle layer is connected with the outer side face of the fabric inner layer in a heat bonding mode. The first coating layer, the second coating layer and the fabric antibacterial layer are arranged in the fabric body; the first coating layer and the second coating layer are both made of nano-silver coating materials; the nano-silver coating materials have anti-radiation, antibacterial and dirt-inhibiting functions and are soft, breathable and washable; and the fabric antibacterial layer is made of bamboo fiber fabric, the bamboo fiber fabric has the characteristics of good air permeability, instant water absorption, strong wear resistance, good dyeing property and the like, and has the functions of natural antibiosis, bacteriostasis, acarus killing, deodorization and ultraviolet resistance.

The invention discloses preparation and application of a daphne genkwa extract, and belongs to the technical field of traditional Chinese medicine extraction and separation. Main antibacterial components in the daphne genkwa extract disclosed by the invention comprise scutellarin, tiliroside, apigenin, hydroxygenkwanin and genkwanin. Research on the antibacterial effect of the daphne genkwa extract shows that the daphne genkwa extract has excellent antibacterial ability on two common gram-positive bacteria (listeria monocytogenes and staphylococcus aureus), the daphne genkwa extract can significantly reduce the listeria monocytogenes and staphylococcus aureus growing on the surfaces of celery leaves, and it is proved that the daphne genkwa extract can be used for fresh-keeping storage of leaf vegetables, bacterial loads in the leaf vegetables are reduced, and food poisoning or food-borne diseases caused by the bacteria are prevented.

The invention discloses an antibacterial reflective fabric for canvas shoes. The antibacterial reflective fabric comprises a base layer, an antibacterial layer and a waterproof layer, wherein the base layer is connected with the antibacterial layer; the antibacterial layer covers the lower part of the base layer and is formed by weaving warp yarns and weft yarns; the warp yarns and weft yarns are bamboo charcoal fibers; a warp plied yarn is arranged in the warp yarns in every warp spacing; a weft plied yarn is arranged in the weft yarns in every weft spacing; the waterproof layer is connected with the base layer and covers the base layer; a reflective stripe is arranged on the surface of the waterproof layer; and micro pores are formed in the surface of the fabric. According to the mode, the antibacterial reflective fabric for canvas shoes disclosed by the invention is made of special bamboo charcoal fibers, so that the antibacterial reflective fabric has good antibacterial capability. Moreover, the reflective stripe is arranged on the surface, so that the antibacterial reflective fabric has a reflecting function.