73results about How to "Long-term antibacterial" patented technology

The invention discloses a preparation method of a chelate coating with copper ions capable of controllably catalyzing release nitrogen monoxide and a polyphenol complex. The preparation method comprises the following steps: soaking a target modified material or an instrument in a mixed aqueous solution consisting of soluble metal salt, soluble copper salt and a compound having an o-phenol structure; and depositing a layer of chelate coating with copper ions with a function of catalyzing nitrogen monoxide and the polyphenol complex on the surface. The chelate coating with the copper ions and the polyphenol complex, which is obtained by the preparation method disclosed by the invention, not only has excellent biocompatibility and bacterial resistance, but also has a function of inducing catalysis of endogenous nitrogen monoxide to release in a blood environment. In addition, the coating is nearly applicable to surface modification of materials of all textures, complex geometrical shapes and different topological structures.

The invention provides a silver-loaded low-molecular-weight chitosan composite microsphere antibacterial agent and a preparation method thereof. Low-molecular-weight chitosan is used as a raw material, and a low-molecular-weight chitosan acetic acid solution, a silver nitrate solution and a vanillic aldehyde ethanol solution are mixed to form composite sol; then paraffin is used as a continuous phase, sorbitan monooleate and alkylphenol ethoxylates are used as a compound emulsifier, a silver/low-molecular-weight chitosan sol is used as a monomer, and sodium tripolyphosphate is used as a cross-linking agent for preparing an emulsion system for emulsification crosslinking, and finally washing and drying are performed, so that the silver-loaded low-molecular-weight chitosan composite microsphere antibacterial agent is obtained. Due to the fact that the low-molecular-weight chitosan is used as the raw material, nanometer silver particles can enter microspheres, and the antibacterial activity of the composite antibacterial agent is obviously improved. The obtained antibacterial agent has the broad-spectrum bactericidal activity, and has the efficient fatality rate for both escherichia coli and staphylococcus aureus.

The invention relates to a disinfectant and particularly relates to a cow nipple disinfectant. The cow nipple disinfectant with a film forming and nursing effect comprises the following components according to weight percent: 0.1 to 0.3 of iodine, 0.1 to 0.3 of potassium iodide, 0.05 to 0.2 of hibitane, 1 to 8 of film forming agents, 2 to 8 of nonionic surface-active agents, 0.5 to 3 of emollient and 1 to 10 of humectant, and the rest is water; and all the components are mixed to form the disinfectant. The cow nipple disinfectant has a stable property, is safe and non-irritant, has the characteristics of high sterilization rate and permanent bacteriostatic action, and can form a film on the surface of a cow nipple quickly to achieve the effects of moistening and protecting.

The invention provides a polypeptide bioactive coating, which mainly comprises a plurality of polypeptide film layers and an active material layer, wherein two adjacent polypeptide film layers have different charges; two adjacent polypeptide films are combined through charge acting force; each polypeptide film is 3-10nm in thickness; a nano coating material of the polypeptide bioactive coating is polypeptide with good biocompatibility, not only meets the characteristics of being nontoxic, free of thrill, and free of carcinogenesis, teratogenesis and mutagenesis, but also has good bacteriostatic and antibacterial effects, has biological activity and is capable of promoting cell adhesion, growth and proliferation. The invention further provides a biomaterial, which comprises a base material and the bioactive coating loaded on the surface of the base material. The invention further provides a method for preparing the biomaterial. The invention further provides an application of the biomaterial in a surgical operation; and preferably, the surgical operation is an orthopedic operation.

The invention relates to a skin antibacterial foam without washing the hands and a preparation method thereof. The skin antibacterial foam without washing hands is prepared from, by weight, 0.01-2.0%of benzalkonium chloride, 0.01-1.0 % of polyhexamethylene guanidine, 0.05-1.0% of triethyl citrate, 0.05-2.0% of cocamidopropyl betaine, 0.01-2.0% of alkyl polyglycoside, 0.5-10.0% of humectant, and the balance water. The skin antibacterial foam without washing the hands is obvious in sterilization effect, can reduce the adhesive force of bacteria on the skin surface, and efficiently carries out sterilization and long-acting bacteriostasis; the skin antibacterial foam without washing the hands is nonirritating, good in moisture retention effect, not sticky, high in sense organ comfort, small in component variety, convenient to prepare, relatively low in cost, high in safety, free of toxic and side effect and convenient to use without washing, and can meet people's increasing demands on sanitary safety day by day.

The invention provides environment-friendly sportswear fabric with high moisture absorption and sweat-releasing performance and a preparation method thereof. According to the fabric, modified special-shaped polyester fiber, tencel fiber and Coolplus fiber are blended, wherein the three kinds of fiber have good moisture absorption and permeability; therefore the fabric after blending has good moisture absorption, permeability and crease resistance; the tencel fiber whose preparation process is environmentally friendly and which is degradable is adopted and therefore the fabric is environmentally friendly; antibacterial agent is adopted; the preparation method of the fabric is novel and environmentally friendly; a special modified polyester fiber processing method is adopted; the antisepticis attached to the surface of fiber and the application amount is substantially reduced. the antiseptic is firmly attached to the fabric during the preparation process of the fabric; the antiseptic effect is lasting; long-term antibiosis and stinking-proof are achieved.

The invention discloses an anti-bacteria hand-washing solution. The hand-washing solution is prepared from 12-30% of anionic surfactant, 3-6% of dodecyl dimethyl amine oxide, 5-10% of non-ionic surfactant, 1-3% of camellia oil, 3-5% of propylene glycol, 0.1-0.5% of Caisson, 0.3-0.5% of essence, 1-3% of sodium chloride, and the balance of deionized water. The anti-bacteria hand-washing solution is reasonable in formula and simple in process, and has good effects of sterilization, skin protection and decontamination. Due to the adoption of the hand-washing solution for washing, the skin feels smooth, comfortable and fragrant and is free of dry sense.

The invention discloses a non-migration and degradable antimicrobial polyester film and a preparation method thereof, and belongs to the field of antibiosis. The method comprises the following steps: mixing and uniformly stirring starch, a high-molecular polymer sterilization disinfectant aqueous solution and glycerine to obtain a mixture; performing kneading, melting, extruding and granulating on the mixture to obtain antimicrobial thermoplastic starch particles; then, mixing and uniformly stirring PBAT (poly(butyleneadipate-co-terephthalate)),the antimicrobial thermoplastic starch particles and a coupling agent, and then performing kneading, melting, extruding and granulating to prepare antimicrobial polyester particles; finally, preparing the degradable and non-migration antimicrobial polyester film by the antimicrobial polyester particles by adopting a film blowing process. The non-migration and degradable antimicrobial polyester film prepared by the method disclosed by the invention has a better antimicrobial effect and a good degradation effect; in addition, antimicrobial components in the antimicrobial film have excellent migration resistance.

The invention discloses a migration-free antibiotic polyolefin film and a preparation method thereof, and belongs to the antibiotic field. The method comprises the steps of: mixing starch, high-molecular polymer sterilization disinfectant aqueous solution and glycerinum, stirring uniformly, and thereby obtaining a mixture, and then blending, fusing, extruding and pelleting the mixture, thus obtaining antibiotic thermoplastic starch particles; mixing polyolefin, thermoplastic starch particles and bulking agent, stirring uniformly, and then blending, fusing, extruding and pelleting, thus making into antibiotic polyolefin particles; making the obtained antibiotic polyolefin particles into migration-free antibiotic polyolefin film by using the film blowing technology. The migration-free antibiotic polyolefin film produced by the method provided by the invention has good antibiotic effect, in addition, the antibiotic constituents in the antibiotic film has good migration resistant performance.

The invention discloses a mouldproof and environmentally-friendly glass adhesive and a preparation method thereof, and the formula is selected as follows: the mouldproof and environmentally-friendly glass adhesive comprises, by weight, 70-72 parts of polyacrylate emulsion, 10 parts of a marine biological sterilization agent, 0.2-5 parts of a coupling agent, 17 parts of silica sol and 0.1-1 part of ammonia water. According to the invention, the sterilization agent is creatively infused in the glass adhesive, so that the glass adhesive has long-acting antibacterial properties, and puts an end to blacking or discoloration phenomena caused by moulding, VOC (volatile organic compound) emission is zero, and the glass adhesive is in accordance with the green and environmentally-friendly requirements, has extremely-high adhesion and waterproof function, and can replace a traditional glass adhesive.

The invention relates to the field of building coatings, in particular to an antibacterial, mildew-proof and flame-retardant silicate interior wall coating and a preparation method thereof. The antibacterial, mildew-proof and flame-retardant silicate interior wall coating is prepared from, by mass, 30-60 parts of slurry, 45-55 parts of filler, 20-65 parts of diluent A, 10-25 parts of diluent B and 1-3 parts of auxiliaries; the slurry is prepared from the following components in parts by mass: 2 to 6 parts of hydroxyethyl cellulose, 0.3 to 1 part of a wetting agent, 0.1 to 1 part of a dispersing agent, 0.1 to 0.8 part of a de-foaming agent and 0.1 to 0.5 part of other auxiliary agents; the filler comprises the following components in parts by mass: 10-30 parts of carrier nano silver, 5-15 parts of titanium dioxide, 5-10 parts of kaolin, 10-15 parts of talcum powder and 10-30 parts of heavy calcium carbonate; the auxiliaries comprise the following components in parts by mass: 2-10 parts of propylene glycol, 0.1-3 parts of a defoaming agent, 0.1-1 part of a rheological modification auxiliary and 0.1-0.6 part of a polyurethane thickening agent. The antibacterial, mildew-proof and flame-retardant silicate interior wall coating disclosed by the invention is excellent in antibacterial, mildew-proof and flame-retardant properties, green, environment-friendly and long in service life.

The invention provides a plastic material, and a preparation method and an application thereof. The plastic material comprises a resin substrate, a dispersing agent, an antioxidant, an antibacterial agent and a fluorine-containing surface modifier. The fluorine-containing surface modifier and the antibacterial agent are simultaneously added into the plastic material provided by the invention, wherein the fluorine-containing surface modifier can effectively reduce the surface energy of the plastic material, so that dust, microorganisms and other dirty matters are difficult to attach to the surface of the plastic material, and meanwhile, the antibacterial agent can immediately restrain or kill the attached microorganisms and the antibacterial agent and the fluorine-containing surface modifier can synergistically achieve the anti-microbial, stain-resisting and easy cleaning effects.

The invention relates to the field of fine chemistry and in particular relates to a marine organism bacteria removing component-containing mould-preventing, dirt-removing and softening care agent for leather, which is used for the care of leather products. The care agent disclosed by the invention has the beneficial effects that the shortcomings of the prior art in the aspects of bacteria removing and mould preventing can be overcome; the novel marine organism bacteria removing technology is adopted to ensure that the care agent has no corrosiveness to leather, is safe and friendly to environment and has long-acting antibacterial property; and the adopted various raw materials are more friendly to environment and nonirritating and the production process is simple and has no dangerousness and toxicity. The care agent disclosed by the invention comprises the following components in percentage by weight: 6.0-8.0% of marine organism bacteria removing agent, 0.5-1.0% of alkyl glycoside, 8.0-12.0% of palm cation ester-based quaternary ammonium salt, 2.0-4.0% of glycerol and the balance of purified water.

The invention discloses an anti-bacterial EVA plastic. The anti-bacterial EVA plastic comprises the following components in parts by weight: 170-185 parts of EVA, 30-35 parts of calcium carbonate, 10-15 parts of copper-loaded zirconium phosphate, 10 parts of dicyandiamide, 10-16 parts of POE, 5-8 parts of magnesium salt whisker, 10-20 parts of jute fiber, 5-7 parts of epoxidized soybean oil, 10-15 parts of hard acid ester, 10 parts of chitosan-grafted methyl methacrylate and 10 parts of nano aluminium hydroxide. The anti-bacterial EVA plastic has a good anti-bacterial function; an obvious antibacterial function can be performed when a very small amount of anti-bacterial EVA plastic is used. The anti-bacterial EVA plastic does not decompose and react with other materials during the processing of high-temperature fusing forming and thermal forming. The anti-bacterial EVA plastic can be dispersed in a plastic product uniformly and easily, and is high in weatherability and durability, so that the plastic product has a long-term antibacterial property.

The invention provides a photo-activated antibacterial dressing and a preparation method thereof. The preparation method comprises the following steps: S1, etching MAX ceramic into MXene nanosheets; s2, an MXene/Ag3PO4 heterojunction is prepared, and the MXene/Ag3PO4 heterojunction is prepared; s3, modifying the MXene/Ag3PO4 heterojunction by using the polydopamine; and S4, dissolving the polycaprolactone particles and the polydopamine modified MXene/Ag3PO4 heterojunction, uniformly mixing, and forming a membrane, so as to obtain the nanofiber membrane. The wound dressing for treating infected wounds has the effects of quickly sterilizing in a short time, inhibiting bacteria for a long time and promoting wound healing.

The invention relates to a sterilizing type medical ultrasonic coupling agent and a preparation method thereof. The coupling agent contains the following active ingredients: polyhexamthylene guanidine-derivatives and chloramphenicol. A test proves that the coupling agent provided by the invention has the effects of transmitting sound, lubricating and preventing cross-infection, and the preparation method is simple and environment-friendly.

The invention discloses an anti-infection tissue engineering skin scaffold which is of an upper and lower double-layer structure, said layers are combined together through glutaraldehyde cross-linkingaction, and the scaffold has good mechanical strength. Nano-silver inside fibers in the upper epidermal scaffold polycaprolactone-polyethylene glycol-polycaprolactone/nano-silver/chitosan nano-yarn layer and chitosan on the surfaces of the fibers synergistically exert an antibacterial effect, and zinc acetate is uniformly distributed in fibroin/hyaluronic acid fibers of the lower dermal scaffold,so that bacterial aggregation can be inhibited, and an anti-infection effect is exerted; the lower layer is a nanofiber bundle woven scaffold, and the structure, the pore size and the porosity of thefiber bundle scaffold can be freely adjusted through weaving; the scaffold with orderly and regular arrangement of fiber bundles and the pore size average value close to the cell size can be prepared, cells can enter the scaffold, and directional growth of tissue is guided.

The invention discloses antibacterial ink and a preparation method thereof, the antibacterial ink comprises the following raw materials in parts by weight: 1-5 parts of ink carbon black, 1-2 parts ofa wetting agent, 3-7 parts of a dispersing agent, 4-10 parts of bone glue powder, 320-540 parts of water and 0.3-0.5 part of a nano inorganic antibacterial agent, and the invention relates to the technical field of pigments. The invention discloses antibacterial ink and a preparation method thereof. The nano inorganic antibacterial agent is added; the antibacterial agent has the advantages that the safety is high; the ink has the advantages of good chemical stability, long-acting antibiosis, bacteriostasis, realization of efficient broad-spectrum killing and removal of Staphylococcus aureus, Escherichia coli and other bacteria, guaranteeing of no deterioration of ink products after long-term storage, no mildew of paintings after long-term storage, harmlessness to human bodies, no pollutionto the environment, simplicity and feasibility of the preparation method, and convenience in promotion.

A safe and non-toxic laundry liquid for infants and young children belongs to the technical field of washing and chemical products. It comprises the following components prepared by weight: 20-30 parts of fatty alcohol polyoxyethylene ether carboxylate, 1-3 parts of castor oil, 15-20 parts of anionic surfactant, 0.01-0.05 parts of citric acid, 0.1-0.3 parts of guanidine salt fungicides, 0.5-1.5 parts of protease, 1-2 parts of amylase, 0.1-0.3 parts of enzyme stabilizer, 1-3 parts of coconut oil monoethanolamide, 4-7 parts of sodium chloride, 45-55 parts of ionized water. The invention has strong detergency, can quickly penetrate into the deep layers of fibers, remove stubborn dirt such as blood stains, milk stains, urine stains and oil stains; it has obvious inhibitory and killing effects on bacteria and fungi such as Staphylococcus aureus, Streptococcus, and Candida albicans. ; mild in nature, PH value 6‑8, neutral formula, no damage to clothing, no irritation to the skin, mild hand protection; the product is suitable for washing baby clothes, diapers, underwear and thermal underwear and other intimate clothing.