139results about How to "Wide range of antibacterial" patented technology

A kind of argental non-corrosive steel which can improve antisepsis with rare-earth is disclosed. It contains 0.05-1.0% rare-earth element, 0.005-0.5% silver, 13-30% Cr, 0-18% Ni, C<=1.2%, Mn<=10%, one or more alloy element of Cu,Mo, Co,Ti,Nb,V,Al,Zr,B, in which Cu<=3.8%, Mo<=3.0%, Al<=1.2%, rest element<=1%, and the allowances are base Fe. The added rare-earth element and silver distributes uniformly in the base, which offers the non-corrosive steel with antisepsis property. Silver is added into the base by middle alloy of Ag-Cu or Ag-Ni. And rare-earth element is added into the base by rare-earth ferro-silicon or by affiliating rare-earth alloy properly in melting anaphase of non-corrosive steel. The non-corrosive steel has many characteristics including persistent antisepsis, extensive range of antisepsis and bacteria without bringing fastness. It also has comparative mechanical property and corrosive nature as common non-corrosive steel.

Disclosed is a preparation method of antibacterial modification type soft polyurethane foam. The antibacterial modification type soft polyurethane foam is prepared from, by weight, 25-40% of polyisocyanate, 50-70% of polyether polyol, 0.01-5% of antibacterial agent and 2-10% of other auxiliaries including a catalyst, a foaming agent, a surfactant or a cross-linking agent according to a prepolymer method, a semi-prepolymer method or a one-step method. The preparation method of the antibacterial modification type soft polyurethane foam has the advantages that antibacterial modification and polyurethane synthesis are completed by one step, antibacterial modification is conducted in a chemical bonding mode, and accordingly the prepared antibacterial modification type soft polyurethane foam is long-acting in antibacterial property, quick to sterilize, wide in antibacterial range and high in storage stability.

The invention discloses broad-spectrum antimicrobial fragrant polypropylene resin for a washing machine. The resin is prepared from the following raw materials in percentage by weight: 60-84 percent of polypropylene, 0.2-1 percent of small molecule organic antibacterial agent, 0.2-1 percent of inorganic antimicrobial agent, 0.1-1 percent of freshener, 10-30 percent of glass fiber, 5-10 percent of compatilizer, 0.1-2 percent of dispersing agent and 0.1-1 percent of antioxygen. The invention further provides a preparation method of the broad-spectrum antimicrobial fragrant polypropylene resin for the washing machine. The broad-spectrum antimicrobial fragrant polypropylene resin for the washing machine has a broad-spectrum, efficient and lasting antibacterial function, and is higher in safety; washing machine water stirring blades or an washing machine inner barrel made of the resin provide clothing with specific fragrance; as the adding of the glass fibers, the resin has a stronger comprehensive mechanical property, and has low probability of deformation in the using process; the preparation process of the resin is simple, convenient, clean and efficient.

The invention discloses a chitosan single guanidine hydrochloride loaded nanometer titanium dioxide compound and a preparation method thereof. The preparation method comprises the following steps: using a natural antibacterial agent namely chitosan as a skeleton, and chemically modifying the chitosan; using aminoiminomethanesulfonic acid to inoculate a single guanidine groups on the chitosan through reaction to obtain chitosan single guanidine hydrochloride; using glutaraldehyde as a cross-linking agent, and coating the nanometer titanium dioxide particles with glutaraldehyde to obtain a chitosan single guanidine hydrochloride loaded nanometer titanium dioxide microspheric antibacterial agent. The prepared compound comprises natural, organic and inorganic antibacterial agents, has a broad-spectrum and efficient antibacterial performance, can ensure that finished textiles can still keep a better antibacterial effect in more and wider environments, and is suitable for antibiotic finish of various textiles.

The invention discloses a rich earth antibiotic stainless steel, which contains 0.05-4.5% rare earth element, wherein the rare element is dispersed in the base evenly, which makes stainless steel possess antibiotic property.

The invention discloses antibacterial moisture-transfer chinlon 6 comprising antibacterial master batches, polyamide 6 chips and calcium stearate, wherein the weight ratio of the antibacterial master batches to the polyamide 6 chips to the calcium stearate is (7-10) to (95-100) to (0.1-0.3). The antibacterial moisture-transfer chinlon 6 provided by the invention adopts nano porous bergmeal to carry cuprous oxide and has the characteristic of high copper ion carrying capacity, thereby not only saving the production cost and reducing the content of inorganic particles in melt, but also improving the stability of the spinning process; the antibacterial moisture-transfer chinlon 6 is scientific and reasonable in component proportion and can resist various bacteria, thereby having the advantages that the antibacterial range is high and the antibacterial ratio is above 99 the antibacterial moisture-transfer chinlon 6 has excellent moisture absorption and sweat discharging functions and a wide application range; and the operability of a preparation method is strong, the process is reasonable, the production efficiency is high, and industrialized production can be realized.

This invention relates to an antiseptic producing bacteria, its metabolite application and preparing natural microbios antiseptic process using the metabolite as material. Naming the invention as Lactobacillus paracaseiHD1.7, preservation number being CCTCC: M205015. Its metabolite is a kind of peptide antiseptic, being capable of inhibiting colibacillus, Staphylococcus aureus, micrococcus flavus, bacillus subtilis, also salmonella, bacillus megaterium, Bacillus cereus, Shigella, proteus and such like these pathogenic bacteria; in condition of 120Deg.C, 60min still sustaining its bacterial inhibition active, with strong heat stability; being irresponsive to several proteinases, working well in neutral or acidic conditions.

The invention discloses a gentamicin sulfate/gelatin microsphere complex-loaded silk fibroin scaffold and a preparation method, belonging to the technical field of high molecular materials. The preparation method comprises the following steps: dropwise adding gentamicin sulfate solution with concentration of 10-50 mg/ml into gelatin microspheres, placing overnight at the temperature of 4-25 DEG C and then performing freeze drying to obtain a gentamicin sulfate/gelatin microsphere complex; adding the gentamicin sulfate/gelatin microsphere complex into 2-10 percent by weight of silk fibroin solution, uniformly stirring and then performing freeze drying to obtain the gentamicin sulfate/gelatin microsphere complex-loaded silk fibroin porous composite scaffold, wherein the porosity of the gentamicin sulfate/gelatin microsphere complex-loaded silk fibroin scaffold is 75-95 percent, the aperture of the gentamicin sulfate/gelatin microsphere complex-loaded silk fibroin scaffold is 50-200 mum, and the gentamicin sulfate/gelatin microsphere complex-loaded silk fibroin scaffold has long-acting antibacterial and drug slow-release functions and can be applied to the fields of skin wound healing and wound dressing.

The invention relates to the field of daily chemical products, in particular to a plant source antibacterial agent and a preparation method thereof. The plant source antibacterial agent comprises thefollowing components in parts by weight: 20-33 parts of a pulsatilla cernua extract, 14-36 parts of a Chinese prickly ash extract and 20-38 parts of a tillandsia usneoides extract. The plant source antibacterial agent provided by the invention has a very high property of inhibiting growth of bacillus subtilis, escherichia coli, staphylococcus aureus, candida albicans, pseudomonas aeruginosa, aspergillus niger and the like, and a preservative property as well, besides, the stability of the agent can be also very well improved at a high temperature. In addition, cosmetics can be kept gentle whenantibacterial effects and high-temperature stability are maintained, and the agent has the characteristics of being non-toxic and non-irritant to human bodies.

The invention relates to the technical field of poultry breeding, in particular to a method for breeding a native goose. The method comprises the first step of selecting a site of a colony house; the second step of planting plants; the third step of cleaning the colony house; the fourth step of selecting seeds; the fifth step of feeding, wherein feeding is conducted through a method of combining free water drinking, free choice feeding and fodder feeding, 3-5% of Chinese herbal medicine additive is added into the fodder or the drinking water, and the Chinese herbal medicine additive is mainly prepared from fermentation of, by weight, 15-20 parts of parasitic loranthus, 15-17 parts of pyrola, 14-16 parts of cyrtomium fortunei, 13-15 parts of scabrous elephantfoot herb, 13-15 parts of eucalyptus robusta, 13-15 parts of radix stemonae, 1-2 parts of microorganism and the like; the sixth step of managing the colony house. According to the method for breeding the native goose, the Chinese herbal medicine additive which has the functions of clearing away heat and toxic materials, resisting bacteria and removing or killing parasite is added into the fodder or the drinking water, the physique and immunity of the native goose are obviously strengthened, the native goose can have healthy growth under a natural environment, the prevalence rate is reduced, and the breeding benefits of the native goose is promoted.

The invention relates to the technical field of poultry breeding, specifically to a high-yield breeding method for a goose. The high-yield breeding method comprises the following steps: site selection of a goose house, cleaning of the goose house, selection of a breeding goose, breeding, management of the goose house, etc. According to the invention, a method of combining free drinking of water, free intaking of a feed and feeding with a fermented feed is adopted for feeding, wherein a traditional Chinese medicinal additive is added into the fermented feed or drinking water; the fermented feed is prepared by fermentation of the following main raw materials in parts by weight: capsella bursa-pastoris, Russian forage, alopecurus aequalis sobol, rumex acetosa, rhus chinensis mill leaves, ramie leaves, etc.; and the traditional Chinese medicinal additive is prepared from the following main raw materials: Chinese taxillus herb, Chinese pyrola herb, cyrtomium rhizome, scabrous elephantfoot herb, encalyptus robusta smith, stemona root, etc. The breeding method provided by the invention is scientific and reasonable, does not use chemical agents like antibiotics, effectively improves digestion, absorption and utilization rates of the feed, increases the weight of the goose, significantly enhances the physique and the immunity of the goose, promotes healthy growth of the goose, and enables goose meat to be delicious, tender and rich in nutrition.

The present invention discloses a biological food preservative, which comprises the following raw materials by mass: 3-8 parts of lysozyme, 1.5-5 parts of chitosan, 5-15 parts of glycine, 1-6 parts of protamine, 3.5-8 parts of agar oligomer, 0.5-3 parts of pectin hydrolyzate, 3-8 parts of a spice extract, 12-20 parts of nisin, and 25-40 part sof water. The biological food preservative of the present invention has advantages of safety, health, no toxic-side effect, no odor and wide antibacterial range, and can strongly kill and inhibit yeast, mold and bacteria.

The invention relates to dialdehyde cellulose grafted epsilon-polylysine antibacterial material, prepared by oxidizing cellulose into dialdehyde cellulose, and using the dialdehyde cellulose as a supporter to modify with epsilon-polylysine under a certain aldehyde group molar ratio through grafting reaction so that epsilon-polylysine is grafted to dialdehyde microcrystalline cellulose. The processto prepare the dialdehyde cellulose grafted epsilon-polylysine antibacterial material is simple; the dialdehyde cellulose grafted epsilon-polylysine antibacterial material has no toxic and side effects and has good antibacterial activity; with penicillin acting as a positive control and LB (lysogeny broth) liquid medium as a negative control, the material herein has minimum inhibitory concentrations of 7.5 mg/mL, 15 mg/mL and 30 mg/mL respectively for E. coli and S. aureus, S. typhimurium, and S. lutea and B. subtilis. A new idea is provided for the research and development of novel antibacterial materials.

The invention discloses a sanguinarine/gelatin microspheres-loaded composite hydrogel support and a preparation method and an application thereof. The method comprises the following steps: adding a sanguinarine solution dropwisely into gelatin microspheres, placing the materials over night, performing freeze drying to obtain a sanguinarine/gelatin microspheres compound; then adding the compound in an aldehyde glucan-aminated sodium hyaluronate pre-gel solution, uniformly stirring the materials, standing gel at normal temperature, and performing freeze drying to obtain the product. The water absorption of the composite hydrogel support is 23-25 times, the porosity is 68-88%, the aperture is 50-200 [mu]m, the composite hydrogel support has functions of wide-spectrum anti-microbial, long-acting anti-microbial and slow release of medicine, and can be used in the fields of skin wound healing and wound dressing.

Provided is a preparation method for an antifungal and deodorized insole. The preparation method comprises the steps that firstly, essential oils of lemon fragrance, mint fragrance and orange fragrance are selected to serve as core materials, beta-cyclodextrin is selected as wall materials, fragrant microcapsules are prepared by using a wrapping method, and a preparation technology of the microcapsules is optimized; secondly, antibiotic finish is performed on a cotton fabric insole by utilizing organosilicon quaternary ammonium salt through a finishing technology with twice immersing and twice rolling at the temperature ranging from 110 DEG C to 120 DEG C; thirdly, the finished antibacterial cotton fabric insole is immersed in fragrant emulsion for two to three minutes, and through the mode of twice immersing and twice rolling, predrying is firstly performed on the cotton fabric, and then high-temperature drying is performed on the cotton fabric; finally, the antifungal and deodorized cotton fabric insole is obtained. The prepared cotton fabric insole can resist fungi and bacteria, and meanwhile has the different fragrant functions and the advantages of being good in antibacterial and deodorized effect.

The invention discloses an antibacterial plastic for a keyboard, and belongs to the technical field of plastic products. The antibacterial plastic is prepared from, by weight, 100-120 parts of ABS (acrylonitrile butadiene styrene) matrix resins, 15-25 parts of polycarbonate, 2-10 parts of ethylene-acrylic acid copolymers, 1-5 parts of polyvinyl alcohol, 2-10 parts of ethylene-propylene-diene-terpolymer rubber, 4-8 parts of antibacterial master batches, 10-15 parts of fillers, 5-12 parts of dispersing agents, 0.2-0.6 part of antioxidant, 0.3-0.7 part of coupling agents, 0.2-0.6 part of stabilizers and 40-65 parts of compatilizers. The shell materials of the keyboard are provided with the antibacterial master batches, the broad-spectrum antibacterial property, the antibacterial slow-release property and weather resistance of the plastic are improved, and the mechanical property of the antibacterial plastic is improved.

The invention discloses a preparation method of a metal-based nano antibacterial coating aluminum plate. The preparation method comprises the following steps: (1), pre-treating an aluminum plate; (2), preparing a metal-based nano antibacterial coating material; (3), plasma-spraying; (4), roasting; and (5), coating a varnish layer on the surface of the antibacterial coating. The preparation method disclosed by the invention is simple in preparation process, can be used for preparation by conventional equipment without special equipment, and is low in production cost. The metal-based nano antibacterial coating material used in the preparation method disclosed by the invention uses an inorganic antibacterial agent containing Ag-Zn and rear earth elements as main ingredients of the antibacterial coating, and the prepared antibacterial coating is tight in adhesion, attractive in appearance and long-term in weather resistance, and suitable for decorating interior and exterior wall surfaces of sterile rooms of medical treatment and health departments as well as production workshops of a pharmaceutical factory, a food factory and a cosmetic factory, laboratories of electronic industry, and the like.

The invention discloses a naphthoic acid and 1, 10-o-phenanthroline rare-earth complex and its function for inhibiting bacterial, which is represented as REL3phen nH2O, wherein RE is rare-earth element as Eu3+, Tb3+, Gd3+, La3+ or Y3+, L is one of alpha-Naphthoic acid, beta-Naphthoic acid, alpha-Naphthlcetic acid and beta-Naphthlcetic acid, n=0 or 1. The preparation method comprises using L as first ligand and o-phenanthroline as second ligand while RE3+: L: phen is 1:3:1, adding alcohol and dissolving, mixing the two ligands to be added into a rare-earth chloride solution, mixing and reacting to synthesize rare-earth complex. The qualitative and quantitative bacteriostatic tests of filter paper method on the rare-earth complex prove that the rare-earth complex has bacteriostatic function on variable experimental bacteria, stronger than independent ligand and ion and stronger bacteriostatic effect along with density increase. The invention provides useful try for biological bacteria inhibitor development.

The invention discloses a disinfectant with lavender fragrance, wherein 100 parts by weight of disinfectant comprises the following mixed components in parts by weight: 60-70 parts of extractive of compound traditional Chinese medicinal materials, 0.3-0.35 part of trichloro hydroxydiphenyl ether, 2-4 parts of hydroxypropyl methyl cellulose, 1-3 parts of lavender essential oil, 60-70 parts of ethyl alcohol and the balance being water. The compound traditional Chinese medicinal materials comprise the following raw materials in ratio by weight: 10-15% of lemon grass, 5-10% of oldenlandia diffusa, 10-15% of cyrtomium fortunei, 5-10% of ligustrum sinense leaves, 10-15% of eucalyptus leaves, 15-20% of herba fibraureae recisae, 10-15% of radix sophorae flavescentis, 5-10% of fructus kochiae, 4-8% of eriocarpous glochidion leaves, 10-12% of Chinaberry bark, 8-12% of myrrh, 5-10% of hypericum japonicum, 10-15% of lily and tulip, 5-10% of rhizoma polygonati, 10-15% of angelica sinensis, 8-12% of gallnut and 5-10% of pomegranate bark. The disinfectant with lavender fragrance, disclosed by the invention, is reasonable in formulation, stable in performance, convenient to use and good in sterilization effect.

The invention discloses inorganic nano antibacterial thermoplastic elastomer and a preparation method thereof. The antibacterial thermoplastic elastomer is prepared from the following ingredients in mass percent: 15 to 30% of SEBS, 10 to 30% of rubber filling oil, 10 to 25% of polypropylene, 1 to 2% of inorganic nano antibacterial powder, 0.1 to 0.5% of coupling agent, 0.1 to 0.5% of surface active agent and 0 to 2% of other additives. The inorganic nano antibacterial thermoplastic elastomer disclosed by the invention is a material having the advantages of excellent antibacterial effect, highstrength, high rebound resilience, injection molding characteristic, strong antibacterial capacity, wide antibacterial range, safety and no toxicity to the human body, no stimulation to the skin, no allergenicity, durability, effectiveness, no attenuation or failure in a short time, environmental friendliness, no toxicity, safety and wide application range.

The invention discloses an ocean-originated bacillus amyloliquefaciens GY30 strain. The preservation number of the ocean-originated bacillus amyloliquefaciens GY30 strain is CGMCC NO. 14480. The invention also discloses a spore production fermentation medium composition and a culture method of the bacillus amyloliquefaciens GY30 strain and a method for preparing bacterium power through the bacillus amyloliquefaciens GY30 strain. The bacillus amyloliquefaciens GY30 strain has the advantages of being high in salt tolerance, low in growth temperature, good in antibacterial effects, wide in antibacterial range and easy to culture, which do not exist in terrigenous microorganisms. The spore production fermentation medium composition and the culture method of the bacillus amyloliquefaciens GY30strain are simple, applied raw materials are mainly agricultural product leftovers, thereby being low in price, extensive in resources, high in strain growth speed, low in fermentation temperature, short in fermentation time, easy to control in fermentation conditions, high in spore fermentation yield and capable of reducing raw material costs and fermentation energy consumption and improving thefermentation production efficiency; bacterium powder prepared through the spore production fermentation medium composition and a culture method of the bacillus amyloliquefaciens GY30 strain is high ineffects on processing microorganism fertilizers or rice sheath blight disease preventing pesticides.