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37results about How to "Improve antibacterial ability" patented technology

Titanium and titanium alloy surface micro-nano structure modification method

Metal titanium and titanium alloy are widely applied to implants of oral prosthodontics, orthopedic surgery and plastic surgery at present, but have the problems of having poor osseous integration capability and being prone to have bacterial infection after implantation. The invention discloses a titanium and titanium alloy surface micro-nano structure modification method, and aims to improve theosseous integration capability and antibacterial capability of titanium and titanium alloy surfaces. The micro-nano structure modification method is characterized in that a femtosecond laser processing technology is adopted, the polished titanium alloy surface is ablated to form a micropost periodic structure with the spacing and the depth not greater than 200 microns, nanotubes with the diameterssmaller than 200 nm are prepared on the micropost periodic structure in an anodic oxidation mode after further acid pickling, and then annealing heat treatment is carried out to obtain a final sample. According to the method, the surface with a micro-nano structure can be prepared on the titanium and titanium alloy surfaces, and the titanium and the titanium alloy with such surfaces have good biocompatibility and antibacterial capability.
Owner:UNIV OF SCI & TECH BEIJING

Novel dog food

The invention discloses a novel dog food. The novel dog food consists of the following components in percentage by weight: 35% of fresh meat, 15% of salmon meat, 30% of puffed powder, 10% of glycerine, 5% of lecithin, 0.5% of probiotics, 3.5% of calcium hydrogen phosphate, 5-8% of peanut oil, 5-8% of corn oil, 6-8% of purple potato powder, 0.06-0.08% of vitamin D, 0.6-0.8% of shrimp shells, 0.005-0.1% of bone meal, 0.005-0.1% of fungus powder, and 0.6-0.8% of a Chinese herbal medicine additive. The invention further provides a preparation method of the novel dog food. On the basis that rich and balanced nutrient components are maintained, the side effects caused by too high animal protein are avoided, and besides, the novel dog food has various physiological functions of adjusting the intestines, reducing weight, enriching the calcium, expelling toxins, clearing the stomach and the like. Traditional Chinese medicines including scutellaria baicalensis, cortex phellodendri, fructus forsythiae, wild chrysanthemums, honeysuckle flowers, heartleaf houttuynia herbs and the like are added to the components, so that the bacterium resistance is improved; besides, the addition amount is scientific, and the haws, the malt and the like are added for promoting growth; radix astragali, the Chinese yams and the like are added, so that the immunity is improved. The novel dog food is reasonable in corrosive resistance and fresh keeping, and in addition, vitamins in the soft dog food are hardly lost, so that the novel dog food is especially suitable for alimentary canal of dogs.
Owner:焦燕

Storage fresh keeping method of plant type agricultural products

The invention relates to the technical field of storage fresh keeping, in particular to a storage fresh keeping method of plant type agricultural products. The method comprises the following steps ofStep 1, treatment before harvesting; Step 2, ultrasonic soaking; Step 3, surface recrystallization; Step 4, partial freezing treatment; and Step 5, packaging. When the storage fresh keeping method isused, the shelf life of the plant type agricultural products can be prolonged; the cleaning is easy; no residue is left; the storage fresh keeping method is suitable for the storage of various kinds of fruits, vegetables and traditional Chinese medicinal materials; and the interior quality cannot be influenced. A membrane structure is sequentially formed on the surfaces of plant type agriculturalproducts; the surface layer functional group type of plant type crops is improved; the breeding of harmful microbes on the surface is prevented; a multilayer pore structure is formed at the surface layer; the air permeability and water permeability effects are improved; the breathing intensity of the plant type crops after the harvesting is inhibited; and finally, the membrane structure with a ultraviolet light resisting effect is also formed.
Owner:GUIYANG UNIV

Preparation method of melt-blown electret polymer filter material

The invention discloses a preparation method of a melt-blown electret polymer filter material, which comprises the following steps: S1, weighing a certain amount of polypropylene, an organic peroxide,a triazine derivative and a bacteriostatic agent, uniformly mixing, and carrying out extrusion modification reaction to obtain modified polypropylene master batch; S2, uniformly mixing the modified polypropylene master batch, polytetrafluoroethylene master batch, polypropylene master batch and polypropylene grafted maleic anhydride, heating for melting, and spraying a melt through a spinneret plate; S3, synchronously spraying and stretching the melt by taking fluidized modified nano activated carbon particles as traction airflow, and applying a magnetic field in the process, so that the concentration of the modified nano activated carbon particles is changed in a gradient manner from the center to two sides; and performing corona discharge, cooling and rolling to obtain the filter material disclosed by the invention. The filter material prepared by the invention has excellent characteristics of polypropylene and polytetrafluoroethylene materials, has efficient filtration and antibacterial properties, and meets the use requirements of melt-blown cloth and other filter materials in a long-term severe environment.
Owner:浙江派菲特新材料科技有限公司

Observable chick embryo transferring incubation design

The invention discloses an observable transferred chick embryo incubation technology which comprises the steps of incubation device construction and egg transferring incubation. The structure of an incubation device and the specific incubation process are optimized on the basis of an existing egg shell replacement chick embryo culture method, and the incubation device comprises an outer-layer hard container, a middle-layer egg-shaped container and an inner-layer egg shell; bacteriostatic water is contained in the outer-layer hard container, at least one hole is formed in the side face of the outer-layer hard container, and the hole is blocked through a cotton ball; the middle-layer egg-shaped container is a film egg-shaped container; and the inner-layer egg shell is a different-shell egg shell, and an observation opening is formed in the different-shell egg shell. The egg transferring incubation comprises the steps of transferring egg liquid containing chick embryos into the incubation device, constructing a bacteriostatic incubation environment, performing first constant-temperature incubation, ventilating and performing second constant-temperature incubation. The chick embryo incubation process is convenient to observe, meanwhile, the incubation rate is increased, and the hatching health condition is also improved.
Owner:WENZHOU VOCATIONAL COLLEGE OF SCI & TECH

Aluminum alloy processing liquid as well as preparation method and application thereof

The invention discloses aluminum alloy processing liquid as well as a preparation method and application thereof. The aluminum alloy processing liquid comprises the following components in parts by mass: 25-40 parts of water-soluble polyester, 1-2 parts of phosphate, 0-3 parts of boric acid, 20-30 parts of mixed alcohol amine, 2-4 parts of antirust agent, 1-3 parts of antibacterial agent, 0.05-0.15 part of antifoaming agent, 0.3-0.5 part of slow release agent and 20-42 parts of purified water. The aluminum alloy processing liquid is prepared by the following steps: adding the purified water, boric acid, antirust agent, mixed alcohol amine, slow release agent, water-soluble polyester, phosphate, antibacterial agent, purified water and antifoaming agent into a blending kettle according to certain order; and then stirring uniformly. The aluminum alloy processing liquid disclosed by the invention is used for processing aluminum alloy. In the invention, the water-soluble polyester and phosphate are applied to the aluminum alloy processing liquid for the first time, and the proportion is reasonable; the preparation method is simple in steps and convenient to operate; and the prepared aluminum alloy processing liquid is obviously transparent in color without turbidness and has good lubricating property, foam stability, hard water resistance and antirust property.
Owner:上海壹萨化学科技有限公司

Finishing agent for increasing comfort degree of wool knitted fabric and application thereof

The invention discloses a finishing agent for increasing the comfort degree of wool knitted fabric and application thereof. The finishing agent is prepared from a hydrophilic finishing agent, an antimicrobial finishing agent and a bio-enzyme finishing agent, wherein the hydrophilic finishing agent is used before a dyeing and printing technology and is capable of effectively increasing the moisture absorption rate of the wool knitted fabric and preventing the damage of the dyeing and printing technology to the moisture absorption rate of the wool knitted fabric in advance, so that the friction degree with skin can be reduced; the antimicrobial finishing agent is used after dyeing and printing, and the fitting and antimicrobial ability of the wool knitted fabric can be further increased; the bio-enzyme finishing agent is used in an after-finishing technology, not only can some size residues on the wool knitted fabric be removed, but also the softness of the wool knitted fabric can be effectively increased, so that the comfort degree of the wool knitted fabric can be further increased. According to the finishing agent and the application, provided by the invention, the treated wool knitted fabric has the advantages of soft hand feeling and small strength damage, the phenomenon of itchy skin is effectively prevented from happening, and the comfort degree is enhanced.
Owner:JURONG SHENTU TECH KNITTING FACTORY

Drug packaging bag with lining antibacterial film

The invention discloses a drug packaging bag with a lining antibacterial film, which belongs to the field of drug packaging bags. The drug packaging bag comprises a packaging bag main body, wherein ahanging hole is formed in the middle position of the upper end of the packaging bag main body; a reserved sub-bag is arranged in the middle position of the front end outer surface of the packaging bagmain body; a drug information label is printed on the lower end position of the front end outer surface of the packaging bag main body; a tear opening is arranged on one side outer surface of the packaging bag main body; and a second adhesive strip and a tearing guide line are arranged on a position, close to the tearing opening, of the upper end of the packaging bag main body. The drug packagingbag with the lining antibacterial film can effectively improve the antibacterial capability of the packaging bag, facilitates the storage of drugs in the bag, can effectively improve the corrosion resistance and wear resistance of the packaging bag, is more durable, can conveniently store the doctor advice information, can avoid the phenomenon that the information is directly written on the packaging bag and falls off, has good market competitiveness, and is worthy of being popularized and used.
Owner:安徽鸿宾医药包装有限公司
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