9441 results about "Antibacterial property" patented technology

A luer fitting is disclosed. The luer fitting includes a body having a first end and a second end, wherein the first end comprises an antibacterial component disposed therewith. The luer fitting is connected over a catheter that has been primed with a locking solution. The antibacterial component is fluidly engaged with the locking solution such that the antibacterial component diffuses through the locking solution. A method of reducing antibacterial activity in a catheter utilizing the fitting is also disclosed.

An anti-fingerprint coating construction (23) for application to a surface of a substrate (21) includes a layer formed of a material selected from the group consisting of a hydrophobic nano-composite material, an oleophobic nano-composite material, and a super-amphiphobic nano-composite material. When the anti-fingerprint coating construction is employed on a metal surface or a nonmetal surface, sweat or / and grease on fingers of a user is not liable to be adhered to the surface. Therefore a fingerprint of the user is prevented from being imprinted on the surface, and the surface can remain clean and aesthetically pleasing. Because the anti-fingerprint coating construction is easy to clean, the anti-fingerprint coating construction has good anti-corrosion and antibacterial properties. The anti-fingerprint coating construction contains no chromium, and therefore does not need to be processed by an acid or alkali solution. This makes the anti-fingerprint coating construction environmentally friendly.

The flexible, reusable packaging container of the present invention is comprised of a packaging material. The packaging material is comprised of one or more layers of coating disposed on one or more layers of textile substrate. The coating layer may be comprised of a stiffening agent for providing support to the packaging container. The stiffening agent may provide a gas and / or liquid impermeable barrier between the contents of the container and the textile substrate. The stiffening agent may also include chemicals which impart antifungal or antibacterial properties to container. The textile substrate typically provides an aesthetically pleasing feel and appearance to the outside of the packaging container, as well as providing functional attributes such as water repellence, stain resistance, and / or anti-static resistance. The resulting packaging container possesses increased strength, puncture resistance, and resistance to de-lamination over the current paper or plastic packaging containers.

To provide a glass substrate for a display cover glass not only having excellent strength and antibacterial properties but also having a high transparency and a high visible transmittance suitable as a cover glass for a display device. A glass substrate for a display cover glass, which comprises a surface compressive stress layer and an antibacterial substance-containing layer formed on the glass substrate surface, characterized by having a ratio (T1 / T2) of the transmittance T1 at a wavelength of 428 nm to the transmittance T2 at a wavelength of 650 nm of the glass substrate of at least 0.95, and a transmittance at a wavelength of 428 nm of at least 86% when the thickness of the glass substrate is from 0.1 to 3.0 mm.

Described herein is a physiologically-balanced, acidic solution. Typically the solution is prepared by a chemical reactions or by the electrolysis of a solution comprising a mixture of an inorganic salt to form a physiologically balanced solution. This invention also relates to methods for use of the solutions, including a specialized bandage which may be used in combination with the solutions, or optionally with other topically applied materials. A mixture of inorganic salts and, optionally minerals, is used in order to mimic the electrolyte concentration and mixture of body fluid in an isotonic state. The solution typically comprises of one halide salt of lithium, sodium, potassium, calcium, and other cations. Typically the halide is fluoride, chloride, bromide, or iodide, and most typically chloride. A typical electrolyzed solution of the present invention has a pH within the range of about 2 to about 5, an oxidation reduction potential within the range of about +600 mV to about +1200 mV, and hypohalous acid concentration in the range of about 10 ppm to about 200 ppm. The solution has bactericidal, fungicidal, and sporicidal properties. The composition of the invention is nontoxic and has antibacterial properties, and is useful in any application in which antimicrobial properties are desirable.

The invention discloses a nano silver bacterial fibre preparation method comprising: adding fibre into AgNO3 solution, and adsorbing the mixture; and carrying out reduction reaction on the adsorbed fibre to obtain the nano silver bacterial fibre. The invention has simple production step, and the obtained product has the advantages of even silver nanoparticle distribution and long-lasting fibre antibacterial property and can be washed several times. The invention is suitable for natural fibre and synthetic fibre and can be used for health-care underwear, medicinal gauze, clothes, decorative textiles and the like.

The invention relates to a graphene blend regenerated cellulose fiber. The graphene blend regenerated cellulose fiber is prepared by mixing an oxidized graphene solution and a regenerated cellulose solution, molding a mixture through a viscose wet spinning process and reducing the mixture; the dry breaking strength of the graphene blend regenerated cellulose fiber is not less than 1.8 cN / dtex, the wet breaking strength of the graphene blend regenerated cellulose fiber is not less than 0.9 cN / dtex, the dry breaking elongation of the graphene blend regenerated cellulose fiber is not less than 16%, the mass specific resistance of the fiber is 1-9X106 omega.g / cm2, and the thermal decomposition temperature of the fiber is not lower than 400 DEG C; and with the regenerated cellulose fiber as a matrix, the prepared graphene blend regenerated cellulose fiber has the advantages of good moisture absorption, good air permeability, soft handle and good dyeing performance and has the characteristics of ultrahigh strength, thermal conductivity, electric conductivity, antibacterial property and the like of the graphene; the conductive and thermal properties of the fiber are both improved by being compared with those of the traditional regenerated cellulose fiber; the antibacterial property of the fiber is additionally provided; and the graphene blend regenerated cellulose fiber provided by the invention has the advantages of simple production process, easiness in operation, and higher yield. People estimate that the developed graphene blend regenerated cellulose fiber can be widely applied to the field of costumes, industrial textiles and the like.

The invention discloses a preparation method of a hydrophilic antimicrobial film of which the surface is coated with dopamine and polyethyleneimine cations. The preparation method comprises the following steps that a base film is prepared, the base film is immersed in a dopamine solution, a polydopamine layer is formed on the surface of the base film by dopamine auto-agglutination, and the polydopamine layer and a polyethyleneimine aqueous solution undergo a reaction so that the hydrophilic antimicrobial film is prepared by the cationization reaction. The preparation method is simple and easy and has mild reaction conditions. The prepared hydrophilic antimicrobial film has excellent hydrophilicity and antibacterial properties, reduces adherence of microbes such as organic matters and bacteria, has a bacterium killing capability and prolongs a film service life.

The antibacterial polypropylene material consists of polypropylene resin 100 weight portions, stuffing 25-35 weight portions, toughening agent 5-15 weight portions, antiseptic 0.2-0.8 weight portion, dispersant 0.5-1.5 weight portions, antioxidant 0.1-0.5 weight portion and ultraviolet absorber 0.1-0.5 weight portion. The polypropylene resin is homopolypropylene, and the antiseptic is compounded with nanometer silver and organosilicon antiseptic. The present invention also provides the preparation process of the antibacterial polypropylene material with low production cost, excellent antiseptic performance.

The invention discloses a method for preparing antibacterial nanometer silver colloid, belonging to the technical field of nanometer biological materials. The method uses a chemical reduction method, comprising the following steps: dissolving water-soluble protective agent in silver nitrate water solution with the concentration of 0.001-0.1mol / L, wherein the mass ratio of protective agent to silver nitrate is 0.5-10.0:1; carrying out ice bath on sodium borohydride water solution with the concentration of 0.001-0.2mol / L for 10-30min; and dropwise adding the silver nitrate water solution containing protective agent in the sodium borohydride water solution with the speed of 30-60 drop / min, stirring by a magnetic stirrer, stirring for 20-40min after dropwise adding to prepare the nanometer silver colloid with the grain size of 5-80nm, wherein the mol ratio of the sodium borohydride to the silver nitrate is 1.0-30.0:1. The nanometer silver colloid prepared by the invention has the advantages of high concentration, high stability, high dispensability, and obviously-enhanced antibacterial property.

The invention discloses a melt-blown polypropylene material as well as a preparation method and application thereof. The melt-blown polypropylene material comprises the following components: 80-99 parts of polypropylene resin; 0.5 to 10 parts of antibacterial and antiviral electret masterbatch; 0.1 to 1 part of a free radical initiator; 0.1 to 0.5 part of a nucleating agent; 0.01 to 3 parts of anantioxidant; 0-3 parts of a lubricant. According to the invention, inorganic antibacterial and antiviral particles are introduced into melt-blown polypropylene; the material is endowed with intrinsicantibacterial and antiviral characteristics; after the melt-blown non-woven fabric is prepared, when viruses and bacteria are filtered, the viruses and bacteria remain on the melt-blown layer, the nano material on the composite material can rapidly wrap the viruses and bacteria, attack the bacteria and viruses, synergistically destroy the structure of the bacteria and viruses and block electron transfer of the bacteria and viruses, so that the effects of killing the viruses and bacteria and the like are achieved, and the material has excellent antibacterial performance and antiviral performance and high filtering efficiency.

The invention relates to medical chitosan fiber in the textile processing field and a preparing method thereof, the method for preparing spinning fluid comprises the following steps: arranging the chitosan powder in glacial acetic acid water solution and slowly dissolving by stirring under the condition of controlling temperature and time, wherein the dissolution temperature is 10-30DEG C, the dissolution time is 10-48h, and the stirring speed is 60-180r / min, wherein the chitosan powder occupies 3%-10%, dissolvent glacial acetic acid occupies 1%-5% and the other is water in the spinning raw materials, the chitosan content is more than 99.9% in chitosan fiber, and the chitosan fiber has higher molecular weight, sufficient amido, steady fiber structure, and good antibacterial property, brute force and hygiene security property.

The invention relates to a modified chinlon fiber, a preparation method and application. Even dispersion of graphene particles in a chinlon base material is achieved through a physical method, the process is simple, no dispersing agent is needed, and industrial production is easy. Graphene, especially biomass graphene is introduced into chinlon, so that the modified chinlon fiber has a low-temperature far infrared function, and the far infrared normal emissivity of the modified chinlon fiber is 0.85 or above. The antibacterial property of the modified chinlon fiber is 90% or above, and the mechanical strength and breathability are excellent.

The invention provides an antistatic, antibacterial and graphene-reinforced composite polyester fiber, which is characterized in that the composite polyester fiber comprises a component A and a component B, wherein the component A is polyester excluding graphene, and the component B is polyester including 0.3-3.0wt% of graphene. The invention also provides a preparation method of the composite polyester fiber. The composite polyester fiber provided by the invention is low in cost, high in strength, and high in antistatic and antibacterial properties.

An alcohol- or glycol-soluble, water-insoluble, disinfectant composition and a method of using the same for disinfecting and for providing a prolonged antimicrobial property to a variety of surfaces, including skin. The composition comprises at least one alcohol or glycol and an antimicrobial polymer that is capable of imparting an antimicrobial property to a surface without the use of a metal or a metal-containing compound. The composition is applied to a surface and allowed to evaporate leaving a coating of antimicrobial polymer. Alternatively, the composition is incorporated into or within the substrate.

The invention relates to a preparation method of a functional fabric, and belongs to the technical field of textile materials. Functional nanoparticles are compounded on the surface of the fabric through the preparation of the functional nanoparticles and the preparation of the functional fabric. The existence of vinyl polysiloxane overcomes high adsorption capacity of functional nanoparticle aggregate, so that the uniformly dispersed functional nanoparticles are firmly adhered to the surface of the fabric, and the fabric has multiple functions of ultraviolet resistance, super-hydrophobicity, pollution resistance, antibacterial property, health and the like through the synergistic effect of the vinyl polysiloxane and the functional nanoparticles. According to the preparation method of the functional fabric disclosed by the invention, the vinyl polysiloxane is efficiently utilized, the productive value of the vinyl polysiloxane is improved, and the application of the vinyl polysiloxane to other fields is developed; moreover, the whole process is simple in equipment, relatively low in cost and free of pollution to ecological environment, and has a great application prospect.

A nano-class mesoporous Ag-carried antibacterial agent used for detergent, cosmetics, water treating, textile, etc contains inorganic oxide as carrier with orderly mesopore structure and Ag as active antibacterial component. Its advantages are large specific surface area, broad spectrum, high effect and durability, and no damage to people.

The invention discloses a natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties and a preparation method thereof. The natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties comprises the following raw materials in parts by weight: 10-35 parts of natural fiber, 50-85 parts of polypropylene, 1-10 parts of compatilizer, 0.5-2 parts of coupling agent, 0.1-1 part of antioxidant, 0.5-2 parts of lubricant and 0.2-2 parts of mildewproof and antimicrobial agent. By using the natural fiber, which has the advantages of low price, abundant resources, high specific modulus and low density, to prepare the reinforced polypropylene composite material for vehicles, the production cost can be lowered. By using the combination of the alkali solution, coupling agent and compatilizer to treat the natural fiber, the hydroscopic property of the fiber is lowered. By adding the mildewproof and antimicrobial agent, the mildewproof and antimicrobial properties of the natural-fiber-reinforced polypropylene composite material with mildewproof and antibacterial functions can be greatly improved, so that the composite material is beneficial to human health in application, and has longer service life.

The invention relates to an omnidirectional antibacterial intelligent type air purifier for a vehicle, which comprises a shell, an air purification component, a fan power component, an energy component, an induction sensor component, a negative-ion generator and a display intelligent control component. The omnidirectional antibacterial intelligent type air purifier for the vehicle uses a nano silver modified titanium dioxide as a photocatalyst, thereby increasing photocatalysis effect and sterilization antibacterial performance. The omnidirectional antibacterial intelligent type air purifier for the vehicle uses an ultraviolet light emitting diode as a ultraviolet light source, thereby guaranteeing the photocatalyst to be capable of playing the role of degrading pollutants efficiently. The inner surface and the outer surface of an enclosure all have antibacterial performance, thereby guaranteeing bacteria not to live on the surface of an airframe of the omnidirectional antibacterial intelligent type air purifier for the vehicle, and guaranteeing personal safety. The omnidirectional antibacterial intelligent type air purifier for the vehicle can automatically induct air conditions, adjusts purification power in real time, and has intelligent control function.

A knitted sock has an inner layer 2 comprising a toe end 4 and an outer layer 3 comprising a toe end 7. The inner and outer toe ends are aligned and joined wale stitch to wale stitch to form a composite toe end, which is closed to provide a flat toe seam 10. The layered sock is manufactured complete in a single process being knit continuously from the inner toe end to the outer toe end. It comprises reciprocated heel and toe portions. The foot portion of the inner layer is knit from a yarn with properties such as a low coefficient of friction and / or antifungal / antibacterial properties. The low friction fiber is a fluoropolymer such as polytetrafluroethylene. The outer layer may comprise a cushion structure.

A composition of matter with antimicrobial and antibacterial properties for treatment of water, wastewater, processed food and for use as a food additive is provided. The antimicrobial composition inhibits cellular growth of known pathogenic, indicator and spoilage organisms, such as salmonella, stahphylococcus, listeria, E-coli, aerobic and anerobic organisms in wastewater and the like. The antimicrobial composition of the present invention is useful in many situations and conditions in need of disinfectants and sanitizers. One of the primary benefits of the antimicrobial agent is that it inhibits the growth of bacteria that have become antibiotic resistant. In addition, the antimicrobial composition herein does not have any known toxicity to man or the environment.

The invention relates to a microporous polyether urethane elastomer composite material and a preparation method thereof. The composite material is formed by the prepolymerization reaction of a polyhydric alcohol component A and a prepolymer component B, wherein the polyhydric alcohol component A comprises the following raw materials in the formula: 20 to 90 parts of polyoxytrimethyl-ene polyhydric alcohol, 5 to 50 parts of polyether polyol II, 5 to 50 parts of polymer polyether polyol, 2 to 30 parts of chain extender, 0.5 to 2 parts of nanometer graphene, 0.2 to 4 parts of foaming agent, 0.2 to 2 parts of foam homogenizing agent and 0.2 to 4 parts of catalyst; and the prepolymer component B comprises the following raw materials in the formula: 30 to 60 parts of diisocyanate, 4 to 20 parts of polyisocyanate modified by carbodiimide and 20 to 60 parts of polyoxytrimethyl-ene polyhydric alcohol. The polyether polyol II is formed by one or two of polyoxytrimethyl-ene epoxyethane copolyether polyol or / and polyethylene tetrahydrofuran polyol. The composite material provided by the invention is excellent in comprehensive mechanical property, antibacterial property and definite flame resistance.

The invention discloses a silk-fibroin-based antibacterial nanofiber and a preparation method thereof. The nanofiber comprises the following components in parts by weight: 40-98 parts of silk fibroin, 1-10 parts of titanium dioxide and 1-60 parts of chitosan. The preparation method comprises the following steps: degumming and drying silk to obtain fibroin, processing fibroin to prepare a regenerated silk fibroin film, dissolving silk fibroin, titanium dioxide and chitosan in a polar solvent according to a certain mass ratio to prepare a spinning solution with the mass concentration of 0.01-80%, and preparing the silk fibroin-based antibacterial nanofiber with the average diameter of 10-1000 nm in a room-temperature state by electrostatic spinning equipment. The silk fibroin-based antibacterial nanofiber newly developed by the invention has an antibacterial ratio of more than 95%, has the characteristics of good biocompatibility and excellent mechanical performance while having the characteristic of long antibacterial property, and is suitable for biomedical materials.

The invention relates to a medical hydrogel composition, a medical hydrogel as well as a preparation method and an application of the medical hydrogel. The medical hydrogel composition consists of a first component and a second component, wherein the first component includes polylysine and polyethyleneimine; the second component includes one or more of 4arm-polyethylene glycol-succinimidyl glutarate, 4arm-polyethylene glycol-succinimidyl succinate and 4arm-polyethylene glycol-succinimidyl carbonate, wherein the polymerization degree of the polylysine is above 20, preferably 25-35. The medical hydrogel disclosed by the invention is low in swelling degree, which is just 10-50%, and the medical hydrogel is applicable to narrow parts that cranial, spinal and peripheral nerves are densely distributed. In addition, the medical hydrogen disclosed by the invention is good in biocompatibility and is excellent in antibacterial property and biodegradability. Moreover, the medical hydrogel disclosed by the invention is also non-irritant to tissues.

The invention belongs to a manufacture method of an antibacterial conductive acrylic fiber, which is characterized by being composed of the following steps: (1) arranging the acrylic fiber into a reaction vessel, then pouring a solvent into the reaction vessel, dissolving copper salt containing Cu<2+> into the solvent, adjusting the pH valve of the solution to be between 1.5 to 3.0, then adding a reducer and heating, maintaining the temperature of the solution to be between 90 to 100 DEG C, carrying out reduction on the Cu<2+> by utilizing the reducer to generate Cu<+> and lead the Cu<+> to be absorbed on the acrylic fiber; (2) adjusting the pH value of the solution to be between 1.5 to 3.0 and then maintaining the temperature of the solution to be between 40 to 120 DEG C, adding salt containing sulfur atoms and leading a great amount of Cu<+> to be oxidized to generate the Cu<2+> after the reaction time lasts 2 to 4 hours; thereby generating a sulfide of copper that is not easy to be dissolved in the solvent to lead the sulfide of copper to be sufficiently and uniformly dispersed on the surface of the whole fiber. The copper sulphide in the acrylic fiber manufactured by utilizing the method is dispersed on the surface of the whole fiber. The self physical and chemical characteristics of the copper sulphide lead the fiber to have excellent antibacterial property and conductibility; the copper sulphide on the fiber surface is not easy to fall off and has excellent anti-washing property.

The invention relates to imparting surfaces with nanometer sized structures that provide bactericidal properties to the surface and devices. In one embodiment, the present invention provides a bactericidal surface with nanometer sized pillars created by imprinting a softened polymer surface with a mold. In another embodiment, the nanometer sized pillars are part of a medical device with antibacterial properties.

An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.

Hop beta acids are improved with respect to their antibacterial properties, especially their anti-Listeria properties. Enhancement in this regard is especially useful for the treatment of food products which are susceptible to bacterial contamination. This can be especially important when the hop beta acids are to be used in surface application onto the food products. The hop beta acids are rendered more effective by combining them with a food grade acid, a potassium ion source, and an optional antioxidant in a carrier solvent such as, for example, a food grade alcohols or a food grade glycol. The improved hop beta acid compositions of this invention provide increase stability, higher hop beta acid concentrations, and / or higher anti-Listeria activities.

The invention relates to a nanometer silver collosol, a preparation method and an application thereof. The preparation method comprising the following steps: dissolving reductor, alcohol and fatty alcohol in a closed reactor to prepare a mixed dispersion reductor solution; and then carrying out reaction between a silver salt alcohol solution and the mixed dispersion reductor solution for 6-72 hours under the temperature of 35-70 DEG C to obtain the nanometer silver collosol. The nanometer silver collosol has good antibacterial property and is very stable, safe in use and low in production cost, thereby being extensively used for the antibacterial processing of textiles and the antibacterial and deodorizing processing of shoes and having strong market competitiveness.