32results about How to "Exert antibacterial effect" patented technology

The invention discloses a high-nitrogen nickel-free antibacterial stainless steel watch case and a manufacturing method thereof. According to the high-nitrogen nickel-free antibacterial stainless steel watch case disclosed by the invention, Ag is combined with high nitrogen, so the antibacterial effect of Ag can be played, and the hardness and wear resistance of the watch case can be improved as well, therefore the high-nitrogen nickel-free antibacterial stainless steel watch case has a huge market value. According to the watch case disclosed by the invention, nickel element in the watch case is removed, the requirements of European Union ROSH environmental protection certification are fully carried out, so harms caused by nickel allergy are reduced to zero; moreover, the safety of the watch case is improved, and a quite good foundation is laid for China-made watch cases to break into and occupy international markets. Besides, according to the high-nitrogen nickel-free antibacterial stainless steel watch case disclosed by the invention, the mechanical properties of stainless steel are improved, good toughness and plasticity of the stainless steel are maintained; the strength of the stainless steel can be further improved; the yield strength can be higher than 2Gpa; the wear resistance of the stainless steel watch case is improved as well.

A process for preparing titanium oxide includes such steps as converting the Ti-contained aqueous solution to titanium hydroxide, adding hydrogen peroxide and generating thermal reaction to obtain the solution of anatase-type titanium oxide solution with complex group, and drying. It can be used to prepare coating solution, while has high adhesion and no corrosion to substrate.

The invention relates to herbal skin anti-bacteria gel containing propolis and a preparation method thereof. The main anti-bacteria active substances are propolis and traditional Chinese medicine extracts, and the gel also contains compound chlorhexidine acetate. The gel disclosed by the invention can effectively inhibit microorganisms such as coliform, canidia albicans and staphylococcus aureus from injecting the skin, so as to play the anti-bacterial and anti-inflammation roles; furthermore, auxiliary ingredients such as gel matrix, a humectant, a PH value regulator, a surfactant and a cosolvent are added, so as to obtain a gel product with steady performance; and such gel is good in moisture retention, effective components thereof are uniformly distributed, and the gel can achieve goodanti-bacterial and anti-inflammation effects by being smeared to the skin surface.

The invention provides a sanitary towel with essential oil blasting beads, and belongs to the technical field of sanitary products. A sanitary towel body of the sanitary towel with the essential oil blasting beads comprises a pure cotton surface layer 1, a first dust-free paper layer 2, a water absorbing layer 3, a second dust-free paper layer 4 and a leakage-proof breathable bottom layer 6; an essential oil blasting bead bag 5 is arranged between the second dust-free paper layer 4 and the leakage-proof breathable bottom layer 6; the essential oil blasting bead bag 5 comprises a first essential oil blasting bead bag body 5-1 and a second essential oil blasting bead bag body 5-2; the first essential oil blasting bead bag body 5-1 is arranged in the middle of the sanitary towel body; antibacterial essential oil is wrapped in the first essential oil blasting bead bag body 5-1; the second essential oil blasting bead bag body 5-2 is arranged in the middle of the tail wing of the sanitary towel body. In the using process of the sanitary towel with the essential oil blasting beads, the first essential oil blasting bead bag body corresponds to a vaginal orifice, and the antibacterial effect of the antibacterial essential oil in the first essential oil blasting bead bag body can be brought into play to the maximum extent; and the second essential oil blasting bead bag body corresponds to the hip, the skin of the hip can be cared, and bacterium breeding is inhibited.

The invention provides a salmonella broad-spectrum virulent bacteriophage. The preservation number of the bacteriophage is CCTCC NO: M 2020839. The invention also provides a preparation process and application of the salmonella broad-spectrum virulent bacteriophage, and the preparation process comprises fermentation and extraction; in the step of fermentation, a salmonella gallinarum attenuated vaccine strain is used as host bacteria for bacteriophage fermentation. The bacteriophage XPARCPS02 disclosed by the invention can be used for cracking salmonella of various serotypes and also has different degrees of cracking effects on drug-resistant bacteria; the salmonella typhimurium lysate lysate has a cracking capability on salmonella typhimurium, salmonella typhimurium drug-resistant bacteria, salmonella gallinarum, salmonella enteritidis, salmonella enteritidis drug-resistant bacteria, salmonella typhimurium, salmonella pullorum, salmonella paratyphi A, salmonella paratyphi B and salmonella dubicularis.

The invention relates to a macroscopic quantity preparation method for a macromolecule-based silver-loaded composite nanofiber membrane. The method comprises the steps of a spinning solution preparation step, an electrostatic spinning step and precursor reduction. According to the prepared macromolecule-based silver-loaded composite nanofiber membrane, the sizes of silver nanoparticles are stable, obvious agglomeration does not exist, and the distribution is even; the macromolecule-based silver-loaded composite nanofiber membrane has the advantages that the fiber length-diameter ratio is big, and the specific surface area is higher; therefore, the contact ratio of nano-silver and noxious bacteria in fiber is greatly increased, and the antibacterial effect of the nano-silver can be exerted to the maximum extent.

The invention relates to a method for preparing polysaccharide selenium copper having a bactericidal effect and belongs to the field of macromolecule complexation. Polysaccharide is co-heated with seleninic acid in a faintly acid aqueous solution to generate polysaccharide selenide; under neutral conditions, and the polysaccharide selenide and copper ions are processed through a co-heating method to prepare a polysaccharide selenium copper complex. The complex can be used as a food antimicrobial agent, a functional bio-fertilizer or a plant fungicide and have a bactericidal effect of selenium and copper, polysaccharide has effects of growth promotion, stress resistance, antivirus and property of film forming on plant surfaces, and the polysaccharide selenium copper can perform sterilization, prevent disease and promote crop growth.

The invention provides a compound ceftiofur sodium injection with significant antibacterial action. The compound ceftiofur sodium injection comprises the following components in parts by weight: 1-4 parts of ceftiofur sodium, 1-2 parts of magnolol, 0.5-1 part of sodium sulfite, 0.5-1 part of glycine and 1-2 parts of Tween. The injection disclosed by the invention is high in stability and simple in preparation process, has a good inhibiting effect on swine escherichia coli, has an accurate curative effect on porcine colibacillosis, is capable of reducing the dosage of a prescribed preparation and shortening the treatment cycle, and has a wide market prospect.

The invention provides a medicinal composition for treating vagina inflammatory diseases in a gestation period, and the method comprises the following components in parts by weight: 10 to 200 parts of clove, 10 to 200 parts of fructus psoraleae, 10 to 200 parts of peony root bark, and 10 to 200 parts of honeysuckle. The extraction method of active components comprises the following steps: distilling steam of the clove and the peony root bark to extract a mixture of clove oil and paeonol; 2) combining the clove and peony root bark dreg and rest drugs, heating and extracting by using an alcohol extraction method, concentrating the extract, and drying to prepare powder a; and 3) spraying the mixture of clove oil and paeonol into the powder a to prepare powder b. The powder b and proper excipient are combined to prepare suppository, lotion and oral preparations. The medicinal composition is suitable for a whole body and local part combined administration to treat vagina inflammatory diseases in a gestation period, is exact in curative effect and high in safety, has certain tonifying effect on pregnant women, and has the advantages of less adverse response and high patient compliance.

The invention provides an injection-use pharmaceutical composition comprising cefathiamidine and tazobactam sodium, and the pharmaceutical composition has a cooperatively antibacterial effect. The pharmaceutical composition comprises the following ingredients: by weight, 1-4 parts of the cefathiamidine, 1-2 parts of the tazobactam sodium, 2-6 parts of PLGA; 0.2-0.5 parts of L-arginine; 0.5-1 parts of PVP; 0.5-1 parts of mannitol; 0.5-1 parts of glycine; and 1-2 parts of tween. The pharmaceutical composition has the advantages of high stability, good redissolubility, simple preparation processes, a good inhibitory effect on staphylococcus aureus, staphylococcus epidermidis and staphylococcus epidermidis, and a definite curative effect, can reduce the dosage of a single prescription preparation and shorten the treatment period, and has broad market prospects.

The invention discloses a composite hydrogel material loaded with rosmarinic acid and a preparation method and application of the composite hydrogel material. The composite hydrogel material is prepared from liposome in which the rosmarinic acid is embedded and a temperature-sensitive type hydrogel, wherein the rosmarinic acid accounts for 0.1%-5% of the total mass of the liposome. The mixing mass / volume ratio of the rosmarinic acid-embedded liposome to the temperature-sensitive type hydrogel is 0.1 mg / ml-150 mg / ml. The rosmarinic acid-embedded liposome is prepared from lecithin and cholesterol, and the mass ratio of the lecithin to the cholesterol is (4 to 1) to (8 to 1). The liposome nanotechnology is adopted to embed the rosmarinic acid, the local concentration maintaining and deliveryof the rosmarinic acid can be more effectively realized, and a low-dose and high-efficiency therapeutic effect is achieved. Compared with pure rosemary acid, the antibacterial rate of the rosmarinic acid after being embedded in the liposome against staphylococcus aureus is significantly increased. The prepared composite hydrogel material is expected to be developed into a novel external-use material with a remarkable curative effect on acne, and good clinical application prospects are achieved.

The invention discloses a non-post-processing bacteriostatic blend. The blend is formed by three groups of fibers. The first group of fibers is fibers having an antibacterial property without bacteriostatic processing. The second group of fibers is fibers with softness and high moisture regain, and rigidity resistance is lower than 80cN and convention moisture regain is greater than 8%. The thirdgroup of fibers is chlorofibre fibers and / or modacrylic fibers with chloride, wherein cross-sectional flatness is greater than 1.08 and the convention moisture regain is less than 2.5%. The three groups of fibers comprise, by weight, 3% to 26% of the first group of fibers, 18% to 48% of the second group of fibers and 26% to 79% of the third group of fibers. In the invention, the fibers with the high moisture regain are adopted to absorb moisture as quickly as possible and transmit the moisture to the reverse side of the blend; the hydrophobic fiber with a special mechanism can transmit the water to the longitudinal direction of the fiber, the evaporation area of moisture is expanded, and the blend is dried as soon as possible to form the microscopic environment of moisture absorption and sweat releasing or moisture absorption and warm keeping; and a moist micro-environment required for bacterial reproduction is reduced so that a bacteriostatic fiber can achieve a bacteriostatic effect.

The invention discloses an antibacterial halogen-free flame-retardant PC / ABS composite material with high ball pressure temperature. The composite material mainly comprises the following components in parts by mass: 59-88 parts of PC, 520 parts of ABS, 4-12 parts of an organophosphorus flame retardant, 2-5 parts of a flexibilizer, 0.4-1 part of an antibacterial agent, 0.2-0.5 part of an anti-dripping agent, 0.2-1 part of a dispersing agent and 0.2-1 part of an antioxidant. The halogen-free flame-retardant PC / ABS composite material is good in antibacterial property, high in ball pressure resistant temperature, good in flame retardant property and white in color, various bright-colored products can be manufactured by adding the coloring agent, no halogen flame retardant is adopted, the flame retardant grade of the material is high, cost is low, smell is small, and large-area application and popularization are facilitated. The invention also discloses a preparation method of the composite material. The preparation method is simple to operate, low in cost, short in preparation period and convenient for large-scale production.

The invention relates to the field of food preservation, and particularly discloses a preparation method of frozen fresh walnuts. The preparation method comprises the following steps of S1, selectingwalnuts: picking green walnuts of 90% of maturity, and removing immature walnuts and bad walnuts to obtain green walnuts to be treated; S2, removing green seedcases, namely removing green seedcases from the to-be-treated green walnuts obtained in the step S1, and cleaning until no green seedcases remain on the surfaces, so as to obtain green seedcase-removed fresh walnuts; S3, performing fresh-keeping liquid treatment; S3, soaking the green seedcase-removed fresh walnuts obtained in the step S2 in a fresh-keeping liquid for 3-5 minutes; S4, freezing: storing the fresh walnuts without the greenseedcases under the condition that the temperature is (-12) to (-3) DEG C to obtain frozen fresh walnuts without the green seedcases, wherein the fresh-keeping liquid is prepared from the following components in parts by weight of 0.15-0.25 part of chitosan, 0.4-0.6 part of natamycin, 1.2-1.5 parts of calcium propionate and 16-20 parts of water. The frozen fresh walnuts prepared by the preparation method disclosed by the invention have a relatively long fresh-keeping period.

The invention relates to the field of antibacterial fabric materials, and discloses a preparation method of a composite antibacterial agent and application of the composite antibacterial agent to a polyester fabric. The preparation method of the composite antibacterial agent comprises the following steps that (1) amino modified nano zinc oxide is mixed with a halogen compound for a reaction to obtain halogen modified amino nano zinc oxide; and (2) the halogen modified amino nano zinc oxide and the antibacterial agent are mixed in an organic solvent, a catalyst is added, and a polymerization reaction is carried out under the action of the catalyst to obtain a nano zinc oxide halamine composite antibacterial agent. The antibacterial fabric prepared from the antibacterial agent has efficient antibacterial and deodorizing capacity.

The invention discloses a compound oral care solution. The compound oral care solution is prepared from the following raw materials in parts by weight: 0.15 to 0.3 part of blumea balsamifera oil, 0.2 to 0.3 part of callicarpa nudiflora extract, 0.05 to 0.1 part of alpinia oxyphylla oil, 10 to 15 parts of glycerol, 3 to 6 parts of ethanol, 2 to 5 parts of sorbitol, 1 to 2 parts of tween-20, 0.01 to 0.02 part of citric acid, 0.2 to 0.35 part of saccharin sodium salt, 0.25 to 0.35 part of peppermint oil, 0.1 to 0.3 part of essence and 20 to 50 parts of water. The invention further discloses a preparation method of the compound oral care solution. According to the compound oral care solution and the preparation method thereof, the compound oral care solution is highly sensitive to staphylococcus aureus, candida albicans and streptococcus mutans, is sensitive to escherichia coli and porphyromonas gingivalis, and can well prevent colonization of oral pathogenic bacteria on a dental acquired membrane, thereby avoiding formation of dental plaque and dental calculus.

A process for preparing titanium oxide includes such steps as converting the Ti-contained aqueous solution to titanium hydroxide, adding hydrogen peroxide and generating thermal reaction to obtain the solution of anatase-type titanium oxide solution with complex group, and drying. It can be used to prepare coating solution, while has high adhesion and no corrosion to substrate.

The invention provides a compound cefquinome sulphate injection which has a synergetic antibacterial effect. The compound cefquinome sulphate injection disclosed by the invention comprises the following components in parts by weight: 1-4 parts of cefquinome sulphate, 1-2 parts of sophocarpidine, 0.5-1 part of sodium sulfite and 1-2 parts of hydroxypropyl-beta-cyclodextrin. The compound cefquinome sulphate injection disclosed by the invention is high in stability, simple in preparation process and accurate in curative effect on colibacillosis in pig, and has a good inhibiting effect on colibacillosis in pig; the dosage of a prescribed preparation can be reduced; the treatment cycle can be shortened; and thus, the compound cefquinome sulphate injection disclosed by the invention has wide market prospect.

The invention provides an injection-use pharmaceutical composition comprising cefathiamidine and tazobactam sodium, and the pharmaceutical composition has a cooperatively antibacterial effect. The pharmaceutical composition comprises the following ingredients: by weight, 1-4 parts of the cefathiamidine, 1-2 parts of the tazobactam sodium, 2-6 parts of PLGA; 0.2-0.5 parts of L-arginine; 0.5-1 parts of PVP; 0.5-1 parts of mannitol; 0.5-1 parts of glycine; and 1-2 parts of tween. The pharmaceutical composition has the advantages of high stability, good redissolubility, simple preparation processes, a good inhibitory effect on staphylococcus aureus, staphylococcus epidermidis and staphylococcus epidermidis, and a definite curative effect, can reduce the dosage of a single prescription preparation and shorten the treatment period, and has broad market prospects.

The invention relates to the technical field of daily chemical products, and provides an antibacterial laundry detergent. The laundry detergent is characterized by being prepared from the following components in parts by weight: 100 to 120 parts of deionized water, 0.1 to 0.2 part of disodium ethylene diamine tetraacetate, 6 to 8 parts of fatty alcohol-polyoxyethylene ether, 30 to 35 parts of sodium ethoxylated alkyl sulfate, 1 to 5 parts of sulfonic acid, 8 to 12 parts of sodium hydroxide, 5 to 8 parts of citric acid, 1 to 2 parts of tert-butylhydroquinone, 10 to 20 parts of sucrose fatty acid ester, 0.01 to 0.05 part of silver ion bacteriostatic agent, 0.1 to 0.3 part of kathon and 0.1 to 0.5 part of essence. According to the technical scheme, the problem of safety of antibacterial laundry detergents in the prior art is solved.

The invention discloses a phthalocyanine-carboxymethyl chitosan conjugate, a preparation method and application thereof, and belongs to the field of medicine preparation. The phthalocyanine-carboxymethyl chitosan conjugate is a conjugate of monosubstituted amino-type zinc phthalocyanine and carboxymethyl chitosan, which has a dual functional group of phthalocyanine and carboxymethyl chitosan, It can be used for photodynamic antibacterial, photodynamic anticancer, photodynamic diagnosis and photodynamic disinfection; at the same time, carboxymethyl chitosan has excellent water solubility and biocompatibility, and can effectively improve the amphiphilicity and biophase of phthalocyanine. Capacitance, and reduce the toxicity of phthalocyanine, improve the clinical application value of phthalocyanine.

The invention discloses an antibacterial implanted tooth root and a manufacturing method thereof. The implanted root comprises: an implant body, a connecting screw fixed in the implant body, an abutment fixed on the connecting screw and used for connecting a crown, formed on The antibacterial film on the surface of the implant, the elastic sealing film arranged between the implant and the abutment, the groove ring formed on the implant, the groove ring formed on the abutment and corresponding to the snap-in connection of the groove ring part, the sealing protrusion arranged on the abutment; the elastic sealing film forms an inner seal with the groove ring and the clamping part; the elastic sealing film forms an outer seal with the sealing protrusion and the edge of the implant; Realize inner seal and outer seal at the same time to achieve antibacterial, by adding antibacterial film on the surface of the implant, to achieve antibacterial and at the same time increase the proliferation and adhesion of cell tissue, speed up the recovery speed and effect of implant teeth, and prolong the Lifespan of dental implants.

The invention discloses a preparation method of a copper-silver composite material, and belongs to the technical field of preparation and processing of silver. The method comprises the following steps: polishing pure copper plates and silver plates, alternately stacking the pure copper plates and the silver plates, then carrying out spark plasma sintering to prepare a rough blank, and detaching the rough blank; the rough blank is longitudinally cut into a cylindrical metal rod, the two ends of the metal rod are fixed, torsional deformation is conducted, and heating is conducted in the torsional process; and twisting, forging, rolling, polishing and waxing to obtain a final product. The pattern of the copper-silver composite material prepared by the method is stripe-shaped, and the copper-silver composite material is composed of pure copper and pure silver which are distributed alternately, has strong artistic sense and ornamental value, and is widely applied to preparation of jewelry, ornaments and artworks.

The invention belongs to the field of biotechnology, and in particular relates to a strain of bacillus amyloliquefaciens and its application. The technical solution adopted is: to screen and isolate a strain of Bacillus amyloliquefaciens MY001 with chitin-degrading ability from the soil where asparagus is planted, and it was preserved in the General Microbiology Center of China Microbiology Culture Collection Management Committee on July 26, 2017. Species name: Bacillus amyloliquefaciens (Bacillus amyloliquefaciens) MY001, deposit number: CGMCC NO.14460. The strain can be used for the inhibition of asparagus stem blight, and the specific method of use is as follows: at a concentration of 1×10 7 Adding 1% colloidal chitin to the cfu / mL bacterial agent of Bacillus amyloliquefaciens MY001 forms a composite bacterial agent, which is of great significance for the control of asparagus stem blight.

The invention provides a compound cefquinome sulphate injection which has a synergetic antibacterial effect. The compound cefquinome sulphate injection disclosed by the invention comprises the following components in parts by weight: 1-4 parts of cefquinome sulphate, 1-2 parts of sophocarpidine, 0.5-1 part of sodium sulfite and 1-2 parts of hydroxypropyl-beta-cyclodextrin. The compound cefquinome sulphate injection disclosed by the invention is high in stability, simple in preparation process and accurate in curative effect on colibacillosis in pig, and has a good inhibiting effect on colibacillosis in pig; the dosage of a prescribed preparation can be reduced; the treatment cycle can be shortened; and thus, the compound cefquinome sulphate injection disclosed by the invention has wide market prospect.

The invention discloses a non-post-processing bacteriostatic blend. The blend is formed by three groups of fibers. The first group of fibers is fibers having an antibacterial property without bacteriostatic processing. The second group of fibers is fibers with softness and high moisture regain, and rigidity resistance is lower than 80cN and convention moisture regain is greater than 8%. The thirdgroup of fibers is chlorofibre fibers and / or modacrylic fibers with chloride, wherein cross-sectional flatness is greater than 1.08 and the convention moisture regain is less than 2.5%. The three groups of fibers comprise, by weight, 3% to 26% of the first group of fibers, 18% to 48% of the second group of fibers and 26% to 79% of the third group of fibers. In the invention, the fibers with the high moisture regain are adopted to absorb moisture as quickly as possible and transmit the moisture to the reverse side of the blend; the hydrophobic fiber with a special mechanism can transmit the water to the longitudinal direction of the fiber, the evaporation area of moisture is expanded, and the blend is dried as soon as possible to form the microscopic environment of moisture absorption and sweat releasing or moisture absorption and warm keeping; and a moist micro-environment required for bacterial reproduction is reduced so that a bacteriostatic fiber can achieve a bacteriostatic effect.

The invention discloses a chitosan / polycaprolactone composite nanofiber membrane material. The chitosan / polycaprolactone composite nanofiber membrane material is prepared by the following steps that a6-15wt% polycaprolactone solution is prepared, and 1-4wt% mupirocin is added; a 5-12wt% chitosan solution is prepared, and 0.5-8wt% lidocaine hydrochloride is added; the solutions are put into a feeding device of electrospinning equipment, the feeding rate is 8-50[mu]L / min, the receiving distance is 10-20cm, and the rotating speed of a receiver is 100-250 rpm / min; a high-voltage power supply is turned on, a voltage of 15-25 kV is applied, and the solutions are sprayed onto the fiber receiver for forming; and drying is carried out to remove the solvent, so that a composite nanofiber membrane is obtained. The composite nanofiber membrane exhibits excellent hydrophilicity, swelling rate, absorption capacity, thermal stability, mechanical properties and effective blood clotting ability, and further exhibits excellent cell compatibility and antibacterial activity; different release curves of different functional drugs can be realized; and the wound healing process can be significantly enhanced, and a synergistic effect of wound healing is achieved.

The invention discloses a zinc phthalocyanine-chitosan oligosaccharide conjugate as well as a preparation method and application thereof. The zinc phthalocyanine-chitosan oligosaccharide conjugate refers to a conjugate of terminal carboxyl mono-substituted zinc phthalocyanine and chitosan oligosaccharide or quaternary ammonium derivatives thereof. The zinc phthalocyanine-chitosan oligosaccharide conjugate can be applied to photodynamic antibiosis, photodynamic cancer resistance, photodynamic diagnosis and photodynamic disinfection. The zinc phthalocyanine-chitosan oligosaccharide conjugate disclosed by the invention has zinc phthalocyanine and chitosan oligosaccharide or chitosan oligosaccharide ammonium salt double functional groups, and the synergy therapy effect can be achieved during photodynamic antibiosis; meanwhile, the chitosan oligosaccharide has excellent water solubility and biocompatibility, and can achieve the effects of effectively improving the amphiphilic property and biocompatibility of the zinc phthalocyanine, reducing the toxicity and improving the clinical application value of the zinc phthalocyanine.