33results about How to "Long duration of sterilization" patented technology

The invention provides a foam dressing containing a composite silver-zinc antibacterial material and a preparation method of the foam dressing. The foam dressing containing the composite silver-zinc antibacterial material comprises polyurethane foaming plastic and the composite silver-zinc antibacterial material, wherein the composite silver-zinc antibacterial material is adhered to the inside of the polyurethane foaming plastic, comprises the following raw materials in content: nano silver, nano zinc and a nano inorganic carrier; and the composite silver-zinc antibacterial material contains the following raw materials in percentage by mass: 10%-20% of silver and 20%-40% of zinc. The composite silver-zinc antibacterial material is dispersed into the foam dressing in a manner of foam molding or ultrasonic dipping together with foam. The foam dressing containing the composite silver-zinc antibacterial material is capable of effectively absorbing diffusate of the wound surface, and effectively inhibiting growth and breeding of staphylococcus aureus, pseudomonas aeruginosa and candida albicans.

The invention discloses an air filter type bacterial cellulose mask and a production method thereof. The mask is made of dried bacterial cellulose which is used as a mask frame material. The preparation method comprises the following steps: selecting acetobacter xylinum as a type strain, and culturing the acetobacter xylinum to obtain a bacterial cellulose membrane; and after soaking the membrane in acid liquor and alkali liquor, washing the soaked membrane till the rate of impurities is less than 0.5 percent, soaking the membrane in nano-silver solution, then drying the membrane by adopting a freeze drying mode, and obtaining the air filter type bacterial cellulose mask through compound preparation. The preparation process is simple, the filter performance of the mask can be effectively improved by using the bacterial cellulose as a material, and the bactericidal and antitoxic capacities of the mask are enhanced by soaking in the nano-silver solution; and the mask has the characteristics of low production cost, strong adsorption capacity, high bactericidal activity, long durative bactericidal time and the like, and can effectively reduce resource consumption and protect ecological environment.

The invention discloses a water treatment pharmaceutical composition and an application thereof. The water treatment pharmaceutical composition contains amino acids having a scale and corrosion inhibition function, tetracycline antibiotics having sterilization functions, and an enzyme for playing a synergistic effect on the amino acids and antibiotics. The invention further discloses an application of the water treatment pharmaceutical composition in water treatment. A performance estimation result of the pharmaceutical composition indicates that the scale inhibition rate of calcium carbonate scale inhibition is larger than 99%, the corrosion rate of a dynamic simulation test is 0.024 mm/a, and the minimum number of heterotrophic bacteria within 72h can reach 1.4*10<2> pieces/ml. The water treatment pharmaceutical composition is low in dosage, free of phosphorus, strong in scale inhibition ability, good in corrosion inhibition, good in sterilization effect and long in duration.

The invention discloses compound antibacterial coating containing silicon dioxide and a preparation method thereof. The coating comprises porous silicon dioxide, silver attached in the porous silicondioxide and a titanium dioxide nano-antibacterial material, and is prepared from silver-containing nano-powder, nano-titanium dioxide, ultrafine porous silicon dioxide and other nano-metal powder, wherein the effective content of silver is 12.0-25.0 percent by weight, the effective content of titanium dioxide is 18.0-32.0 percent by weight, the effective content of ultrafine porous silicon dioxideis 28.0-58.0 percent by weight, and other metal powder is 0-30.0 percent by weight.

The invention belongs to the technical field of medical bacteriostatic agents, and particularly relates to a composite efficient sterilization disinfectant. The composite efficient sterilization disinfectant is prepared from the following components in percentage by weight: 0.2-1.5% of a biguanide compound, 0.05-0.5% of single-chain quaternary ammonium salt, 0.1-0.5% of double-chain quaternary ammonium salt, 0.01-1% of aloe extract and the balance of water. The composite efficient sterilization disinfectant prepared by the invention does not produce precipitates after being placed for a long time, has the characteristics of quick effect and long sterilization duration, and has a lasting sterilization effect for several hours after being sprayed to the skin surface and mucous membrane of ahuman body and the surface of an object. In addition, various bacteria and viruses can be effectively killed, and the sterilization rate reaches 99.99%.

The invention discloses a tree branch sterilization coating agent as well as a preparation method and the application thereof, and relates to the field of application of agricultural bactericides. Thetree branch sterilization coating agent comprises an agent A containing bactericidal components and an agent B serving as a matrix, wherein the agent B is a water-based interior wall coating; the agent A is a methoxyacrylate bactericide and is an original medicine or various preparations using a methoxyacrylate compound as a main bactericidal component; and the coating agent contains 1-2.5 g/L ofmethoxyacrylate bactericide. A protective film layer formed by the tree branch sterilization coating agent on branches of trees not only can effectively protect the branches from infection of pathogenic bacteria as well as sunlight and low-temperature damage, but also can greatly prolong the efficacy lasting period of the bactericidal component and improve the internal absorption treatment effectof the bactericidal component; in addition, the tree branch sterilization coating agent is simple in formula, convenient to prepare and use, and convenient for large-scale promotion and application.

The invention relates to a disinfectant for animals and its preparation method and use. The disinfectant for animals comprises a mother liquor and water, wherein the mother liquor comprises: by weight, 2.5 to 3 parts of chlorhexidine acetate, 2 to 2.5 parts of benzalkonium bromide, 1.2 to 1.7 parts of triton and 1.2 to 1.7 parts of glutaraldehyde. The preparation method comprises the following steps of mixing chlorhexidine acetate, benzalkonium bromide and glutaraldehyde of the mother liquor at a normal temperature, adding water into the mother liquor to obtain a mixed solution, wherein the weight of the water is 3 times of the total weight of chlorhexidine acetate, benzalkonium bromide and glutaraldehyde, cooling the mixed solution to a temperature of -5 DEG C, keeping the temperature for 8 hours, gradually heating the mixed solution to a temperature more than 50 DEG C, adding triton into the mixed solution while heating the mixed solution to a temperature of 90 to 100 DEG C so that triton is completely dissolved in the mixed solution, then adding water into the mixed solution containing triton, and cooling to a normal temperature to obtain the disinfectant for animals. The disinfectant for animals can be used for fed animals and aquatic products and has strong bactericidal power, a wide antimicrobial spectrum, wide purposes, stable performances, high use safety, short onset time and long sterilization lasting time.

A dialkyl quaternary ammonium salt as disinfecting algicide is prepared from alamine, bromohydrocarbon (or halohydrocarbon) and water through thermal reaction, and features high disinfecting and algiciding power. It can be used for treating the circulated cooling water.

The invention discloses an antibacterial paint containing porous organisms and a preparation method thereof. The paint comprises porous organism powder, silver, and a titanium dioxide antibacterial material, wherein silver and the titanium dioxide antibacterial material are adhered on the porous organism powder. The paint is composed of following components in percentage by weight: 12.0 to 25.0 wt.% of silver nano powder, 18.0 to 32.0 wt.% of nano titanium dioxide, 28.0 to 58.0 wt.% of ultrafine porous organism powder, and 0 to 30.0 wt.% of other metal nano powder.

The invention discloses antibacterial domestic ceramics, and relates to the technical field of ceramics. The antibacterial domestic ceramics contains zirconium phosphate/ sodium alginate modified attapulgite compound silver-carrying antibacterial agent of which the mass is 6-8%. The prepared antibacterial domestic ceramics not only has excellent thermal shock resistance and impact resistance strength, but also has a significant antibacterial effect and long germicidal duration time.

The invention provides a preparation method for ozone nanobubble mouthwash capable of maintaining ozone concentration for a long time at room temperature. By using a microbubble generator, ozone nanobubbles are made in an aqueous solution in which a bubble retention agent is dissolved; the ozone nanobubbles of which the number exceeds 129x108/100mL and the particle sizes are less than 500nm are generated, and the bubbles can stay in the aqueous solution stably for a long time. The ozone concentration of the ozone nanobubble mouthwash is within a range of 18.5-43mg/L, and after the ozone nanobubble mouthwash is hermetically stored in a dark place for three months at room temperature, the ozone concentration of the ozone nanobubble mouthwash can still maintain 60% or more of the ozone concentration when the ozone nanobubble mouthwash is prepared. The ozone nanobubble mouthwash can be applied to the field of preventing and treating oral diseases, eliminating ozostomia, whitening teeth andthe like.

The invention relates to a multipurpose anti-mildew agent. The multipurpose anti-mildew agent comprises, by mass, 20-40 parts of sorbic acid, 10-15 parts of boric acid, 10-15 parts of adsorbent, 15-20parts of sodium pentachlorophenate, 5-10 parts of ammonium polyphosphate, 15-18 parts of calcium propionate, 5-10 parts of gelatin, 10-15 parts of sodium chlorite, 2-3 parts of stearic acid and 60-80parts of water. The anti-mildew agent has the outstanding function of inhibiting breeding of mildew, fungi, bacteria, algae and other microorganisms in an organic medium, also has the advantages of being low in dosage, economical in cost, long in sterilization duration, wide in pH application range, convenient to use and safe to use, and can be widely used for sterilization and mildew preventionin various occasions.

The invention discloses a general mildew inhibitor which is composed of the following ingredients by the mass fraction: 4-6 parts of silver chloride, 3-5 parts of fatty alcohol polyoxyethylene ether, 7-9 parts of aluminum hydroxide, 2-4 parts of a propolis ethanol solution, 1-3 parts of an etherifying agent, 1-3 parts of an antibacterial agent, 8-12 parts of a pine needle extract, 1-3 parts of bromogeramine, and 1-2 parts of an adsorbent. The general mildew inhibitor has the advantages of low dosage, economic cost, long sterilization duration time, wide application range of pH, convenience in addition and safe use.

The invention discloses a preparation method of an energy-saving and environment-friendly special cleaning agent for medical appliances, belonging to the technical field of energy saving and environmental protection. The preparation method of the energy-saving and environment-friendly special cleaning agent for medical appliances comprises the following concrete steps: S1, stirring uniformly for later use; S2, adding a surfactant to the liquid charging stock stirred uniformly in the step S1; S3, marking the outer wall of a sorting box with low, middle and high three water lines by using a steel ruler and a marking pen; S4, marking the water content of the corresponding scale and the dosage of a multienzyme stock solution required to be added; and S5, adding the dosage of multienzyme stock solution marked on the corresponding label by using a measuring cup to complete preparation of the cleaning agent. The energy-saving and environment-friendly special cleaning agent has strong dirt-removing power, has good compatibility with the cleaned medical appliances and cleaning machines, is easy to rinse and reduces chemical residue.