7927 results about "Antibacterial effect" patented technology

It has been desired to develop a highly preservative and antibacterial cosmetic composition that can easily be applied to both emulsion and non-emulsion type cosmetics. It has also been desired to develop a method of improving a preservative and / or antibacterial effect(s) of a cosmetic composition comprising polyorganosiloxane-containing epsilon-polylysine and thereby reducing the amount of antibacterial preservative agent to be used. There is provided a cosmetic composition comprising one or a combination of two or more of polyorganosiloxane-containing epsilon-polylysine compounds obtained by reacting epsilon-polylysine with polyorganosiloxane or a physiologically acceptable salt thereof, and polyhydric alcohol.

The present invention relates to Ag and RE doped nanometer zinc oxide and its preparation process and application in photocatalysis to degrade organic matter and killing bacteria. Ag, RE metals La, Ce, Pr, Nd, Sm, etc. are doped into nanometer zinc oxide to raise its photocatalytic activity in degrading harmful chemical matter and resisting bacteria. Under lighting, the doped nanometer zinc oxide has higher photocatalytic activity and higher antibacterial capacity; and in case of no lighting, it has relatively high antibacterial effect owing to the antibacterial effect one Ag, Zn, RE and other antibacterial ions. The preparation process may be an organic matter complexing process or a sprying pyrolysis process. The doped nanometer zinc oxide may be used through mixing with other material, or used as additive added into plastic, ceramic, fiber, timber, rubber, glass, cement, metal and other material to form various kinds of photocatalytic antibacterial material and product.

The invention relates to an antibacterial composite nanometer fiber high-efficiency air filtering material and a preparation method thereof, and belongs to the field of preparation of air filtering materials. The antibacterial composite nanometer fiber high-efficiency air filtering material sequentially comprises a non-woven fabric support layer, a filter layer and a nanometer fiber filter layer, wherein the filter layer is obtained by blending antibacterial fibers and micrometer fibers. When harmful air which contains bacteria and viruses passes through the antibacterial composite nanometer fiber high-efficiency air filtering material, the antibacterial composite nanometer fiber high-efficiency air filtering material disclosed by the invention can achieve antiviral and antibacterial effects and has high filter efficiency effect on tiny particles contained in air; the antibacterial composite nanometer fiber high-efficiency air filtering material disclosed by the invention has the advantages of antibacterial effect, and high filter efficiency and relatively lower resistance on the tiny particles contained in air, can achieve the filter efficiency on oily DOP (Dioctyl-Phthalate) particles with the grain diameters of 0.3 micrometers at 99.99% and achieve the filter efficiency on sodium chloride particles of 0.07-0.2 micrometers more than 99.99%, has the advantages of light weight, softness, and the like in practical application and can be used for preparing antibacterial protective articles, such as a mask, a protective mask and application protective clothes.

The invention discloses an antibacterial polyethylene film and a method for preparing the same. The film consists of an outer layer, a middle layer and an inner layer; the outer layer consists of low-density polyethylene and linear low-density polyethylene; the middle layer consists of low-density polyethylene and linear low-density polyethylene; and the inner layer comprises low-density polyethylene, linear low-density polyethylene, metallocene linear low-density polyethylene, a slipping agent and an antibacterial agent. Compared with the prior art, the antibacterial polyethylene film has the characteristics of broad-spectrum sterilization, lasting antibacterial effect, good safety, no toxicity, no side effects and uneasy discoloration, thereby really achieving the protective function on packaged foods.

The invention discloses a bacillus belleus GT11 and application thereof. The bacillus belleus CT11 is collected at China General Microbiological Culture Collection Center on December 13th, 2016; the collection number is CGMCC No.13446; the bacillus belleus CT11 can be prepared into water agent, wettable powder or coating material and can be used for preventing and controlling the root rot diseases of pseudo-ginseng and plukenetia volubilis and Chinese cabbage clubroot. The invention provides an efficient, nontoxic, safe, non-residual and conveniently used biological agent for preventing and controlling the diseases such as root rot and clubroot; the effective active ingredient is bacillus belleus CT11 strain; the strain can generate the secondary metabolite antimicrobial active matter, is capable of degrading the cell wall of pathogenic bacteria and has an excellent growth-promoting effect for the crops, such as, plukenetia volubilis, pseudo-ginseng and Chinese cabbage; besides, the bacillus belleus CT11 has a better antibacterial effect for pseudo-ginseng phytophthora sojae, pseudo-ginseng fusarium solani, plukenetia volubilis gray mold, paddy bacterial mycosphaerella, and the like.

The invention relates to a method for preparing health-benefiting fermented soybean meal enriched in small peptides, gamma-aminobutyric acid (GABA), reducing sugar, lactobacillus plantarum and antimicrobial peptide. By utilizing strains of aspergillus oryzae, saccharomyces cerevisiae, bacillus subtilis and lactobacillus plantarum, the small peptides, free amino acids, reducing sugar, GABA and high viable count content in the lactobacillus plantarum in the health-benefiting fermented soybean meal are obtained through the two-stage solid state fermentation method, the small peptides account for 8.01-18 percent, the free amino acids has the content of 80-300mg / g, the reducing sugar reaches 20-80mg / g, the GABA reaches 0.317-0.5mg / g, the viable count content in the lactobacillus plantarum is 2-6.5*1010cfu / g, the antibacterial titer of antimicrobial peptides is 2.0*103-7.0*104 IU / g, and the yield of the health-benefiting fermented soybean meal is 82.03-90 percent. According to the process, the nutrient effect of the soybean meal can be improved, the prepared fermented soybean meal has the antibacterial effect, partial antibiotics can be replaced, the fermented soybean meal is conveniently preserved and saved, the process is simple and feasible, and the fermented soybean meal is green and environment-friendly and has application significance and wide prospect in the feed industry and breeding industry.

The invention provides an antibacterial non-woven fabric and a preparation method thereof. Both the upper surface and the lower surface of the antibacterial non-woven fabric are provided with antibacterial film-forming agent layers; each antibacterial film-forming agent layer is obtained by thermally curing a polymer film-forming agent; the polymer film-forming agent has the viscosity of 50-20,000cp and the solid content of 5-55 percent; the film-forming agent has the fluid rate of 2-20 percent; and the polymer film-forming agent is prepared from the following raw materials in percentage by mass: 80-94 percent of a high polymer emulsion, 1-10 percent of a bacteriostatic agent and 5-10 percent of an addition agent. The polymer film-forming agent is selectively roller-coated on the non-woven fabric after the non-woven fabric is formed, so that an antibacterial effect of the non-woven fabric is improved, the antibacterial time is prolonged, and the really long-term antibacterial purpose is achieved.

The invention discloses a production process of a high-quality ecological antibacterial health-care sock. The production process of the high-quality ecological antibacterial health-care sock comprises the following steps of yarn manufacturing, sock weaving, seam allowance processing, reinforcing, setting, pre-drying, water bathing, drying and package detection. The production process of the high-quality ecological antibacterial health-care sock adopts the method that natural cotton fibers, aloe fibers and modal fibers are interlaced and makes full use of the good antibacterial effect of the aloe fibers, and the bottom of the sock adopts a flat structure, so that the fabric can meet the requirements for high air permeability and comfort. The aloe fibers are used for replacing traditional common viscose, and aloe isocitric acid calcium and other matter have the functions of improving the constitution, strengthening the heart, promoting blood circulation, softening hardened arteries, lowering the cholesterol content and expanding the blood capillaries, and have a certain inhibition effect on escherichia coli and staphylococcus aureus. Compared with the prior art, the high-quality ecological antibacterial health-care sock has good health-care performance and antibacterial performance.

The invention discloses a washing-free antibacterial hand sanitizer and a preparation method thereof. Raw materials of the washing-free antibacterial hand sanitizer calculated at 100ml include 1-10g of chlorhexidine salt, 5-1,000ug of silver nitrate, 30-90ml of alcohol, 2-50g of skin care agent, 0.5-3g of tackifier, 0.5-3g of surfactant, 0.5-5g of p+H regulator and 15-50ml of deionized water. In the preparation method, the skin care agent and the chlorhexidine salt are added to the alcohol and dissolved under the temperature of 30-70 DEG C to form alcoholic solution; the tackifier, the surfactant and the silver nitrate are added to the deionized water to form aqueous solution; finally, the aqueous solution and the pH regulator are added to the alcoholic solution to prepare the washing-free antibacterial hand sanitizer. The washing-free antibacterial hand sanitizer contains various antibacterial components, has very strong broad-spectrum antibacterial and bactericidal effects on various bacteria and fungi, and has long-acting antibacterial effect.

The invention discloses an isatis root oil microcapsule and an isatis root oil microcapsule functional fabric finishing agent. The isatis root oil microcapsule of the invention has a particle size of 5-10 microns, and a mass ratio of a core material and a wall material of 1:0.5-1.75; the isatis root oil microcapsule functional fabric finishing agent comprises 40-65% of isatis root oil microcapsule emulsion, 5-15% of crease resistant cross-linking agents, 1.5-5% of catalysts, 0.2-2% of penetrating agents, 5-8% of softeners, and 10-35.75% of water. The isatis root oil microcapsule of the invention can cover adverse smell of isatis root oil, slowly release isatis root oil, maintain the stability of isatis root oil, and prolong its efficacy. The isatis root oil microcapsule functional fabric finishing agent of the invention provides finished fabrics with a plurality of functional effects such as durable and antibacterial effect, antiviral effect, and crease resistance, and provides fabrics with good softness and permeability.

The invention discloses a titanium alloy containing an antibacterial coating as well as a preparation method and application thereof. The titanium alloy deposited with nano-silver antibacterial coating on the surface is prepared by the following steps: preprocessing and sterilizing the surface of titanium alloy; then soaking the titanium alloy in a dopamine hydrochloride solution with mass-volume concentration of 1-10mg / mL for 12-36h to obtain titanium alloy deposited with a polydopamine thin film layer on the surface; and finally soaking the titanium alloy in a silver nitrate solution which is 5-100mmol / L in concentration for 12-36h. According to the titanium alloy disclosed by the invention, the titanium alloy is connected to silver nanoparticles by virtue of adhesion from self-polymerization of dopamine and adsorbed silver ions are reduced into nano-silver in situ through weak reducibility of the dopamine. Because of broad-spectrum antibacterial capacity of the nano-silver, an excellent antibacterial effect can be achieved with relatively low effect concentration. The invention provides new thinking for antibacterial modification of the titanium alloy, and can effectively promote application of a titanium alloy implant material in the fields of bone tissue repair and regeneration.

An antibacterial 3,5-substituted oxazolidione derivative and its salt with strong activity to resist gram-position bacteria, their preparing process, their application in preparing antibacterial agents and the antibacterial medicine containing them as active components are disclosed.

The present invention has an object to provide an external dermatological formulation having satisfactory blood flow-promoting effect, antiinflammatory effect, antibacterial effect, moisturizing effect, whitening effect, UV-absorbing effect, UV-scattering effect, antioxidant effect, hair growing effect, hair nourishing effect, emusifying effect, astringent effect, wrinkle-reducing effect, cell-activating effect and / or transdermal absorption-promoting effect with a satisfactory safety and skin feeling; The object is solved by providing an external dermatological formulation comprising a saccharide derivative of α,α-trehalose and one or more members selected from substances having any one of blood flow-promoting effect, antiinflammatory effect, antibacterial effect, moisturizing effect, whitening effect, UV-absorbing effect, UV-scattering effect, antioxidant effect, hair growing efect, hair nourishing effect, emulsifying effect, astringent effect, wrinkle-reducing effect, cell-activating effect and transdermal absorption-promoting effect.

The invention discloses finishing liquor for realizing antibiosis of fabrics and a preparation method of the finishing liquor. The finishing liquor consists of raw materials including, by weight, 0.1 part of chitosan, 0.5 part of DC-5700, 0.2 part of nanometer silver antibacterial agent, 1 part of 3-chloropropylmethyldimethoxysilanes, 0.3 part of 2, 4, 4'-trichlorine-2 hydroxy-diphenyl ether, 3 parts of PEG (polyethylene glycol)-40 hydrogentated castor oil, 0.3 part of water-soluble wool oil, 10 parts of ethanol and 84.6 parts of RO (reverse osmosis) water. Compared with other bacteriacide, the antibacterial agent has high safety and a good long-term sterilizing effect, and does not affect processability of materials and other application performances. The finishing liquor for the fabrics not only has an antibacterial effect, but also has a special effect of being capable of guaranteeing that finished fabrics can keep original softness. In addition, the finishing liquor for the fabrics is temperate, is not irritative, does not contain formaldehyde, is environment-friendly, and does not have any side effects when used for a long time.

The invention provides an antibacterial thermoplastic plastic composition comprising blended materials of thermoplastic plastic and a load-type antibacterial agent. Calculated with the weight of the thermoplastic plastic as 100 parts, the composition comprises 0.1-30 parts of the load-type antibacterial agent. The load-type antibacterial agent is an antibacterial agent loaded by powder rubber. The load-type antibacterial agent comprises an organic antibacterial agent and power rubber. The antibacterial agent is loaded on the powder rubber. An organic antibacterial agent which is in a liquid state in normal temperature or an organic antibacterial agent solution is well mixed with the powder rubber, and the mixture is subjected to standing, until the powder rubber absorbs the organic antibacterial agent which is in a liquid state in normal temperature or the organic antibacterial agent solution, such that the load-type antibacterial agent is obtained. With the method, the obtained antibacterial thermoplastic plastic composition has the advantages such as good antibacterial effect, good color, low cost, high safety, and the like. The preparation process is simple and is easy to operate. The method is suitable for industrialized application.

The invention relates to a hyper branched polyamide amine and metal nanometer compound and the preparation method and the application, belonging to the technical field of nanotechnology which is characterized in that: the compound comprises a polymer and metal nanometer particles, the polymer is the hyper branched polyamide amine made of blocking modification the hyper branched polyamide amine of the vinyl-terminated through different small organic molecules with amine, the content of the polymer is 89wt percent to 98wt percent; the metal nanometer particles are golden or silver nanometer particles, the content of the metal nanometer particles is 2wt percent to 11wt percent. During the preparation course, no reducing agent or ultraviolet irradiation is required, the precursor metal compounds are directly added into the hyper branched polyamide amine solution, and the metal nanometer particles with perfect water dispersion is generated only through one-step reaction under ambient temperature, the average particle size of which is one to eight nm, and the size is controllable. The inhibition zone method and the optical density method tested show that: the hyper branched polyamide amine and the metal nanometer particle compound have perfect antibacterial effects to a plurality of bacteria and fungus.

A process for preparing the antibacterial activated carbon fibres containing nano silver particles includes preparing the activated carbon fibres by using phosphoric acid as activator, and dipping for adsorbing the silver particles by said fibres. It can kill all the Escherichia coli and staphylococlus aureus in water. Its advantages are less consumption, and high, fost and durable antibacterial effect.

The invention relates to a feed for meat ducks, and the feed comprises corn flour, soybean flour, wheat bran, fish meal, yeast powder, shell powder, pulverized lime, iodized salt, beef tallow, a premix of vitamins, a premix of minerals and a traditional Chinese medicine additive. The traditional Chinese medicine additive comprises dwarf lilyturf tuber, spreading hedyotis herb, glossy privet fruit, sessile stemona root, common selfheal fruit-spike, heartleaf houttuynia herb, baical skullcap root, indigowoad leaf, largehead atractylodes rhizome, pilose Asiabell root, membranous milkvetch root, Chinese angelica, maifanite, Chinese magnoliavine fruit, south dodder seed, barbed skullcap herb, lotus leaf, rhizoma corydalis and fructus forsythiae. The feed additive disclosed by the invention combines the dual actions of being medicinal and nutritive, and can be used for preventing diseases, improving the production performance, and further regulating the immune functions of organisms; and the feed additive has a non-specific antibacterial effect, and can be used for fundamentally protecting and coordinating the overall health of livestock and poultry, preventing the diseases, fully playing and improving the potential ability of the organisms, improving the digestion rate and utilization rate of nutrient substances, enhancing the metabolism of the livestock and the poultry, promoting blood circulation and increasing the growth rate.

The invention discloses an antibacterial plastic used for household appliances and being good in antibacterial effect and a preparation method thereof, and belongs to the technical field of macromolecular engineering plastics. The antibacterial plastic used for the household appliances is made by mainly blending 70-95 parts of resin, 2-10 parts of metal ion and photocatalyst mixed type inorganic antibacterial agents, 5-30 parts of flexibilizers, 0.1-1.5 parts of coupling agents and 0.05-0.4 part of antioxidants. The preparation method of the antibacterial plastic comprises evenly mixing various raw materials, and obtaining the antibacterial plastic used for the household appliances by blending at a temperature range of 170-240 DEG C. The antibacterial performance of the antibacterial plastic can meet the national newly-issued standard GB21551.2-2010 and can be widely applied to refrigerators, washing machines, air conditioners, televisions, cell phones and computer products.

The invention relates to an antibacterial finishing method for textile containing cellulose. The method uses natural polymer chitosan and sodium alginate as wall materials; traditional Chinese medicine extracts are used as a core material and are subjected to encapsulation by a micro capsule technology; then an afterfinishing method is employed to treat the microcapsule to the partially carboxymethylated textile containing cellulose, so as to endow the textile with antibacterial performance and good wash fastness through electrostatic attraction between the carboxyl on cellulose fiber and chitosan, as well as the crosslinking effect of the cross-linking agent. The raw materials employed by the invention are green, environment-friendly, safe and high-efficiency, and the obtained textile has good antibacterial effect on common staphylococcus aureus, Eschierichia coli and bacillus subtilis.

The invention relates to a low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and a preparation method thereof, and belongs to the field of polymer modification and processing, which includes the following raw materials: by weight, 40-60% of a nylon resin; 5-10% of a microcapsule red phosphor masterbatch; 3%-8%of a compatibilizer; 5-40% of padding; 1-5% of modified activated zeolite powder; 0.5-2% of nanometer magnesium oxide; and 0-5%of other auxiliaries. The modified activated zeolite powder is activated by a natural zeolite powder, and then modified by a cationic surface active agent. According to the low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and the preparation method thereof, the low odor, anti-static electricity, and high stability red phosphorus flame retardant thermoplastic composition is prepared by adding the modified activated zeolite powder on the basic formula of the red phosphorus flame retardant thermoplastic composition and simultaneously has a certain antibacterial effect; the thermoplastic composition is capable of being prepared into various sample pieces through extrusion molding, and suitable for coal mine underground equipments, textile equipments and medical health instruments.

The invention discloses a method for preparing biomedical titanium and titanium alloy surface antibacterial coatings. The method comprises steps of firstly, processing the surface of a biomedical titanium or titanium alloy sample to be processed, immersing the biomedical titanium or titanium alloy sample in a glycol aqueous solution containing soluble fluoride and performing an anode oxidation treatment; secondly, immersing the biomedical titanium or titanium alloy sample after being subjected to the anode oxidation treatment in a silver nitrate solution, taking out the biomedical titanium or titanium alloy sample, using ultraviolet light radiation to process the biomedical titanium or titanium alloy sample and obtaining the silver-carrying biomedical titanium or titanium alloy sample; and performing a micro-arc oxidation treatment for the silver-carrying biomedical titanium or titanium alloy sample, performing ultrasonic cleaning and vacuum drying and obtaining the antibacterial coatings. The nano precoating layer preparation, the silver-carrying treatment and a micro-arc oxidation technology are combined, then a large amount of silver can be fixed on the biomedical titanium and titanium alloy sample surfaces and can be released slowly for a long time, the antibacterial performance of titanium and titanium alloys is greatly improved, the antibacterial effect can be kept for a long time, and the bacterial infection caused by the fact that a titanium and titanium alloy apparatus is embedded in a human body is greatly reduced or avoided.

The invention provides a CP7 strain that can produce new antibacterial polypeptides that have strong antibacterial effect to gram-positive bacteria and are small peptides with 23 amino acid residues by the determination and whose amino acid sequence is: LLLAQPTAAVRGRCQVQRYLLA A. The invention also provides the application of the new antibacterial polypeptide in the preparation of the anti gram-positive bacteria drug.

The invention relates to an antibacterial mildewproof polylactic acid composition and a preparation method thereof. The composition comprises the following mixed components: polylactic acid, an antibacterial mildewproof agent, and a dispersant; wherein on a basis of 100 parts by weight of polylactic acid, the composition comprises 0.3-2 parts by weight of antibacterial mildewproof agents, and 0-0.5 parts by weight of dispersants; the antibacterial mildewproof agent is a polyguanidine pyrithione antibacterial mildewproof agent which is obtained by mixing an aqueous solution of water-soluble polyguanidine inorganic acid salts or organic acid salts and an aqueous solution of sodium pyrithione; the molar ratio of the water-soluble polyguanidine inorganic acid salts or organic acid salts and sodium pyrithione is 1:(0.1-5). The polylactic acid composition of the invention has good antibacterial and mildewproof effect. The antibacterial effect on staphylococcus aureus and escherichia coli is up to 99.9%; the mildewproof grade for mold such as aspergillus niger, aspergillus terreus, paecilomyces varioti bainier, and the like reaches 0 grade; the composition has good water resistant stability, and has wide application prospects.

The invention discloses an air freshener and a preparation method and application thereof. The active ingredients of the air freshener comprise thyme essential oil, mint essential oil and tea tree oil. Bacteriostatic experiments prove the bacteriostatic effect of the air freshener, and the experimental results prove that the air freshener has the advantages of safety, high efficiency, no toxin, no irritation and environmental protection, has strong bacteriostatic and antibacterial effects, and can purify the air and improve the air quality. The air freshener can effectively suppress the activities of colibacillus and staphylococcus aureus in the air, has broad-spectrum antimicrobial activity, can play roles in completely improving the air quality and keeping indoor air fresh and clean, and has bacteriostatic activity similar to the streptomyces avermitilis. The air freshener is prepared from aromatic plant essential oil, such as lavender essential oil and rosemary essential oil instead of chemically synthesized essence, is non-toxic and harmless to human body, and has no irritating harm, sensitivity or other side effects.

The invention discloses a biocontrol strain for an antagonistic phytopathogen and use thereof. The strain is streptomyces griseoruber Y1B (Streptomyces griseoruber Y1B) CCTCC No:M2013358. The streptomyces griseoruber Y1B is fermented by adopting a GYM culture medium; a fermentation liquor is collected, extracted, and distilled in vacuum, so as to prepare a fermentation crude product. The fermentation crude product has a good antibacterial effect on rhizoctonia solani and watermelon fusarium oxysporum.

A compound anti-beta-lactamase antibiotic is prepared from cefuroxime or its salt, sulbactam or its salt, and tazobactan or its salt. Its advantages are broad spectrum and high antibacterial effect.

A nitrogen doped nano-TiO2 modified photocatalytic paint with low content of volatile VOC, and high ultraviolet shielding-absorbing and antibacterial effect is prepared from silicic acrylate emulsion, nitrogen doped nano-TiO2, ordinary nano-TiO2, titanium oxide powder, kaolin, heavy and light calcium carbonate, wallastonite powder, assistant, water, ammonia water, defoaming agent and antimildew agent through proportional mixing, stirring and filtering.

The invention provides a nano-antibacterial gravure aqueous printing ink, comprising 65-70wt% of water-soluble resin, 15-20wt% of deionized water, 5-10wt% of aqueous organic pigment, 3-6wt% of ethanol, 1-2wt% of antiseptic, 1-2wt% of dispersant, 0-1wt% of slow drying agent, 0.5-1wt% of aqueous levelling agent, 0.5-1wt% of aqueous wax emulsion, 0.5-1wt% of organic amine, and 0.5-1wt% of antifoaming agent. The invention further provides a preparation method of the nano-antibacterial gravure aqueous printing ink. According to the invention, the problems of bad antibacterial effect, impact on people' health, environmentally unfriendly property, etc. of gravure aqueous printing inks in the prior art are overcome, and the nano-antibacterial gravure aqueous printing ink disclosed herein satisfies the idea of green circular economy, has high-efficiency antibacterial property, can effectively cut off the propagation approach of pathogens and guarantee people' health, and has good market prospect, etc.