Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

61results about How to "Play a role in antibacterial" patented technology

Ice-temperature fresh-keeping method of perch

The invention discloses an ice-temperature fresh-keeping method of perches, which comprises the following steps: killing, cleaning, cutting into slices, soaking with a fresh-keeping agent, and storing at ice temperature; the fresh-keeping agent comprises licorice extract, illicium verum extract, fennel velamen extract, pomegranate bark extract, ginger extract, garlic extract, and water. The ice-temperature fresh-keeping method of perches of the invention is simple in operation for the whole fresh-keeping process, and low in cost. The licorice extract can inhibit the growth of microbe in fish dices, and effectively maintain the nutrition and flavor of the fish dices; the illicium verum and fennel velamen extract has bacteriostatic effect; the ginger and garlic extract has the effects of disinfection and sterilization; the pomegranate bark extract has the effect of protein solidification; when the method is used for fish dice fresh keeping, the storage life is prolonged by about 10 days when compared with the storage life of fish flesh refrigerated routinely; and the nutrition and flavor of the fish flesh are maintained effectively.
Owner:ZHEJIANG OCEAN UNIV

Morchella cultivation material and method for cultivation of Morchella

The invention discloses a Morchella cultivation material, which comprises the following components by weight: 25-35 parts of corn stalk, 25-35 parts of poplar sawdust, 20-30 parts of rape straws, 10-20 parts of peanut shell, 15-25 parts of sunflower seed meal, 8-15 parts of coconut shell, 3-6 parts of chestnut shell, 7-12 parts of Momordica grosvenori dregs, 5-8 parts of vinasse, 3-6 parts of Chinese Honeylocust Fruit shell, 4-7 parts of Gentiana apiata, 3-6 parts of dandelion and 2-5 parts of honeysuckle and the like. The method for cultivation comprises the following steps: (1) preparation of the Morchella cultivation material, (2) seed mixing, (3) seed sowing, (4) mycelial growth management and (5) fruitbody growth management. The waste raw materials are used, and scientifically and reasonably matched, nutrients are fully complementary, the Morchella cultivation material is environmentally-friendly and economic, herbal ingredients are added, the beneficial functions of Morchella are improved, the Morchella cultivation material has antibacterial and antiviral effect; the method for cultivation is simple and practical, low-cost and high-yield, and quality is good.
Owner:CHENGDU TIANLU FUNGI

Feed additive for resisting heat stress and promoting growth and preparation method thereof

The invention belongs to the technical field of feed additives, and relates to a feed additive for resisting heat stress and promoting growth and a preparation method thereof. The feed additive comprises the following raw materials in part by weight: 40 to 80 parts of gamma-aminobutyric acid, 5 to 10 parts of baclofen and 100 to 300 parts of vitamin C. The feed additive is used in hot summer, so the daily gain and feed-gain ratio can be improved, better comprehensive production benefit can be obtained, and the feed additive plays a role in inhibiting bacteria without influencing a biochemical indicator index in serum. Therefore, the feed additive can resist heat stress and promote growth, eliminates or reduces adverse influences of high temperature on animal heath, production performance and the like, and fulfills the aim of improving animal husbandry production benefit.
Owner:HENAN PUAI FEED GRP CO LTD +1

Preparation method of antibacterial polysaccharide hemostatic cotton based gauze

The invention discloses a preparation method of an antibacterial polysaccharide hemostatic cotton based gauze. The method comprises the following steps: firstly, preparing a quaternized polyethyleneimine and a hydroformylation polysaccharide cross-linking agent which have an anti-bacterial function; and then mixing and foaming the quaternized polyethyleneimine, the hydroformylation polysaccharide cross-linking agent and chitosan hydrochloride, uniformly coating the surface of a preprocessed gauze with foaming liquid, and carrying out freeze drying to obtain the antibacterial polysaccharide hemostatic cotton based gauze. After being compounded, polysaccharide hemostatic cotton and the preprocessed gauze are combined closely, do not fall off, have high intensity, and are suitable for compression hemostasis and binding at wounds. Moreover, compared with a common gauze, the antibacterial polysaccharide hemostatic cotton based gauze has the effects of inhibiting growth of microorganisms and inhibiting bacteria when stopping bleeding. In addition, a sponge coating the surface of the gauze uses safe and nontoxic polysaccharide as the cross-linking agent, so that the intensity and the blood stopping effect of the hemostatic cotton based gauze are further improved.
Owner:BEIJING UNIV OF CHEM TECH

Carbon fiber composite and application thereof

InactiveCN106215509ASolve the shortcomings of relatively low residual chlorine removal abilityIncrease contact areaMembrane filtersLoose filtering material filtersActivated carbonZinc alloys
The invention discloses a carbon fiber composite and application thereof. The carbon fiber composite is prepared from the following components in parts by weight: 30-40 parts of activated carbon, 30-40 parts of activated carbon fibers, 10-15 parts of synthetic fibers, 8-15 parts of calcium sulfite powder, 5-10 parts of zinc alloy powder, 0.5-2 parts of a binder and 90-100 parts of water. Besides, the invention also provides application of the carbon fiber composite. The carbon fiber composite has the advantages that calcium sulfite powder and copper-zinc alloy powder are dispersed into sparse holes of a carbon fiber material, the contact area of carbon fibers with filtering water is increased, treatment time that the filtering water passes through a carbon fiber filter element is prolonged, thus ensuring more sufficient and more thorough filtering, effectively solving the defect that residual chlorine removing capability of the carbon fiber material at high flow is low, and remarkably improving the residual chlorine removing capability.
Owner:GUANGZHOU LANQUAN HOME APPLIANCES CO LTD

Method for eliminating formaldehyde with biological protease

The invention relates to a method for treating of indoor formaldehyde pollution caused by decorating. According to a method for eliminating formaldehyde with the biological protease method, corn protein, protein activation enzymed, hydrolytic enzymed, oxidase, tea polyphenol, triethanolamine, surfactant and the like are mainly adopted. A formaldehyde eliminating agent for treating indoor decorating pollution is produced, and formaldehyde in decorating materials or formaldehyde in indoor air is eliminated, adsorbed and decomposed.
Owner:张园

Surface-modified wollastonite as well as preparation method and application thereof

The invention belongs to the technical field of wollastonite modification and relates to surface-modified wollastonite as well as a preparation method and application thereof. The surface-modified wollastonite comprises the following components in parts by weight: 20 to 30 parts of wollastonite; 1-5 parts of tungsten carbide; 7 to 12 parts of polyethylene glycol monostearate; 6-9 parts of lead-zinc sulfide ore flotation tailings; 3-7 parts of a flexibilizer; 4-8 parts of a lubricant; 5-7 parts of a demulsifier; 1-3 parts of olive oil; 4-10 parts of an artemisia argyi extract; 1-5 parts of sodium dodecyl sulfate; 0.6-3 parts of polyvinylpyrrolidone; 2-6 parts of 3-(methacryloyloxy) propyltrimethoxysilane; 10-19 parts of sulfamic acid; 46-62 parts of absolute ethyl alcohol; and 60-85 parts of water. The tensile strength of a product obtained by compounding the surface-modified wollastonite and ABS resin is greater than or equal to 75MPa, the impact strength of the product is greater thanor equal to 5.3 KJ / m <2>, and the percent of pass of the product is greater than or equal to 98%.
Owner:JIANGXI GUANGYUAN CHEM +2

Injectable medical wound dressing with antibacterial function

The invention discloses an injectable medical wound dressing with an antibacterial function, which belongs to the field of medical biological materials. The dressing provided by the invention comprises aminated hyaluronic acid, nitrosated acetylcysteine-grafted chitosan and benzaldehyde terminated polyethylene glycol, a wound surface can be covered by injection, especially an irregular wound surface of a deep part, the dressing has good self-healing performance, can prolong the service life of the wound dressing, and reduces secondary damage caused by replacement of the wound dressing. The dressing has good biocompatibility, can continuously release nitric oxide in a physiological environment so as to play a role in bacteriostasis and promote angiogenesis, and has the potential of promoting repair of refractory wounds such as diabetic foot ulcer.
Owner:无锡贝迪生物工程股份有限公司

Controlled-release fertilizer as well as preparation method and application thereof

The invention relates to controlled-release fertilizer as well as a preparation method and application thereof. The controlled-release fertilizer is prepared by taking straw powder as a raw material,carrying out sulfonation treatment under the existence of sulfite, a buffer agent, anthraquinone and copper salt, then carrying out alkalization treatment by sodium hydroxide and finally carrying outchloroacetic acid treatment. The invention also provides the preparation method and the application of the controlled-release fertilizer. In the controlled-release fertilizer provided by the invention, the molecular weight of lignin is small, the sulfonating rate is high, and the lignin and cellulose in plant straw are fully utilized; the controlled-release fertilizer can be applied by adding water or be applied as base fertilizer or topdressed fertilizer, a slow release effect is good, and release of nutrients can be effectively controlled.
Owner:KINGENTA ECOLOGICAL ENG GRP +2

Formaldehyde scavenging agent prepared from corn protein and preparation method thereof

The invention relates to a formaldehyde scavenging agent prepared from corn protein and a preparation method thereof and belongs to the technical field of formaldehyde scavenging agents. The preparation method comprises the following steps: with corn protein as a raw material, adding water the mass of which is 3-4 times that of the corn protein, and uniformly stirring; adding acid proteinase the mass of which is 2%-5% of that of the corn protein for performing enzymolysis, and adding an oxidizing agent the mass of which is 1%-3% of that of the corn protein for oxidizing after enzymolysis; adding a discoloring agent the mass of which is 1%-3% of that of the corn protein, and heating to 80-95 DEG C for discoloring; filtering at the temperature of 90-95 DEG C after discoloring, thereby obtaining filtrate, namely a corn protein solution; and cooling, crystallizing, and drying, thereby obtaining the formaldehyde scavenging agent. The formaldehyde scavenging agent prepared by the method is capable of effectively scavenging formaldehyde and is environmental-friendly, wide in application range, low in preparation cost and easy and convenient to use, and is free of secondary pollution.
Owner:张园

Lignin fertilizer and preparation method and application

The invention relates to a lignin fertilizer and a preparation method and application. The lignin fertilizer takes straw as a raw material, and straw together with sulfite, a buffering agent, anthraquinone and copper salt undergoes a one-step reaction to prepare a liquid fertilizer. The content of lignin is 1.5-3.5% according to a mass ratio, and the weight average molecular weight of lignin is 2000-5000. The invention further provides a preparation method and application of the lignin fertilizer. Lignin in plant straw is fully applied at a high value. The lignin is small in molecular weight,high in sulfonation rate, good in sulfonation and beneficial for crop absorption. The preparation step is simplified, and the lignin fertilizer is obtained through a one-step charging reaction.
Owner:KINGENTA ECOLOGICAL ENG GRP +1

Preparation method of sewage treatment flocculant

The invention belongs to the technical field of water treatment engineering, and particularly relates to a preparation method of a sewage treatment flocculant. The preparation method of the sewage treatment flocculant comprises the following steps: S1. extraction of wheat bran cellulose; S2. modification of wheat bran cellulose; S3. modification of konjac glucomannan; S4. preparation of a graftedcopolymer; and S5. ionization of the grafted copolymer. In the preparation method provided by the invention, solvent recovery is adopted in a preparation process, so that the pollution to the environment is reduced, and the modified cellulose is directly dissolved, so that the complexity of preparation is reduced. Meanwhile, the flocculant prepared by the preparation method provided by the invention is safe and environment-friendly, and has good degradability and flocculation effect, wherein the turbidity removal rate is as high as 99.7%, the COD removal rate is as high as 94.3%, and the 30-day degradation rate is as high as 68.2%.
Owner:北京荣士都生物科技有限公司

Fresh-keeping method for Chrysanthemum coronarium

The invention relates to the technical field of fresh-keeping of vegetables, and concretely relates to a fresh-keeping method for Chrysanthemum coronarium. The method comprises the following steps: (1) sterilization; (2) coating of an orange essential oil / capsicum essential oil / tulip essential oil complex agent; (3) high static pressure treatment; (4) coating of a porous membrane; (5) coating of salicylates; (6) preservation at a normal temperature. After treatment, respiration intensity of Chrysanthemum coronarium is obviously inhibited during storage period, decrease of mineral matters, VC,chlorophyll and other nutrients in the later period of storage are substantially delayed, and accumulation of ethene content during the storage period is substantially inhibited; weight loss due to internal respiration and surface transpiration in the storage period is reduced, peroxidase and other activities are reduced at the same time, aging process of Chrysanthemum coronarium is effectively reduced, original freshness and color of leaf vegetables are better kept, and eating flavor is better.
Owner:铜仁市万山区青蕴农业生态园有限公司

Moisturizing mask liquid and preparation method thereof

The invention provides a moisturizing mask liquid and a preparation method thereof, and belongs to the technical field of skin care products. The moisturizing mask liquid comprises: 0.5-1 part of a traditional Chinese medicine concentrate, 8-10 parts of an apple extract, 1-3 parts of egg white, 0.1-0.3 part of honey, and 1-3 parts of fresh milk; the traditional Chinese medicine concentrate is prepared from the following raw materials, by weight: 0.5-1 part of fresh ginger and 0.3-0.5 part of ginkgo leaf extract; and the apple extract is obtained by performing ultrasonic extraction on apple fermentation liquor. The mask liquid not only can improve the moisturizing degree of skin and improve the dry itching state of the skin, but also can balance skin grease and promote facial blood circulation, so that the health condition of the skin is improved from inside to outside. According to the preparation method of the mask liquid, in the high-speed mixing process, the raw materials can be fully crushed into fine particles, effective components can be rapidly dissolved and balanced, and the mask liquid is safe and reliable to use.
Owner:王智民

Preparation method of high-precision stainless steel product

The invention discloses a preparation method of a high-precision stainless steel product. The method sequentially includes the following steps that S1, stainless steel powder and tungsten carbide powder are mixed and then are subjected to ball-milling mixing by the aid of a ball mill, and mixed stainless steel powder is prepared; S2, acrylate monomers, zinc oxide, phosphoric acid, nitric acid, a silane coupling agent KH-570, polyethylene glycol and tributyl borate are evenly mixed and then are heated in a water bath, then vinyl fluoride, sodium fluoride, sodium nitrate, nickel sulfate, sodiumpersulfate, polypropylene resin, barium metaborate, tetrabromobisphenol A, nano calcium carbonate, methyl triethoxysilane and an antibacterial aid are added to the mixture, the mixture is evenly stirred, is subjected to heat preservation and then is cooled to the room temperature, hydrogenated polydecene is added to the mixture, and a binder is prepared; S3, the prepared mixed stainless steel powder and the prepared binder are mixed and then are subjected to injection molding and degreasing treatment in warm water, then high-temperature sintering is performed, and a finished product is prepared. The stainless steel prepared with the method has the excellent anti-corrosion, flame-retardant and anti-bacterial properties.
Owner:长沙如洋环保科技有限公司

Anticorrosion composition based on mild effect for cosmetics and preparation method of cosmetics

The invention discloses an anticorrosion composition based on a mild effect for cosmetics and a preparation method of the cosmetics. The anticorrosion composition contains the following components inpercentage by weight: 5%-10% of plant extract, 40%-50% of an anticorrosion enhancer and the balance of a pterostilbene derivative, wherein the plant extracts are an aloe extract, a polygonum cuspidatum extract, a grape skin extract and a peanut shell extract. The anticorrosion composition prepared by virtue of the preparation method is mild and non-irritant, does not contain any forbidden and restricted preservative component and formaldehyde release body, can completely support a ''preservative free'' compound system and is high in safety; and the prepared cosmetics has remarkable effects onthe growth suppression of bacteria and mold, has broad-spectrum antibacterial activity and strong anticorrosion property, is mild and can be used for a long time.
Owner:广州市腾宇化妆品有限公司

Manuka honey mouthwash and preparation method thereof

The invention belongs to the technical field of mouthwash, and particularly relates to a manuka honey mouthwash and a preparation method thereof. The mouthwash is prepared from a manuka honey extract, bacteriostatic natural hydrolat and flavored natural hydrolat. A preparation method of the manuka honey extractthe comprises the following steps: (1) standing the manuka honey at the temperature of 0-10 DEG C for 6-12 hours, filtering at the temperature of 0-10 DEG C, and taking filtrate; and (2) heating the filtrate to 70-95 DEG C, collecting emitted yellow-green gas, and dissolving the yellow-green gas in deionized water. The mouthwash provided by the invention is completely prepared from natural components, is high in safety, is harmless to health, and is beneficial to large-scale popularization and application.
Owner:SHENZHEN UPCERA DENTAL TECH

Cultivation method facilitating rapid growth of cotyledon ladismithen

The present invention discloses a cultivation method facilitating rapid growth of cotyledon ladismithen. The key steps comprise laying a layer of ceramisites inside a flowerpot, pushing the ceramisites at an upper part in the middle of the flowerpot aside so as to form a recess on the ceramisites in the middle of the flowerpot, laying a layer of gravels on the recess, laying a layer of active carbon granules on the ceramisite layer and the gravel layer, fixing a plant in the middle of the flowerpot while laying the plant fixing mediums, using an ultrasonic nebulizer to nebulizing a nutrient solution, guiding into mist of the nutrient solution from the bottom part of the flowerpot, and arranging a fan at the bottom of the flowerpot for air blowing or air draft. The nutrient solution is nebulized by the ultrasonic nebulizer and the fan is used for coordination, such that a root system can grow downards and absorb more nutrients for supply to leaves of the plant, water evaporation of the leaves of a new plant is accelerated by air flows, the root system can rapidly absorb water and nutrients, and rapid growth of the whole new plant is ultimately promoted.
Owner:安徽网萌科技发展股份有限公司

Squid tube body fresh-keeping agent

The invention discloses a squid tube body fresh-keeping agent. The squid tube body fresh-keeping agent is prepared from the following components in percentage by weight in a mixing way: 20 to 30 percent of sodium tripolyphosphate, 10 to 20 percent of sodium pyrophosphate, 10 to 20 percent of sodium hexametaphosphate, 25 to 35 percent of edible salt and 5 to 18 percent of sodium carbonate. Compared with the prior art, the squid tube body fresh-keeping agent disclosed by the invention has the advantages that before frozen fresh keeping, hydrophilic and hydrophobic properties of protein in a squid tube are firstly changed through chemical action, and the hydrophilic property of the protein is increased, so that effective fresh keeping, corrosion preventing and moisture holding functions are achieved, the quality of the squid tube is obviously improved, and meanwhile, due to the frozen fresh keeping, growth and propagation of bacteria in an aquatic product can be inhibited.
Owner:龙海市益合食品配料有限公司

Membrane silk moisturizing composition and preparation method and application thereof

The invention discloses a membrane silk moisturizing composition and a preparation method and application thereof. The membrane silk moisturizing composition is prepared from following components in percent by mass: 1%-20% of sodium salt humectant, 0.1%-0.5% of sodium hydrogen sulfite, 1%-5% of surfactant and the balance water. The membrane silk moisturizing composition has a good moisturizing effect, meanwhile, has a bacteriostatic effect, has the beneficial effects of being short in flushing time, high in production efficiency and low in production cost when applied to membrane silk production, can be recycled, and is environmentally friendly.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

Production technology of medical sodium alginate

The invention discloses a production technology of medical sodium alginate. The production technology comprises the following steps of: 1, dissolving food-grade sodium alginate by using purified water to obtain an aqueous solution of the sodium alginate, adding a decolorizing oxidant into the aqueous solution of the sodium alginate, and fully stirring; 2, adjusting the PH (Potential of Hydrogen) to acid, heating and stirring the obtained solution, and carrying out acid coagulation and then centrifugally washing with water; 3, dissolving the precipitate by purified water, adding industrial-grade sodium carbonate, fully and uniformly stirring, and adjusting the pH to neutral; and 4, adding isopropanol, and carrying out crystallization, centrifugalization, and drying to obtain the sodium alginate solid. The sodium alginate obtained by using the method is high in effective ingredient content and low in impurity content, has a controlled content of microorganism, and reaches medicine standard grade.
Owner:HUNAN ER KANG PHARMA

Preparation technology for preserved guava fruit

The invention discloses a preparation technology for a preserved guava fruit and belongs to the technical field of food processing. The preparation technology comprises the following steps: (1) screening raw materials; (2) cleaning and cutting; (3) protecting color and blanching; (4) performing vacuum sugar infusion; (5) drying; (6) performing vacuum packaging. According to the invention, a colorprotecting liquid is adopted for performing color protecting treatment on guava slices, so that the browning of guava slices caused by oxidization can be effectively relieved; especially, an aqueous solution prepared from ascorbic acid is capable of extremely guaranteeing excellent color and luster of the preserved fruit after processing, so that the sales volume of products can be increased; twice vacuum sugar infusion and normal pressure sugar infusion are adopted, so that the sugar content in pulp can be effectively increased; the preserved fruit prepared by adopting the preparation technology has higher sweetness and nice taste.
Owner:吴汉走

Preparation method of wall surface decoration plate

The invention discloses a preparation method of a wall surface decoration plate. The preparation method includes the following steps of (1) preparation of a wood base material, (2) preparation of a supporting base body, (3) preparation of a functional material, (4) compounding and (5) surface treatment. According to the method, lignin is used as an adhesive, and chemically-synthesized adhesives are prevented from being used, so that separation of harmful substances during use can be greatly reduced; meanwhile, in the preparation process of the wood base material, cellulose is partially decomposed, so that the wall surface decoration plate has the good oxidation resistance and moth damage resistance; a biomass liquid can play a role in bacteriostasis; and through addition of TiO2 powder, the finished wall surface decoration plate has the function of decomposing formaldehyde.
Owner:ANHUI BAUHINIA WALLPAPER

Litchi gas preservative as well as preparation method and use method thereof

The invention discloses a litchi gas preservative as well as a preparation method and a use method thereof. The litchi gas preservative comprises the following components: sodium peroxide, pullulan, lycopene, a morinda citrifolia extract, a garlic extract, an orange peel extract and nano chitosan. During preparation, the garlic extract and the orange peel extract are mixed, the pullulan, the lycopene and the morinda citrifolia fruit extract are sequentially added into another relatively closed container to be stirred and mixed, the two are mixed, finally, the nano chitosan and the sodium peroxide are added, the litchi gas preservative is sprayed on litchis, water is uniformly sprayed on the litchis, and the litchis are dried. The lychee fruit preservative can form a layer of compact protective film on the outer surface of lychee fruits, can play a role in inhibiting bacteria on the peels of the lychee fruits and inhibiting the respiration of the lychee fruits, has good water resistance, avoids water loss, can form a gas-phase protective layer around the outer layer of the protective film, and plays an effective role in inhibiting bacteria and preserving moisture; therefore, the purpose of preserving freshness is achieved.
Owner:海南金农实业有限公司

Anti-bacterial mildew-proof PVC

The invention discloses anti-bacterial mildew-proof PVC. The anti-bacterial mildew-proof PVC is prepared from the following components in parts by weight: 40-60 parts of a PVC base body, 3-5 parts ofmelamine cyanurate, 1-3 parts of glycidyl ether type epoxy resin, 1-3 parts of triethylene diamine, 1-5 parts of PSA fibers, 3-5 parts of nano copper oxide, 3-5 parts of nano zinc and 4-6 parts of isothiazolinone compound, wherein the melamine cyanurate is a flame retardant, the glycidyl ether type epoxy resin is a curing agent, and triethylene diamine is a bonding agent. The PVC prepared by the invention has the anti-bacterial mildew-proof function.
Owner:JIANGSU FENGTENG PLASTIC CO LTD

Single-dosage gatifloxacin eye drop and preparation method thereof

InactiveCN103505410AAvoid toxic side effects and potential risksImprove securityAntibacterial agentsOrganic active ingredientsSingle useEye drops solution
The invention relates to a single-dosage gatifloxacin eye drop and a preparation method thereof. The eye drop mainly contains gatifloxacin, a pH regulator, an osmotic pressure regulator and injection water, wherein the eye drop contains no bacteriostatic agents, has the pH value of 5.0-8.0, is independently packaged at single dosage and is disposable; the liquid medicine independently packaged at single dosage has the volume of 0.1-1.0mL, wherein the gatifloxacin has the mass content of 0.3-0.5% and the unit content of g / mL. The preparation method comprises the steps of carrying out sterile filtration, carrying out sterile operation and filling. In addition, the eye drop provided by the invention is independently packaged at single dosage and is disposable, so that the sterile performance of the eye drop is ensured, and the eye drop is safer as well as more reliable and convenient.
Owner:QILU PHARMA

An injectable medical wound dressing with antibacterial function

The invention discloses an injectable medical wound dressing with antibacterial function, which belongs to the field of medical biological materials. The dressing of the present invention comprises aminated hyaluronic acid, chitosan grafted with nitrosated acetylcysteine, and benzaldehyde-capped polyethylene glycol, which can cover wounds by injection, especially irregularities in deeper parts. wound, and has good self-healing properties, which can prolong its use time and reduce secondary injuries caused by changing wound dressings. The dressing has good biocompatibility and can continuously release nitric oxide in a physiological environment, thereby playing an antibacterial role, while promoting angiogenesis, and has the potential to promote the repair of difficult-to-heal wounds such as diabetic foot ulcers.
Owner:无锡贝迪生物工程股份有限公司

A preparation method of antibacterial polysaccharide hemostatic cotton-based gauze

The invention discloses a preparation method of an antibacterial polysaccharide hemostatic cotton based gauze. The method comprises the following steps: firstly, preparing a quaternized polyethyleneimine and a hydroformylation polysaccharide cross-linking agent which have an anti-bacterial function; and then mixing and foaming the quaternized polyethyleneimine, the hydroformylation polysaccharide cross-linking agent and chitosan hydrochloride, uniformly coating the surface of a preprocessed gauze with foaming liquid, and carrying out freeze drying to obtain the antibacterial polysaccharide hemostatic cotton based gauze. After being compounded, polysaccharide hemostatic cotton and the preprocessed gauze are combined closely, do not fall off, have high intensity, and are suitable for compression hemostasis and binding at wounds. Moreover, compared with a common gauze, the antibacterial polysaccharide hemostatic cotton based gauze has the effects of inhibiting growth of microorganisms and inhibiting bacteria when stopping bleeding. In addition, a sponge coating the surface of the gauze uses safe and nontoxic polysaccharide as the cross-linking agent, so that the intensity and the blood stopping effect of the hemostatic cotton based gauze are further improved.
Owner:BEIJING UNIV OF CHEM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products