141results about How to "Safe and non-toxic" patented technology

The invention relates to a bioactive glass ceramic material. The bioactive glass ceramic material belongs to a Na2O-CaO-SrO-SiO2-P2O5-F system, and comprises the following components in percentage by weight: 12-45% of SiO2, 10-35% of P2O5, 25-48% of CaO, 5-15% of Na2O, 3.5-4.9% of SrO, and 1.5-2.1% of F; and the main compositions of a crystalline phase in the bioactive glass ceramic material are hydroxyapatite, tricalcium phosphate and calcium sodium phosphate. The invention also provides a preparation method of the bioactive glass ceramic material, which comprises a powder calcinating method, a high-temperature melting method, and a coprecipitation synthesis method or a sol-gel method. The invention further provides the application of the bioactive glass ceramic material in oral care products. The bioactive glass ceramic material and a conventional oral care product carrier or a transfer agent are prepared into oral care products such as toothpastes, mouthwash, tooth powder, tooth gel, chewing gum, and the like, and the bioactive glass ceramic material can achieve an effect of effectively preventing dentine hypersensitivity and promoting the surface remineralization of teeth in the process of teeth cleaning.

The invention relates to a botanical natural disinfectant, which is characterized in that the disinfectant is prepared by mixing active components including patchouli essential oil and composite of various plant essential oils and solvent; wherein, the active components are prepared by mixing 0.5 to 30.0 percent of patchouli essential oil, cinnamon essential oil, perilla essential oil, eucalyptus essential oil, litsea cubeba essential oil and citronella essential oil and are used for preventing the crop disease caused by plant pathogenic bacteria. Compared with the original disinfectant, the botanical natural disinfectant has the advantages of good broad spectrum sterilization, safety to non-target organism and environment-friendly biodegradation.

An antibacterial hydrophilic polyurethane foam medical dressing is prepared by mixing a component A and a component B according to a mass ratio of 0.5-1 to 3-1 and foaming, wherein the component A isan isocyanate terminated hydrophilic prepolymer; the component B is a functional foaming mixture formed by mixing 1-10% of a surfactant, 0.9-10% of a foam stabilizer, 0.1-10% of a cationic polymeric antibacterial agent and 70-98% of water. The antibacterial hydrophilic polyurethane foam medical dressing has the characteristics of simple preparation technology and strong operability. The prepared antibacterial hydrophilic polyurethane foam medical dressing has a good antibacterial property, maintains the antibacterial property thereof for a long time, has a good hydrophilic liquid-absorbing property and is a novel functional medical wound dressing.

The invention relates to a high-temperature protective coating for a hot-rolling heat pretreatment process of nickel base alloy steel. The coating powder comprises the following components: 20%-40% of Al2O3, 10%-30% of SiO2, 10%-20% of MgO, 10%-20% of TiO2, 5%-15% of CuO, 5%-15% of Y2O3, 0%-1% of Na2O and 0%-1% of K2O, wherein Al2O3 and SiO2 are from one or two of Kyanite and aluminum ash, and TiO2 is from rutile ore. A binder in the coating is mixed from one or more selected from sodium silicate, potassium silicate and silica sol, and a dispersant is carboxymethyl cellulose. For usage, the powder and water are mixed and milled into a slurry according to the weight ratio of 2:1; the slurry is added with the binder accounting for 5-10 wt.% of the slurry, and the dispersant accounting 1-2 wt.% of the slurry; the mixture is well mixed and milled to size of 200-600 mesh to obtain the coating. The coating can be directly sprayed on billet below 800 DEG C, and can effectively solve the problem of hard descaling in heat treatment of nickel base alloy at 1200-1350 DEG C.

The invention discloses an electrogalvanizing method based on a choline chloride-xylitol deep eutectic solvent, belonging to the technical field of electroplating. According to the method, xylitol, choline chloride and distilled water are mixed at a constant temperature to obtain a transparent deep eutectic solvent; then zinc chloride is added into the deep eutectic solvent, and then the mixture is mixed at a constant temperature to obtain a zinciferous deep eutectic solvent which serves as electroplate liquid; a pure zinc plate serves as an anode; low-carbon steel serves as a cathode; and the anode and the cathode are dipped in the electroplate liquid for performing continuous current electroplating. The galvanization technology disclosed by the invention is safe and non-toxic, and is environment-friendly and economical; and the problem of environment pollution existing in borofluoride galvanization, halide galvanization and other processes is solved.

Provided are a high-quality, lithium-rich and manganese-based positive electrode material for a lithium ion battery and a method for synthesizing same. The method comprises the following steps: preparing a precursor by complexing an amino acid and a nickel-cobalt-manganese metal, mixing the above-mentioned precursor with a lithium salt, and subjecting same to ball-milling, drying and calcination to obtain a finished product. The amino acid is used as a complexing agent, benefiting the coprecipitation of the three transition metals, achieving the uniform distribution of each metal element in a material, improving the comprehensive electrochemical performance of a lithium-rich and manganese-based material, and improving the quality of the material. The lithium-rich and manganese-based material prepared by the method has characteristics such as a high tapped density, a high compaction density, and a better electrochemical performance.

The invention relates to seam beautifying glue, in particular to double-ingredient epoxy seam beautifying glue. An ingredient A is prepared from the following ingredients in percentage by weight: 60 to 90 percent of epoxy resin, 0 to 30 percent of plasticizers, 0 to 3 percent of anti-freezing agents, 0 to 15 percent of glitter powder, 1 to 10 percent of thixotropic agents, 0.01 to 1 percent of antifoaming agents and 0 to 20 percent of filling materials; an ingredient B is prepared from the following ingredients in percentage by mass: 65 to 95 percent of curing agents, 1 to 20 percent of thixotropic agents, 0 to 30 percent of plasticizers and 0 to 15 percent of glitter powder. The ingredient A and the ingreeinet B are respectively packaged after the preparation; the ingredient A and the ingredient B can be used after being uniformly mixed according to the weight ratio of 1:1. The construction operation is convenient; the advantages of safety, non-toxicity, wear resistance, waterproof performance, mildewproof performance, stain prevention, chemical medicine resistance, anti-cracking performance, fine crack resistance, yellowing resistance, rich color and the like are realized; the seam beautifying glue can be used as the seam beautifying glue by replacing the existing cement and can be used for performing color matching on ceramic tiles in different colors so as to achieve the decoration effect.

The invention discloses an indole-3-acetic acid molecularly imprinted magnetic cellulose microsphere and a preparation method and applications thereof, which relate to a nano magnetic cellulose molecularly imprinted microsphere and a preparation method and applications thereof. The invention is designed for solving the problem that an existing IAA (indole-3-acetic acid) detection method is complicated in step, time-consuming, quantitative in jamming and high in cost. The indole-3-acetic acid molecularly imprinted magnetic cellulose microsphere disclosed by the invention is prepared from an IAA, 4-VP, silanized beta-CD (beta-cyclodextrin), DMSO (dimethylsulfoxide), nano magnetic cellulose microsphere particles, a crosslinking agent, styrene, an initiator and water. The method comprises the following steps: 1, activating cellulose; 2, dissolving the cellulose; 3, preparing nano Fe3O4 magnetic liquid; 4, preparing nano magnetic cellulose microsphere particles; 5, silanizing beta-cyclodextrin; and 6, preparing the IAA molecularly imprinted magnetic cellulose microsphere. The indole-3-acetic acid molecularly imprinted magnetic cellulose microsphere disclosed by the invention, as an adsorbent, is used for quantitatively detecting the content of an indole-3-acetic acid in plant tissues.

The invention discloses benzoperylene imide derivatives, and a preparation method and application thereof. The structural formula of the benzoperylene imide derivatives is disclosed in the specification. The benzoperylene imide derivatives are prepared by carrying out multiple reactions on the initial raw material 3,4,9,10-perylene tetracarboxylic acid anhydride. The benzoperylene imide derivatives have strong blue light absorptivity, the molar absorption coefficient at the maximum absorption wavelength reaches 50000 mol<-1>cm<-1> above, the benzoperylene imide derivatives have no absorption in other visible light regions within the range of 500-800nm; and the spectrum properties of the derivatives can be utilized to prepare the blue light absorbing material which is applicable to the field of daily high-energy short-wave radiation prevention, such as mobile phone screen anti-blue-light coatings, eyeglass anti-blue-light coatings, paper anti-blue-light painting and the like.

The invention relates to a preparation method of an edible antibacterial membrane, and belongs to the field of green degradable packaging materials. More specifically, the invention relates to the preparation method of the edible antibacterial membrane. The edible antibacterial membrane is prepared by taking chitosan as a base material, glycerinum as a plasticizer, and beta-acidic hydrogenation derivative hexahydro beta-acid in lupulus barras as a bacteriostat, mixing and cross-linking the chitosan and the glycerinum, uniformly dispersing the hexahydro beta-acid to a film-forming solution, coating a film through a flow casting method or a spraying method, and drying at a specific temperature. The used raw materials of the edible antibacterial membrane obtained by the method are all from biologically degradable environment-friendly materials of natural animals and plants, the obtained antibacterial membrane can effectively inhibit common food spoilage bacteria, such as staphylococcus aureus and escherichia coli, and a packaging material with biological activity is provided to food industry.

The invention relates to a slow release natural pesticide, consisting of patchouli essential oil, an emulsifying agent and a slow release formulation; wherein, the emulsifying agent is non-ionic surfactant, the slow release formulation is alginate, cellulose or cyclodextrin. The preparation method comprises the following steps: 0.1 percent to 7.0 percent of patchouli essential oil is dispersed into the non-ionic surfactant, and the obtained mixture is mixed with the alginate, cyclodextrin or cellulose, then the mixture is dried and granulated; the preferable condition is that 0.25 percent to 4.00 percent of patchouli essential oil is dispersed into 4.0 percent to 10.0 percent of polyoxyethylene sorbitan monooleate, the obtained mixture is mixed and stirred with sodium alginate or Beta-cyclodextrin or carboxymethyl cellulose for 5 to 20min at the temperature of 10 to 100 DEG C and with the speed being 500 to 2,000r / min, then the mixture is dried and granulated. The slow release natural pesticide has the advantages of single object organism, safe non-target organism, high activity, no residue and easy degradation, and is applicable to long and effective prevention of crop diseases.

The invention relates to a tuberculosis gene vaccine assembled by a chitosan delivery system, which consists of chitosan and tuberculosis antigen encoding plasmids, wherein full-length genes of tubercle bacillus heat shock proteins HSP65 are inserted into the tuberculosis antigen encoding plasmids; and four T cell epitope genes EAST-6[189-228], Ag85A[369-405], CFP10[162-207] and Ag85B[420-459] from tubercle bacillus antigens are inserted into the HSP65 full-length genes. The invention also discloses application of the tuberculosis gene vaccine. By performing nasal drip of the gene vaccine on an immune mouse, the gene vaccine is proved to be capable of inducing response to special antibodies of a plurality of tuberculosis antigens, inducing killing response of locally strong tuberculosis special T cells of the whole body and lung mucous membranes, simultaneously inducing immunological response of Th1 which secretes high-level IFN gamma and have the effect which is obviously superior to the prior BCG vaccine, and is a superior vaccine for preventing and treating tuberculosis.

The invention discloses a toothpaste for children. The toothpaste for children comprises, by weight, 40-50% of a friction agent, 20-30% of a humectant, 2-5% of a foaming agent, 1-2% of a thickener, 0.01-0.1% of a sweetener, 1-2% of chlorophyll, 2-6% of a traditional Chinese medicinal composition, and the balance of water; and the traditional Chinese medicinal composition comprises, by weight, 10-30 parts of Chinese gall extract, 1-10 parts of tea polyphenols, 5-15 parts of Bletilla striata polysaccharides and 5-15 parts of propolis. The toothpaste for children can effectively prevent and treat oral ulcers, sore throat, periodontitis, gingivitis, caries prevention, bad breath and other oral and dental diseases, can promote the detoxification and swelling elimination repairing of oral injury tissues, is safe to use, is nontoxic, and has no irritating or carcinogenic property.

The invention discloses a rapid automatic extraction method and a reagent for paraffin section tissue nucleic acid. The reagent comprises a dewaxing agent, a protease solution, a lysate, a washing solution A, a washing solution B and an eluent. The method comprises the following steps: performing dewaxing rapidly by using the nontoxic dewaxing agent; after washing by ethanol, adding protease containing SDS and urea for cracking and digestion into liquid; transferring the liquid into an automatic magnetic bead extractor for extraction, performing cracking, magnetic bead adsorption, washing withthe washing solution A and the washing solution B and eluting with the eluent sequentially, and completing extraction of 32 or even 96 samples within a machine running time of about 30 minutes. According to the rapid automatic extraction method and the reagent for paraffin section tissue nucleic acid, after conventional first protease incubation is completed, the incubation dissolution system isheated to a high temperature and maintained for 3-5 minutes, a product is taken out and cooled to room temperature, protease is added to the reaction system, and tissue is completely dissolved and disappears after incubation for 10-30 minutes, obvious particles are absent, and the solution is clear.

The invention relates to a preparation method of an antibacterial and flame-retardant polyester fabric for luggage, comprising: adding a flame retardant to water, dispersing, adding water after adjusting the pH value, then adding an antibacterial finishing agent, stirring, and diluting with water to obtain an antibacterial and flame-retardant solution; Carry out two dipping and two rolling, then dry, bake, then wash with water, and dry, that is. The invention adopts high-efficiency flame-retardant finishing agent and antibacterial finishing agent to carry out antibacterial and flame-retardant multifunctional finishing on polyester luggage fabrics, and studies the antibacterial and flame-retardant effects of flame retardant, antibacterial finishing agent dosage, pre-baking temperature, baking temperature and time. influence to optimize the finishing process.

The invention relates to the technical field of protein removal for hericium erinaceus polysaccharide extracting solutions, in particular to a protein removal method for a hericium erinaceus polysaccharide extracting solution.The method comprises the steps that 1, a chitosan-acetic acid solution is prepared; 2, the hericium erinaceus polysaccharide extracting solution is mixed with the chitosan-acetic acid solution; 3, centrifugal treatment is carried out for the first time; 4, centrifugal treatment is carried out for the second time.The protein removal method for the hericium erinaceus polysaccharide extracting solution has the advantages of being safe, nontoxic, free of pollution, environmentally friendly, high in protein removal rate and low in polysaccharide losing rate, glycosidic bond breakage can be avoided, and then the polysaccharide structure and activity can be ensured.In addition, the protein removal method for the hericium erinaceus polysaccharide extracting solution has the advantages of being simple in treatment, easy to operate, low in production cost and applicable to large-scale production, and can be applied to production of relevant food health care products.

The invention discloses application of skin mucus extracts of andrias davidianus Blanchard to preparation of anti-breast cancer drugs. The application is characterized in that skin mucus is extracted through alkali liquor, and subjected to deproteinization and ion exchange and purified by gel chromatography to obtain vacuum dried extracts. In terms of mass fraction, the polysaccharide content is 38-41%, the protein content is 62-59%, polysaccharide proteins contain 6 monosaccharides of MaN, G1cUA, GaIUA, G1cN,G1c and Ga1, and the molecular weights of the proteins are 28KD. An inhibition test of human breast cancer cells MCF-7 is performed by adoption of an MTT (3-4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) method, and after the human breast cancer cells MCF-7 are treated for 48 hours by the skin mucus extracts of andrias davidianus Blanchard of which the concentrations are more than 0.5 mg / ml, the inhibition rate of the extracts is more than 90%. Injections prepared from the skin mucus extracts of the andrias davidianus Blanchard are used for treating breast cancers, without side effects.

The invention discloses polyurethane primer, which is prepared by physically stirring and mixing 45 to 50 percent of E-03 (containing 5 percent of solid), 10 to 15 percent of polyurethane resin, 0.2 to 0.5 percent of catalyst, 15 to 20 percent of rust resisting pigment, 10 to 15 percent of titanium dioxide pigment, 5 to 10 percent of superfine barium sulfate, 10 to 15 percent of mixed solvent and 5 to 10 percent of polyurethane resin. The primer is a coating meeting environmental protection requirements, has good corrosion-resistance and rust resisting effects, high medium resistance, high quality and bright application prospect and contributes to environmental protection.

The invention discloses a composite phase change material for microwave heating energy storage, as well as a preparation method and application thereof. The composite phase change material comprises a phase change material and graphene, wherein the mass ratio of the phase change material to the graphene is 1:(0.01-0.05); the phase change temperature of the composite phase change material is 54-62 DEG C; the heat of fusion is 200-220 J / g; the density is 0.9 g / cm<3>. According to the composite phase change material for the microwave heating energy storage, as well as the preparation method and application thereof, the design is simple; no harsh environment such as vacuum in the production process is needed; the cost can be reduced; a safer effect is realized; mass production on a large scale can be realized; microwaves are utilized to rapidly heat a vacuum cup and a large amount of heat energy is stored; the daily heat preservation demand for beverages is met; the heat preservation time is long; the cost is saved; no additional device is used.

The invention discloses a preparation method of injectable chitosan-oyster shell hydroxyapatite temperature-sensitive hydrogel. The preparation method comprises: preparing a chitosan acetate solutionand a sodium beta-glycerol phosphate solution, putting 9ml of the chitosan acetate solution into a beaker, putting the beaker into a constant temperature stirring water bath pot, carrying out stirringat a middle rate under the action of a magnetic force for 5min, simultaneously, slowly adding 2.5% of oyster shell nano-hydroxyapatite powder into the solution, carrying out stirring for 0.5h to obtain a hydrogel stock solution, treating the hydrogel stock solution and the sodium beta-glycerol phosphate solution in an ice bath for 15min, adding 1ml of the sodium beta-glycerol phosphate solution treated by the ice bath into the hydrogel stock solution drop by drop, and carrying out stirring in the constant temperature stirring water bath pot at 30 DEG C at a middle stirring rate under the action of a magnetic force for 10min to obtain the injectable chitosan-oyster shell hydroxyapatite temperature-sensitive hydrogel. The hydrogel has the characteristics of injectability, temperature sensitivity, safety and non-toxicity and can be used as a bone repair material.

The invention discloses a small anti-microbial dustproof cleaning-free fashionable mask which comprises a mask body, an outer decorative layer and hanging ropes. The mask body is made of multiple layers of nano-silver non-woven gauze and is in fit with the face of the human body in shape, the left side and the right side of the mask body are provided with the hanging ropes used for being fixed to ears of the human body, the outer surface of the mask body is coated with a layer of waterproof and dustproof breathable film, the outer surface of the waterproof and dustproof breathable film is coated with a layer of photocatalyst coating, the outer decorative layer is of a net structure, and the outer surface of the outer decorative layer is coated with fluorescence or reflective materials with different colors. The mask is fashionable, attractive, capable of avoiding face exposing, anti-microbial, dustproof and meanwhile capable of omitting troublesome of cleaning and disinfection.

The invention discloses a method for promoting a biofilm culturing effect by modifying the surface of polyurethane. According to the method, polyurethane is used as a template material in a layer-by-layer self-assembly process; iron and manganese ions cover the surface of the material through pretreatment of an iron-manganese salt solution, so that the surface of the material has certain surface positive charges; and plasma grafting modification is carried out to generate a large number of active free radicals on the surface of the material, covalent reaction with sodium alginate is carried out, finally, a layer-by-layer self-assembly process is realized under the driving of electrostatic force between a polyanion compound sodium alginate and a polycation compound chitosan, and therefore,a stable layered composite structure is formed on the surface of the material. By chemically modifying the surface of polyurethane, the obtained plasma modified iron and manganese ion-sodium alginate-chitosan layer-by-layer self-assembly material is good in biocompatibility, high in chemical stability, safe, non-toxic, simple to operate, low in cost and easy to obtain. By using the method, the microorganism immobilization efficiency can be effectively improved.

The invention relates to a natural fruit and vegetable anti-mildew and antibacterial combined fumigation granule. The combined fumigation granule comprises a fumigation composition and an adsorbing granule. The fumigation composition is prepared from the following components by weight percent, 15-65% of essential oil, 35-85% of vegetable oil and 0.1-1% of antioxidant. The adsorbing granule is madeof a porous material of natural origin, and the adsorbing granule is made from one or a combination of corn cob, activated carbon, akadama soil and vermiculite. Essential oil slow-release fumigationgranule raw materials are all derived from nature or plants itself, and are safe and non-toxic to use; excessive treatment of fruits and vegetables is avoided, and space, equipment and personnel inputrequired for treatment are saved; the use method is simple, only a certain quantity of granule products is weighed and placed in a net bag, the net bag is placed and / or hung in different positions ofa storage space, and finally continuously protecting fruits and vegetables from being contaminated by bacteria is realized, and the granule does not directly touch the surfaces of fruits and vegetables. The granule can be widely used in the fields of fruit and vegetable transportation and fruit and vegetable storage.

The invention relates to composite sponge and a preparation method of the composite sponge. The composite sponge is prepared from the following components in percentage by weight: 5%-15% of chitosan quaternary ammonium salt, 10%-23% of hyaluronic acid-RGD peptide, 25%-38% of gelatin, 15%-36% of PVA, and 5%-25% of glycerol. With the adoption of the technical scheme, the composite sponge and the preparation method have the beneficial technical effects that the antibacterial property of the novel chitosan sponge is improved, and the repairing for the surface of the wound is enhanced; the composite sponge containing the chitosan quaternary ammonium salt is simple in preparation method and low in cost, is safe and non-toxic, is obvious in antibacterial effect, can promote the cell growth, is beneficial for the repairing of the surface of the wound, is high in water absorption rate, and is suitable for industrial production.

The invention discloses microcapsule-filled sodium alginate-based hydrogel and a preparation method thereof. The method comprises the following steps: dissolving zein with an ethanol solution to obtain a dissolving solution, adding a hydrophobic functional substance and a surfactant into the zein solution, and preparing to acquire a zein-based microcapsule emulsion by adopting an anti-solvent method; meanwhile, adding sodium alginate into water, heating and stirring under a water bath condition to obtain a sodium alginate solution, adjusting the pH value of the system, sequentially adding thezein-based microcapsule emulsion and the CaCl2 solution, stirring, and aging for a period of time to obtain the microcapsule-filled sodium alginate-based hydrogel. The prepared composite material hasthe characteristics of hydrogel and microcapsules, has the advantages of being good in structural stability, capable of loading various hydrophobic functional substances, good in controlled release property and the like, and has wide application prospects in the fields of biological medicine, food processing and the like.

The invention discloses a vehicle-mounted perfume. The vehicle-mounted perfume is prepared from the following raw materials in parts by weight: 70-80 parts of ethanol, 15-20 parts of basil, 15-20 parts of shaddock peel, 15-20 parts of mixed petals, 10-15 parts of folium eucalypti, 3-6 parts of galaxolide, 1-3 parts of citrate, 1-2 parts of isopropyl myristate, 1-2 parts of ethyl maltol, 0.5-1 parts of dipotassium glycyrrhizinate and 0.1-0.5 part of sodium ethylene diamine tetracetate. The invention further provides a vehicle-mounted perfume box. The perfume box is of a cube and comprises a perfume box cover body and a perfume box body, wherein the perfume box cover body and the perfume box body are clamped and fixed; the perfume box body comprises a box body and a volatilization mechanismmounted in the box body; and the volatilization mechanism comprises a stirring device and a fan device. The vehicle-mounted perfume has the efficacies of refreshing and mind, promoting mentality, adjusting nerves and easing mental anxiety; and meanwhile, the volatilization speed of the perfume can be adjusted according to different selective requirements and environment temperatures, so that the vehicle-mounted perfume is convenient and safe to use.

The invention discloses a method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite. The method includes adopting non woven fabrics as the base fabric, and soaking the non woven fabric in NaCl water solution; drying and ironing the soaked base fabric, and calendering the surface; adopting attapulgite as raw material, smashing, soaking in water, extruding through opposite rollers, aging and adding anionic waterborne polyurethane for high speed pre-dispersion; adding foaming agent, foam stabilizing agent and aqueous colorant sequentially, mixing at high speed, and obtaining waterborne polyurethane synthesis leather slurry; soaking the pretreated base fabric in the waterborne polyurethane synthesis leather slurry, scraping the surface, drying, and obtaining the waterborne polyurethane base leather. The attapulgite filler is low in cost and easy to prepare, the synergistic reinforcement effect of fibrillar attapulgite and associated minerals is played completely, the mechanical property of the synthesis base leather is improved effectively, organic solvent is omitted during production, safety and environment protection can be achieved, the process is easy and simple to implement, and large-scale production is easy to implement.

The invention provides a mucosal adjuvant. The mucosal adjuvant is prepared by copolymerization crosslinking compounding of oligo-chitosan and lymphotactin encoding plasmids. The invention also discloses a preparation method and a use of the mucosal adjuvant. When the mucosal adjuvant and a gene vaccine composed of chitosan or oligo-chitosan are synchronously dropped into a nasal cavity for immunization, coxsackievirus specific serum antibody and systemic (spleen and lymph glands) Th1-type immune responses are induced and especially, intestinal mucosa partially-reinforced specific-secretion-type sIgA and IFNgama+Th1 responses are induced, and thus a gene vaccine used with the mucosal adjuvant is obviously superior to an exposed gene vaccine and effectively prevents coxsackievirus-caused myocarditis. The mucosal adjuvant can be used as a novel mucosal vaccination adjuvant.

The invention relates to a flower-shaped lactose loaded curcumin nano dry powder inhalant and a preparation method thereof, and belongs to the technical field of medical treatment. The flower-shaped lactose loaded curcumin nano dry powder inhalant consists of a drug carrier and curcumin solid lipid nanoparticles; the drug carrier is flower-shaped lactose; the flower-shaped lactose is prepared by performing a reaction on lactose monohydrate and citric acid; the flower-shaped lactose has a pore surface area of 30 plus and minus 7m2 / g, a pore volume of 0.7 plus and minus 0.3cm3 / g, a diameter peakvalue of 3.4, 5.6 and 12.4nm and an aerodynamic particle size of 2 to 4mum, and is adjustable in crude powder size; the curcumin solid lipid nanoparticles have an entrapment rate of 87.73%, a drug-loading rate of 7.72%, a particle size of 156.9 plus and minus 2.2nm, a polydispersity coefficient of 0.480 and an average Zeta potential of minus 24.8mV; and the dry powder inhalant is administrated toa respiratory system by a dry powder inhaler.

The invention discloses a furniture protection paint, which is prepared from the following materials: water-based acrylic emulsion, organosilicon modified polyurethane resin emulsion, modified bentonite, ammonium polyacrylate, sodium molybdate, carboxymethylcellulose sodium, sucrose ester, calcium magnesium powder, triethanolamine, isobutyric acid isobutyl ester, propylene glycol ether, propylene glycol alginate and deionized water. The paint prepared by the invention has good hardness, wear resistance and weatherability, strong protective effect on furniture, prolongs the service life by 20 to 30%, and has good gloss, enhances the beautiful appearance of the product, and also has the characteristics of safety and non-toxicity.