1209 results about "Antibacterial effect" patented technology

The invention provides antibacterial ceramic and a preparation method thereof. The antibacterial ceramic comprises a blank body and a glaze layer, the blank body is prepared from the following raw materials: kaolin, diatomite, montmorillonite, soapstone, bamboo charcoal powder, a first antibacterial agent, a fluxing agent, a pore forming agent, an adhesive and a reinforcing agent; the glaze layer comprises the following raw materials: kaolin, diatomite, dolomite, tourmaline, sodium oxide, a second antibacterial agent, a binder, a stabilizer and a dispersant. The method comprises the following steps: firing a molded green body by adopting stepped segmented heating, and carrying out glaze firing by adopting stepped segmented heating after glazing, thereby obtaining the antibacterial ceramic. According to the antibacterial ceramic disclosed by the invention, the antibacterial agent is added into the green body and the glaze layer, so that the influence on the antibacterial property of the green body in the firing process of the green body is avoided, the antibacterial durability is further improved, the antibacterial effect is enhanced, and the antibacterial rate on pathogenic bacteria such as escherichia coli and staphylococcus aureus reaches 99.99%.

The invention provides an anti-dandruff composition based on double barrier repair as well as a preparation method and application thereof, and relates to the technical field of shampoo supplies, the anti-dandruff composition comprises the following effective components: at least two of isodon amethystoides extract, polygonum capitatum extract and myrobalan extract. The compound has a synergistic antibacterial effect, still has a synergistic antibacterial effect after being compounded with OCT, and can be used for replacing or cooperating with OCT, so that the dosage of OCT is reduced, and the irritation is reduced; the anti-dandruff composition has the advantages that the anti-dandruff effect is good, the DPPH free radical scavenging capacity of the anti-dandruff composition is better than that of OCT, the isodon amethystoides extract, the polygonum capitatum extract and the fructus chebulae extract are plant extracts and have no irritation to scalp, the whole anti-dandruff composition has no irritation to the scalp, and the technical problems that in the prior art, anti-dandruff products have certain influences on skin barriers, and the long-acting anti-dandruff effect cannot be achieved are solved.

The invention provides an intelligent evaluation method and system for the antibacterial effect of a water matrix standard substance, and relates to the technical field of intelligent evaluation, and the method comprises the following steps: preparing a bacterial suspension in a logarithmic phase and checking turbidity; preparing a water matrix standard substance and a control solvent, and obtaining a baseline parameter set; setting inoculum size and incubation conditions, determining the antibacterial efficiency in parallel, and performing image segmentation correction on sticky colonies to obtain an original observation set; establishing a deviation transfer relationship, correcting the original data, and forming an endpoint quantization set; and the bacteriostatic validity is output through evidence fusion, and a supplementary experiment is carried out on a critical condition. According to the method, the accuracy and reliability of bacteriostatic effect evaluation of the water matrix standard substance are improved.

The invention relates to the technical field of antibacterial non-woven fabrics, and discloses an intrinsic antibacterial non-woven fabric and a preparation method thereof.The intrinsic antibacterial non-woven fabric is prepared by adopting a dip-coating method and by soaking a non-woven fabric in antibacterial slurry, taking out the non-woven fabric for drip drying and then drying the non-woven fabric to constant weight; wherein the antibacterial slurry is prepared by compounding antibacterial polyol with a synergistic antibacterial effect, nano titanium dioxide modified by a coupling functional phenolic hydroxyl Schiff base type antibacterial monomer and a branched antibacterial monomer. According to the intrinsic antibacterial non-woven fabric, the technical problems that in the prior art, an antibacterial agent is large in toxicity, prone to loss and insufficient in antibacterial spectrum coverage range are solved, and the intrinsic antibacterial non-woven fabric can also be applied to the field of filtering materials, the field of medical treatment and public health and the field of textile materials and has the beneficial technical effects of inhibiting bacterial growth and guaranteeing sanitation and safety.

The invention relates to the technical field of materials, and discloses an antibacterial composite pp material and a preparation process thereof.The antibacterial composite pp material is prepared from polypropylene as a main raw material and a compatilizer, a functional fiber modified additive, a rubber additive and the like as auxiliary materials through mixing and extrusion granulation processes. Wherein the functional fiber modified additive is medical stone fiber of which the surface is modified with a reactive macromolecular antibacterial agent, and the reactive macromolecular antibacterial agent can interact with a maleic anhydride group in a compatilizer structure in a subsequent melt extrusion process, so that the interface bonding performance between the medical stone fiber and polypropylene is greatly improved; further, the reinforcing effect of the medical stone fiber is fully exerted, so that the mechanical strength of the polypropylene material is effectively improved. In addition, triclosan in the structure of the macromolecular antibacterial agent has a broad-spectrum antibacterial effect, so that the polypropylene material can be endowed with excellent broad-spectrum antibacterial performance.

The invention relates to the technical field of preparation of antibacterial gloves, in particular to a preparation method of degradable breathable antibacterial gloves, and an emulsion formula of the degradable breathable antibacterial gloves comprises the following components in parts by weight: 100 parts of nitrile rubber modified polylactic acid, 5-10 parts of modified antibacterial filler, 1-3 parts of an anti-aging agent, 0.5-3 parts of a vulcanizing agent, 0.3-2 parts of a vulcanization accelerator and 0.5-1 part of a foaming agent. Through a high-molecular compound composition system, nitrile rubber modified polylactic acid, modified antibacterial filler and other components are compounded to prepare the glove with controllable degradability, lasting antibacterial property and good air permeability; on the basis of covalent binding of silicon dioxide loaded with antibacterial groups and modified chitosan, the synergistic antibacterial effect of the modified antibacterial filler is achieved, and therefore the antibacterial performance of the glove is improved.

The invention relates to a double-layer preservative film for prolonging the shelf life of frozen beef and mutton after unfreezing and a preparation method of the double-layer preservative film. According to the preparation method of the angelica dahurica extract-gliadin nano-particles, the angelica dahurica extract-gliadin nano-particles can be used for preparing a double-layer preservative film, and the preservative film is a natural component and is environmentally friendly and safe. The preservative film is of a double-layer structure, the mechanical performance is enhanced through the double-layer film structure, and meanwhile the preservative film has excellent oxygen and water vapor barrier performance and an antibacterial effect. According to the preservative film disclosed by the invention, slow release of active ingredients is realized by utilizing the Pycnogenin-gliadin nanoparticles, so that the antioxidant and antibacterial effects are remarkably improved, and the quality guarantee period of meat is prolonged. In addition, the preservative film does not need to be in direct contact with food in practical application, potential safety hazards of the food are further reduced, the operation process is simplified, pollution is avoided, a user can conveniently use the preservative film, the preservative film has the advantages of efficient preservation and environmental protection, and the preservative film has good application prospects and value.

The invention discloses a camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition and application thereof, and relates to the technical field of cosmetics. The invention provides a camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition. The camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition is prepared from the following components in parts by weight: 1 to 5 parts of camellia nitidissima flower extract, 1 to 5 parts of seaweed oligosaccharide, 0.01 to 1 part of o-cymene-5-ol and 0.01 to 1 part of tocopherol retinoate. According to the anti-pollution acne-sensitive skin repairing composition containing the camellia nitidissima flower extract, four components including the camellia nitidissima flower extract, the seaweed oligosaccharide, the o-cymene-5-ol and the tocopherol retinoate in proper parts by weight are selected to cooperate with one another, so that the composition has better anti-pollution and antibacterial effects and has very good acne removing, repairing and soothing effects.

The invention relates to the field of plastic films, and particularly discloses a bio-based antibacterial cool-feeling breathable film and a preparation method thereof. The bio-based antibacterial cool-feeling breathable film is prepared from the following raw materials in percentage by weight: 49 to 66.5 percent of matrix resin, 30 to 40 percent of pore-foaming agent, 1 to 3 percent of silane modified cellulose nanofiber, 1 to 2 percent of antibacterial agent, 1 to 5 percent of composite cool-feeling agent and 0.5 to 1 percent of auxiliary agent, the matrix resin comprises PBAT resin and PLA resin in a mass ratio of (7: 3)-(5: 5); the composite cool feeling agent comprises nano aluminum nitride and graphene in a mass ratio of (5-15): 1. The bio-based antibacterial cool-feeling breathable film can be used for medical dressings, disposable medical supplies, mother and baby products and the like, and has the advantages of being good in breathability and moisture penetrability, high in antibacterial capacity, lasting in antibacterial effect, high in mechanical strength, high in cool-feeling coefficient, comfortable to wear and not prone to stuffiness.

The microcapsule controlled-release efficient deodorization paper diaper comprises a deodorization surface layer, a flow guide layer, a composite core body and a bottom layer which are sequentially compounded, the deodorization surface layer is coated with deodorization antibacterial liquid containing controlled-release microcapsules, the composite core body is composed of a rapid absorption layer and a deodorization water locking layer, the rapid absorption layer and the deodorization water locking layer both contain controlled-release microcapsules, and the bottom layer is coated with deodorization antibacterial liquid containing controlled-release microcapsules. The preparation method comprises the following steps: S1, preparing quaternary ammonium salt chitosan; s2, preparing an inner core layer of the controlled-release microcapsule; the preparation method comprises the following steps: S1, preparing a shell layer, S2, preparing quaternary ammonium salt chitosan, S3, preparing amphiphilic chitosan microspheres, S4, loading a natural plant extract on the amphiphilic chitosan microspheres, S5, coating the shell layer to prepare a controlled-release microcapsule, S6, preparing a deodorization surface layer, S7, preparing a composite core body, and S8, carrying out composite molding on the paper diaper. The deodorization efficiency and durability are obviously improved, and meanwhile, the paper diaper is kept dry and comfortable.

The invention discloses a stainless steel material for a food-grade straw and a preparation process of the stainless steel material, and relates to the technical field of stainless steel material plating. The silver coating and the antibacterial coating are arranged on the surface of the stainless steel material, and the stainless steel material has good wear resistance and antibacterial performance through the action of the double protective layers. Sulfonated polyphenylene sulfide is added into a silver plating solution, a plating layer is formed after electroplating, the surface of a stainless steel material is not prone to being scratched, the wear resistance of stainless steel is improved, quaternary ammonium salt modified tea polyphenol-nano-silver composite particles are added into the antibacterial coating, and through the synergistic antibacterial effect of quaternary ammonium salt, tea polyphenol and nano-silver, the wear resistance of the stainless steel material is improved. The broad-spectrum antibacterial property is realized, and the efficient antibacterial effect is achieved.

The invention discloses application of macadamia nut green peel in preparation of an antibacterial agent, and belongs to the technical field of application of antibacterial agents. The invention finds that the macadamia nut green peel has an antibacterial effect for the first time, and the preparation method of the antibacterial agent comprises the following steps: cleaning the macadamia nut green peel, drying, crushing, sieving, collecting powder on the sieve, adding distilled water, carrying out a hydrothermal reaction, carrying out suction filtration after the reaction is finished, and collecting filtrate, so as to obtain the antibacterial agent. The antibacterial agent prepared from the macadamia nut green peel can effectively inhibit escherichia coli and staphylococcus aureus, and a new way is provided for resource utilization of the macadamia nut green peel.

The invention provides a heat-storage warm-keeping down-locking layered fabric and a down jacket. The heat-storage warm-keeping down-locking layered fabric sequentially comprises a skin-friendly layer, a liner cloth layer and a heat-storage warm-keeping down-locking layer from inside to outside, and the heat-storage warm-keeping down-locking layer is prepared by napping a heat-storage warm-keeping fabric; yarns for weaving the heat-storage and warm-keeping fabric are heat-storage and warm-keeping fiber / hollow polyester fiber / wool fiber blended yarns; the heat-storage warm-keeping fiber comprises polyester and a heat storage agent, and the preparation method of the heat storage agent comprises the following steps: firstly loading a polyethylene glycol / nano molybdenum disulfide composite material by adopting porous silicon dioxide microspheres, then mixing with a mixture containing silica sol and nano metal silver, and performing vacuum drying to obtain the heat storage agent. The heat-storage warm-keeping down-locking layered fabric has excellent heat-storage warm-keeping effects, can lock down, has a good antibacterial effect, and has a very good application effect when being used as a lining fabric of a down jacket.

The invention belongs to the technical field of bioengineering medicines, and particularly relates to a gel dressing for repairing skin wounds and a preparation method of the gel dressing. The anti-fouling coating is prepared from the following raw materials in parts by weight: 65 to 75 parts of polyvinyl alcohol, 14 to 20 parts of sodium alginate, 4 to 8 parts of sodium carboxymethyl cellulose, 1 to 3 parts of sodium hyaluronate, 12 to 22 parts of glycerol, 1 to 3 parts of surface anti-fouling additive, 6 to 10 parts of antibacterial microcapsule and 2 to 2.8 parts of compound ion. According to the invention, a PVA freeze-thaw physical network and an alginic acid Ca / Zn composite ion network cooperate to limit a pore channel, so that stable forming is realized; a chitosan / sodium tripolyphosphate microcapsule is prepared from polyhexamethylene biguanide hydrochloride and covered with sodium alginate, release sensitive to pH / ionic strength, acceleration in an inflammation stage and self-limiting in a later stage are constructed, and long-acting bacteriostasis is formed by SA-Zn site slow release; the stability and staged adaptation are highlighted through processes such as encapsulation, low-shear doping and the like and raw material synergy.

The invention relates to a skin grafting material and a using method thereof. The skin grafting material is composed of compressed sponge and repairing liquid. The compressed sponge is selected from chitosan sponge, collagen sponge or polyvinyl formal sponge; the repairing liquid is selected from normal saline containing human epidermal growth factors and / or normal saline containing superoxide dismutase. The use method comprises the following steps: attaching the skin layer of the cut skin graft to the compressed sponge, then putting the compressed sponge into a medical skin rolling machine, and cutting the skin graft into micro skin graft; the cut miniature skin graft is soaked in the repairing liquid, is attached to the position to be subjected to skin grafting after fully absorbing the liquid and expanding, and is wrapped with gauze. The skin grafting material provided by the invention can reduce damage to newborn granulation when the skin grafting material is removed, has an antibacterial effect and improves scar hyperplasia contracture after a skin grafting wound operation; meanwhile, the sponge which absorbs the liquid and expands can slowly release the repairing liquid, so that skin cell regeneration is promoted, epithelization of a skin grafting area is accelerated, and wound healing is promoted; the healing effect is good, and the application prospect is wide.

The invention provides a hair and bath cleaning product, which is prepared from the following ingredients in parts by weight: 0.3 to 1.0 part of cationic surface active agents, 9.0 to 15.3 parts of ampholytic surface active agents and 0.6 to 3.6 parts of anionic surface active agents. The hair and bath cleaning product can effectively control the generation of flocculation in the dilution process, the product keeps clear and stable when diluted by 10-10.4 times, flocculation starts to occur when the dilution ratio is greater than or equal to 10.5, and the hair and bath cleaning product is particularly suitable for being directly used after being diluted. The product has the effects of washing hair and bathing, is not added with antibacterial components, also has a good antibacterial effect, and can avoid the breeding of bacteria in the use process of the diluent.

The invention relates to the technical field of high polymer material processing and coating, in particular to an acrylic plate antifouling and antibacterial enhancing method based on a nano-composite coating, which comprises the following steps: S1, pretreating the surface of an acrylic plate; s2, preparing a nano composite coating; s3, coating: coating the surface of the acrylic plate with the activated surface with the nano-composite coating liquid, adopting a spin-coating method for coating, determining the spin-coating speed through an early test so as to control the thickness of the coating, checking the uniformity of the coating through vision after coating, and re-coating if non-uniform parts exist, in the coating process, the environment humidity is monitored through a humidity sensor and controlled at a low level so as to prevent coating defects, and the acrylic plate coated with the nano composite coating is obtained; and S4, coating curing. The antifouling and antibacterial effects of the coating are comprehensively evaluated by means of contact angle measurement, dirt adhesion experiments and the like, and the concentration or spin-coating speed of the nano material is adjusted according to a test result, so that the performance of the coating is further optimized.

The invention discloses an itching-relieving and hair-loss-preventing micro-capsule composition containing a golden camellia extract and a preparation method of the itching-relieving and hair-loss-preventing micro-capsule composition, and relates to the technical field of daily chemical products. The microcapsule mainly comprises a surfactant, palmitoyl tripeptide, ossein amino acid, betaine salicylate, a nano zinc oxide chelate, a plant extract, vegetable oil and a microcapsule component formed by a microcapsule wall material prepared from gelatin and sodium alginate. The plant extract, the plant oil-containing microcapsules, palmitoyl tripeptide, ossein amino acid, betaine salicylic acid, nano-zinc oxide chelate and the like have synergistic interaction, and the plant extract has antioxidant, antibacterial and anti-inflammatory effects and is matched with other components, so that lasting antibacterial effect is enhanced, dandruff can be effectively cleaned and removed, scalp can be repaired, microcirculation of the scalp can be effectively improved, and the scalp care effect can be improved. The scalp itching is reduced, and the alopecia problem is improved.

The present invention relates to the technical field of metal-organic framework materials, and in particular to a high-performance photocatalytic metal-organic framework (MOF) antibacterial material, a preparation method therefor, and a use thereof. The preparation method comprises: adding p-toluenesulfonic acid, tris(4-aminophenyl)amine, and Cu3L into a polyethylene glycol solution; performing stirring for uniform mixing and then heating for reaction; collecting the resulting precipitate by centrifugation and washing same; and drying the precipitate to obtain GZHMU-2 powder. The GZHMU-2 having a high-performance photocatalytic MOF antibacterial material is synthesized by means of a condensation reaction of an aldehyde and an amine. Under irradiation, the GZHMU-2 can generate active oxygen by means of a photocatalytic effect, thereby achieving an antibacterial effect. The GZHMU-2 has a killing effect on Escherichia coli (EC) and Staphylococcus aureus (SA), and is prepared into an antibacterial film by means of hot pressing. When the antibacterial film is applied to masks, targeted and efficient killing of EC and SA can be achieved, thereby achieving effective protection of persons wearing the masks.

The invention discloses a preparation method and application of a marine high-molecular polysaccharide hydrogel wound dressing. The hydrogel is formed by cross-linking the marine polysaccharide composition and the cross-linking agent, and the gelation time is short and is about 15 seconds; pores are uniform and moderate; the self-healing property, the adhesion property and the swelling property are high; the antibacterial effect is strong, and the inhibition rates on escherichia coli and staphylococcus aureus are both higher than 90%; skin irritation and skin allergy are avoided, and the biological safety is high; hemostasis can be rapidly carried out within 10s, and the bleeding amount is obviously reduced; the hydrogel dressing can rapidly shrink and scab a wound surface, has the effect of promoting wound healing, and has the effects of stopping bleeding and promoting wound healing which are obviously superior to those of commercially available hydrogel dressings (German Hydrosorb Gel) (Plt; 0.05), and is a safe and effective high-performance wound dressing. In addition, the hydrogel is simple in formula and high in industrialization prospect, is expected to be developed into novel wound dressings and medical instruments, and breaks through the trapping that domestic hydrogel dressings are mostly dependent on import.

The invention discloses dry and comfortable antibacterial menstrual period pants and a preparation method thereof, and belongs to the technical field of female hygienic products, and the preparation method comprises the following steps: beta-cyclodextrin and sophocarpidine are utilized to form a superfine capsular inclusion compound, the superfine capsular inclusion compound is adsorbed on the surface of macroporous super absorbent resin to form antibacterial composite resin powder, and the antibacterial composite resin powder is sprayed on the surface of a composite aerogel sheet; when meeting blood, the affinity of water molecules to external hydroxyl groups of cyclodextrin is enhanced, so that the binding force of matrine and beta-cyclodextrin is weakened, and matrine is released; the antibacterial composite resin powder expands when encountering water, compresses and promotes the release of the nano antibacterial inclusion compound loaded on the surface, so that the release of the matrine contained in the antibacterial composite resin powder is accelerated, and a rapid and highly-targeted antibacterial effect is realized; the composite aerogel sheet can improve the resilience force of the menstrual period trousers, has an extremely high specific surface area, a nanoscale hole structure and an extremely low heat conductivity coefficient, and can effectively prevent heat transfer and improve air permeability.

The invention provides a mouthwash composition which comprises the following effective components: lactobacillus salivarius, domiphen, a pH regulator, a stabilizer and a preservative, the content of the lactobacillus salivarius is 107-1011 CFU / mL, the concentration of the domiphen is 0.05-0.2 wt%, the pH value of the mouthwash composition is regulated to 6.8-7.2 by the pH regulator, and the balance of water, the mouthwash composition can achieve an improved antibacterial effect in an oral environment, and can achieve a lasting antibacterial effect under the condition of maintaining the balance of oral microbial communities.

The invention provides a fluorescent antibacterial acrylic emulsion as well as a preparation method and application thereof. The fluorescent antibacterial acrylic emulsion comprises an acrylic monomer, AIE fluorescent micromolecules, an antibacterial quaternary ammonium salt monomer, a nonionic emulsifier, a cationic emulsifier, an initiator, a stabilizer and deionized water. The cosolvent of the water-based acrylic coating is water, no VOC (volatile organic compound) is discharged when the water-based acrylic coating is used, and harm to the environment and human bodies is reduced to the minimum; meanwhile, the antibacterial coating is prepared in a positive ion and ROS joint antibacterial mode, and the antibacterial effect is more excellent; and a convenient detection method for reflecting the change of the antibacterial property of the coating through the fluorescence change of the coating avoids the trouble of professional biological detection.

The invention discloses a regenerated oil bio-based plastic mixed rubber sole material, which is prepared from the following materials in parts by mass: 40 to 60 parts of regenerated oil bio-based plastic, 20 to 30 parts of smoke rubber, 10 to 15 parts of modified mixed reinforcing filler, 10 to 20 parts of calcium powder, 0.5 to 1.0 part of dicumyl oxide, 1.0 to 1.5 parts of zinc oxide, 0.5 to 0.8 part of stearic acid, 1.5 to 2.5 parts of octylated diphenylamine and 4 to 6 parts of antibacterial and mildew-proof filler. The invention relates to the technical field of rubber soles. According to the regenerated oil bio-based plastic mixed rubber sole material and the preparation method thereof, by adding the modified mixed reinforcing filler and the modified antibacterial mildew-proof filler, when the regenerated oil bio-based plastic mixed rubber sole material is applied to the regenerated oil bio-based plastic modified rubber sole material, the situations of bending, deformation and the like of a sole in the wearing process can be better adapted; and the wearing comfort and durability of the sole are improved. The regenerated oil bio-based plastic mixed rubber sole material meets the antibacterial effect requirement, has the anti-cracking performance, can be better applied to the regenerated oil bio-based plastic mixed rubber sole material, improves the comprehensive performance of the sole and prolongs the service life of the sole.

The invention discloses an oral dispersion liquid composition capable of effectively inhibiting bacteria, and relates to the technical field of nano-emulsion / micro-capsule suspension liquid. Aiming at the problems of transient antibacterial effect, strong irritation and poor dispersibility of the traditional oral care product, the composition is prepared by adopting a nano-emulsion and micro-capsule technology. A bacteriostatic agent (such as nano-silver and thyme volatile oil) is wrapped in urea formaldehyde microcapsules through an interfacial polymerization method, and protection and controlled release of active ingredients are achieved. The nano-emulsion is prepared by compounding Span and Tween emulsifiers, so that high dispersity and permeability are ensured; tea polyphenol is added as an antioxidant, so that the stability is enhanced. The preparation method comprises the steps of nano-emulsion preparation, active ingredient microencapsulation, disperse system construction and sterilization filling, and the particle size D90 of a final product is smaller than or equal to 200 nm. The composition has a lasting antibacterial effect, good stability and safety, and is suitable for oral health maintenance.

The invention discloses a polyurethane coating and a preparation method thereof, and belongs to the technical field of antibacterial coatings. The preparation method of the polyurethane coating comprises the following steps: carrying out acyl chloride substitution reaction on a phenolic substance and a chlorine donor to obtain an intermediate reactant, and carrying out conjugate addition reaction on the intermediate reactant and an amine substance with hydroxyl groups at two ends to obtain antibacterial diol; reacting the antibacterial diol with isocyanate to obtain a polyurethane coating; the phenolic substance is selected from at least one of thymol, carvacrol, paeonol, catechol and theaflavin. The antibacterial coating is applied to the aspect of an antibacterial coating of a food contact part, the problem that the antibacterial property of an existing antibacterial coating is difficult to last is solved, and the antibacterial coating has the synergistic antibacterial effect of killing and defending bacteria.

A device for relieving migraine symptoms comprises a straight pipe and a cylinder, the left side of the straight pipe communicates with the right side of the cylinder, the left side of the cylinder is connected with a compression structure, the right side of the outer wall of the straight pipe is connected with a control structure, the right side of the control structure is connected with a curved block, and the left side of the compression structure is connected with a grip. The outer wall of the compression structure is attached to the inner wall of the straight pipe. In the control structure, the inner wall of the sleeve and the right side thread of the outer wall of the straight pipe are fixed in a threaded mode, then the curved block is inserted into the ear canal, the protection pad is attached to the outer side of the ear canal, the curved block can be prevented from being inserted too deep, and the protection pad can be tightly attached to the outer side of the ear canal through the colored cotton material of the protection pad to guarantee sealing; meanwhile, the device has an antibacterial effect and good skin-friendly property, so that the comfort of ears is ensured, the use safety of the device for relieving the migraine symptom is improved, and the normal use of the device for relieving the migraine symptom is ensured.

The invention discloses a preparation method of a rare earth ion doped antibacterial modified hydroxyapatite whisker material, and relates to the technical field of medical biomaterials.The preparation method comprises the steps that acetamide is dissolved in deionized water, and a solution A is obtained; dissolving calcium salt, cerium salt and ammonium salt in a certain proportion in the solution A to obtain a solution B; stirring the solution B at room temperature, performing ultrasonic dispersion, and adjusting the pH value to be acidic to obtain a solution C; and putting the solution C into a high-pressure reaction kettle, heating and reacting, aging, cleaning, carrying out suction filtration, and drying to obtain the cerium-doped hydroxyapatite whisker material. The preparation process is simple, the product is stable, and the prepared modified hydroxyapatite whisker has an obvious antibacterial effect on escherichia coli and staphylococcus aureus and can be applied to the field of bone repair antibacterial materials.

The invention discloses antibacterial ceramic glaze and a preparation method thereof, relates to the technical field of ceramic glaze, and solves the problems that part of ceramic glaze is poor in antibacterial effect, the mechanical strength of the glaze surface is relatively low, and the production process is relatively tedious. The invention discloses antibacterial ceramic glaze and a preparation method thereof. The antibacterial ceramic glaze comprises the following components in parts by weight: 25-45 parts of potassium feldspar, 5-10 parts of nano yttrium-doped zirconium oxide, 3-10 parts of a lanthanide silver composite antibacterial agent, 7-25 parts of a fluxing agent, 1-7 parts of a wear-resistant reinforcing agent, 2-6 parts of an adhesive and 20-50 parts of deionized water. According to the invention, the nano yttrium-doped zirconium oxide and the lanthanide silver composite antibacterial agent are added into the glaze for cooperation, so that rare earth metals yttrium, lanthanum and silver in the glaze have a synergistic effect, the produced glaze can form a stable antibacterial phase at a high temperature, and meanwhile, the mechanical strength of the glaze surface is remarkably improved by the nano zirconium oxide.

The invention discloses a whitening and antibacterial knitted fabric and a preparation method thereof, and belongs to the technical field of functional clothing, Zn (NO3) 2.6 H2O and 1, 4-phthalic acid (H2BDC) are fully dissolved and dispersed through N, N-dimethylformamide (DMF) and dried to prepare Zn-BDC MOF powder, then nicotinamide and chitosan with whitening, spot fading and antibacterial functions pass through N, N-dimethylformamide (DMF) through interaction of subjects and guests, and the functional clothing is obtained. And dissolving N, N-dimethylformamide, and embedding into MOF pores to obtain the whitening skin-care antibacterial functional MOF material. And finally, adding a polyvinyl alcohol solution to obtain a functional finishing agent, and finishing the finishing agent on knitted garments to obtain the knitted fabric with the whitening, skin-care and antibacterial composite functions. The obtained knitted fabric has good whitening, skin care and antibacterial effects and can be applied to sportswear worn in daily life, and knitted garments made of the knitted fabric have the whitening and skin care effects, are good in use comfort and efficiently resist bacteria.