38results about How to "Has antibacterial and antiviral effects" patented technology

The invention discloses an antibacterial and antiviral CoCrCuFeNi high-entropy alloy and an in-situ alloying method employing selective laser melting and application thereof, and belongs to the technical field of high-entropy alloys. The in-situ alloying method employing selective laser melting of the antibacterial and antiviral CoCrCuFeNi high-entropy alloy comprises the following steps: mixing pre-alloyed CoCrFeNi powder and Cu powder to obtain mixed powder; flatly laying the mixed powder layer by layer; and carrying out selective laser melting by adopting laser as an energy source. According to the method, the selective laser melting technology is combined with the antibacterial and antiviral high-entropy alloy, and in-situ alloying is achieved in the selective laser melting process, so that the alloy development efficiency is improved, and the homogeneous single-phase face-centered cubic high-entropy alloy is obtained, and the quasi-equal-atomic-ratio CoCrFeCuNi high-entropy alloy with broad-spectrum antibacterial and antiviral capacity and good mechanical property is prepared.

The invention discloses an anti-virus filter layer prepared from copper-containing chitosan fibers, and relates to the technical field of sanitary protection articles. A preparation process of the copper-containing chitosan fibers comprises the following steps of immersing chitosan fibers in a soluble copper salt solution, performing circulation reaction for a period of time, soaking with an organic solvent, centrifuging and dehydrating, and drying to obtain the copper-containing chitosan fibers; and preparing the anti-virus filter layer of the copper-containing chitosan fibers from the copper-containing chitosan fibers through a non-woven process. The invention further discloses application of the anti-virus filter layer of the copper-containing chitosan fibers in the sanitary protectionarticle. The anti-virus filter layer and the application thereof have the beneficial effects that a mask prepared by an anti-virus filter layer fabric of the copper-containing chitosan fibers has a good filtering effect on particles such as bacterial viruses and a good killing effect on the bacterial viruses residing on the mask simultaneously, the protection effect can be further enhanced, and the mask can also be used for daily anti-haze or respiratory infection disease protection.

The invention provides a synthesis method for spherical nano-silver particles and the spherical nano-silver particles. The synthesis method for the spherical nano-silver particles comprises the steps that lemon grass extracts are prepared, the lemon grass extracts and water are evenly mixed for obtaining a lemon grass extracting solution, and the pH value of the lemon grass extracting solution is regulated to be alkaline; a soluble silver slat solution and a starch solution are prepared and evenly mixed for obtaining a silver salt mixed solution; and alkaline the lemon grass extracting solution and the silver salt mixed solution are evenly mixed and react at a set temperature for a set period of time, so that a solution containing the spherical nano-silver particles is obtained. According to the synthesis method for the spherical nano-silver particles and the spherical nano-silver particles, the problems that according to an existing synthesis method for spherical nano-silver particles, pollution can be caused, and the environmental friendliness requirement cannot be met can be solved; and in addition, the synthesis cost is low, the synthesized spherical nano-silver particles are small in diameter and high in antibacterial ability.

The invention discloses a multifunctional composite board for furniture. The composite board comprises a base plate layer, an antibacterial layer, a flame-retardant layer, a fading-resistant layer andan easy-to-clean layer, wherein the base plate layer is a PPC base plate layer or a PVC base plate layer; the antibacterial layer is an adhesive layer which contains nano-metal powder and adhesive resin, wherein the adding ratio (by weight) of the nano-metal powder to the adhesive resin is at 3: 1; the flame-retardant layer contains TPE resin and polycarbonate, wherein the adding ratio (by weight) of the TPE resin to the polycarbonate is at 2: 3; the fading-resistant layer contains waterborne polyurethane resin and a fixing agent, wherein the adding ratio (by weight) of the waterborne polyurethane resin and the fixing agent is at 4: 1; and the easy-to-clean layer contains coconut oil powder, polypropylene and acetyl tributyl citrate, wherein the adding ratio (by weight) of the coconut oilpowder to the polypropylene to the acetyl tributyl citrate is at 1: 2: 1. The multifunctional composite board provided by the invention integrates functions of resisting bacteria, resisting flame, resisting fading and making it easy to clean.

The invention provides a medicament for treating acne and belongs to the field of a Chinese medicament preparations. The invention provides a medicament for effectively treating acne. The medicament is prepared from the following raw materials by mass: 150 to 300 of rhubarb, 150 to 300 of dried rehmannia, 100 to 120 of dwarf lilyturf tuber, 50 to 120 of safflower, 20 to 60 of dark plum fruit, 50 to 150 of red paeony root, 100 to 150 of figwort root, 50 to 120 of common scouring rush herb, 50 to 150 of white mulberry root-bark, 50 to 100 of salvia miltiorrhiza bunge, 780 to 950 of cane sugar, 10 to 20 of limianthes alba, 10 to 20 of giant typhonium rhizome, 10 to 20 of gray hair, 10 to 20 of white muscardine silkworm, 2 to 12 of divaricate saposhnikovia root, 5 to 15 of ageratum, 10 to 20 of Mongolian snakegourd root, and 10 to 20 of mung bean.

The invention relates to the technical field of light industry textile, in particular to a preparation method of washable 5A-grade antibacterial and antiviral graphene fiber and a fiber product. The preparation method comprises the following steps: firmly combining an antiviral group and an antibacterial group on the fiber in a chemical bond manner by grafting modification and chemical modification methods, so as to obtain modified fiber with antibacterial and antiviral properties; reprocessing the modified fiber by a dipping method and a padding method through graphene finishing liquid so as to obtain the antibacterial and antiviral graphene fiber or fiber fabric. The fiber or fiber fabric and the fiber product prepared from the fiber or fiber fabric have antibacterial and antiviral effects, have various advantages of graphene fabric, and can be widely applied to the fields of infant products, underwear, bedding articles, homewear, home textile towels, socks, masks, medical supplies, health and epidemic prevention, military supplies and business.

The invention discloses a food additive and belongs to the technical field of the food industry. The food additive comprises raw materials as follows: a Chinese olive extract, a dragon fruit anthocyanin extract, glycosidase, pectinase, cellulase, beta-glucanase, amylase, starch, maltodextrin, acetic acid, butyric acid, dodecyl ester acid and fermentation florae. The food additive is prepared through steps of Chinese olive extraction, dragon fruit extraction, mixing, drying and the like. Chinese olive effective ingredients extracted with the method are high, contain rich substances such as polyphenols and flavonoids and have high antibacterial, anti-corrosion and antioxidant capacity, the dragon fruit anthocyanin extract is added to the food additive, as anthocyanin belongs to flavonoids, the total flavonoid content of the food additive is further increased, and the free radical scavenging capacity and the antioxidant capacity of the food additive are improved.

The invention discloses a therapeutic device used for mosquito bites. The device comprises a shell, a heating device, a water magnetization device and a water outlet part. The front part of the shell is provided with a water storing cavity, the heating device is arranged in the shell and used for heating water in the water storing cavity, the water magnetization device is arranged in the water storing cavity, the water outlet part is arranged at the front end of the shell and communicated with the water storing cavity, and the front end of the water outlet part is provided with a plurality of water outlets. The therapeutic device has the advantages of being safe and convenient to use on the basis of ensuring the itching and pain relieving effects.

The present invention discloses a wild and domestic hybrid pig growth promoting feed additive which is made of the following materials (parts by weight): 3-8 parts of frankincense, 4-8 parts of Solidago decurrens, 5-10 parts of honeysuckles, 4-10 parts of radices trichosanthis, 5-10 parts of Entada phaseoloides, and 3-9 parts of Panicum paludosum. According to the specific physiological and genetic characteristics of a wild and domestic hybrid pig, authentic Chinese herbal medicines are reasonably chosen in the feed additive, and the prescription has efficacies of eliminating indigestion, strengthening spleen and promoting appetite, regulating qi and circulating blood, and clearing internal heat and toxic material. The feed additive can significantly improve the average daily gain of the wild and domestic hybrid pig, feed conversion and carcass traits, and can significantly reduce the feed/meat ratio. The feed additive is natural and versatile, has no residue and no toxic side effects, and has a simple, safe and reliable preparation method.

The invention discloses a forward permeable membrane cleaning agent and a method for applying the same, and belongs to the technical field of water treatment agents. The forward permeable membrane cleaning agent comprises 0.5-2.0mg/L of silver nano-particle suspension liquid which is dispersed in 0.025%-0.05% of sodium dodecyl benzene sulfonate. The forward permeable membrane cleaning agent and the method have the advantages that the forward permeable membrane cleaning agent is wide in application range and can be used as a forward permeable membrane online reverse cleaning agent instead of absorbing liquid for forward permeable membrane bioreactors; a cleaning process is applicable to forward permeable membranes made of various materials, trace silver nano-particles and partial silver ions released by the silver nano-particles can be transmitted through membrane pores along with reverse washing water under a reverse cleaning effect of the water, accordingly, sterilization effects can be realized for organisms on contamination layers deposited on the surfaces of the membranes, the organisms on the surfaces of the membranes can be inactivated, adsorption effects of the organisms on the surfaces of the membranes can be deteriorated, the organic biological contamination layers on the surfaces of the forward permeable membranes can be effectively removed, and the forward permeable membrane cleaning agent is free of damage to the forward permeable membranes and can be reused; the forward permeable membrane cleaning agent and the method are scientific and reasonable in design and have an important significance on solving the difficult problem of contamination of existing forward permeable membranes and expanding application of the silver nano-particles and the forward permeable membranes.

The invention discloses a loach traditional Chinese herbal medicine feed additive, which is prepared from the following ingredients in parts by weight: 70 parts of eucommia barks, 60 parts of lily bulb, 50 parts of radix astragali, 40 parts of radix codonopsis, 50 parts of liquorice roots, 60 parts of radix scutellariae, 60 parts of honeysuckle flowers and 50 parts of radix isatidis. By using theloach traditional Chinese herbal medicine feed additive, the addition of feed use antibiotics in the loach feed can be replaced; the anti-stress and disease-resistant capability of loaches is obviously enhanced; the bait coefficient is obviously reduced; the fat metabolism is improved; the production performance is improved; the aquatic product quality is improved.

An ocular medical composite is characterized in that the raw materials and weight ratios thereof of the active components in the composite are as follows: 1.0 to15g of bear bile, 50 to 600g of wild chrysanthemum, 0.2 to 1.0g of borax, 1.0 to 15g of boric acid, and 2.0 to 5.0g of sodium chloride. The medical composite has functions of antibiosis and antivirus and treats pinkeye effectively. Besides, the medical composite has the features of relieving itching, improving eyesight and removing eyewinker, clearing away heat and relieving spasm, reducing eyestrain, etc.

The invention discloses a method for producing a peanut oil. The method comprises the following steps: pressing peeled peanut kernels to obtain a crude peanut oil A and peanut residues; adding ethanolto the peanut residues, stirring for 20-30 min, and performing supercritical carbon dioxide extraction to obtain a crude peanut oil B; mixing the crude peanut oil A with the crude peanut oil B to obtain a mixed crude oil, and refining the mixed oil to obtain the peanut oil. The method for producing the peanut oil provided by the invention adopts a production process of combining pressing with supercritical carbon dioxide extraction, and improves the purity and yield of the peanut oil; the peanut oil has substantially lossless nutrient components and is a natural green edible oil.

The invention discloses special safe, healthy and low-fatality-rate pig feed which comprises, by weight, 40-60 parts of wheat shorts, 50-70 parts of sleeve-fish ointment, 30-50 parts of tenebrio molitor powder, 10-16 parts of meat and bone meal, 80-90 parts of plant protein additives, 15-25 parts of expanded blood meal, 6-10 parts of modified corn proteins, 2-4 parts of olive oil, 0.6-1 parts of allicin, 0.4-0.6 part of probiotics, 0.06-0.14 part of valine, 0.1-0.2 part of threonine, 1-2 parts of microelements and 2-4 parts of Chinese herbal medicine additives. The pig feed is reasonable in composition and complete in nutrition, live pig eating can be effectively facilitated, protein, vitamin and amino acid nutrition requirements are enhanced, growth requirements of live pigs can be sufficiently met, body types of the live pigs are improved, lean meat percentage is improved, meat quality is improved, the fatality rate of the live pigs is reduced, and the pig feed has remarkable economic benefits.

The invention discloses a hot spring sanitary wet tissue formula. The hot spring sanitary wet tissue formula comprises the following main components: a piece of non-woven fabric, and wet tissue solution, wherein the wet tissue solution comprises 99% of hot spring water, 0.5% of herbal enzyme and 0.5% of PHMB. According to the hot spring sanitary wet tissue formula in the invention, due to comprehensive compatibility of the components, such as the hot spring water, the herbal enzymes and the PHMB, the effects of promoting skin blood circulation, improving metabolism and killing bacteria are achieved; and thus, the hot spring sanitary wet tissue formula in the invention has the advantages of being high in functionality, capable of improving metabolism and capable of achieving sterilization.

The invention provides a surgical instrument cleaning fluid prepared from raw materials in parts by weight as follows: 22-28 parts of common rush, 10-20 parts of cypripedium Sp., 8-12 parts of Gardneria angustifolia Wall., 12-16 parts of Asplenium prolongatum Hook., 15-19 parts of Sedum leucocarpum Franch., 12-16 parts of all-grass of irisleaf oberonia, 5-9 parts of hypochlorite and 2-4 parts of sodium dodecyl sulfate. The cleaning fluid is prepared with a corresponding preparation method and has the function of cleaning surgical instruments.