49 results about "Viral Function" patented technology

Gene transfer vectors, especially adenoviral vectors, and synthetic vectors capable of emulating specific viral functions, that carry gene sequences capable of ameliorating or preventing the symptoms of cardiovascular disease are disclosed. Such methods can be used to treat restenosis, especially when incident to injury by angioplasty.

The invention relates to an application of tetrahydroindolone/ tetrahydroindazolone/ tetrahydrocarbazole derivatives and salts thereof in the preparation of antiviral drugs. The tetrahydroindolone derivatives, the tetrahydroindazolone derivatives or the tetrahydrocarbazole derivatives, as well as the salts thereof of the invention have anti-viral functions, and the virus comprises I-typed and II-typed herpes virus, coxsackie virus type 3 (CVB3) and hepatitis B virus.

The plant DNA virus carrier includes the infectious carrier of Chinese tomato yellowing curly leaf virus DNA-A and DNA-beta, derived plant gene silencing carrier and virus expressing carrier. The present invention also provides one new kind of satellite DNA molecule constructing plant DNA virus carrier and it has at least 72% homology with any one sequence of SEQ ID No.1-12. The present invention also provides the use and method of utilizing plant DNA virus carrier in virus functional genome research, plant functional genome research and foreign protein expression. The present invention provides one important platorm for researching virus genomee structure, function and expression and regulation mechanism and the interaction between virus and plant; provides one excellent tool for researching plant functional gene; and establishing one technological platform for using plant as bioreactor expressing foreign protein.

The making process includes mixing nano carbon material and volatile solvent to compound solution with dispersed nano carbon material of 3-50 g in each liter, soaking cotton gauze in the solution or brushing the solution to the cotton gauze, and drying to obtain the cotton fabric. The cotton fabric has virus and bacteria killing function greatly higher than that of other active carbon material.The present invention adopts fibrous carbon nano material, which is twisted to cotton fabric and has great adhesion, high durability and other advantages compared with granular carbon nano material and other kind of carbon nano material.

The invention relates to a method for easily and quickly structuring a Chinese wheat mosaic virus (CWMV) whole-length cDNA infectivity clone. One-step method RT-PCR amplification is carried out with a purified viral genome RNA as a template by applying one set of viral genome specific primers, wherein the number of the primers is four, and the primers are P1F, P1R, P2F and P2R respectively; an amplification product is purified and then connected to a carrier. It is shown through biological activity analysis that the CWMV whole-length cDNA clone obtained through the method can successfully infect wheat and other plants and can be replicated, subjected to system movement and assembled in plant bodies, and thus it is indicated that the clone has the infection activity and can be used for research of related virus function genomes and analysis of plant disease resistance.

The invention relates to a reusable bacteria-haze-virus prevention mask and a preparation method thereof. The reusable bacteria-haze-virus prevention mask comprises a silica gel housing, a surface cover separated from the silica gel housing, and a replaceable antibacterial blocking filter disc which is arranged between the housing and the surface cover in a sealing mode through physical dimensioncooperation of the silica gel housing and the surface cover. The silica gel housing and the surface cover which are arranged in a separated mode can be cleaned and disinfected by using common methodssuch as water cleaning, stewing and alcohol disinfection and can be repeatedly used, and the service life is prolonged; the silica gel housing designed through 3D face engineering is reasonable in structure and high in sealing degree with the face, the surface cover is porous, the air feeding and exhausting quantity is large, and the protective efficiency and air permeability of the mask are coordinated very well; and the blocking filter disc can be independently and regularly replaced and replaced with a cut common medical mask or cut medical surgical mask for emergency, and the average comprehensive use cost is greatly reduced. The bacteria-haze-virus prevention mask is reusable and has the good bacteria-haze-virus prevention function.

The present invention discloses one plant virus satellite DNA beta molecule, its infections cloning and the preparation process of its expression carrier. The plant virus satellite DNA beta molecule is coromadel coast falsemallow yellow vein virus satellite DNA-beta, which has whole sequence length of 1348 bp, no homology with geminivirus DNA-A sequence, one sectino of 115 nt conserved area, one 118 and open reading frame and one A-rich area in different length. The present invention also relates to the infections cloning of the virus and the infectious cloning may be used in virus functional genome research. The present invention also provides the expression carrier constructing method and preparation process of the satellite DNA-beta.

The present invention discloses a preparation method of an anti-bacterial and anti-virus fabric, the fabric and a mask, protective clothing, a hat and a shoe cover prepared from the fabric. The preparation method of the anti-bacterial and anti-virus fabric comprises the following steps of (1) preparing anti-bacterial and anti-virus feed liquid, wherein the anti-bacterial and anti-virus feed liquidcomprises water and a GS5T fabric anti-bacterial finishing agent, and the mass ratio of the water to the GS5T fabric anti-bacterial finishing agent is (17-21) : 1; (2) soaking the fabric in the anti-bacterial and anti-virus feed liquid with the temperature of 45+/-15 DEG C for at least 2 seconds; and (3) drying the fabric after soaking is completed. The mask prepared from the fabric prepared withthe method has the excellent anti-bacterial and anti-virus functions; and the protective clothing, the hat and the shoe cover prepared from the fabric prepared with the method also have the excellentanti-bacterial and anti-virus functions.

A device with functions of preventing and treating COVID-19 virus comprises an ultrasonic generator, an ultrasonic transducer, a stabilized voltage supply, a power switch, an axial fan, an air filter,a molecular sieve membrane, a mask, an eyeshade, an atomization tank, a timer and an outer shell; the atomization tank is installed in the outer shell, and the ultrasonic transducer is installed below the atomization tank; the upper end of the atomization tank is covered with a liquid adding pipe, a mist guide pipe and an air pipe, a sealing cover is arranged at the upper end of the liquid addingpipe, the molecular sieve membrane is arranged in the upper end of the mist guide pipe in a sleeving mode, and the mask and the eyeshade are connected with the mist guide pipe through atomization pipes; the axial fan and the air filter are installed on the upper portion in the outer shell, an air outlet of the air filter is connected with an air inlet of the axial fan, and an air outlet pipe of the axial fan is connected with the air pipe; nano metal coatings are arranged on the inner side surfaces of the mask and the eyeshade; and an ultrasonic generator body, the stabilized voltage supply and the timer are installed in the outer shell and connected with the fan and the ultrasonic transducer. According to the device, the adsorption capacity of an affected part is improved, and a good coronavirus treatment effect can be achieved.

The invention discloses a preparation method of an antibacterial and antiviral functional film. The antibacterial and antiviral functional film is prepared from the following raw materials in parts by weight: 22-30 parts of a water-soluble polymer adhesive, 5-10 parts of nano-silver sol, 2-10 parts of an organic antibacterial agent, 5-15 parts of auxiliaries and 31-60 parts of water. The antibacterial and antiviral functional film is high in use safety, the quick-acting antibacterial rate of the treated film surface reaches 99% or above, and the film is very good in quick-acting killing effect on influenza A virus (H1N1), non-toxic, non-irritant to skin and very good in long-acting lasting effect.

This invention provides antibacterial and antiviral compositions and methods. The compositions possess prolonged and powerful antibacterial/antiviral functions under light exposure and even under completely dark conditions, while daylight exposures could recharge the functions repeatedly. In some embodiments, compositions of the invention can be employed in personal protective equipment (PPE) such as face masks, biologically self-cleaning air and water filters, medical devices, and products. The biocidal PPE can prevent transmission of infectious diseases such as Ebola and respiratory viruses. In some embodiments, compositions of the invention can be employed in food protectant materials to provide antimicrobial and antiviral bio-protection during food transportation and storage.

The invention relates to a medical mask with a physical method for killing germs and viruses. A PP non-woven fabric layer or afused cloth filter layer is arranged outside the mask; a heating materialis added, high temperature is generated to kill or weaken the activity of viruses in germs or liquid drops,electric heating carbon fiber yarns are used,the temperature of the fused cloth filter layeror the outward PP non-woven fabric layer of the mask reaches or exceeds 56 DEG C,many viruses including novel coronaviruses can be inactivated at 56 DEG C, the carbon fiber heating wires are arrangedon the outward PP non-woven fabric layer or the outward surface of the melting cloth layer tightly connected below the PP non-woven fabric layer when the target is reached; and generated heat is mainly concentrated on the outward face, the temperature of the inward face close to the face of a person is reduced to the degree that the person feels comfortable, and the temperature of the outward facecan be increased to the high temperature which is not limited to 100 DEG C.

The invention discloses a traditional Chinese medicine preparation with an antiviral function. Raw materials, namely, peach seeds, seeds of job's tears, heartleaf houttuynia herbs, cape jasmine, purslane herbs, ginkgo seeds, dark plum fruits, semen cassiae, mulberry leaves, perilla and mint, are matched, so that the preparation has a synergistic effect, and the raw materials cooperate with one another to realize functions of promoting blood circulation, removing blood stasis, regulating immunity and killing viruses. Clinical trials indicate that the traditional Chinese medicine preparation has a very good treatment effect on viruses such as flat warts, condyloma acuminatum and the like and has a very good conditioning effect on various diseases (skin and mucosa low-risk and high-risk problems such as flat warts, common warts, condyloma acuminatum, early-stage cervical cancers) caused by human papilloma viruses as well as hepatitis B virus, various common cold viruses and the like.

The invention aims to provide the cold spraying copper-containing stainless steel coating with antibacterial and antiviral functions and the preparation process thereof, so that door handles, handrails or handrails and other public facilities in a public environment can generate an effective inhibition effect on high-concentration bacteria and viruses in the environment within 2 hours, and the antibacterial rate reaches 99.9% within 4 hours; the virus inhibition rate reaches 90% or above. The copper-containing stainless steel coating is prepared by mixing 304L stainless steel and pure Cu powder, and the cold spraying coating with long-acting antibacterial and antiviral functions is obtained by controlling the powder mixing speed and time, the carrier gas temperature of cold spraying, the spraying distance, the spraying pressure and the powder feeding temperature. The cold spraying preparation process is simple and feasible, and is suitable for large-scale popularization of a production line. While the corrosion resistance of the base material is greatly improved, the adhesion and reproduction of bacteria and viruses in a living environment can be fundamentally inhibited, and a propagation chain of microorganisms in a public area is radically cut off.

The invention relates to a multi-layer self-adhesive melt-blown cloth with sterilization and virus killing functions, a production process and a production line thereof, the multi-layer self-adhesive melt-blown cloth comprises more than two layers of melt-blown cloth, a traditional Chinese medicine layer or a chemical sterilization and virus killing component layer is arranged between every two layers, and the multi-layer structure is overlapped up and down and self-adhered. After a fiber cloth layer is formed on a melt-blowing production line adopting more than two melt-blowing nozzles, a traditional Chinese medicine layer or a chemical sterilizing and virus-killing component layer is sprayed by an atomizing or spraying device of traditional Chinese medicine or chemical liquid medicine, and meanwhile, drying and electrostatic electret are performed by an air suction drying device. The cloth is simple in structure and convenient to manufacture, has the functions of efficiently adsorbing, filtering and killing fine particulate matters, viruses and bacteria, and has the advantages of long shelf life and the like.

The invention relates to the field of viruses, in particular to a flexible composite circuit board pretreatment device with a virus killing function. The technical problem to be solved by the invention is to provide the flexible composite circuit board pretreatment device with the virus killing function. According to the technical scheme, the flexible composite circuit board pretreatment device with the virus killing function comprises a micro-rotating mechanism, a bubble removing mechanism, a gluing and attaching mechanism, a fixing frame and the like; the micro-rotating mechanism is connected with the fixing frame; the bubble removing mechanism is connected with the fixing frame; and the gluing and attaching mechanism is connected with the fixing frame. According to the invention, bubbles in a solid-liquid phase change agent can be fully removed, so that the surface of an insulating flexible medium object is smooth, the surface of the insulating flexible medium object can be uniformly coated with antivirus coating particles in the later period, and the insulating flexible medium object can be prevented from being deformed during hot-pressing attachment, so that the yield is greatly improved.

A method for realizing virus-check and virus-kill includes starting up embedded system in HPA region to call virus-killing module for executing operation of virus-checking and virus-killing then loading operation system and starting up computer when BIOS self detection is over and signal of executing virus-killing operation is detected. A computer for realizing virus-check and virus-kill is also disclosed.

The invention relates to a handheld mobile equipment protection sleeve with a virus killing function. The handheld mobile equipment protection sleeve sequentially comprises a virus killing paint layer, a sweat-proof paint layer, a waterproof film layer, an adhesive layer and a substrate plate layer, wherein the antivirus paint layer is prepared from the following components in parts by weight: 90 to 95 parts of nano silver-copper alloy mixed particles, 7 to 9 parts of peony root and bark extract and 3 to 5 parts of zirconium oxide powder; the sweat-proof paint layer is prepared from the following components in parts by weight: 75 to 80 parts of sodium polyacrylate and 5 to 10 parts of glycerol; the waterproof film layer is hollow, a solid-liquid phase change agent is arranged in the waterproof film layer, and the phase change critical point of the solid-liquid phase change agent is 10-15 DEG C; the base body plate is bonded with the waterproof film layer through the adhesive layer. The protective sleeve for the handheld mobile equipment has the advantages that sweat can be effectively prevented, bacteria and viruses can be directly killed, and cooling can be accelerated to be below the normal temperature.

The invention relates to a coating having a virus killing function and formed on the surface of an article. The coating contains a partially haloaminated polyamine derivative; and a structural formula is [NRX]m[NHR]1-m, wherein R is H(CH2)n, n is 0-20, X is Cl, Br or I atom, m is the mole fraction of a haloaminated amino group monomer repeating unit and is equal to 0.1-0.9, and 1-m is the mole fraction of an amino group monomer repeating unit. Nitrogen-halogen bonds N-X exist in the partially haloaminated polyamine derivative, the nitrogen-halogen bonds produce a hydrolysis reaction when encountering water to release X<+> ions which have strong oxidizing property and can kill viruses, and the ions adhere to the surface of the article through amino groups in the partially haloaminated derivative and hydrogen bond acting force formed on the polar surface to form the coating with the virus killing function.

The invention provides a novel antibacterial and antiviral composition and a treatment process thereof. The surface of a treated product has quick and lasting antibacterial and antiviral functions. Meanwhile, the composition can resist high temperature of 170 DEG C and ultraviolet light irradiation for a long time, and still keeps antibacterial and antiviral functions. The composition does not irritate the skin, and has wide killing and inhibiting effects on infection or pathogenic gram-positive bacteria, escherichia coli, staphylococcus aureus, candida albicans, fungi, influenza viruses (suchas H1N1/H3N2 and the like), yeast, viruses (such as hepatitis A, hepatitis B, rabies viruses and HIV) and the like. The antibacterial and antiviral process provided by the invention can be widely applied to textiles, engineering plastic plastics (ABS/PC/POM/TR90/nylon/TPE/TPU/silica gel/rubber), glass, leather and the like.

The invention provides an invisible mask with a virus disinfecting and killing function, and relates to the technical field of disinfecting and killing equipment manufacturing. The invention discloses an invisible mask with a virus killing function. The invisible mask comprises a shell and a chlorine dioxide disinfectant, the chlorine dioxide disinfectant is of a pill structure and is arranged in the shell, a plurality of through holes are formed in the shell, and the diameter of the through holes is smaller than that of the chlorine dioxide disinfectant. According to the invisible mask with the virus killing function, bacteria and the like can be killed invisibly, and the problems that a common mask has a binding feeling, easily hurts the parts such as ears and the like, covers the mouth and the nose after being worn, and easily brings breathing discomfort to people can be solved.