1009 results about "Bacterial virus" patented technology

The present invention is directed to chitosan-derivative compounds and structures, methods of making chitosan-derivative compounds and methods for controlling, inhibiting and enhancing microbial populations in a variety of environments. The present invention is also directed to the control, inhibition and enhancement of microbial populations in animals, particularly humans. The microbial populations include bacteria, viruses and other pathogens where control of microbial populations are a necessity. The chitosan-derivative compounds of the present invention include chitosan-arginine compounds, related chitosan-L / D unnatural amino acid compounds, chitosan-acid amine compounds, chitosan-L / D natural amino acid derivative compounds, co-derivatives of the chitosan-derivative compounds, salts of the chitosan derivative compounds, and chitosan-guanidine compounds.

A method for treating a bacterial, viral, fungal, or vector-induced disease state. A therapeutically effective dose of a metal substance is delivered to the body of a potentially infected organism using a delivery methodology selected from the group consisting of syringes, auto-injectors, pricking devices, buccal embedding, transdermal patches, needle transdermal patches, aerosol inhalers, ingestible dissolvable capsules, encapsulated boluses, needle encapsulated boluses, and electrode catheterization methodologies. The metal substance is selected from the group consisting of silver, gold, copper, zinc, selenium, platinum, and their ions, alloys, salts, and combinations thereof. Preferably, an electrical current is introduced substantially in the course of utilizing the delivery methodology. The electrical current is preferably substantially varied over time, and is still more preferably a reversing electrical current.

Methods are disclosed for the capture, detection, separation, isolation and quantification of contaminants in a starting material. Also disclosed are competitive assay methods for the detection and quantification of contaminants in a starting material. Kits for use with the method are disclosed as well. A system for capturing, separating and / or concentrating contaminants from a material is also presented. The system captures, separates and / or concentrates contaminants such as bacteria, viruses, other microorganisms, and / or larger items, such as insects, from a variety of materials, such as food, and environmental and clinical materials. In general, the system uses a rotating magnetic field to mix the material with magnetic particles to capture the target contaminants, and a fixed magnetic field to separate and concentrate the captured target contaminants.

The invention discloses a blood metagenome sequencing data analysis method and device and an application thereof. The blood metagenome sequencing data analysis method comprises a data quality controlstatistics and splitting step, a humanized sequence removal step, a plasmid sequence removal and internal reference comparison step, a pathogen genome sequence library comparison step and a pathogen parameter annotation step. The invention provides a blood flow infection detection device based on a blood metagenome sequencing data analysis method. According to the method and device provided by theinvention, the free nucleic acid sequences in blood are detected through a metagenome sequencing method, a bioinformatics analysis method is combined, more than 8,000 pathogenic microorganisms such as bacteria, viruses, fungi and parasites possibly existing in a blood flow infection patient body are detected at a time, and a detection result can be obtained within 24 hours at the soonest. The speed, the sensitivity, the accuracy and the efficiency of blood flow infection detection are greatly improved.

The present invention is directed to compositions and methods of treating bacterial, viral, fungal diseases; inflammation or inflammatory-related disorders; pain; and skin conditions. The composition comprises an organic solvent extract, which is prepared by the method comprising the steps of: (a) mixing methionine with water, (b) adding an aqueous hypochlorite solution to the methionine solution and mixing, (c) adding a water-immiscible organic solvent to (b) and mixing, and (d) separating the organic solvent phase from the water phase to obtain the organic solvent extract.

The invention relates to a process for preparing antiviral or antibiotic essence for the prevention and treatment of bacterial and virus mixed infectious diseases of livestock, fowl and aquatic animals, which consists of mixing Chinese herbs of Bupleurum root, rhubarb horsetails, Coptis chinensis, baikal skullcap root, Chinese angelica root, clerodendroa cyrtophyllum and cordate houttuynia, lixiviating with 80-90% alcoholic solution, charging one or more antiviral or antibiotic elements.

An integrated, self-contained hand sanitizer station is provided by this invention. The enclosure of the station may be located in a public venue, and conveniently dispenses wet wipe towelettes for people to clean their hands with a trash receptacle contained within the station for ready disposal of the towelettes by the patrons after their use. By making a good hand hygiene available to customers, a merchant or public authority can help to reduce germs, viruses, and bacteria that can otherwise cause the spread of infectious illnesses.

The invention provides a method for controlling the password input based on eye-gaze tracking, specifically comprising the following steps of: (1) preprocessing face images and extracting eye characteristic parameters: detecting a face according to face structure characteristics, and extracting the eye characteristic parameters in a face area according with the face structure characteristics; (2)estimating the current fixation point position: realizing the estimation from the eye characteristic parameters to the current fixation point position by using double light source eye-gaze tracking based on similar triangles; and (3) controlling a password input operation according to the fixation point position: controlling the password input operation by utilizing a time threshold and sound feedback according to the fixation point position. The invention can effectively prevent user password from being stolen, avoids the cross infection among different individuals by residual bacterial virus on a keyboard because the password is not inputted through the keyboard and has the characteristics of simpleness, convenience and higher safety.

The invention relates to an air purifying material and a preparation method thereof. The air purifying material is formed by mixing 30 to 50 percent of polar tourmaline powder, 10 to 30 percent of carbon nanometer tubes, 25 to 35 percent of zeolite powder and 15 to 30 percent of metal nanometer powder encapsulated with titanium dioxide. By utilizing the zeolite and the metal nanometer powder encapsulated with titanium dioxide which have the photocatalitic action and can enhance the dispersing property of tourmaline negative ions in a local area and utilizing the carbon nanometer tubes which have large specific surface and strong absorbing capacity, thereby the generated air negative ions have high concentration. The air purifying material can effectively absorb harmful gases, air foreign flavor and smoke, fully plays the role of negative oxygen ions in the restrain and the elimination of bacterial viruses, and can be widely applied to purifying the indoor air and improving the air quality of rooms and automobiles.

The invention relates to a special descaling sterilization cleaning agent for an air conditioner and a preparation method thereof. The cleaning agent comprises the following components in percentage by weight: 9 to 15 percent of inorganic acid, 3 to 5 percent of organic acid, 0.5 to 1 percent of bactericide, 1 to 1.5 percent of surfactant, 5 to 8 percent of water-soluble co-solvent, 0.3 to 1 percent of thickener and 68.5 to 81.2 percent of water. The acting mechanism of the cleaning agent is simple and scientific; and the bactericide, the surfactant and the co-solvent are dissolved together by using the scientific formula and the method so that the solution product is clear. The product can be used at normal temperature, is suitable for spraying or soaking cleaning, and can quickly remove scale, rust and greasy dirt and kill various harmful bacteria and viruses when being used for treating in 1 to 3 minutes. The product has wide source and easy acquisition of raw materials and low cost, and is suitable for large-scale industrialized production.

An integrated, self-contained hand sanitizer station is provided by this invention. The enclosure of the station may be located in a public venue, and conveniently dispenses wet wipe towelettes for people to clean their hands without resort to soap and water. A trash receptacle contained within the station enables ready disposal of the towelettes by the patrons after their use. By making a good hand hygiene available to customers, a merchant or public authority can help to reduce germs, viruses, and bacteria that can otherwise cause the spread of infectious illnesses.

An ionic oxidation refreshing system for refreshing odorized items, comprising an enclosure to contact the odorized items; an ionizing stage mechanism that produces an ionized ozone gas mixture inside of the enclosure, killing germs, including odor-causing bacteria, viruses, molds, and fungus; and a filtering stage mechanism that neutralizes and filters out any toxic by-products including one or more of ozone, nitric acid, aldehydes, and VOCs resulting from surface oxidation of the odorized items by the ionized ozone gas mixture.

The invention relates to a processing method for fermenting straws in a dry-process and wet-process combined way, which can realize dry-process and wet-process combined fermentation treatment of straw garbage through a straw pre-softening step, a solid-liquid primary fermentation step, a dry-process aerobic digestion and decomposition step, a wet-process anaerobic digestion step and a desulfurization and drying step. By means of the method disclosed by the invention, kitchen garbage is subjected to resource treatment safely and effectively; the harmless treatment is realized; the treatment process is free from pollution; bacterial virus can be prevented from spreading; and the method is an environment-friendly straw garbage treatment method, has good economical efficiency and is capable of realizing virtuous ecological cycle.

The invention relates to a relaxation time immunosensing analysis method based on magnetic separation. The method comprises the following steps: selecting two magnetic beads (one can be quickly separated and the other cannot be separated) different in saturated magnetization intensity and remarkably different in separation speed in the same magnetic field, so that the magnetic beads can be separated in the magnetic field; coupling the magnetic beads to an antibody used for identifying different sites of the same target object respectively to prepare immunomagnetic beads; producing an immunoreaction of the immunomagnetic beads and a to-be-detected sample; performing magnetic separation on a mixed system, measuring transverse relaxation time for supernatant liquor subjected to magnetic separation, and determining the concentration of biomacromolecules in the to-be-detected sample according to change of the transverse relaxation time. The immunomagnetic beads different in saturated magnetization intensity are different in separation speed in the same magnetic field, the magnetic separation is combined with magnetic relaxation time analysis, the reaction time only needs 30 minutes, and the method can be used for quickly detecting bacteria, viruses and proteins and has a very good application prospect in an aspect of biomarker detection.

A fluid cleaning medium for removing chlorine, organic and inorganic pollutants, heavy metals, ions, particles and bacteria from fluid is composed of a pre-filtering layer, an immobilized layer and an adsorptive filter layer. It features large effective area, low pressure loss and compact structure. Its preparing process is also disclosed.

The invention provides compositions and methods for treating or preventing the spread of infectious disease through topical or cutaneous contact with a formulation or article containing an organotellurium compound, or an inorganic or organic selenium compound, or formulation thereof, capable of generating superoxide radicals in the presence of an agent of infectious disease such as bacteria, viruses, fungi and protozoa.

The invention relates to nanoliposome human papillomavirus (HPV) resistant and gynecological inflammation pathogen resistant specific complex IgY and a combined preparation for the same. Laying poultry is preferred to respectively prepare laying poultry for immunity of tumor somatic cells, viral protein complex antigens, gene recombination protein antigens and bacterial virus complex antigens; and human papillomavirus resistant special IgY and gynecological inflammation pathogen resistant specific IgY undergo affinity chromatography and purification and are converted into nanoliposomes, and then the nanoliposome special complex IgY is prepared. The nanoliposome human papillomavirus (HPV) resistant and gynecological inflammation pathogen resistant specific complex IgY and the combined preparation for the same have the advantages that: the nanoliposome technology is applied to increase the infiltration capacity and the prolongation effect and improve the curative effect. The nanoliposome human papillomavirus (HPV) resistant and gynecological inflammation pathogen resistant specific complex IgY and the combined preparation for the same can be prepared into various vaginal spraying agents, other spraying agents, lotion, gel, capsules, suppository, vaginal membranes, tablets, effervescent tablets, ointment, cream and so on. The nanoliposome complex IgY can infiltrate into a vagina mucosa to effectively remove HPV viruses and gynecological inflammation pathogens which are absorbed on the vaginal surface layer and in the vagina mucosa, is absorbed through the vagina mucosa and enters into the body to give play to the functions of prevention and treatment, and also can effectively prevent recrudescence.

The invention discloses a high-dust holding capacity and high-efficiency composite electrostatic air purification device, which sequentially comprises a primary filtering screen, a carbon brush charge region, an electrostatic dust removal region, an air filter and a dust hopper, wherein a differential pressure transducer is arranged at the two ends of the air filter; a material level sensor is arranged in the dust hopper. According to the composite electrostatic air purification device, charged particles are collected by the electrostatic dust removal region, so that the air filter is protected, and the service life of the air filter is prolonged; the dust holding capacity of the air filter is reduced, pressure drop is reduced, and labor is saved; the exposure time of air, dust and particles on the air filter is reduced, and secondary pollution to the air caused by gas pollutants and bacterial viruses in a particle filtering process is reduced; the filtering efficiency of the electrostatic dust removal region is insensitive to blast volume changes, and the influence of proper increase of the blast volume to the overall dust removal efficiency of the device is limited, so that the purification device is suitable for blast volume variable buildings.

The invention discloses an antiepidemic treatment method and system. The method comprises the following steps that S1, the whole bodies of personnel entering a public place are disinfected through whole-body disinfectant treatment and air shower treatment; and S2, indoor environment air is forced to be internally circulated through one or the combination of a top air convection system, a middle air circulating system, a movable air treatment system and an air conditioner air internal circulating system, and filtering and disinfecting are carried out. The system comprises a front-mounted antiepidemic channel arranged on an entrance of the public place and an air circulating system arranged in the indoor environment of the public place. The front-mounted antiepidemic channel is one or the combination of a whole-body disinfecting room and an air shower room, and the air circulating system is one of a top air convection device, a middle air circulating device, a movable air treatment device and an air conditioner air treatment device or the combination of more of the top air convection device, the middle air circulating device, the movable air treatment device and the air conditioner air treatment device. According to the antiepidemic treatment method and system, the probability that bacterial viruses are spread in the public place can be greatly reduced.

A device for the detection of micro particles that can be marked by probes or antibodies capable of being detected by radiation has a filter, a supply system, and a detection system. Fluid to be examined is passed over a filter to filter out the micro particles and to perform the marking steps by supplying corresponding marking substances to the filter.

The present invention discloses a composition and method of providing ionic forms or compounds of any combination of three metals to produce a product that can be used as a antimicrobial as defined by the U.S. Environmental Protection Agency (EPA) such as a hard surface disinfectant and as a foliar spray or water treatment for the control of various diseases in garden row, field and tree crops, on hard surface areas such as equipment from infected fields or in hospitals, homes, etc. as well as against a wide range of human, plant and animal diseases. Additionally, the composition of the present invention is able to be used to coat and otherwise treat and disinfect food products such as but not limited to fish and shellfish, meat, milk, poultry, eggs and irrigated crops (both food and nonfood crops) as well as non food products as defined in the EPA exemption from tolerance for copper and copper products. The composition may include inerts such as surfactants, detergents and buffers to adjust the pH. The composition remains soluble in water and is useful efficacious against the spread of bacteria, viruses and fungi and other pathogens within a source of water such as a reservoir or pool. Alternatively, the composition may be in aerosolized, misted, vaporized, fogged, humidified forms to produce micronized particles which are able to remain in suspension in the air for long periods of time in order to act on air-borne fungal spores and / or pathogens.

The invention relates to a multifunctional cleaning robot for ground washing and disinfecting. The multifunctional cleaning robot comprises: a robot bottom plate and a main frame; and an intelligent ground washing device used for sensing ground pressure and washing the ground; the autonomous disinfecting device that comprises a liquid storage tank, a water pump and an atomizing nozzle which are sequentially connected through a pipeline, and is used for realizing airspace spraying of liquid; the ground walking device that comprises a crawler chassis, crawler wheels installed on the crawler chassis, a crawler arranged on the outer sides of the crawler wheels in a sleeving mode and a plurality of swing assemblies arranged side by side to achieve swing walking; an energy supply and storage device that is used for supplying power to the whole robot; and the monitoring control device that is used for realizing automatic control of ground washing, disinfection and walking. Compared with the prior art, the invention combines the functions of ground cleaning, space disinfection and sterilization, independent and intelligent execution of intelligent ground washing, automatic disinfection andthe like, and realizes self-adaptive environment cleaning on a polluted area in a targeted manner, so that propagation and diffusion of pollutants such as bacteria and viruses are effectively avoided, and the self-adaptive environment cleaning system undertakes heavy environment cleaning work.

Belonging to the technical field of boar semen dilution, the invention relates to a boar antiviral long-acting semen diluent formula and a preparation method. The boar semen diluent comprises: alpha-D-glucopyranose powder, fructose, trisodium citrate dihydrate, ethylenediamine tetraacetic acid disodium, sodium bicarbonate, polyvinyl alcohol, trishydroxymethylaminomethane, inositol, vitamin C, arginine, a radix isatidis injection, a 5% ceftiofur sodium injection, and a 5% Ribavirin injection. The preparation method includes: dissolving all the components in distilled water, mixing the components evenly, and conducting sterilization to obtain the boar semen diluents. The formula involves rich nutrients, antibacterial Chinese and western medicine components and antibacterial components, thus ensuring normal sperm metabolism. After certain period of time at the lower limit of storage temperature, the effects of nutrition and sperm shock prevention can be realized, and the invasion of external bacterial viruses in an artificial insemination process can be avoided.

This invention discloses a nanometer immune magnetic particle process and its application. Its nanometer particle is to cover dextran in the surface of the nanometer degree of Fe#-[3] O#-[4]. The dextran is connected with the characteristics antibody. The following steps process the particle: first to process the dextran nanometer particle; second to process the nanometer immune magnetic particle. The nanometer immune magnetic particle can be used in isolation bacteria, virus, parasite, and cell and biological molecule.

An apparatus for use in an assay to be conducted upon a fluid sample suspected of containing an analyte of interest, comprises a vessel for receiving a sample, and an element for capturing an analyte of interest. The element is insertable into the vessel for the purposes of the assay, and is coated on at least one surface with a specific binding partner for the analyte of interest. The element further having on a surface remote from the coated surface, structure adapted for manipulating the element for convenient analysis, whereby it is possible to detect and quantify microorganisms, particularly assay for infective agents such as bacteria, and viral particles and prions, or other particles that may be associated with a disease state, especially in humans.

The invention discloses an air purifier through a photocatalyst ultraviolet hydroxyl radical generator and a multiple-filtration system. Firstly, indoor air enters the photocatalyst ultraviolet hydroxyl radical generator through a coarse filtering film; water vapor in the air is made to rapidly generate a large quantity of hydroxyl radicals with extremely strong oxidation through ultraviolet rays with specific wavelength under the catalyzing action of nano-TiO2; the hydroxyl radicals can rapidly kill bacteria, viruses and mould in the air to achieve oxidation decomposition of volatile organic compounds in the air and can also achieve oxidation decomposition of other pollutants generated by natural and human factors, such as methane, nitrogen monoxide, hydrogen sulfide, ozone and other toxic and harmful gases (SO2, O3 and NH3); then the air treated in the former step is subjected to deep filtering through a nanometer cellulose acetate membrane, and residual bodies of pathogens such as tiny bacteria, viruses, mould and dust mite and particulate matter of PM2.5 and the like are adsorbed and filtered out.

Human and animal infections are treated using extracorporeal acoustic pressure shock waves that destroy harmful pathogens as bacteria, viruses, funguses and other micro-organisms to disinfect infected tissue.

The invention discloses an efficient medical instrument cleaning and disinfection method and a disinfection device. The efficient medical instrument cleaning and disinfection method comprises the following steps of S1, placing a to-be-cleaned medical instrument on a medical instrument fixing and placing mechanism, and spraying and washing the to-be-cleaned medical instrument with sterile water; S2, soaking the medical instrument washed in the step S1 in a disinfectant for washing through ultrasonic waves; S3, washing with sterile water after soaking is finished; S4, atomizing a biological enzyme cleaning agent after washing in the step S3, and placing the medical instrument in the atomized biological enzyme cleaning agent; S5, carrying out drying and disinfection on the medical instrumentthrough plasma gas; and S6, carrying out irradiation treatment by using a low-voltage high-intensity ultraviolet lamp. According to the method, substances such as bacteria, virus, blood, protein, saccharides and the like on the medical instrument are fully degraded, and complete cleaning and disinfection of the medical instrument are realized; and pollutants degraded in the disinfectant are degraded again in the disinfectant soaking process, and pollution to the environment due to discharge of disinfection waste liquid is avoided.