The present disclosure relates to a riboflavin photochemical treatment (RPT)-based inactivation method of pathogens in a biological liquid sample. Aiming at the problems existing in the current riboflavin-based pathogen inactivation methods, a technical solution of the present disclosure is to provide an RPT-based inactivation method of pathogens in a biological liquid sample, including the following steps: adding riboflavin to a biological liquid sample to be treated, and conducting irradiation on the biological liquid sample with light; where the light is narrow-spectrum ultraviolet (UV) light with a wavelength of 360 nm to 370 nm and/or 390 nm to 400 nm. In the present disclosure, parameters such as an irradiation time, an irradiation intensity, and a riboflavin concentration are further optimized. The inactivation method can achieve an excellent pathogen inactivation effect, and has little damage to other components in the biological liquid sample.

The present invention involves a novel method for treatment of coronavirus infection, including SARS-COV-2. The method comprises administering stannous protoporphyrin and/or cyanocobalamin to a human patient at risk for developing complications from coronavirus infection. The method is particularly useful where a patient has been diagnosed with coronavirus infection or has been exposed to coronavirus but has not developed symptoms of coronavirus infection.

An apparatus for converting a toxic gas to benign substances comprises a housing characterized with multi-stages including a first stage, a second stage, a third stage and a fourth stage coupled to one another in sequence, wherein the first stage comprises a catalytic system configured to convert the toxic gas into its derivatives; the second stage comprises a carbonaceous fibrous material adapted to capture the remaining toxic gas and the derivatives; the third stage comprises at least one oxidizer to oxidize the remaining toxic gas to benign substances including CO.sub.2 and water; and the fourth stage comprises a scrubber configured to remove all of volatile organic compounds or water molecules generated as part of the first and third stages.

The door handle sanitizer is an electromechanical device. The door handle sanitizer is configured for use with a door. The door further comprises a door handle. The door handle sanitizer sprays a disinfecting solution on the door handle such that the disinfecting solution disinfects the door handle of pathogens, including viruses such as COVID-19. The door handle sanitizer comprises a track structure and a disinfection structure. The track structure attaches the disinfection structure to the door. The track structure is a flexible structure that forms a path that guides the disinfection structure around the door handle. The disinfection structure moves along the path formed by the track structure such that the disinfection structure has access to all surfaces of the door handle. The disinfection structure discharges the disinfection solution on the door handle.

A composition for reducing unpleasant odor, the composition includes betaine; musk; and N-Soya-N-ethyl morpholinium ethosulfate.

The invention provides a method of microbial control in water comprising adding to the water one or more bromine-based biocide(s) and cis-2-decenoic acid or a salt thereof. Compositions in the form of liquid concentrates comprising bromine-based biocides and cis-2-decenoic acid or a salt thereof are also described.

A method of inactivating an enveloped ssRNA virus, such as SARS-CoV-2. The method involves contacting the enveloped ssRNA virus with an antiviral polyelectrolyte compound and/or a conjugated aromatic compound effective to inactivate the virus. The disclosure also provides a method of reducing the period of viability of enveloped ssRNA virus, such as SARS-CoV-2, on personal protective equipment, in air, in water, and/or on surfaces that have come into contact with the virus.

In one embodiment, the present application relates to methods and materials for weed control of a field of a crop plant using a cellulose biosynthesis inhibitor selected from the group consisting of ES20 and ES20-1 to ES20-9 of FIG. 1A. In another embodiment, the present disclosure relates to a method for treatment or prevention of an infection through inhibition of biofilm formation of microorganisms comprising the step of applying a therapeutic effective amount of a cellulose biosynthesis inhibitor selected from the group consisting of ES20 and ES20-1˜ES20-9 of FIG. 1A, or a salt thereof, in combination with one or more other commonly used antibiotics. A composition matter comprising said compounds and methods of use are within the scope of the present invention.

An object of the present invention is to provide a composition having excellent antiviral activity. Another object of the present invention is to provide a spray and a wiper that use the above composition.

An alkaline composition according to an embodiment of the present invention contains a compound having an amino group and at least one kind of functional group selected from the group consisting of an acidic group, a hydroxyl group, and a phenyl group and having a molecular weight equal to or higher than 85, and a solvent containing an alcohol.

The present disclosure provides a sterilization exhaust gas treatment system, which may include a gas liquefaction recovery system, a pressure swing adsorption recovery system, a reaction system, a temperature swing adsorption recovery system, a hydration system, a recovery and storage system, and a wastewater treatment system. The gas liquefaction recovery system, the pressure swing adsorption recovery system, the reaction system, the temperature swing adsorption recovery system, and the hydration system may be fluidly connected in sequence through first connecting pipes. The gas liquefaction recovery system, the pressure swing adsorption recovery system, and the temperature swing adsorption recovery system may each be fluidly connected to the recovery and storage system through second connecting pipes. The hydration system may be fluidly connected to the wastewater treatment system through wastewater pipes. The present disclosure also provides a method for treating ethylene oxide-containing sterilization exhaust gas using the sterilization exhaust gas treatment system.