A disinfectant composition that is capable of inactivating non-enveloped viruses as well as other microorganisms, such as gram negative and gram positive bacteria, fungi, parasites, enveloped viruses, etc., is provided. Through selective control over the nature of the acid(s) employed and the overall pH level, the present inventors have discovered that the composition can achieve rapid antiviral efficacy, particularly against non-enveloped viruses. Once applied to a surface (e.g., hard surface), the disinfectant composition forms a film that remains capable of providing residual antiviral activity. Notably, the present inventors have discovered that the use of a vinylpyrrolidone copolymer in combination with a polyquaternary ammonium polymer and cationic surfactant can have a synergistic effect on the stability of the film such that it can also achieve long-term, residual antiviral activity.

A disinfectant composition that is capable of inactivating non-enveloped viruses as well as other microorganisms, such as gram negative and gram positive bacteria, fungi, parasites, enveloped viruses, etc., is provided. Through selective control over the nature of the acid(s) employed and the overall pH level, the present inventors have discovered that the composition can achieve rapid antiviral efficacy, particularly against non-enveloped viruses. Once applied to a surface (e.g., hard surface), the disinfectant composition forms a film that remains capable of providing residual antiviral activity. Notably, the present inventors have discovered that the use of a vinylpyrrolidone copolymer in combination with a polyquaternary ammonium polymer and cationic surfactant can have a synergistic effect on the stability of the film such that it can also achieve long-term, residual antiviral activity.

The present invention provides a branched poly(amino acid) antimicrobial agent, comprising a branched poly(amino acid); the branched poly(amino acid) is obtained by the homopolymerization of one amino acid unit, or is obtained by the copolymerization of two or more amino acid units; the amino acid unit has a structure shown by Formula I. The present invention uses the amino acid as raw material, is non-toxic, has no side effects, and is a green and environmentally friendly new antimicrobial agent, and accessible to the users. The branched structure of the poly(amino acid) results in that such material has many active functional groups, may be further modified, has good biocompatibility, and will not develop drug resistance during the long-term use of this antimicrobial agent.

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Compositions and method for producing a systemic acquired response (SAR) in plants. The resulting SAR may improve plant health and corresponding yields. In an example, the composition comprises a base solution and an effective amount of chitosan (Aspergillus niger) (e.g., in an amount of about 0.04 wt % of the composition). The base solution may include organic material, vitamin K compound, and nitrogen. Additionally or alternatively, the composition may include adding to the composition at least one of potassium, phosphorus, or an acidic organic polymer. Still further, the composition may include a micronutrient comprising at least one of boron, calcium, copper, iron, manganese, sulfur, silicon, or zinc. The composition may be applied as a foliar spray or used to irrigate the plant.

Compositions and method for producing a systemic acquired response (SAR) in plants. The resulting SAR may improve plant health and corresponding yields. In an example, the composition comprises a base solution and an effective amount of chitosan (Aspergillus niger) (e.g., in an amount of about 0.04 wt % of the composition). The base solution may include organic material, vitamin K compound, and nitrogen. Additionally or alternatively, the composition may include adding to the composition at least one of potassium, phosphorus, or an acidic organic polymer. Still further, the composition may include a micronutrient comprising at least one of boron, calcium, copper, iron, manganese, sulfur, silicon, or zinc. The composition may be applied as a foliar spray or used to irrigate the plant.

Compositions and methods for the disinfection of surfaces are provided. The compositions include a C.sub.1-6 alcohol, a primary enhancer, and an acidifying agent. The disinfectant composition is characterized by a pH of less than 3. Broad spectrum efficacy is achieved, and synergistic activity is exhibited against C. difficile spores.

Compositions and methods for the disinfection of surfaces are provided. The compositions include a C.sub.1-6 alcohol, a primary enhancer, and an acidifying agent. The disinfectant composition is characterized by a pH of less than 3. Broad spectrum efficacy is achieved, and synergistic activity is exhibited against C. difficile spores.

The present disclosure relates to an ovitrap and a method of controlling mosquito populations. The ovitrap includes a container, a cover, and a dividing mechanism for dividing the container into two regions, which in use are filled with water, and which communicate via an opening such that a first volume below the dividing mechanism defines a larvae trapping region, and a second volume above the dividing mechanism defines an egg receiving region A light source having a cool, white spectra with two peaks is mounted above the container and positioned to direct light downwards at a water surface, such that the larvae move in a direction away from the light source, from the second volume into the first volume below the dividing mechanism via the opening. A gating mechanism is operatively linked to the light source for opening and closing the opening.

The present disclosure relates to an ovitrap and a method of controlling mosquito populations. The ovitrap includes a container, a cover, and a dividing mechanism for dividing the container into two regions, which in use are filled with water, and which communicate via an opening such that a first volume below the dividing mechanism defines a larvae trapping region, and a second volume above the dividing mechanism defines an egg receiving region A light source having a cool, white spectra with two peaks is mounted above the container and positioned to direct light downwards at a water surface, such that the larvae move in a direction away from the light source, from the second volume into the first volume below the dividing mechanism via the opening. A gating mechanism is operatively linked to the light source for opening and closing the opening.

An antimicrobial composition including low molecular weight dendrimers of formula (1): ##STR00001## Q is an antimicrobial moiety in monomer or dendritic form, N is a nitrogen atom, L.sub.2 is a linker linking each Y.sub.1 molecular spacer to the nitrogen atom, Y.sub.1 is a molecular spacer spacing each antimicrobial moiety Q from the L.sub.2 linker, there are two or more chains of antimicrobial moieties and molecular spacers, X is a linker configured to covalently bond to surface functionalities of the substrate, and Y.sub.2 is a molecular spacer between the linker X and the nitrogen atom.