Provided are an alginate dialdehyde-functionalized material, an alginate dialdehyde-modified material, and preparation methods therefor. Further provided is use of the above materials and methods in the manufacture of antibacterial, antifungal, and antiviral protective products. Raw materials used and the preparation methods are simple, economical, environmentally friendly and easy to scale up, have high inhibitory activity against bacteria, fungi and viruses and have great application potential in the fields of biology, medicine, health, etc.

Disclosed herein are systems and methods for treating air.

An anti-bacterial composition for plants including garlic oil; cinnamon oil; thyme oil; oleic acid; and dimethyl sulfoxide.

An anti-bacterial composition for plants including garlic oil; cinnamon oil; thyme oil; oleic acid; and dimethyl sulfoxide.

Disclosed is a method for preparing an attapulgite-based pH-responsive antibacterial material, including: directly spraying a natural aldehyde-based antibacterial agent onto an attapulgite powder under stirring, and constantly stirring the attapulgite powder for 20-30 min; grinding the attapulgite powder in a ball mill for 30-60 min to obtain a ground attapulgite powder; placing the ground attapulgite powder in a stirred tank, and spraying a chitosan-citric acid aqueous solution onto the ground attapulgite powder; after spraying, constantly stirring the ground attapulgite powder for 30-120 min; and finally drying the ground attapulgite powder to obtain a dried attapulgite powder, sieving the dried attapulgite powder to obtain a sieved attapulgite powder, and packaging the sieved attapulgite powder to obtain the antibacterial material.

Disclosed is a method for preparing an attapulgite-based pH-responsive antibacterial material, including: directly spraying a natural aldehyde-based antibacterial agent onto an attapulgite powder under stirring, and constantly stirring the attapulgite powder for 20-30 min; grinding the attapulgite powder in a ball mill for 30-60 min to obtain a ground attapulgite powder; placing the ground attapulgite powder in a stirred tank, and spraying a chitosan-citric acid aqueous solution onto the ground attapulgite powder; after spraying, constantly stirring the ground attapulgite powder for 30-120 min; and finally drying the ground attapulgite powder to obtain a dried attapulgite powder, sieving the dried attapulgite powder to obtain a sieved attapulgite powder, and packaging the sieved attapulgite powder to obtain the antibacterial material.

The present invention relates to an antiviral composition. The antiviral composition of the invention is applied to textiles to make the textiles virus-resistant before they can be used. The antiviral composition includes an antiviral agent, one or more binding agents and a catalyst or a softener depending upon the utility of the antiviral composition.

Disclosed is a method for synthesizing an antimicrobial base. The method comprises treating a Silver salt in a reaction mixture. The method further comprises adding one or more reactants to the reaction mixture in a pre-defined ratio. Further, the method comprises heating the reaction mixture at a first temperature between 45° C. to 90° C. for a first period of 5 to 8 hours. Furthermore, the method comprises stabilizing the conversion by adding a ligand and a stabilizing agent. Subsequently, the method comprises digesting the reaction mixture at a second temperature between 45° C. to 65° C. for a period of 2 to 4 hours to form an end product. Finally, the method comprises filtering the reaction mixture. The sub-micron particle forms a dispersion containing the colloidal silver particles (Ag.sup.0), thereby forming the antimicrobial base.

The disclosure discloses application of nanosulfur in tomato fusarium wilt control, belonging to the technical field of novel pesticides. The application of the disclosure includes the following steps: preparing a nanosulfur solution from nanosulfur; and then soaking seeds in the nanosulfur solution or applying the nanosulfur solution onto tomato foliage, and continuing cultivation to obtain tomato plants. The nanosulfur has a particle size of 20-150 nm. The nanosulfur solution uses water as a solvent and has a concentration of 30-200 mg/L. According to the disclosure, after the tomato plants are treated with the nanosulfur by foliar spraying, the fresh weight of the above-ground part is 1.05 times or more that of the disease group, and the fresh weight of the underground part is 1.05 times or more that of the disease group, so that the incidence of tomato fusarium wilt is reduced by 8% or more. After the tomato plants are treated with the nanosulfur by seed soaking, the fresh weight of the above-ground part is 1.38 times or more that of the disease group, and the fresh weight of the underground part is 1.05 times or more that of the disease group, so that the incidence of tomato fusarium wilt is reduced by 20% or more.

The disclosure discloses application of nanosulfur in tomato fusarium wilt control, belonging to the technical field of novel pesticides. The application of the disclosure includes the following steps: preparing a nanosulfur solution from nanosulfur; and then soaking seeds in the nanosulfur solution or applying the nanosulfur solution onto tomato foliage, and continuing cultivation to obtain tomato plants. The nanosulfur has a particle size of 20-150 nm. The nanosulfur solution uses water as a solvent and has a concentration of 30-200 mg/L. According to the disclosure, after the tomato plants are treated with the nanosulfur by foliar spraying, the fresh weight of the above-ground part is 1.05 times or more that of the disease group, and the fresh weight of the underground part is 1.05 times or more that of the disease group, so that the incidence of tomato fusarium wilt is reduced by 8% or more. After the tomato plants are treated with the nanosulfur by seed soaking, the fresh weight of the above-ground part is 1.38 times or more that of the disease group, and the fresh weight of the underground part is 1.05 times or more that of the disease group, so that the incidence of tomato fusarium wilt is reduced by 20% or more.