59results about How to "Kill in time" patented technology

A multifunctional biologically active aquatic feed additive, which can be prepared according to the following process: (1) mix the materials; (2) add a small amount of 30-50°C warm water to the molasses to dissolve and mix, add complex bacteria and stir evenly, and place for 1 ~2 hours, then add remaining water to make composite bacteria solution; (3) add composite bacteria solution to the material and mix well, and naturally aerobic fermentation at room temperature for 50~60 hours; (4) dry at less than 60°C until Moisture ≤ 10%, crushed and packaged; the multifunctional biologically active aquatic feed additive provided by the invention has a probiotic content greater than 1012cfu / g, contains a large amount of chitooligosaccharides and seaweed oligosaccharides; contains a large amount of active small peptides; protease, lipase and amylase, etc. The production method has simple process, does not need special heat sterilization and fermentation equipment, has low energy consumption and short fermentation cycle.

The invention relates to an anti-cancer drug-loading nanofiber film and a preparation method thereof. The nanofiber film is composed of a loading drug and a substrate, wherein a photosensitizer and a chemotherapeutic drug in a molar ratio of 1:(1-2) are used as the loading drug of the nanofiber film; a biodegradable high molecular material is used as the substrate of the nanofiber film; and the total drug mass is 4% of the substrate mass. The preparation method comprises the steps of: (1) adding the chemotherapeutic drug to glacial acetic acid, heating to dissolve the drug to obtain a chemotherapeutic drug solution; adding the photosensitizer and the biodegradable high molecular material into an organic solvent, uniformly stirring, and then adding the chemotherapeutic drug solution to prepare a high polymer solution; and (2) carrying out electrostatic spinning on the high polymer solution, and volatilizing the organic solvent and the glacial acetic acid to obtain the anti-cancer drug-loading nanofiber film. The anti-cancer drug-loading nanofiber film can be used as a wound dressing at an operation wound for preventing infection, stopping bleeding and promoting healing of the operation wound; and the preparation method has the advantages of simplicity in operation, low cost, good drug slow-release performance and broad application prospect.