A kind of medicinal nano-silver paste and preparation method thereof

Abstract

The invention discloses a formula and a preparation method of a high-purity medicinal nano-silver paste. The present invention includes the formulation and preparation method of selecting a specific high-purity spherical ultrafine nano-silver powder and pharmaceutical nano-silver paste, wherein the specific high-purity spherical ultra-fine nano-silver powder has the following indicators: silver purity: ≥99.99%, silver shape: spherical, silver particle size: 0.1~10nm. The formula of pharmaceutical nano silver paste: 1-2g / L glucose, 1-2g / L nano-silver, 996-998g / L pure water. The preparation method of the medicinal nano-silver slurry includes: dispersing, stirring, atomizing, collecting and taking liquid.

Description

technical field [0001] The invention relates to a medicinal nano-silver paste and a preparation method thereof. Background technique [0002] In recent years, silver has attracted widespread attention as a metal material with high biological safety and good stability. The broad-spectrum bactericidal effect of metallic silver has long been known. Silver ions and silver-containing compounds can kill or inhibit bacteria, viruses, algae and fungi. Silver has the effect of fighting diseases, so it is also called biophilic metal. Silver is harmless to normal human cells. [0003] With the emergence of nanotechnology, nanomaterials also exhibit many special physical and chemical properties due to their unique surface effects, small size effects, quantum size effects and macroscopic quantum tunneling effects, especially in mechanics, heat, magnetism, Optoelectronics, electronics, etc. show great differences from homogeneous bulk materials, which has aroused extensive research int...

AI Technical Summary

Problems solved by technology

In the preparation process, the usual physical methods (such as ball milling) are difficult to reach the nanoscale

However, the preparation of chemical methods has always been confusing for obtaining high-purity nano-powder products. Especially in the process of industrialization, the separation of various "acid radicals" and the removal of impurities are extremely difficult to achieve. In addition, there is also the influence of reducing agents.

Thereby limiting the application of nano-silver materials in various fields, especially in the fields of biology and medicine

[0010] On the other hand, currently in the Chinese market, nano-silver powder is mostly prepared by chemical methods, and various particle sizes and shapes are mixed. Its purity, performance, distribution accuracy, and stability are difficult to determine. The collection, storage, and Transportation and other technical research needs to be strengthened, the safety of biological and pharmaceutical applications is more difficult to guarantee, and the standard for pharmaceutical nano silver has yet to be formed

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