Medicinal nano silver paste and preparation method thereof

Abstract

The invention discloses a formula and preparation method of high-purity medicinal nano silver paste. According to the formula and preparation method of the high-purity medicinal nano silver paste, specific high-purity spherical ultrafine nano silver powder and the medicinal nano silver paste are selected. According to the indexes of the specific high-purity spherical ultrafine nano silver powder, the silver purity is larger than or equal to 99.99 percent, the silver shape is spherical, and the silver particle size ranges from 0.1 nm to 10 nm. According to the formula of the medicinal nano silver paste, the medicinal nano silver paste comprises 1 g / L to 2 g / L glucose, 1 g / L to 2 g / L nano-silver, 996 g / L to 998 g / L pure water. The preparation method of the medicinal nano silver paste comprises dispersing, stirring, atomizing, collecting and liquid taking.

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 in...

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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