Silver nanoparticles, preparation method thereof and nano silver dressing

Abstract

The invention provides silver nanoparticles used for solving the problems that the existing hydrogel nano silver external patches or medical dressings have low adsorption capacities and the nano silver external patches or medical dressings have single function or complex components, thus easily causing user skin harms, heavy metal poisoning and drug allergy. The silver nanoparticles comprise the following components by weight percent: 90-98% of polysaccharide fibers, 0.5-6.5% of stabilizing agent and 0.03-3.5% of nano silver. The silver nanoparticles have the following beneficial effects: the silver nanoparticles are larger, have low moisture content, have higher absorbed amount of blood and fluid oozing from the wounds and can form a 2-3mm thick gel after absorbing the blood and fluid oozing from the wounds, thus not only preventing oozing fluid pollution and adhesion, isolating the external air and sources of infection and protecting the skins from friction or infection but also ensuring the silver nanoparticles to release slowly and ensuring the antibacterial and sterilization capabilities to be stronger and more lasting; and besides, the silver nanoparticles do not contain drug components, are nontoxic and harmless and can avoid user skin harms, heavy metal poisoning and drug allergy.

Description

technical field [0001] The invention relates to the technical field of medicine, in particular to a nano-silver particle, a preparation method thereof and a nano-silver dressing. Background technique [0002] With the in-depth study of the pathophysiology of the wound healing process, people's understanding of the wound healing process is becoming more and more profound, so that medical wound dressings are continuously improved and developed. Most of the products in the prior art have single functions or complex ingredients, which easily increase the risks of skin damage, heavy metal poisoning and drug allergic reactions for users. The antibacterial performance of nano silver in the prior art is very good, has been widely used in the field of medical technology, when nano silver is used as an antibacterial agent or dressing, one type is an external application paste or medical dressing containing medicinal ingredients, which has a certain effect on the wound surface. For he...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a nano-silver particle and its preparation method and a nano-silver dressing, which solves the problem of low adsorption capacity of the hydrogel nano-silver external patch or medical dressing used in the prior art, and solves the problem of low adsorption capacity in the prior art. The function of the nano-silver external patch or medical dressing used is too single or the composition of the formula is complex, which may easily cause skin damage to the user, heavy metal poisoning and allergic reactions to drugs.

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