Nano silver antimicrobial solution and preparing method thereof

Abstract

The invention discloses a nano-silver antibacterial solution and a preparation method thereof and relates to an antibacterial solution, in particular to the antibacterial solution containing nano-metal silver particles and carboxymethyl chitosan and the preparation method thereof as well as provides a nano-silver antibacterial solution containing nano-metal silver particles and carboxymethyl chitosan and providing small particles, uniform distribution, good stability, strong anti-bacterial capacity and no toxic and side effects and a preparation method thereof. The nano-silver antibacterial solution is a deionized water solution containing nano-metal silver particles of 0.001-0.1 mol / L and the carboxymethyl chitosan, with the diameter of the nano-metal silver particle preferred to be 3-80nm. The deionized water solution containing nano-metal silver particles of 0.001-0.1 mol / L and the carboxymethyl chitosan is then added with hydrazine hydrate reductant with two times of silver ions molar concentration to be stirred and reacted to obtain the nano-silver antibacterial solution containing the nano-metal silver particles and carboxymethyl chitosan.

Description

technical field [0001] The invention relates to an antibacterial solution, in particular to an antibacterial solution containing nanometer metal silver particles and carboxymethyl chitosan and a preparation method thereof. Background technique [0002] In life, there are all kinds of harmful bacteria, which bring various diseases to people. With the improvement of people's living standards, more and more attention has been paid to health and hygiene, and antibacterial materials and their products have increasingly attracted people's attention. Silver has strong antibacterial ability and broad-spectrum bactericidal effect, and it will not accumulate in the human body to cause toxicity. It has been used as an antibacterial active material long ago. The antibacterial agent with silver as the antibacterial active ingredient is an ideal safe and environment-friendly antibacterial agent. In order to reduce the amount of precious metal silver and reduce costs, the silver series a...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of particle small, distribution in view of problems such as the instability that chitosan complex ion silver ion antibacterial solution exists, chitosan is not easy to dissolve and it is not easy to prepare nano-silver particles with chitosan as protective agent. Uniform, good stability, strong antibacterial ability and no toxic side effects, nano silver antibacterial solution containing nano metal silver particles and carboxymethyl chitosan and preparation method thereof