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The Mendeleev University of Chemical Technology in Russia has synthesized a new material using chitosan and alginate biopolymers and silver nanoparticles, which not only can effectively stop bleeding, but also has obvious antibacterial activity
.
Relevant research results were recently published in "International Polymer Materials and Polymer Biomaterials"
.
? Russian researchers proposed a new hemostatic material containing three components, alginate, chitosan (respectively extracted from the shells of algae and crustaceans) and silver nanoparticles
.
Silver nanoparticles are not obtained by standard chemical methods, but by biosynthetic methods, made from mushrooms grown in an environment rich in silver ions
.
? "The hydrogel made on the basis of alginate is a water-insoluble sponge that can absorb and release a large amount of liquid
.
" said Maria Gortyenko, the first author of the paper and an associate professor at Mendeleev University of Chemical Technology.
"To make these sponges insoluble in water, we need to use a cross-linking agent to make their structure cross-linked.
The cross-linking agent is usually a variety of toxic chemical agents.
We replaced
it with chitosan .
It combines with alginate to form a gel.
It can also remain stable when immersed in the solution
.
In addition, chitosan has an antibacterial effect, which can promote the combination of blood components and make wounds heal
.
Finally, silver nanoparticles can enhance the antibacterial effect of the gel
.
In short, we have obtained a biological phase A hemostatic material with high capacity and significant antibacterial effect
.
" Maria Gortyenko said that the synthetic gel looks like a 5 cm thick porous sponge, which can be used for open wounds to quickly stop bleeding and prevent infection
.
In addition, it can absorb a large amount of liquid flowing out of the wound while maintaining its mechanical stability.
This sponge can be easily removed when the surgeon needs to perform surgery and suture the wound
.
.
Relevant research results were recently published in "International Polymer Materials and Polymer Biomaterials"
.
? Russian researchers proposed a new hemostatic material containing three components, alginate, chitosan (respectively extracted from the shells of algae and crustaceans) and silver nanoparticles
.
Silver nanoparticles are not obtained by standard chemical methods, but by biosynthetic methods, made from mushrooms grown in an environment rich in silver ions
.
? "The hydrogel made on the basis of alginate is a water-insoluble sponge that can absorb and release a large amount of liquid
.
" said Maria Gortyenko, the first author of the paper and an associate professor at Mendeleev University of Chemical Technology.
"To make these sponges insoluble in water, we need to use a cross-linking agent to make their structure cross-linked.
The cross-linking agent is usually a variety of toxic chemical agents.
We replaced
it with chitosan .
It combines with alginate to form a gel.
It can also remain stable when immersed in the solution
.
In addition, chitosan has an antibacterial effect, which can promote the combination of blood components and make wounds heal
.
Finally, silver nanoparticles can enhance the antibacterial effect of the gel
.
In short, we have obtained a biological phase A hemostatic material with high capacity and significant antibacterial effect
.
" Maria Gortyenko said that the synthetic gel looks like a 5 cm thick porous sponge, which can be used for open wounds to quickly stop bleeding and prevent infection
.
In addition, it can absorb a large amount of liquid flowing out of the wound while maintaining its mechanical stability.
This sponge can be easily removed when the surgeon needs to perform surgery and suture the wound
.
