Scientists have developed aerogels to stop massive bleeding.

By | September 24, 2020
Scientists have developed aerogels to stop massive bleeding.

Russian scientists have developed aerogels capable of quickly stopping massive bleeding, animal tests have shown that the particles of aerogel stop the bleeding in 2-3 minutes, the press service of the Mendeleev RCTU
“Scientists from Mendeleev RCTU have developed aerogels based on chitosan biopolymer to quickly stop massive bleeding. These are highly porous particles that can be injected locally into wounds: they swell, absorbing erythrocytes and other blood components, and as a result, a dense blood clot is formed”, – says the report.
The scientists conducted tests on laboratory animals, which showed that the particles of aerogels stop bleeding in 2-3 minutes, in addition, they have no characteristic defects or side effects of direct analogs on the market, the press service specified.
Heavy blood loss is the main cause of death in injuries, stressed the institution. Blood can be stopped in various ways, including dressing, but there may be cases of massive pulsating bleeding, during which a person can lose a critical amount of blood in a matter of minutes, and the usual ways to deal with them can not cope, the press service explained.

Now such bleeding stops mainly with the help of porous materials based on zeolites, but they can leave burns on the body, so scientists are looking for new hemostatic materials that will be effective and safe, said the press service.
“The development of Russian scientists is based on chitosan, a popular biopolymer, which is obtained from shells of crustaceans. It has high biocompatibility, and therefore chitosan is used in prosthetic coverings (including artificial heart valves), targeted drug delivery systems, bone tissue reconstruction frameworks, and other biomedical purposes. And in the new work scientists have made on the basis of chitosan aerogel – the so-called hard, highly porous materials, which are 99% composed of air. They have such a large total area of pores that if all of them could be rolled out on one plane, then 10 grams of aerogel would be enough for one soccer field,” the press service said.