In brief

January 2016   Comments

Particles staunch internal bleeding at the source

Researchers at the University of British Columbia have created the first self-propelled particles capable of delivering coagulants against the flow of blood to treat severe internal bleeding. The particles, which take the form of a powder, are made up of calcium carbonate bonded to the clotting agents tranexamic acid and thrombin. The calcium carbonate particles release carbon dioxide gas, propelling the clotting agents against the blood flow to reach the source of the bleeding. The powder has proven effective in stopping internal bleeding in animals but requires further testing for human use.


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