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New hydrogel stanches blood flow fast, cheaply
A synthetic new gel made of water and the fibrous polymer acrylamide kick into gear the blood-clotting protein known as factor VII, thereby stanching blood flow from deep wounds in just minutes, report researchers from the University of Maryland in College Park.
"You just apply it to the surface of a wound," says Brendan Casey, a biomedical engineer at the university who began investigating polymeric hydrogels in 2007 and presented his latest findings from experiments on sheep at this week's American Chemical Society fall meeting.
Hydrogels are by no means novel, but many are made of biological … Read more
