"All kinds of networks want to rebuild, including bone, muscle or skin, and in desperate need of blood vessels. But one of the major challenges in creating networks of blood vessels is how to control the growth of new blood vessels and distance. Ability to memolakan functional blood vessels on a scale in living tissue is unprecedented, "said researchers from the University of Illinois, Hyunjoon Kong.
If other researchers had previously invested grower factor in the materials used in the wound to regenerate blood vessels, this new approach is the first time combines living cells in a bandage. These cells will remove grower factors in a way that is more sustainable than other methods.
In a report published journal Advanced Materials, researchers explain that the material is made of a layer of hydrogel dressings are made of polyethylene glycol and alginate methacrylate shaped like jelly.
These materials allow small molecules pass through channels and contains a variety of sizes to direct the flow of larger molecules. The bandage has been tested on the surface of chicken embryos.
"After a week, the bandage is removed and the tissue showed new blood vessels according to the pattern of lines on the bandage. This is the first demonstration that shows that blood vessels can be controlled by biomaterials," Kong said as quoted Scienceagogo.com, Tuesday (12/20/2011) .
0 comments:
Post a Comment