Bandage that Promotes and Guides Vessel Formation

Recently, an intelligent smart bandage is developed by researchers at University of Illinois Urbana-Champaign that can promote angiogenesis and guide exactly where the vessels should go. It is built of layers of a hydrogel made of polyethylene glycol and methacrylic alginate. The bandage is porous and allows small molecules to leak through while directing the flow of larger molecules. Several experiments are conducted on the surface of a chicken embryo, revealing that the network of new blood vessels mirrors the patterns of the channels of the bandage. There are several potential applications for this intelligent bandage including directing the growth of blood vessels around a blocked artery and normalizing blood vessels that feed a tumor to improve the delivery of anticancer drugs and so on.









