Smart Bandage Promotes and Guides Growth of Blood Vessels

by Dr. Trupti Shirole on  December 24, 2011 at 3:44 PM Medical Gadgets   - G J E 4
Researchers at University of Illinois Urbana- Champaign have developed a new smart bandage, called the 'microvascular stamp' which promotes angiogenesis (growth of new vessels from pre-existing vessels) while guiding exactly where the vessels should go.
 Smart Bandage Promotes and Guides Growth of Blood Vessels
Smart Bandage Promotes and Guides Growth of Blood Vessels

The 1cm bandage contains living cells, positioned in a defined pattern, that release growth factors around a wound and cause vessels to grow where intended. It is built of layers of a hydrogel made of polyethylene glycol (an FDA-approved polymer used in laxatives and pharmaceuticals) and methacrylic alginate (an edible, Jell-O-like material). The bandage is porous, allowing small molecules to leak through, and contains channels of various sizes to direct the flow of larger molecules, such as growth factors.

Co-researcher Rashid Bashir said, "There are many potential applications for the new bandage, from directing the growth of blood vessels around a blocked artery, to increasing the vascularization of tissues with poor blood flow. Enhancing the growth of new blood vessels in a coordinated pattern after surgery may also reduce recovery time and lessen the amount of scar tissue."

The study will be published in Advanced Materials.

Source: Medindia

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