This application discloses methods and materials for preparing functional microvascular beds in the laboratory. These prevascularized constructs can be used to vascularize engineered tissue constructs or to revascularize damaged or diseased tissues or organs following implantation. The prevascularized constructs may also deliver genetically engineered gene products to the bloodstream.

 
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> Microfabrication of membranes containing projections and grooves for growing cells

> Coumarin endcapped absorbable polymers

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