Abstract: A scaffold, a method of using the scaffold and a method of preparing the scaffold which may promote the growth or survival of cells and tissues. The scaffold comprises at least one microvascular layer formed from a thin-film fibrin, the microvascular layer configured to sustain and promote growth of cells and having one or more microfluidics channels embedded in the microvascular layer, the channels configured to contain nutrients needed for growth of the cells, and the channels configured to permit diffusion of the nutrients from the channels to the cells.