Angiogenesis is one of the fastest growing research fields, as the formation of new blood vessels plays a crucial role in the developmental biology of embryos as well as in cancer research. The most established assays used to analyze new vessel formation in vitro are the 'tube formation and the 'sprouting assay . In both cases, the formation of new blood vessels is simulated on a gel matrix.
"We have developed a 'well-in-a-well structure, which drastically reduces the amount