US Patent 7846466 Biodegradable scaffolds and uses thereof

The invention is directed to scaffolds containing porous polymer material prepared by a process of gas foaming/particulate leaching and a wet granulation step prior to gas foaming and particulate leaching, particularly having a characteristic interconnected pore structure, as well as sustained release of protein, DNA or cells, and to methods for using such porous polymer material for preparation of scaffolds, particularly for tissue engineering.