Final Activity Report Summary - POLYSELF (Functionalization of polysaccharide-based biomaterials and development of supramolecular materials using self-assembling peptides)
The self-assembled structures grew further to macroscopic dimensions with a high degree of hierarchical order and could take many interesting forms. In one example, the fast initiation of the ordered structures allowed for the formation of films taking the arbitrary shape of the cross section at the liquid-liquid interface. In another example, the initially formed films could buckle and sink into one liquid refreshing the interface and leading to the formation of a self-closing sac.
These hybrid materials were mechanically robust and could even be sutured to tissues, were permeable to proteins and could support cell viability and function. Furthermore, in these sacs, a large defect could be instantly repaired by exposure to solutions of the small molecules. Their unique structural and physical characteristics offered significant potential in cell therapies, drug diagnostics and regenerative medicine applications. Such sacs might be used as controlled environments for cell expansion, stem cell differentiation or bio-signalling studies, acting as a kind of mini cell biology lab. A major advantage was the potential ability to organise cells into unique tissue structures.