Development of a library of peptides and peptidomimetics to find entities that allowed the transport of molecules (small and big) in different cell lines with very high specific. In this way it was found peptides which were able to carry molecules into specific cell lines. Based on that discovery the group has developed a project to generate anti-tumoral drugs conjugated to these peptides. In addition, the know-how within the group related to the use of nanoparticles as delivery agents is also associated with this research line.