Accomplishing the great level of complexity and sophistication of natural systems is presented as a major challenge to scientists. A multidisciplinary approach is intended to design and create the next generation of advanced materials and, in this regard, supramolecular chemistry can play a key role. In particular, the combination of organic molecules and biomolecules has appeared as a fascinating approach to take advantage of the self-assembling properties and great specificity of the biological systems to obtain materials with enhanced photophysical features. Peptides and proteins are crucial components in living beings and have demonstrated their versatility to construct artificial systems. Although great progress has been made in terms of control and diversity of structure, translating structure into functionality still remains as a major challenge...