Replacing nitrogen by sulfur : From structurally disordered eumelanins to regioregular thiomelanin polymers - Iacomino, Mariagrazia (University of Naples "Federico II". Department of Chemical Sciences) ; Mancebo Aracil, Juan (Institut Català de Nanociència i Nanotecnologia) ; Guardingo Melián, Mireia (Universitat Autònoma de Barcelona. Departament de Química) ; Martín, Raquel (Universitat Autònoma de Barcelona. Departament de Química) ; D'Errico, Gerardino (University of Naples "Federico II". Department of Chemical Sciences) ; Perfetti, Marco (University of Naples "Federico II". Department of Chemical Sciences) ; Manini, Paola (University of Naples "Federico II". Department of Chemical Sciences) ; Crescenzi, Orlando (University of Naples "Federico II". Department of Chemical Sciences) ; Busqué Sánchez, Félix (Universitat Autònoma de Barcelona. Departament de Química) ; Napolitano, Alessandra (University of Naples "Federico II". Department of Chemical Sciences) ; d'Ischia, Marco (University of Naples "Federico II". Department of Chemical Sciences) ; Sedó Vegara, Josep (Institut Català de Nanociència i Nanotecnologia) ; Ruiz-Molina, Daniel (Institut Català de Nanociència i Nanotecnologia)