Artificial Biomelanin: Highly Light-Absorbing Nano-Sized Eumelanin by Biomimetic Synthesis in Chicken Egg White (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Artificial Biomelanin: Highly Light-Absorbing Nano-Sized Eumelanin by Biomimetic Synthesis in Chicken Egg White (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1021/bm501139h (literal)

Alternative label

• della Vecchia, Nicola Fyodor; Cerruti, Pierfrancesco; Gentile, Gennaro; Errico, Maria Emanuela; Ambrogi, Veronica; D'Errico, Gerardino; Longobardi, Sara; Napolitano, Alessandra; Paduano, Luigi; Carfagna, Cosimo; d'Ischia, Marco (2014)
  Artificial Biomelanin: Highly Light-Absorbing Nano-Sized Eumelanin by Biomimetic Synthesis in Chicken Egg White
  in Biomacromolecules
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• della Vecchia, Nicola Fyodor; Cerruti, Pierfrancesco; Gentile, Gennaro; Errico, Maria Emanuela; Ambrogi, Veronica; D'Errico, Gerardino; Longobardi, Sara; Napolitano, Alessandra; Paduano, Luigi; Carfagna, Cosimo; d'Ischia, Marco (literal)

Pagina inizio

• 3811 (literal)

Pagina fine

• 3816 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 15 (literal)

Rivista

• Biomacromolecules (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 6 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 10 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• University of Naples Federico II; Consiglio Nazionale delle Ricerche (CNR); University of Naples Federico II (literal)

Titolo

• Artificial Biomelanin: Highly Light-Absorbing Nano-Sized Eumelanin by Biomimetic Synthesis in Chicken Egg White (literal)

Abstract

• The spontaneous oxidative polymerization of 0.01-1% w/w 5,6-dihydroxyindole (DHI) in chicken egg white (CEW) in the absence of added solvents leads to a black, water-soluble, and processable artificial biomelanin (ABM) with robust and 1 order of magnitude stronger broadband light absorption compared to natural and synthetic eumelanin suspensions. Small angle neutron scattering (SANS) and transmission electron microscopy (TEM) analysis indicated the presence in the ABM matrix of isolated eumelanin nanoparticles (=100 nm) differing in shape from pure DHI melanin nanoparticles (SANS evidence). Electron paramagnetic resonance (EPR) spectra showed a slightly asymmetric signal (g similar to 2.0035) similar to that of solid DHI melanin but with a smaller amplitude (Delta B), suggesting hindered spin delocalization in biomatrix. Enhanced light absorption, altered nanoparticle morphology and decreased free radical delocalization in ABM would reflect CEW-induced inhibition of eumelanin aggregation during polymerization accompanied in part by covalent binding of growing polymer to the proteins (SDS-PAGE evidence). The technological potential of eumelanin nanosizing by biomimetic synthesis within a CEW biomatrix is demonstrated by the preparation of an ABM-based black flexible film with characteristics comparable to those of commercially available polymers typically used in electronics and biomedical applications. (literal)

Prodotto di

• Realizzazione,caratterizzazione e processi di riciclo a basso impatto ambientale di sistemi polimerici micro e nanostrutturati (PM.P02.012.001) (Modulo)

Autore CNR

• MARIA EMANUELA ERRICO (Persona)
• COSIMO CARFAGNA (Unità di personale esterno)
• GENNARO GENTILE (Persona)
• PIERFRANCESCO CERRUTI (Unità di personale interno)

Incoming links:

Autore CNR di

• GENNARO GENTILE (Persona)
• PIERFRANCESCO CERRUTI (Unità di personale interno)
• MARIA EMANUELA ERRICO (Persona)
• COSIMO CARFAGNA (Unità di personale esterno)

Prodotto

• Realizzazione,caratterizzazione e processi di riciclo a basso impatto ambientale di sistemi polimerici micro e nanostrutturati (PM.P02.012.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Biomacromolecules (Rivista)